Kele Blog

Optimize Your HVAC System for Fall

As the seasons change from summer to fall, it’s essential to adjust HVAC systems accordingly to ensure optimal energy efficiency and comfort. By implementing strategic adjustments, you can reduce energy consumption, improve indoor air quality, and enhance overall building performance.

What to Keep in Mind for the Fall Transition

 

Temperature Adjustments

  • Gradual Reductions: Gradually decrease thermostat settings to align with cooler outdoor temperatures.
  • Nighttime Setbacks: Update programmable thermostats to lower temperatures during unoccupied hours.
  • Zone Control: Re-implement the correct settings for zone control systems to regulate temperatures in different areas of your building based on usage patterns.

 

Ventilation and Air Quality

  • Outdoor Air Intake: Increase outdoor air intake to improve indoor air quality and reduce humidity levels.
  • Filter Changes: Replace air filters to maintain optimal performance and prevent energy loss.
  • Ventilation Schedules: Adjust ventilation schedules to align with occupancy patterns and outdoor conditions.

 

Seasonal Maintenance

  • Heating System Tune-ups: Ensure heating systems are in proper working condition by conducting thorough inspections.
  • Cooling System Inspection: Inspect your cooling system for any issues or inefficiencies that may need addressing during the summer season.
  • Ductwork Sealing: Seal any openings in your ductwork to prevent leaks and energy loss, and improve system efficiency.

 

BAS Optimization

  • Schedule Adjustments: Update your BAS schedules to reflect seasonal changes and optimize energy consumption.
  • Sensor Calibration: Verify the accuracy of sensors and calibration settings.
  • Demand Response Programs: Explore opportunities to participate in demand response programs and reduce energy costs during peak periods.

 

By implementing these strategies and leveraging the resources available, you can optimize BAS and HVAC systems for the fall season, reduce energy consumption, and create a more comfortable and sustainable building environment.

Visit kele.com or call us today so we can help you survive the fall season. Kele’s got you covered!

Fire Prevention & Safety: It’s Time for Fire and Smoke Damper Inspections

Ensuring fire and smoke dampers are properly functioning is critical for building safety. These essential components play a vital role in containing fires and preventing the spread of smoke. In honor of National Fire Prevention and Safety Week, which is just around the corner (October 6-12), we’re going to do a deep dive into the National Fire Protection Association (NFPA) codes and standards related to fire and smoke damper inspections, along with practical guidance for building owners and facility managers.

NFPA 105 and NFPA 80: Key Requirements

NFPA 105 and NFPA 80 outline the specific requirements for testing and inspecting fire and smoke dampers. According to these standards, fire and smoke systems and dampers must be inspected one year after installation and then every four years. Hospitals are required to conduct inspections every six years.

Essential Inspection Steps

Accessibility: Verify that there is full, unobstructed access to the damper.

Functional Testing:

Option 1—Dampers with Position Indication

  • Test the damper with normal HVAC airflow to ensure it opens and closes correctly.
  • Use the position indication device to confirm the damper’s position.
  • Remove electrical power or air pressure to close the damper.
  • Verify that the damper closes completely.
  • Re-apply power to reopen the damper.
  • Confirm the damper’s fully open position.

Option 2—Dampers without Position Indication

  • Visually confirm the damper’s position.
  • Ensure no obstructions are in the path of the damper blades.
  • Close the damper manually.
  • Visually confirm complete closure.
  • Re-open the damper.
  • Visually confirm the fully open position.

 

Additional Considerations

  • Regular Maintenance: Conduct routine maintenance on fire and smoke dampers to address any issues affecting their performance.
  • Documentation: Maintain detailed records of inspection results and maintenance activities.
  • Emergency Procedures: Develop and implement emergency procedures for responding to fire and smoke damper failures.
  • Professional Inspection: Consider hiring a qualified professional to conduct inspections, especially for complex systems.

By adhering to NFPA 105 and NFPA 80, and following the outlined inspection procedures, building owners and facility managers can significantly enhance fire safety and protect occupants and property. Regular inspections and maintenance are essential for ensuring the proper functioning of fire and smoke dampers.

Plus, take part in 2024’s Fire Prevention and Safety Week! This year’s theme, “Fire Prevention and Safety: Everyone’s Responsibility,” emphasizes the importance of individual and community involvement in safeguarding lives and property from fire hazards. By understanding fire safety principles and taking proactive measures, we can reduce the risk of fires and minimize their devastating consequences.

 

Additional Resources:

National Fire Protection Association (NFPA): https://www.nfpa.org/

Building Industry Consulting Service International (BICSI): https://www.bicsi.org/

American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE):

https://www.ashrae.org/

 

Visit kele.com or call us today to get help with all your fire prevention and safety needs!

Helping HVAC Systems: Summer Humidity Recovery

Humidity can significantly impact the performance and efficiency of HVAC systems, especially during the summer months. High humidity levels tend to lead to a wide range of issues, including equipment failures, mold growth, and energy inefficiency. That’s why it’s important to understand the challenges posed by summer humidity on HVAC systems and provide practical strategies for recovery and prevention.

Understanding the Impact of Humidity

  • Equipment Failures: Excessive humidity can lead to corrosion, condensation, and other issues that can damage HVAC components.
  • Energy Inefficiency: Humidity can reduce the efficiency of HVAC systems, increasing energy consumption and costs.
  • Mold Growth: High humidity levels create the ideal living conditions for mold spores to flourish.

By implementing these practical approaches, you can mitigate the negative consequences of humidity and restore your HVAC system’s optimal performance.

Recovery Strategies for HVAC Systems

  1. Dehumidification
    • Dedicated Dehumidifiers: Install dedicated dehumidifiers to remove excess moisture from the air.
    • HVAC Dehumidification Features: Some HVAC systems have built-in dehumidification capabilities that can be adjusted to meet specific humidity levels.
    • Proper Ventilation: Ensure proper ventilation to reduce indoor humidity levels.
  2. Maintenance and Cleaning
    • Coil Cleaning: Clean evaporator and condenser coils to improve efficiency and prevent mold growth.
    • Drain Pan Inspection: Inspect and clean drain pans to prevent clogs and water leaks.
    • Regular Maintenance: Schedule routine maintenance for your HVAC system to identify and address any humidity-related issues.
  3. Insulation and Sealing
    • Air Sealing: Seal air leaks around windows, doors, and ductwork to reduce humidity infiltration.
    • Proper Insulation: Ensure your home is adequately insulated to prevent moisture from entering.
  4. Ventilation
    • Cross-Ventilation: Create opportunities for cross-ventilation to reduce humidity levels when able.
    • Exhaust Fans: Use exhaust fans in bathrooms, kitchens, and laundry rooms to remove moisture-laden air.

While these strategies effectively address existing humidity issues, proactive measures can help prevent future problems. By implementing the following preventive steps, you can create a more conducive environment for your HVAC system and minimize the impact of humidity.

Preventive Measures

  • Humidity Control Devices: Consider installing humidity control devices like thermostats with built-in humidity sensors.
  • Avoid Moisture Sources: Minimize indoor sources of moisture, such as leaky pipes or water leaks.

By implementing these strategies, you can help HVAC systems recover from the effects of summer humidity and maintain optimal performance throughout the year. Regular maintenance, proper ventilation, and effective dehumidification are key to ensuring a healthy and comfortable indoor environment.

Your Kele Team is here to help you get ahead of bad humidity and keep levels where they belong. Start sourcing for parts on kele.com today or call us now for customized solutions—Kele makes it easy!

Preventing HVAC-Related Fires: A Fire Safety Guide for Building Owners and Facilities Managers

HVAC systems are essential for maintaining comfortable indoor environments. Take it from us here in Memphis, TN, we MUST have AC or things go off the rails! However, HVAC systems can also pose fire hazards if not properly maintained and operated. Today we’re going to delve into the key contributing factors of HVAC-related fires and provide practical strategies for building owners and facilities managers to mitigate risks and ensure fire safety.

Common Causes of HVAC-Related Fires

  1. Electrical Failures
    • Arcing: Electrical discharge(s) between conductors can ignite combustible materials.
    • Overloading: Excessive electrical loads can cause overheating and potential fires.
    • Short Circuits: Faulty wiring or loose connections can cause electrical shorts, sparking fires.
  2. Combustible Materials
    • Dust and Debris: Dust and debris can accumulate and then ignite when exposed to heat sources.
    • Insulation and Ductwork: Improperly installed or deteriorated insulation and ductwork can serve as fuel for fires.
  3. Mechanical Failures
    • Bearing Failures: Overheated bearings can cause ignition in nearby materials.
    • Belt Slippage: Belt slippage creates friction and can generate heat and potentially cause fires.
  4. Improper Maintenance
    • Lack of Regular Inspections: Regular inspections can help identify and address potential hazards.
    • Neglect of Cleaning: Accumulated dust and debris can increase fire risk.

Understanding the common culprits behind HVAC fires is essential for effective fire safety and prevention. By recognizing the potential hazards, such as electrical failures, combustible materials, and mechanical issues, we can take proactive steps to mitigate risks. Now let’s jump into a wide range of preventive measures that can significantly reduce the likelihood of HVAC-related fires and ensure the safety of your building.

Preventive Measures for HVAC Systems

  1. Regular Inspections and Maintenance
    • Annual Inspections: Conduct quarterly and annual inspections to assess the condition of ductwork, electrical components, insulation, and mechanical systems.
    • Cleaning: Regularly ensure clean ducts, filters, and other components to remove dust and debris.
    • Lubrication: Ensure proper lubrication of moving parts to prevent friction and overheating.
  2. Electrical Safety
    • Circuit Breakers: Install appropriate circuit breakers to prevent overloading.
    • Ground Fault Circuit Interrupters (GFCIs): Use GFCIs in areas with high moisture or that have the potential for electrical shock.
    • Proper Wiring: Ensure that all wiring is done according to electrical codes and that you have no loose connections.
  3. Fire Suppression Systems:
    • Sprinklers: Install sprinkler systems in areas where HVAC equipment is located.
    • Fire Extinguishers: Place fire extinguishers near HVAC equipment and ensure that personnel are trained in their use.
  4. Combustible Materials:
    • Insulation: Use fire-resistant insulation materials.
    • Ductwork: Install ductwork that is properly sealed, installed, and insulated.
    • Ventilation: Ensure adequate ventilation to prevent heat buildup.

While the abovementioned preventive measures are crucial for mitigating HVAC fires, it’s essential to consider additional factors to ensure comprehensive fire safety. By addressing these supplementary considerations, you can further enhance the resilience of your HVAC system and better protect your building from fire hazards.

Additional Fire Safety Considerations

  • Emergency Procedures: Develop and implement emergency procedures for dealing with HVAC-related fires.
  • Employee Training: Train employees on fire safety procedures and the proper use of fire extinguishers.
  • Building Codes: Comply with local building codes and industry standards regarding HVAC systems.

By being aware of what can cause fires and implementing preventive measures, building owners and facilities managers can significantly reduce the risk of HVAC-related fires and ensure the safety of their occupants. Regular inspections, proper maintenance, and adherence to safety standards will create good fire safety habits.

Your Kele team is here to help you solve fire safety issues like electrical failures, issues with combustible materials, mechanical failures, improper maintenance, and more. Chat with us on kele.com now or call us for custom solutions to help you do business safer and better.

 

Staying Safe on the Job: The Importance of PPE in HVAC & BAS Industries

The HVAC and BAS industries play a crucial role in keeping our buildings comfortable, healthy, and energy efficient. However, technicians in these fields often face potential hazards, making personal protective equipment (PPE) essential for safety.

Why is PPE Important in HVAC and BAS?

The Occupational Safety and Health Administration (OSHA) emphasizes the importance of PPE in preventing workplace injuries and illnesses. In HVAC and BAS work, technicians may encounter a variety of hazards, including:

  • Electrical Hazards: Working with electrical components requires appropriate PPE like insulated gloves, safety glasses, and properly rated footwear to prevent electrical shock.
  • Chemical Hazards: Refrigerants, cleaning agents, and other chemicals used in HVAC and BAS systems can be harmful if inhaled or if they come into contact with skin. Respiratory protection, chemical-resistant gloves, and safety glasses are crucial to prevent exposure.
  • Physical Hazards: Sharp edges from sheet metal, falling objects, and working at heights all pose potential risks. Hard hats, safety glasses, gloves, and proper fall protection equipment are essential for mitigating these hazards. 

Types of PPE for HVAC and BAS Technicians

  • Respiratory Protection: Respirators with appropriate filters protect against airborne contaminants like dust, fumes, and chemicals.
  • Eye Protection: Safety glasses or goggles shield eyes from flying debris, splashes, and harmful radiation.
  • Hand Protection: Gloves protect hands from cuts, abrasions, and chemical exposure. The type of glove material should be chosen based on the specific hazard.
  • Foot Protection: Safety boots or covers with proper electrical ratings and slip-resistant soles are essential.
  • Head Protection: Hard hats protect against falling objects and head injuries.
  • Hearing Protection: Ear plugs or muffs can be necessary in situations with loud noises.

Beyond the Basics

In addition to the standard PPE mentioned above, HVAC and BAS technicians may require specialized equipment depending on the task. For example, working in confined spaces may require a specific breathing apparatus, while working with high-voltage systems may necessitate additional electrical safety gear.

Beyond Protection: Building a Culture of Safety

PPE is an essential component of a comprehensive safety program in both the HVAC and BAS industries. However, its effectiveness relies on a commitment to safety from both employers and employees. Employers should provide training on proper PPE selection, use, and maintenance. Employees should take responsibility for using PPE correctly and reporting any damaged or missing equipment.

By prioritizing the use of proper PPE and fostering a culture of safety, HVAC and BAS companies can create a healthier and more productive work environment for their technicians. Remember, safety is not an option – it’s a necessity.

Kele recently launched new products on kele.com that focus on safety and protection. Check out brands like Radians and more that are trusted industry partners who work to keep YOU safe! Browse from thousands of options today and stock up on the right PPE you need to be safe and successful out in the field.

 

Further Resources for Safety Information

HVAC and BAS Panels: The Customizable Command Center of Your Building

HVAC and BAS panels and enclosures serve as critical control centers for modern buildings. When utilized correctly, these panels can be the brain behind efficient operation and maximize protection, providing a centralized hub for monitoring, controlling, and optimizing various systems.

Understanding Panels

Core Components of HVAC Panels:

  • Power: Circuit breakers, fuses, and power supplies ensure the panel receives and distributes electricity safely and reliably.
  • Sensing and Command: Signal transmitters, converters, and relays translate real-world conditions like temperature and humidity into data the system can understand.
  • Control: Programmable logic controllers (PLCs) receive data from sensors and relays, execute pre-programmed logic, and send commands to control equipment.
  • Interface: Pilot devices like switches and lights provide a user interface for manual interaction with the system. Modern panels may also incorporate Human-Machine Interfaces (HMIs) for enhanced data visualization and control.
  • Wiring: High-quality wires and cables ensure proper signal transmission and system operation.

BAS Panels Mean Integrated Building Control

BAS panels take a broader approach, integrating and controlling multiple building systems, including HVAC, lighting, security, and energy management. They utilize advanced software and hardware to monitor building performance, identify inefficiencies, and optimize operations across all connected systems.

Why Do You Need Customizable HVAC and BAS Panels?

  • Flexibility and Scalability: Customizable panels can adapt to your building’s specific layout, equipment types, and future growth plans. This ensures the system can grow and evolve alongside your needs.
  • Enhanced System Integration: A custom-designed panel ensures seamless integration with your existing HVAC and BAS systems, eliminating compatibility issues and maximizing performance.

 The Benefits of HVAC and BAS Panels Remain the Same:

  • Energy Efficiency
  • Improved Comfort
  • Enhanced Building Management
  • Reduced Maintenance Costs
  • Increased Asset Value

Customizable and pre-fab HVAC and BAS panels offer powerful and adaptable solutions for modern buildings. They provide a centralized hub for monitoring, controlling, and optimizing various systems, leading to improved efficiency, comfort, and cost savings. By investing in a custom-designed panel, businesses and facility managers can create a truly intelligent building environment tailored to their specific needs.

Let Kele handle the heavy lifting to help you do business better in the field. Check out our in-house panel shop and request a quote today. Kele’s got you covered!

Predictive Maintenance for Commercial & Industrial HVAC

In today’s commercial and industrial landscape, maintaining a comfortable and productive environment is crucial. HVAC and building automation systems play a vital role in achieving this goal. However, traditional reactive maintenance, where repairs are made only after equipment fails, can lead to costly downtime, discomfort, and potential safety hazards.

Enter predictive maintenance – a revolution in the HVAC & BAS industry

What is Predictive Maintenance?

Predictive maintenance utilizes data and technology to anticipate potential equipment failures before they occur. Sensors are installed on critical components like compressors, belts, and motors, continuously monitoring performance metrics like vibration, temperature, and energy consumption. This data is then analyzed using advanced algorithms. The National Institute of Standards and Technology even gives some helpful tips and information on how to safely secure your data and technology here.

Benefits for Businesses:

  • Reduced Downtime: Predictive maintenance identifies potential problems early on, allowing for proactive scheduling of repairs during off-peak hours. This minimizes disruption to operations and ensures a comfortable environment for occupants.
  • Lower Repair Costs: Early detection of issues often allows for minor fixes before they escalate into major breakdowns. This can significantly reduce repair costs and extend the lifespan of HVAC and BAS equipment.
  • Improved Energy Efficiency: Predictive maintenance ensures optimal system performance, leading to lower energy consumption and reduced utility bills.
  • Enhanced Comfort and Safety: By proactively addressing potential issues, predictive maintenance helps maintain consistent temperature and air quality, creating a comfortable and safe environment for employees and customers.

Benefits for Customers:

  • Peace of Mind: Customers of buildings who use predictive maintenance on their HVAC and BAS systems can rest assured knowing the environment is well-maintained and less prone to unexpected disruptions.
  • Sustainability: Reduced energy consumption through predictive maintenance contributes to a smaller environmental footprint for businesses, aligning with customer preferences for sustainable practices.

The Future of HVAC

Predictive maintenance is rapidly transforming the commercial and industrial HVAC industry. By leveraging data and technology, businesses can achieve greater operational efficiency, cost savings, and environmental benefits. This ultimately leads to a more comfortable, productive, and sustainable future for both businesses and their customers.

Looking to source the right components to better monitor and maintain systems? Call today or start sourcing now on kele.com—Kele’s got you covered.

To get you started, check out the Belimo EV Series Energy Valves here.

Noise Reduction Technologies in Commercial & Industrial HVAC

The constant hum of HVAC systems can be more than just a minor annoyance. In commercial and industrial settings, excessive noise can negatively impact employee productivity, communication, and even lead to hearing damage. Fortunately, advancements in noise reduction technologies are making quieter HVAC systems a reality.

Why Silence is Golden in Commercial & Industrial HVAC

  • Enhanced Productivity: Studies from the Environmental Protection Agency, show a clear link between noise pollution and decreased cognitive function and worker performance. Quieter HVAC systems can lead to improved concentration, communication, and overall well-being in the workplace.
  • Reduced Health Risks: Long-term exposure to loud noises can cause hearing loss, tinnitus (ringing in the ears), and even increased stress levels. According to the Occupational Safety and Health Administration, quieter HVAC systems can help create a safer and healthier work environment.
  • Improved Customer Experience: In commercial settings like restaurants or retail stores, loud HVAC systems can detract from the customer experience. Noise reduction technologies can contribute to a more pleasant and welcoming environment.

Technologies Leading the Quiet Revolution

Several innovative technologies are addressing noise concerns in commercial and industrial HVAC systems:

  • Advanced Fan Design: According to ASHRAE, fewer fan blade designs incorporate aerodynamic principles to reduce air turbulence, which is a significant source of noise.
  • Duct Silencers: These strategically placed sections of ductwork lined with sound-absorbing materials significantly reduce noise transmission.
  • Vibration Isolation: The Society of Building Science Educators states that mounting HVAC components on vibration-isolating pads or springs minimize noise transfer from equipment vibrations to the building structure.
  • Enclosures and Barriers: Constructing enclosures around noisy equipment like compressors or chillers can significantly reduce noise levels in specific areas.

Benefits for Businesses and Customers

The adoption of noise reduction technologies in commercial and industrial HVAC systems offers a win-win situation for both businesses and customers:

  • Reduced Operational Costs: Quieter HVAC systems can potentially lead to lower energy consumption as noisy components may be operating less efficiently.
  • Improved Asset Lifespan: By minimizing vibrations and stress on equipment, noise reduction technologies can contribute to a longer lifespan for HVAC systems.
  • Enhanced Brand Image: Businesses that prioritize creating a comfortable and healthy work environment can strengthen their brand image and attract top talent.
  • Increased Customer Satisfaction: Quieter environments contribute to a more positive customer experience in retail and hospitality settings. 

A Quieter Future for All 

Noise reduction technologies are rapidly transforming commercial and industrial HVAC systems. By prioritizing quieter equipment and implementing innovative solutions, businesses can create healthier, more productive work environments for employees and contribute to a more comfortable experience for their customers. As technology continues to progress, we can expect even quieter HVAC systems in the future, leading to a quieter and more enjoyable experience for all.

Are you ready to start sourcing for your next job that centers on cost savings for your customers and a more comfortable environment? Call us today or start sourcing now on kele.com—Kele’s got you covered.

In the meantime, check out the IFM Efector VK Series vibration monitor here.

The Hydrogen Economy & the Role of the Valve Industry

*Contributed by Bray—By William Powers, Global Industry Manager of Industrial Gas – Bray International

Hydrogen is the most abundant element in the universe; however, it does not exist on its own and must be produced from a broad range of sources, some of which are kinder to the planet than others. To reach the goal of net zero, it is important to use energy more efficiently and produce it from sustainable resources.

Hydrogen is the most abundant element in the universe; however, it does not exist on its own and must be produced from a broad range of sources, some of which are kinder to the planet than others. To reach the goal of net zero, it is important to use energy more efficiently and produce it from sustainable resources. The variations in hydrogen production are subtle and typically focus on the difference in energy source; the current primary methods are green hydrogen and blue hydrogen. As valves are essential to the production of any type of energy or fuel source, it is interesting to consider what role they will play in the hydrogen economy.

Green and blue hydrogen

Green hydrogen is made from renewable resources such as wind, solar, and water, through a process called electrolysis. This process involves taking water and breaking the hydrogen atoms out of it. There is a major global push to meet net-zero greenhouse gas (GHG) emissions and the production of green hydrogen is driving that initiative forward. This trend has been particularly significant in the U.S. and Europe, where CAPEX is spending hundreds of billions of dollars to create these facilities and a large percentage of it will be government-subsidized. Blue hydrogen is produced by capturing the carbon emissions, via a carbon capture unit & storage (CCUS) system, from a steam methane reformer. This unit breaks the hydrogen out of the hydrocarbons to create energy. This is a great solution for refineries or foundries that do not have a renewable energy source and are looking to reduce emissions in the next 10-20 years. A grey hydrogen facility can be converted to blue by adding a CCUS to the steam methane reformer.

An uphill battle

Although the industry is moving toward these low GHG emission methods of producing hydrogen, there is a very long uphill battle that will need to be waged to usurp grey and black hydrogen production. Government regulations and subsidizing, along with major industrial gas supplier buy-ins, have played a major role in the current global project backlogs as they stand today. More specifically, it is beneficial to investigate the global net-zero initiatives and the direction the world is moving towards. Overall, many major global economies have hydrogen strategies in place that are driving the net-zero mentality forward. The European Union (EU) was the front runner in the net-zero transition in 2019 with the Green Deal and set a target to reduce GHG emissions by at least 55% by 2030, compared to 1990 levels. China, the world’s largest emitter of GHGs, announced its goal to achieve carbon neutrality before 2060, though policy details are lacking at this time. India has established a plan to reduce emissions by 33-35% below 2005 levels by 2030, but they do not have a long-term target for carbon neutrality. In North America, Canada, and the U.S. energy mixes are fossil fuel-dominated. Both governments have net zero GHG targets for 2050 with an intermediate goal of producing 5052% less than 2005 levels by 2030. High gasoline prices and energy security concerns in the wake of Russia’s invasion of Ukraine have augmented the focus on the transition to EVs, but also triggered calls to increase the region’s oil output, suggesting a stasis in decarbonization focus, at least in the short term. From a regulation standpoint, Canada’s Next Steps for Clean Air and a Strong Economy (Government of Canada, 2022) as well as the U.S. Inflation Reduction Act (2022), are major steps towards supporting GHG targets. Within the IRA, the U.S. will be providing USD $8B for the U.S. Department of Energy to invest in regional hydrogen hubs, accelerating uptake in end-use sectors. In addition, USD $30B will be provided for solar panels, wind turbines, batteries, geothermal plants, and advanced nuclear reactors, including tax credits over 10 years. Offshore wind, specifically, has seen a swell of interest with major developers, private equity, and oil and gas majors securing lease areas on the U.S. Atlantic coast. This includes collaborative efforts between Atlas Cop-co and Plug Power for turboexpander production to support LH2 production and transportation. This governmental policy push will be complemented by growing corporate net-zero commitments in the coming years to solidify this net-zero transition.

The next steps

Hydrogen has had several false starts in the past, but momentum has picked up significantly as governments pledge net zero carbon targets as indicated previously. Nevertheless, it is still an early stage of deployment – with several barriers to overcome before a fully developed market can emerge. What are some of those barriers? In terms of 2023 production, green hydrogen costs roughly USD $10/kg, blue hydrogen costs roughly USD $4/kg, and grey hydrogen costs roughly USD $2/ kg. Green hydrogen has the greatest potential to be more economical than grey hydrogen production, but this is not projected to occur until 2050, based on the current rate of net-zero progress goals. Electrolyzer efficiencies are also a major concern for green hydrogen expansion. Although there are currently large-scale electrolyzers in production, the process to convert power to hydrogen and back to power has a round-trip efficiency of 18%-46% depending on the size and type of electrolyzer being utilized. Even if electrolyzer efficiencies are reduced, there are significant renewable energy limitations that need to be addressed. To support some of the current industrial processes that use hydrogen (fertilizers, hydrocracking, desulphurization) it would take 143% of all existing wind and solar power available. This does not factor in any other uses like gas grid enrichment and transportation where hydrogen is currently almost non-existent in the global scope of supply. Clearly, there is a need for a significant uptick in renewable energy sources. Finally, as there are no international standards associated with hydrogen production, current project scopes are not being harmonized. With all these hurdles, new projects are being added to the backlog daily; the proverbial chicken is therefore coming before the egg. With this information in mind, one can ponder what part valves will play in this economy.

The role of valves

Valves will be required in the processes used to form various forms of hydrogen, however, not all valves will have the adequate standards necessary. A butterfly valve, for example, whether it is a zero, double, or triple offset, has many pros inherent in its design for hydrogen applications. Typically, they offer the lowest cost of ownership, the smallest envelope compared to any other valve type, and low fugitive emission capabilities. In terms of the limitations, butterfly valves are prone to cavitation and are limited in pressure drop capabilities due to the disc being in the flow path. Butterfly valves can be utilized in switch valve applications, desulphurization feed, and hydrogen liquefaction. Globe valves will be heavily utilized in feed control, offering a variety of flow characteristics with shorter overall strokes, compared to quarter-turn valves, due to their linear function. The linear function, however, can lead to early packing wear and requires greater force to seat the valve which means a larger actuator is typically needed to support required leakage rates. Globe valves can be found in fuel flow regulation and steam control within both the blue and green production chains. Finally, ball valves will play an important role in the net-zero movement as they offer the highest capacity flow coefficient (Cv) ratio of any valve type, while still being able to support erosive/abrasive media extremely well. Similar to butterfly valves, ball valves are prone to cavitation and offer limited differential pressure and temperature capabilities within hydrogen production. Ball valves will be heavily utilized in ESD shutdown applications as well as hydrogen compression and storage.

Final thoughts

Clean hydrogen is not going to be easy to adapt to on a global scale. While there will be an uphill battle to establish green hydrogen as the primary method for hydrogen production, it is possible to overcome these hurdles, and valve manufacturers are ready to answer the call to support this booming economy to move the global market forward into the future.

Are you looking for valve solutions for your large project solutions? Kele now offers a wide variety of Bray valves to help you achieve success. Call us today for customized solutions or shop online now—Kele’s got you covered!

Preventative Chiller Maintenance: Commercial & Industrial Systems

Commercial and industrial buildings rely heavily on efficient HVAC systems, especially during the hot summer months. Chillers, a crucial component of these systems, work tirelessly to remove heat and maintain comfortable temperatures. However, neglecting preventative chiller maintenance can lead to costly breakdowns and disrupt operations. Here’s how preventative chiller maintenance can keep systems running smoothly and minimize costly repair scenarios.

Understanding Chillers

At the end of the day, chillers are essentially large refrigerators that cool water or a glycol solution. The chilled liquid is then circulated throughout the building to cool air through air handling units (AHUs). Chillers come in various types, including centrifugal, screw, and scroll compressors; each has its own maintenance needs.

Preventative Chiller Maintenance

Regular chiller maintenance is vital for optimal chiller performance and a long lifespan. Here are some key maintenance tips to consider.

  • Scheduled Inspections: Regular inspections by qualified technicians who can identify potential problems before they escalate into major failures are imperative. According to the EPA, these inspections should include checking refrigerant levels, oil analysis, cleaning condenser coils, and inspecting belts and drives for wear and tear. (For more information, visit an EPA source here.)
  • Water Treatment: Proper water quality needs to be maintained in the cooling tower to prevent corrosion and scale buildup on chiller components. Regular water testing and treatment are crucial.
  • Airflow Management: Ensure proper airflow through the condenser coils by regularly cleaning them to remove dust and debris. This allows for efficient heat rejection and optimal chiller performance. (For more information, visit an ASHRAE source here.)
  • Record Keeping: Maintain detailed records of all maintenance activities performed on the chiller. This allows technicians to track trends and identify potential issues early on.

Benefits of Preventative Chiller Maintenance

Investing in preventative chiller maintenance offers several benefits:

  • Reduced Downtime: Regular maintenance helps prevent unexpected breakdowns, minimizing downtime and ensuring consistent cooling for your building or facility.
  • Energy Efficiency: A well-maintained chiller operates more efficiently, leading to lower energy costs and savings.
  • Extended Lifespan: Regular care extends the lifespan of chillers, which can and will save money on costly replacements in the long run.
  • Improved IAQ: Properly maintained chillers contribute to better IAQ by ensuring efficient air circulation and cooling.

Preventative chiller maintenance for commercial and industrial chillers is an investment that pays off down the line. By following a consistent maintenance schedule, you can minimize costly breakdowns, improve chiller efficiency, and extend its lifespan.

By consulting with qualified techs and professionals here at Kele, we can help deliver customized solutions for all your chiller needs when unexpected jobs occur or when routine maintenance checks uncover break/fix needs. Call us today or start sourcing online at kele.com now.