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ASHRAE Membership

ASHRAE membership is open to any person associated with heating, ventilation, air conditioning or refrigeration. ASHRAE is unique because its membership is drawn from a wide range of disciplines relating to the HVAC&R field. Approximately 51,000 individuals from more than 100 nations belong to the Society.

Discounts on Publications

ASHRAE members earn 15% off publications. Hundreds of titles are available including the complete collection of ASHRAE Standards including 90.1, 62.1 and 189.1.
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When you join ASHRAE, you are making an investment in yourself. When you become active in the Society by giving your time and sharing your knowledge, you get even more out of that investment.

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Each month, all over the world, ASHRAE chapters convene for an informational program featuring a speaker or topic that is key to professionals in the industry. Meet with your peers and share ideas.
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Resources & Publications

Sponsored White Papers - By Topic

Topics Companies

Ground-Source Heat Pumps
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Parker Hannifin
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Properly Treat Boiler Water for Efficient, Long-Term Operation

To ensure a boiler runs properly over the course of its lifetime, treating the water that circulates within the system is mandatory. If the water is not treated properly, the boiler will begin to have problems within the first year, and its useful life will be significantly shortened. Boiler symptoms resulting from untreated water include overheating, failure to produce hot water or steam, a drop in the boiler flow rate and an overall loss of efficiency. Water treatment recommendations vary depending on the operating pressure of the boiler, the application (steam or hot water), and other parameters. Review the recommended guidelines to prevent corrosion and scaling in low pressure boilers.

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[Content Provided by Cleaver-Brooks]



Alexander Elementary School

Like many schools constructed in the early 1980s, Alexander Elementary was designed to conserve energy. One energy saving approach the industry endorsed at that time was to reduce the outdoor air ventilation to 5 cfm per person, thereby reducing the amount of energy needed to condition the outdoor air. Unfortunately, that effort to save energy in the 1980s prevented the school from meeting ventilation codes in 1997. ASHRAE Standard 62-89 now prescribes 15 cfm per student. Houston’s code can require even more outdoor air depending on the school design. To comply with the local code, the Alief Independent School District needed to quadruple the amount of outdoor air entering the Alexander school. The district also wanted a reliable ventilation solution that would fit its budget, be easy to maintain and help control indoor humidity — always an important concern in the humid Houston climate.

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[Content Provided by Greenheck]

Industrial Damper Torque — How the Options You Select Affect Actuator Selection and Costs

This article will provide background on the various causes of damper torque and help you understand how these causes may affect your overall required torque to operate the damper and the cost impact of over-specifying. Unlike commercial HVAC dampers, operating torque for heavy duty industrial dampers is not determined on a square foot face area basis. High pressures and velocities, as well as bearing friction and axle seals, can create elevated torque requirements that have to be considered in each application.

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[Content Provided by Greenheck]

Ground-Source Heat Pumps

Energy Modeling of Ground Source Heat Pump vs. Variable Refrigerant Flow Systems in Representative US Climate Zones

The ground source heat pump (GSHP) and variable refrigerant flow (VRF) systems are the most competitive HVAC technologies in the current market. However, there are very few studies reporting the comparison of the annual energy consumptions and Electric Peak demand reductions between GSHP and VRF systems because of the limitation of the whole building energy simulation software. Current version of EnergyPlus can model both GSHP and air-source VRF. Therefore, three representative US climate zones including Chicago, Baltimore and Atlanta are selected for conducting this comparison study. The EnergyPlus simulation results show that the GSHP system not only saves more energy than the air-source VRF system but also significantly reduces the Electric Peak demand regardless the climate conditions. This makes the GSHP system a more desirable energy effi cient HVAC technology for the utility companies and their clients.

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[Content Provided by ClimateMaster]



How to Achieve LEED Points by Installing VRF HVAC Systems

A state-of-the-art HVAC technology, Variable Refrigerant Flow (VRF) zoning systems are poised for dramatic growth in all areas of commercial construction because they provide precise zoned control that can contribute points toward LEED® certifications. This paper describes the major benefits of VRF systems and how to garner LEED points by applying these systems. But first, a quick review of this cutting-edge technology. VRF zoning is a method of providing precise comfort control to buildings with multiple floors and areas by moving refrigerant to the zone to be heated or cooled. The systems, which can simultaneously cool some zones while heating others, have many benefits.

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[Content Provided by Mitsubishi]

Micro Thermo Technologies Transcritical CO2

Awareness of climate change has altered the landscape of modern refrigeration. A focus on greenhouse gases (GHG), the carbon “footprint” of organizations and regulatory limits on HFCs has encouraged many organizations to look for alternative ways of providing refrigeration. One way in which companies lower their contribution to GHGs is using alternate refrigerants - like Carbon Dioxide (CO2) - that have significantly reduced impact on the environment. Micro Thermo Technologies recently worked with a large customer to manage the first supermarket transcritical CO2 refrigeration system in the U.S.

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[Content Provided by Parker Hannifin]

Mixing Air to Maximize Savings

Good blending of outside air (OA) and return air (RA) streams is crucial to minimizing annual AHU energy consumption and providing good winter freeze protection for coils. Many designers assume that the section of the AHU commonly called the ‘mixing box’ will provide the effective and necessary air blending… an assumption which often leads to irritating and expensive operational results. In central station AHU’s, when OA and RA streams meet in the “mixing box” (a true misnomer), the intent is that the new Mixed Air has a consistent temperature and moisture characteristic at all points in a given downstream face area. Unfortunately, the widely adopted “best practice” of positioning the OA and RA dampers to flow towards each other does a terrible job of mixing the air.

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[Content Provided by Trane]


Pressure Control for Today's High Performance Green Buildings

The control of building pressure is essential to maintain acceptable indoor air quality (IAQ), thermal comfort and structural integrity. Negatively pressurized buildings result in the transport of untreated outdoor air into the building. This untreated air will result in:

  • the transport of dirt, dust and other contaminants
  • the transport of moisture in humid climates (climates where the outside dew point exceeds 60 degrees F)
  • humidity control issues that result from the transport of untreated moisture
  • mold growth in and near the buildng envelope that result when the outdoor air temperature varies significantly from the indoor air temperature
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[Content Provided by Ebtron]


Variable Capacity Compressors and Variable Speed Fans Save Energy and Save Money

Many applications can benefit from HVAC equipment with variable capacity scroll compressors and variable speed supply fans that reduce operating costs. With the 180,000 square foot department store in Naples, Florida, Dillard’s sought the expertise of AAON in order to accomplish significant energy savings and still provide many years of unit operation in a highly corrosive coastal environment. This paper lays out the issues faced by the Dillard’s department store in Naples and how the AAON equipment with variable capacity compressors, variable speed fans, and e-coated coils was able to solve them.

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[Content Provided by AAON]


Ventilation of Commercial Dishwashing Machines

Proper ventilation of cooking appliances and dishwashers in commercial kitchens is critical to correct operation, controlling operational costs and ensuring comfort conditions for the staff. The heat and humidity from dishwashers, and associated sensible and latent heat load to the space, is significant. The heated water vapor from dishwashers, if not properly ventilated, escapes into the room adding a significant latent heat load to the space, causing discomfort and adding considerable cooling load to the building HVAC system.

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[Content Provided by CaptiveAire]


Please contact Greg Martin at gmartin@ashrae.org for information on posting sponsored white papers on this page.