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October 2022

Understanding refrigerant emissions from air-conditioning (AC) equipment is critical for accurately estimating its global warming impacts. This month’s cover article describes development of a primary data collection method to estimate average refrigerant emission rates of R-22 and R-410A in AC equipment by examining historical refrigerant used relative to the initial refrigerant charge of the AC equipment inventory.

Features:
Technology Award: Urban Mixed-Use Building Uses Geothermal System
Technology Award: School System Improves Energy Performance With Integrated Approach
Analysis of Refrigerant Use for AC Equipment Maintenance 
Potential Pathway to HVAC System Fuel Feed Automation, Optimization

Standing Columns:
Data Centers: Which Free Cooling Technology Should We Select For Data Centers
IEQ Applications: An Update on ASHRAE/ASHE Standard 170
Engineer’s Notebook: Learning About TMY
Refrigeration Applications: Decompression

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2022 AHR TodayASHRAE Journal''s AHR Today

Stay up-to-date with ASHRAE Journal's coverage of the 2022 AHR Expo, including the latest information on the 2022 Innovation Awards. Read more

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AMCA inmotion

The 2021 edition of Air Movement and Control Association’s award-winning magazine includes articles on the impact of large-diameter ceiling fans on COVID-19 exposure, ceiling fan energy index, the use of control dampers in data centers, parking-garage ventilation, severe-duty louvers, and the AMCA laboratory and Certified Ratings Program.

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newsletters100px.jpgASHRAE Journal  Newsletter connects today’s technology trends with relevant peer-reviewed content. It is emailed to ASHRAE members on the second and fourth Tuesday.

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