search

UMD    AML






Two Center for Environmental Energy Engineering (CEEE) faculty members, along with co-writers from the American Society of Refrigeration, Heating, and Air-conditioning Engineers, have published new findings on climate performance and the carbon footprint of air-conditioning.  Dr. Yunho Hwang, Research Professor and Associate Director, and Research Assistant Professor Jiazhen Ling, along with American Society of Heating Refrigeration, and Air-conditioning Engineers (ASHRAE) co-authors Stephen Andersen, and James Wolf, published 'Life-Cycle Climate Performance Metrics and AC Carbon Footprint' in the ASHRAE Journal. In the paper they explain that CFC and HCFC refrigerants are being phased out by The Montreal Protocol on Substances that Deplete the Ozone Layer. Today, 99% of emissive ozone-depleting substances (ODS) uses have been halted, with critical use exemptions for methyl bromide in quarantine and pre-shipment uses and continuing essential use exemp-tions for laboratory, analytical, and other minor uses.  The team further describes how AC energy efficiency metrics can be used to predict actual field performance.  As well, they identifying and make  corrections to “Average” assumptions made in previous energy efficiency metrics.  This, and other findings in the article lead to a greater understanding on how improvements in energy efficiency can lead to greater protections to our climate.

ASHRAE has made the paper available for free download.

The Center for Environmental Energy Engineering at the University of Maryland is a leader in research and education in environmentally responsible, economically feasible integrated energy conversion systems for buildings and transportation. Research focuses in particular on air-conditioning, refrigeration and heat pumping and integrated cooling heating and power systems.



December 3, 2018


«Previous Story  

 

 

Current Headlines

Search Open for Full-Time Faculty Positions in Mechanical Engineering

Maryland Engineers Take On Big Challenges in Medicine

CEEE Study Explores How AI Can Reduce HVAC Energy Consumption

Justin Di Palo: Advancing Sustainable Living

Colton Honored with Microfluidics on Glass Award

How Much Wood Could a Heat Pump Dry?

Jump Start Program Gives CEEE Grad Students a Boost

UMD to Host International Graduate Engineering Course on Sustainability

State-of-the-Art 3D Nanoprinter Now at UMD

Das Named Pioneering Researcher by Chemical Communications

 
 
Back to top  
AML Home Clark School Home UMD Home ENME Home