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Heat Pumps—The Well-Tempered Future of A/Cs

Cars That Think

Instead, he and others are trying to invent new climate-control technology that doesn’t further exacerbate the dangers facing the planet’s climate. Winners of the 2021 Global Cooling Prize—both heat pumps—reduce cooling’s climate impact by as much as 80 percent. If, like 60 percent of the U.S. Still, in the U.S.,

Future 142
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NREL researchers point toward building energy efficiency instead of long-term storage

Green Car Congress

An open-access paper on the work, “Optimal Strategies for a Cost-Effective and Reliable 100% Renewable Electrical Grid,” appears in the Journal of Renewable and Sustainable Energy. Minimizing long-duration storage is a key element in trying to achieve the target cost-effectively. —Sammy Houssainy, co-author.

Building 186
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CMU county-level study shows plug-ins have larger or smaller lifecycle GHG than gasoline ICE depending on regional factors

Green Car Congress

Jeremy Michalek accounted for regional differences in emissions due to marginal grid mix; ambient temperature; patterns of vehicle miles traveled (VMT); and driving conditions (city versus highway). The researchers said this is due to the combined effect of grid carbon intensity, highway driving, and regional temperature.

Gasoline 150
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A wood-burning EV charger? – Charged EVs

Baua Electric

Florida-based Air Burners, a manufacturer of air curtain burner systems, collaborated with Rolls-Royce and Volvo Construction Equipment to develop a portable machine that turns biomass waste into energy. The BioCharger is designed to provide off-grid power from vegetative waste.

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Study finds urban waste heat affects temperatures across thousands of miles, warming some areas and cooling others

Green Car Congress

degrees Fahrenheit), according to the research by scientists at the Scripps Institution of Oceanography, University of California, San Diego; Florida State University; and the National Center for Atmospheric Research. The results show that the inclusion of energy use at 86 model grid points where it exceeds 0.4?W?m

Waste 262
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CMU team finds regional temperature differences have significant impact on EV efficiency, range and emissions

Green Car Congress

Thus, the efficiency of battery electric vehicles can vary with ambient temperature due to battery performance—as well as the energy required for cabin climate control. Reduced efficiency results in increased energy consumption and increased emissions from the electricity grid when BEVs charge. —Yuksel and Michalek.

Emissions 150
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Researchers describe the “where” and “when” of life cycle emissions from gasoline and ethanol in the US

Green Car Congress

Life cycle inventories have typically been presented at global, national, or regional levels—sufficient for understanding global processes such as climate change and fossil fuel depletion, but insufficient for the analysis of local processes such as air pollution, according to the researchers.

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