
Heat Pump Chillers with Chris DesRoches
Tue, Apr 08
|Culinary Dropout
Fuel-Switching Hydronic Systems with Air-to-Water Heat Pumps


Time & Location
Apr 08, 2025, 12:00 PM – 1:30 PM
Culinary Dropout, 2543 E Grant Rd, Tucson, AZ 85716, USA
About the event
This presentation provides an overview of Air-to-Water Heat Pumps (ATWHP), and how they can best be leveraged to reduce building emissions in retrofits of hydronic systems and new construction alike. Designing Air-to-Water Heat Pump systems can be different than designing conventional chiller-boiler systems, however, when the technology and capabilities are understood, the hydronic system can be adapted to suit the central plant Air-to-Water Heat Pumps, and the energy and emissions savings can become significant.Â
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See exactly how this technology fits into a low-carbon future with electrified buildings from the point of view of Energy Engineers, Mechanical Designers, and Energy Modelers. Learn about various ATWHP applications hydronic systems using 2-pipe, 4-pipe and Cascade System approaches, as well as how to best integrate the equipment with Domestic Hot Water systems. This presentation will demonstrate the significant energy use and greenhouse gas emission reduction potential of using reversible ATWHP systems instead of traditional cooling-only air-cooled chillers.Â
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A detailed analysis will show the potential technology benefits of a partial fuel switch to the ATWHP system with Auxiliary Natural Gas or Electric Boiler for Peak Winter days and show the energy comparison and carbon reduction potential for various supplementary heating means.Â
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The presentation concludes with an overview of operational cost comparisons of fossil fuel and electric heating systems, and how the financials will continue to become more favorable for electrified systems as governments and utility providers adapt their incentives, programs, and targets to transform the market towards sustainable electrified designs
Tickets
Regular
Goes on sale: Mar 12, 7:00 AM$50.00Student Ticket
For ASHRAE Student Members
Goes on sale: Mar 12, 1:00 PM$0.00
Total
$0.00