STAC

Project Information Center

Reliability Development and Field Demonstration of CO₂ Heat Pump Water Heaters

It is the objective of the proposed effort to improve and verify the reliability of compressors for CO₂ heat pump hot water haters based on results from field trials in commercial applications. A key feature of this work is that carbon dioxide is used as refrigerant, which has been shown to lead to very compact and highly efficiency hot water heat pump systems. This effort focuses on low-cost, highly compact systems for commercial applications where long operating hours lead to very favorable payback periods in the range of one to five years depending on utility rates. The results of this effort will position CO₂ heat pump water heater technology to change the state of the art in the market place.

Contact:

University of Maryland, College Park

Office of Research Administration and Advancement
3112 Lee Building

College Park, MD 20742
(301) 405-6276
Contact: Barbara O'Malley, Sr. Contract Administrator
Email: bomalley@umresearch.umd.edu

Technical Contact:

(301) 405-6276
Contact: Dr. Reinhard Radermacher
Email: raderm@.umd.edu

Partners:

United Technologies Research Center
Tennessee Tech University
Maryland Energy Administration

Cost:

Total project cost: $772,623
STAC-DOE portion: $347,680
Participant portion: $424,943

Statement of Work and Status

Quarterly Reports

Below are the quarterly reports as provided by the project to STAC, excluding some non-substantive and financial information. All available
reports are listed below.

Last Updated: 12/22/06