USA flag logo/image

An Official Website of the United States Government

High Efficiency R744 Centrifugal Chiller

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
94611
Program Year/Program:
2009 / SBIR
Agency Tracking Number:
90219
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
R&D Dynamics Corporation
49 West Dudley Town Road Bloomfield, CT -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2009
Title: High Efficiency R744 Centrifugal Chiller
Agency: DOE
Contract: DE-FG02-09ER85352
Award Amount: $99,996.00
 

Abstract:

Most medium and large commercial and industrial facilities use packaged water chillers of 50 ton capacity and higher for air conditioning and refrigeration. The current refrigerants used are HFC-134a or HCFC-123, which need to be replaced by an environmentally benign alternative that offers zero ozone-depletion and negligible global warming. Among all candidate refrigerants, R744 (carbon dioxide) has been found to be the best, taking into account all requirements, including non-flammability and non-toxicity. However, due to R744¿s inherent inefficiency, a direct application to the conventional chiller cycle requires high power consumption, .2 kW/ton, which is far higher than the ASHRAE recommended value of 0.576 kW/ton. This project will develop a high-efficiency R744 chiller cycle. In Phase I, the feasibility of the innovative R744 chiller concept will be confirmed through a thermodynamic analysis. In Phase II, a prototype will be fabricated and tested to confirm the high-efficiency target. In Phase III, a prototype package of 150 ton capacity will be built and field tested. Commercial Applications and other Benefits as described by the awardee: The high-efficiency R744 chiller initially will be marketed by targeting the replacement of existing reciprocating and screw chillers in commercial and industrial sectors ranging from 50 to 400 tons of cooling capacity.

Principal Investigator:

Giri Agrawal
Dr.
8607261204
AGRAGIRI@RDDYNAMICS.COM

Business Contact:

Dennis Burr
Mr.
8607261204
DENNISB@RDDYNAMICS.COM
Small Business Information at Submission:

R&d Dynamics Corporation
15 Barber Pond Road Bloomfield, CT 06002

EIN/Tax ID: 061302163
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No