Thermally-Activated Cooling from Low-Temperature Waste Heat

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$100,000.00
Award Year:
2004
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-04ER83887
Award Id:
68961
Agency Tracking Number:
75859S04-I
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
176 Waltham Street, Watertown, MA, 02472
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
JosephGerstmann
Dr.
(617) 926-5045
joeg@amtimail.com
Business Contact:
SherifSidhom
Mr.
(617) 926-6700
Research Institute:
n/a
Abstract
75859 Absorption refrigeration is the only currently available method that utilizes low-temperature waste heat to provide cooling. Unfortunately, absorption cooling systems for commercial and small industrial applications are relatively large and expensive, require costly-to-maintain cooling towers, and are difficult to interface with conventional vapor-compression refrigeration equipment. This project will develop a thermally-activated, Rankine free-piston expander-compressor to supplement the compressor output of conventional mechanically-driven vapor-compression refrigeration, thereby reducing its power consumption. ¿Smart¿ valves and translational counterweights will be used to overcome the limitations of previous designs, thereby providing efficient and vibration-free thermally-activated refrigeration. Phase I will demonstrate feasibility by modeling the dynamics and thermodynamics of the proposed device, projecting its performance over a range of operating conditions, and producing a preliminary design. Commercial Applications and Other Benefits as described by the awardee: The technology should benefit commercial and small industrial energy consumers by providing a practical and cost-effective way to recover useful energy from low-temperature waste heat. Applications include internal combustion engines and microturbine exhaust; boiler, furnace, and oven exhaust; low-pressure steam; solar; and other heat sources with heat output temperatures of 200¿F to 250¿F.

* information listed above is at the time of submission.

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