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IMPROVED WORKING FLUIDS FOR ABSORPTION CYCLES

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
10925
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
10925
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
TECHNOLOGY DEVELOPMENT GROUP, INC.
41901 Wolverine Road Shawnee, OK 74804-0951
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1989
Title: IMPROVED WORKING FLUIDS FOR ABSORPTION CYCLES
Agency: DOE
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

THE DEVELOPMENT OF MORE COMPETITIVE ABSORPTION REFRIGERATIONSYSTEMS COULD REDUCE PRIMARY ENERGY USE AND ENERGY COSTS ANDALLOW USE OF NATURAL GAS FOR COOLING. ABSORPTION CYCLE EFFICIENCY APPROACHES THEORETICAL CYCLE LIMITS, BUT THE FLUIDS USED LIMIT THE RANGE OF OPERATING TEMPERATURES AND PRESSURES. PROBLEMS WITH CONVENTIONAL LITHIUM BROMIDE (LIBR)-WATER AND WATER-AMMONIA SYSTEMS ALSO INCLUDE CORROSIVITY AND TOXICITY, CRYSTALIZATION, AND FLUID VOLATILITY. MIXTURES OF GLYCOLS AND POLYMERS AS THE ADSORBENT, WITH EITHER WATER OR METHANOL AS THE REFRIGERANT,WILL BE TESTED AS ABSORPTION CYCLE FLUIDS. USED ALONE, THE LOW WATER CAPACITIES OF PURE GLYCOLS AT LOW WATER PRESSURES RESULT IN UNACCEPTABLY LOW ABSORPTION CYCLE COEFFICIENTS OF PERFORMANCE (COPS). HOWEVER, IT HAS BEEN SHOWN THAT ADDING CERTAIN POLYMERS TO GLYCOLS RESULTS IN A THREEFOLD CAPACITY IMPROVEMENT AT LOW WATER VAPOR PRESSURES. GLYCOL-POLYMER-WATER SYSTEMS HAVE THE POTENTIAL FOR COOLING COPS SIMILAR TO LIBR-WATER AND FOR OPERATING OVER A WIDER RANGE OF CONDITIONS WITHOUT CRYSTALLIZATION. THEY ARE ALSO NON-CORROSIVE. GLYCOL-POLYMER-METHANOL SYSTEMS COULD BE USED FOR BOTH HEAT PUMP AND COOLING APPLICATIONS, WOULD HAVE LOWER DISTILLATION ENERGY REQUIREMENTS AND HIGHER COPS, AND WOULD BE LESS TOXIC THAN WATER-AMMONIA. THERMODYNAMIC RELATIONSHIPS OF THE GLYCOL-POLYMER SYSTEM WITH WATER AND METHANOL REFRIGERANTS WILL BE DETERMINED DURING PHASE I USING A SARTORIUS MICROBALANCE. THE DATA WILL BE USED TO DESIGN IMPROVED ABSORPTION CYCLES.

Principal Investigator:

Dr Robert J Copeland
Principal Investigator
3034227953

Business Contact:

Small Business Information at Submission:

Technology Development Assocs
12421 W 49th Ave #6 Wheat Ridge, CO 80033

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