Design of a novel solar air conditioner using a solid-phase absorber. Phase 1. Draft final report, September 20, 1977-September 30, 1978
Experimental and analytical work carried out in Phase I of this program indicate that the reaction of CaCl/sub 2/.H/sub 2/O (calcium chloride monohydrate) with H/sub 2/O vapor to form CaCl/sub 2/.2H/sub 2/O (dihydrate) is thermodynamically and kinetically suitable for use in a solid-phase absorption solar air conditioner with built-in energy storage. The calculated thermal coefficient of performance is 0.69 or greater, with forced air heat rejection to ambient air at 95/sup 0/F. The required solar collector temperature should be about 250/sup 0/F. Electric power pumping requirements should be modest since no fluid recirculation is involved, and since the novel finned-tube-in container heat exchanger has been designed for low pressure drop as well as high effectiveness. Furthermore, the salt pellet container/heat exchanger is quite compact, since the storage energy density is approximately 6000 Btu/ft/sup 3/. The complete cost of a 3-ton residential cooling system with sufficient storage for 100% solar operation is projected to be about $15,000, excluding only the collector. This cost includes provision for domestic hot water heating and winter space heating at a thermal coefficient of performance ca. 1.7.
- Research Organization:
- EIC Corp., Newton, MA (USA)
- Sponsoring Organization:
- USDOE Office of Conservation and Solar Applications
- DOE Contract Number:
- AC03-77CS34537
- OSTI ID:
- 6944664
- Report Number(s):
- DOE/CS/34537-T1
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SOLAR AIR CONDITIONERS
ADSORPTION
COST
DESIGN
BINDERS
CALCIUM CHLORIDES
CHEMICAL REACTIONS
COEFFICIENT OF PERFORMANCE
DEHYDRATION
HEAT EXCHANGERS
HYDRATION
PELLETS
THERMODYNAMICS
WATER
WATER VAPOR
AIR CONDITIONERS
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM HALIDES
CHLORIDES
CHLORINE COMPOUNDS
EQUIPMENT
FLUIDS
GASES
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
OXYGEN COMPOUNDS
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SOLVATION
SORPTION
VAPORS
140901* - Solar Thermal Utilization- Space Heating & Cooling