Technology of a freon and steam reciprocating engine for low temperature solar thermal powered water pump

Conference · Thu Dec 01 00:00:00 EST 1983 · Alternative Energy Sources; (United States)

OSTI ID:6563076

Sharma, M P

This paper comprises a comparative study between a Freon-11 and steam reciprocating engine for low temperature solar thermal powered water pump. Theoretical aspects like thermal efficiency, cycle work and feed pump work have been compared using Freon-11 and steam as working fluid assuming a generator temperature of 80/sup 0/C at two different condenser temperatures (30/sup 0/ and 40/sup 0/C). The ratio of the required sizes of the reciprocating engine and feed pumps for the same power generation, using Freon and water as working fluids are also compared. It is found that in the case of engines, this ratio is 2.4 and 2.1 at a condenser temperature of 30/sup 0/C and 40/sup 0/C respectively, while in the case of the feed pump, this ratio is 10.7 and 0.1 at a condenser temperature of 30/sup 0/ and 40/sup 0/C, respectively. Various technical problems which are encountered in these engines, such as sealing and maintaining vacuum are also covered. The various types of dynamic seals and their possible uses for steam and freon reciprocating engines are elaborated. Alternate possible solutions for sealing problems of a Freon-11 reciprocating engine have also been covered. Design and development of a sealing system for a specific freon engine is mentioned. This engine is directly coupled to a water pump. Even after technical viability of such low temperature solar thermal powered systems for water pumping, these systems do not seem to be very attractive as their economic viability is very far away.

• Research Organization: Central Salt and Marine Chemicals Research Institute Bhavnagar
• OSTI ID: 6563076
• Report Number(s): CONF-831205-
• Journal Information: Alternative Energy Sources; (United States), Conference: 6. Miami international conference on alternative energy sources, Miami Beach, FL, USA, 12 Dec 1983
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
SOLAR HEAT ENGINES
COMPARATIVE EVALUATIONS
SOLAR WATER PUMPS
THERMAL EFFICIENCY
COST BENEFIT ANALYSIS
FREONS
SEALS
SIZE
STEAM
STEAM CONDENSERS
WORKING FLUIDS
CONDENSERS
EFFICIENCY
ENGINES
EQUIPMENT
FLUIDS
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT ENGINES
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PUMPS
SOLAR EQUIPMENT
VAPOR CONDENSERS
WATER PUMPS
140909* - Solar Thermal Utilization- Miscellaneous Solar Applications- (1980-)