Exergy analysis of solar rankine power cycles used for cooling

Conference · Wed Jun 01 04:00:00 EDT 1983 · Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States)

OSTI ID:6406393

Lior, N; Brady, W J; Subbiah, S

Second law (exergy) analysis was performed on two types of solar cooling systems which are based on a vapor compression cycle driven by a Rankine cycle: those energized by the sun at one temperature and using organic fluids in the power cycle, and a hybrid cycle which is energized by a solar source at low temperatures and by a fossil source at higher temperatures and which uses steam as the fluid. A better thermodynamic match is obtained between the energy sources and sinks in the hybrid cycle, which results in a doubling of the cycle's efficiency as compared to the single-temperature organic fluid cycle. Nevertheless, there still exists a large difference between the temperatures of combustion (1500/sup 0/C) and superheated steam ( about 600/sup 0/C), and thus the superheater's effectiveness is relatively low. This points to several methods of improvement.

• Research Organization: Department of Mechanical Engineering and Applied Mechanics, University of Pennsylvania, Philadelphia, Pennsylvania
• OSTI ID: 6406393
• Report Number(s): CONF-830622-
• Conference Information: Journal Name: Proc. Annu. Meet. - Am. Sect. Int. Sol. Energy Soc.; (United States) Journal Volume: 6
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140901* -- Solar Thermal Utilization-- Space Heating & Cooling
EFFICIENCY
ENERGY
EQUIPMENT
EXERGY
HEAT EXCHANGERS
PERFORMANCE
RANKINE CYCLE
SOLAR COOLING SYSTEMS
SOLAR EQUIPMENT
SUPERHEATERS
THERMAL ANALYSIS
THERMAL EFFICIENCY
THERMODYNAMIC CYCLES