Thermodynamic analysis of solar energy utilization combined with the exploitation of the LNG physical energy

Journal Article · Wed Nov 01 04:00:00 EST 1995 · Journal of Solar Energy Engineering

DOI:https://doi.org/10.1115/1.2847874· OSTI ID:194238

Bisio, G; Pisoni, C ^[1]

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1. Univ. of Genoa (Italy). Energy Engineering Dept.

The consumption of LNG (liquid natural gas) is growing and will probably increase rapidly in the near future. Consequently, (in addition to the use of the chemical exergy) the exploitation of the physical energy of LNG, due to its state in liquid phase at a temperature under that of the environment, is becoming more important. Nowadays most of LNG is regassified using the thermal energy of sea water or of warm sea water effluent from a power plant, destroying in this way its physical exergy. Several processes have been considered to utilize the physical exergy of fluids in liquid phase by vaporizing these fluids at atmospheric pressure and cryogenic temperatures. Two general alternatives may be envisaged: (a) direct utilization in cryogenic facilities (cold storage or other process uses); (b) indirect utilization in the generation of electric power. Griepentrog and Weber and others proposed a closed-cycle gas turbine with several kinds of heat sources and with liquid natural gas or hydrogen as the heat sink. In this paper a combined system utilizing a gas turbine with solar heating and LNG refrigerating is examined.

• Sponsoring Organization: USDOE
• OSTI ID: 194238
• Journal Information: Journal of Solar Energy Engineering, Journal Name: Journal of Solar Energy Engineering Journal Issue: 4 Vol. 117; ISSN JSEEDO; ISSN 0199-6231
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
14 SOLAR ENERGY
BRAYTON CYCLE POWER SYSTEMS
CLOSED-CYCLE SYSTEMS
DESIGN
HYBRID SYSTEMS
LIQUEFIED NATURAL GAS
SOLAR HEATING