Power generation from LNG vaporization. Technical memo

Technical Report · Wed Jan 01 04:00:00 EST 1975

OSTI ID:6237437

Rennert, P

A method of generating electrical power to take full advantage of the energy released in the vaporization of LNG is described. The process is one of many which might be used to recover energy from the cryogenic LNG-oil slurry pipeline. The process of cooling and liquefying natural gas consumes large amounts of energy which is, in a sense, stored in the coldness of LNG. During the process of revaporizing the LNG and bringing it back to room temperature, one can recover some of this energy in the form of electrical power. The basic idea is the Rankine vapor power cycle. The working fluid in this cycle is in general not natural gas, but a refrigerant gas chosen for its particular thermodynamic properties. The inflowing natural gas is used only as a low temperature reservoir. The condensor is a heat exchanger, operating on the natural gas and the working fluid. The fluid, after passing through the pump, enters as high-pressure liquid, takes in heat from the air, and becomes hot, high-pressure gas. The fluid is then allowed to expand back to its original state through the turbine, producing power. The net result has been to remove some heat from the air, add some heat to the natural gas, and produce some power.

• Research Organization: System Sciences, Inc., Bethesda, MD (USA)
• OSTI ID: 6237437
• Report Number(s): PB-287547
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000 -- Natural Gas-- Transport
Handling
& Storage
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320304* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Waste Heat Recovery & Utilization
ELECTRIC POWER
ENERGY RECOVERY
ENERGY SOURCES
EVAPORATION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
LIQUEFIED NATURAL GAS
NATURAL GAS
PHASE TRANSFORMATIONS
POWER
POWER GENERATION
RANKINE CYCLE
RECOVERY
THERMODYNAMIC CYCLES