CHARACTERISTICS OF POWER UNIT USING LNG REGASIFICATION COLD AND EXHAUST GASES HEAT GTU

Abstract

Liquefaction of natural gas (LNG) is widely used in many countries of the world as a highly effective energy source. With its regasification a high cryogenic potential for production cold or work can be utilized. The possibility of LNG regasification with the production of useful work was demonstrated. A scheme for the power plant in which the Rankine cycle is realized was considered. In a series of upper heat source are exhaust gases gas turbine unit (GTU). It is shown that by using LNG cold significantly increases the efficiency the power plant. As the working media in the Rankine cycle the binary mixtures are used based of methane, ethane, propane and butane. The influence of working medium on the efficiency of the power plant  at different temperatures of the lower source is investigated. The efficiency of energy utilization at the cold of LNG and heat exhaust gas of GTU is more than 60 %.