Abstract
AbstractThe processes of cooling air at the inlet of energy installations by exhaust heat conversion chillers with heat removal from them by cooling towers of the circulating cooling system are studied for the gas turbine. Air cooling is conducted by using combined type exhaust heat conversion chillers, which utilize the exhaust gas heat of gas turbine and which include absorption lithium-bromide and refrigerant ejector chillers as stages to convert waste heat into cold. The data on current thermal loads on air coolers and cooling towers under actual climatic conditions of their operation with a different distribution of thermal loads between the cooling towers were obtained on the base of the results of modeling the operation of the gas turbine cooling complex during the year. It was shown the possibility to increase the fuel-saving due to turbine inlet air cooling. A novel approach to analyzing the efficiency of using the installed thermal capacity of the cooling towers has been proposed which can be applied both to choose the rational distribution of thermal capacity depending on the change in actual thermal load and to determine the ranges of thermal loads for effective application (of various methods of controlling the operation) of cooling towers.KeywordsTurbineInlet air coolerCombined chillerThermal load distributionClimatic condition
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