Journal Name:
- International Journal of Innovation and Applied Studies
Author Name | University of Author |
---|---|
Abstract (2. Language):
The process in a gas turbine plant involves certain losses which can be divided into internal and external losses. In
term of internal losses, the main factor is changing the state of working fluid. Since the temperature of atmospheric air may
vary within a wide range, its variations can influence strongly the efficiency of gas turbine plants. With growing ambient air
temperature, the specific volume of air increases, which can result in a larger work spent for air compression in the
compressor. One of the most effective method for increasing the efficiency of gas turbine plants is to raise the gas
temperature before the turbine. Since this temperature is the highest temperature in the cycle, this method is applicable for
gas turbine plants of any scheme and type. However, there are some limitations on increasing gas temperature. The
allowable temperature for reliable operation is between 1000 and 1400 k. However, decreasing ambient air temperature to
increase the efficiency of gas turbine plants is easier and at low costs compared to rising gas temperature. As a decrease of
1°C temperature of inlet air increases the power output by 1%. In this paper our objective is improving the efficiency of gas
turbine plants by decreasing ambient air temperature. To reach this we use a heat exchanger with different strip fins. The
temperature of chilled water is constant on 7C°, but the ambient air temperature is variable between 20 and 36 C°. After
designing process some graphs are presented, which give required mass flow rate to reach slightly ambient air temperature.
Bookmark/Search this post with
FULL TEXT (PDF):
- 4
533-539