Performance improvement of Gas Turbine using an Earth Air Heat Exchanger

Abstract

The use of earth air heat exchangers doesn’t limit only in cooling of buildings also can be used to improvement of efficiency of gas turbine to get the high performance. One-dimensional model was developed for predicting the thermal performance of EAHE, also gas turbine efficiency assessed with application of EAHE. MATLAB program is developed for solving an analytic model based on the energy balance principal. A validation study was devoted between our proposed model and experimental results. It shows that the mean error was 3.58% also the ambient temperature in outlet of EAHE decreases from 44°C to 27.4°C so that resulting to improve the efficiency of gas turbine from 33.6% to 34.34%.