Abstarct: Global increase in fuel prices on the one hand and the reduction of fossil fuel resources and increasing greenhouse gases in the world, on the other hand, was due to the developed world, which prevents other countries, various policies in order to reduce energy consumption and greenhouse gas emissions adopt. One of these policies in the developed world has increased dramatically in recent years use of combined heat and power production technology to reduce energy consumption and reduce greenhouse gas emissions in the world.. System performance may be that the use of a generator, producing electricity and differs from other systems is that instead of the hot exhaust gases from the mold without the use of environmentally. The main components of the CHP system consists of a heat exchanger is the main driver. Types of stimuli used in this system consists of a steam turbine, gas turbine, microturbine, fuel cell, reciprocating engines, Stirling engines are built. The reason for resorting to this system is that large power plants to generate electricity and deliver it to subscribers subscribers incur heavy casualties due to the long transmission lines If distributed generation systems to generate electricity on-site consumption minimizes transmission losses. Also, instead of distributed generation plants to generate energy from waste exhaust chimney for heating purposes for which it also reduces fuel costs. The system power output of 36 MW and a steam output of 60 kg/s works. The purpose of the review is to evaluate the system performance and improve the efficiency of the system output. Desired system's performance by ees to study the energy and thorough exergy analysis. The results showed an increase in turbine inlet fluid temperature increases above four performance. The change in the compressor pressure ratio of the cycle is different So that a thorough exergy efficiency of the compressor pressure ratio and the thermal efficiency of the cycle increases and by reducing the electrical efficiency and power efficiency of the system increases. Proportionality factor between these two cycles are required in the performance of the system so that how much heat is needed in the output power. After examining the factors affecting the performance of the cycle, with the addition of the absorption chiller to start the process of reducing the temperature of the air entering the compressor concluded that the lower the temperature to 10 degrees to the main system electrical efficiency of the system was increased by about 4 percent