چكيده به لاتين
In recent decades, due to the worrying rise in the erth temperature, air pollution and the rising trend in fossil fuel prices, researchers have been paying attention to renewable energy sources, such as heat energy lost from engine exhaust gases. In this thesis, the use of the water-lithium bromide absorption cycle in the air conditioning system of the automobile for the purpose of using the heat in the exhaust of the SI engine is examined from the perspective of the first and second law of thermodynamics for different loads, because the first law thermodynamics deals with the quantity of energy and the principle of energy conservation, and also from perspective of the second law, a quantity of energy is of a quality which means the degree of usefulness.
In this thesis, the cabin cooling load and engine combustion are simulated by Matlab and the vapor compression cycles and the absorption cycle (single effect, double effect parallel and seri) are modeled by EES.
According to the results, the use of the absorption cycle increased the efficiency of the first and second law and reduced the brake specific fuel consumption. Also, the results showed that the single-effect cycle, the double- effects series and parallel were not applicable in the loads lower than 28%, 19% and 17%, respectively.
Key Words: first law, second law, energy, exergy, absorption cycle, single effect, double effect
