The Research Team, constituted of Prof. Dr. Hasan Shakir Majdi, Dean of Al-Mustaqbal University College, Prof. Dr. Qusay Rasheed Abdul Ameer, and Assist Prof. Dr. Azher M. Abid, Head of Air-Conditioning & Refrigeration Engineering Department, has managed to achieve a Patent on a New Air Cooling System with a Capacity of 2 Kilowatts, which operates on the Energy retrieved from the Exhaust Gases of a Diesel Engine.
The main objective of this project is to design an Air Conditioning System for a Vehicle equipped with an Electric Compressor, 2 Kilowatts Capacity, operated by Waste Energy retrieved from Exhaust Gases. In other words, Thermal and Kinetic Energy of the Exhaust Gases shall be converted into electricity by connecting the Exhaust Engine to a Gas Turbine, and thus generating Torque that can be transmitted to the Dynamo, which in turn, generates a Continuous Electric Current.
As a matter of fact, this design is based on the idea of using the energy generated by Exhaust Gas to rotate the Turbine Blades that lead the Dynamo to generate Electrical Energy. We should note, however, that the Experimental Proposal has been implemented on Kia Carnival Four-Cylinder Diesel Engine. The Engine has been examined at variable speeds ranging from (960-2800) rpm through the use of a Simulation Software, Diesel-RK. It has been noticed that as the Engine Speed increases, the Brake Thermal Efficiency (BTE) decreases by 9.67%, whereas the Specific Brake Consumption increases by 10.7% at the Engine Speed of 1600 rpm.
On one hand, results have shown that the Engine Efficiency has been improved through an apparent decrease in several variables such as Fuel Consumption Rate, Exhaust Gas Temperature, and the amount of heat emitted from the Engine by about 4.4%, 10.1%, and 18%, respectively. On the other hand, the Performance Coefficient of the Proposed Cooling System has increased by 3.7%. Thus, we may determine that we have been capable for developing a Solution to Energy Waste Problems of the Air Conditioning System in a Vehicle using Vapor Compression Cycle.