Test Rig Development Of Automotive Radiator Performance On A Vehicle Engine Block

Md Isa , Ali and Mohd Yusoff , Sulaiman and Juhari, Ab. Razak (2006) Test Rig Development Of Automotive Radiator Performance On A Vehicle Engine Block. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

With ever increasing demand on the automotive engine, the radiator is becoming ever so important. Manufacturers compete to produce high heat-transfer performance, low pressure drop and light weight radiators manufactured to the highest specification. Copper has been the traditional metal used with aluminum becoming the most common nowadays. However alloys of copper-brass have been reintroduced. This study describes an experimental approach to analyse the performance of different automotive radiators under a certain conditions. To rely this, we have designed, fabricate, assemble and install a suitable Test Rig. A complete Proton Wira engine with the cooling system are installed on a purpose built support and the assembly arranged in a manner so that measurements can be taken for flow rates, temperatures and pressures at a fixed air flow rates. Various radiators of different construction materials, design, compactness and sizes are fitted with or without fans assisted airflow and the engine running at different revolutions/speed. It was found that Mitsubishi, s radiator was the best radiator that suits to Proton Wira engine based on the capability to dissipate heat due to several characteristics that contribute to the heat rejection. The heat dissipation increased as the temperature drop and coolant mass flow rate increased. The heat rejected is also found proportional to the engine speed and the heat loss rate will rise when the engine running at a higher speed.

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