Instrumentation to Measure the Heat Transfer Coefficients in an Automobile Radiator

The present investigation aims in development of an instrumentation to measure the heat transfer coefficients in an automobile radiator. The effectiveness of the radiator depends on the performance of the same at various load conditions. To evaluate the performance experimentally, an effective instrumentation has to be built to exactly predict the values of the temperature during the service condition as close to reality as possible. The various components of the set up include thermostats, heater, thermocouples, digital temperature indicators with zero compensation, flow meter, flow pump, axial fan etc. All the entities of the instrumentation were sequenced in such a way that they perform their function when required. The proposed set up was capable of predicting the values of the temperature up to two degree accuracy. The results obtained from the present investigation were in good agreement with those reported in the literature.