6. CONCLUSIONS From the results and discussions, it has been concluded that, for providing cabin cooling for truck using engine exhaust, the vapour absorption systems can be used i.e. ammonia/water vapour absorption cycle. The COP of ammonia/water system varies from 0.3528 to 0.3113. The heat load on the generator can be met very easily by using the engine exhaust for both the systems as available energy rejected by cooling system of truck engine is more than sufficient. Even with a minimum assumed COP of 0.2, the required input to generator is 17.5 kW, while waste heat available is 34 kW. Hence from the discussion, ammonia/ water vapour absorption system is suggested for the application. Though the COP of the system is less but since waste heat is given as input, it is not a matter of concern.