Volume of the tank capacity of 1500 kg is used for the cooling process. The product temperature in the tank is 85 oC and will be cooled by cooling water which is passed through the tank jacket with the final product temperature being 45 oC (cooling water flow 15 M3/hour). If the volume capacity of the cooling water in the jacketing tank is 400 liters, determine: 1. Energy needed to cool the product from 85 oC to 45 oC? 2. How long does it take to cool the product from 85 oC to 45 oC?

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.