I have a combustion process, and have calculated the net enthalpy of my inlets and outlets. Some of the energy released by the combustion is used to heat a cooling stream, maintained at temperature 46degC. I wish to calculate the power required to maintain this cooling stream temperature: I was thinking of integrating the specific heat capacity of the water, with respect to temperature, and multiplying by the mass flowrate of the cooling stream. Would this give the power required to maintain the coolant stream at 46degC or am I incorrect? If so how can I calculate this power value. Thanks.