(Solved): solve Calculate the rate of cooling needed (in kW) to condense a 4.2kg/s stream of steam at 200 de ...

Calculate the rate of cooling needed (in kW) to condense a $$4.2\mathrm{kg}/\mathrm{s}$$ stream of steam at 200 deg Celsius to water at that temperature. The specific enthalpy of vapourisation at that temperature is $$1939\mathrm{kJ}/\mathrm{kg}$$. Answer: Calculate the rate of cooling needed (in $$\mathrm{MJ}/\mathrm{h}$$ ) to reduce the temperature of a 250 deg Celsius stream of water, flowing at $$6.7\mathrm{kg}/\mathrm{s}$$, to $$150\mathrm{deg}$$ Celsius. The heat capacity of water in that temperature range is $$4.5\mathrm{kJ}/\mathrm{kg}.\mathrm{K}$$. Answer: