Required information Consider the flow of engine oll (cp=2048J/kgK) through a thin-walled copper tube at a rate of 0.3kg/s. The engine oll that enters the copper tube at an inlet temperature of 80C is to be cooled by cold water (cp=4180 J/kgK ) flowing at a temperature of 20C. It is desired to have an exit temperature of the engine oil not greater than 54C. The individual convective heat transfer coefficients on oil and water sides are 750W/m2K and 350W/m2K, respectively. A thermocouple probe installed on the downstream side of the cooling water measures a temperature of 39C for a double-pipe parallel-flow heat exchanger. J/kgK ) flowing at a temperature of 20C. It is desired to have an exit temperature of the engine oll 54C. The individual convective heat transfer coefficients on oil and water sides are 750W/m2K a respectively. A thermocouple probe Installed on the downstream side of the cooling water measur temperature of 39C for a double-pipe parallel-flow heat exchanger. Determine the mass flow rate of cooling water. (Round the answer to two decimal places.) The mass flow rate of cooling water is kg/s. J/kgK ) flowing at a temperature of 20C. It is desired to have an exit temperature of the engine oil not great 54C. The individual convective heat transfer coefficients on oil and water sides are 750W/m2K and 350W respectively. A thermocouple probe installed on the downstream side of the cooling water measures a temperature of 39C for a double-pipe parallel-flow heat exchanger. Determine the log mean temperature difference. (Round the answer to a single decimal place) The log mean temperature difference is C J/kgK ) flowing at a temperature of 20C. It is desired to have an exit temperature of the engine oil not greater than 54C. The individual convective heat transfer coefficients on oll and water sides are 750W/m2K and 350W/m2K, respectively. A thermocouple probe installed on the downstream side of the cooling water measures a temperature of 39C for a double-pipe parallel-flow heat exchanger. Calculate the area of heat exchanger, if the log mean temperature difference is 32.5C. (Round the answer to two decimal places) The surface area of the heat exchanger is m2