In a solar hot water heater, oil is used Using the "effectiveness - NTU" function in...

In a solar hot water heater, oil is used Using the "effectiveness - NTU" function in the EES Heat Transfer options, calculate the length of pipe and the exit temperature of the water for the following heat exchanger configurations: counter-flow, parallalel-flow, and a 2-pass shell and tube HX. Use the operating conditions listed below to rank the 3 HX configurations based on effectiveness.

Fluids (water: Cp=4.189 kJ/kg-K, oil: Cp=1.75 kJ/kg-K)
mass flow rate (water: 0.5 kg/s, oil: 0.1 kg/s)
pipe diameter = 1 inch
overall heat transfer coefficient = 75 W/m²-K
Ti_water=25 C Ti_oil=120 C To_oil=75 C

Provide a schematic for each of these HX configurations

Expert Solution

samet mamat answered 2 years ago

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