In a counter-flow heat exchanger with an effectiveness of 0.75, the properties and flow rate are such that both fluids have a thermal capacity equal to 1000 W/°C. What will be the area of heat exchanger required, if the overall heat transfer coefficient is 100 W/m2°C?
1
40 m2
2
30 m2
3
20 m2
4
None of the above