Aheating system supplies 20 gpm of hot water at 200°f to a base board fin-tube radiation for a heating load of 92.000 btu/hr. what is the exit temperature of the hot water?

The exit temperature of hot water =200.005°F

Explanation:

Given that

Volume flow rate of water = 20 gpm ⇒

Volume flow rate of water =

inlet temperature of water = 200°F

Heating load = 92.000 Btu/hr ⇒ Heating load= 0.0269 KW

We know that mass flow rate is given as

So mass flow rate of water = 1000 x 0.00126 Kg/s

 mass flow rate of water= 1.26 Kg/s

Now by balancing heat

Heating load =

=200.005°F

So the exit temperature of hot water =200.005°F

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