A single-pass cross-flow heat exchanger is used to cool jacket water (cp = 1.0 Btu/lbm·°F) of a diesel engine from 190°F to 140°F, using air (cp = 0.245 Btu/lbm·°F) with inlet temperature of 90°F. Both air flow and water flow are unmixed. If the water and air mass flow rates are 92,000 lbm/h and 400,000 lbm/h, respectively, determine the log mean temperature difference for this heat exchanger.
Heat Exchangers
Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.
Heat Exchanger
The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.
A single-pass cross-flow heat exchanger is used to
cool jacket water (cp = 1.0 Btu/lbm·°F) of a diesel engine
from 190°F to 140°F, using air (cp = 0.245 Btu/lbm·°F) with
inlet temperature of 90°F. Both air flow and water flow are
unmixed. If the water and air mass flow rates are 92,000
lbm/h and 400,000 lbm/h, respectively, determine the log
mean temperature difference for this heat exchanger.
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