M
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Hi.. I'm kinda confused with this one... i hope someone helps me here !
A dryer operates for 60 hours/week, 50 weeks/year. It exhausts 200 kW/hr of heat and the value of energy is 6p/kWh. A heat exchanger with a 50% efficiency is put into the exhaust stream to recover a proportion of this heat. The installed cost of the heat exchanger is £22,500. The heat exchanger pressure drop needs a 2 kW fan to overcome it, and the cost of electricity is 10p/kWh.
(I have the final answer - but no luck getting it !! - 10 points to the one who gets it right with good enough explanation for me to understand
Thanks !
A dryer operates for 60 hours/week, 50 weeks/year. It exhausts 200 kW/hr of heat and the value of energy is 6p/kWh. A heat exchanger with a 50% efficiency is put into the exhaust stream to recover a proportion of this heat. The installed cost of the heat exchanger is £22,500. The heat exchanger pressure drop needs a 2 kW fan to overcome it, and the cost of electricity is 10p/kWh.
(I have the final answer - but no luck getting it !! - 10 points to the one who gets it right with good enough explanation for me to understand
Thanks !