Question

A furnace shell has to be cooled from 90 degree celcius to 55 degree celcius. The mass of the furnace shell is 2 tonnes, the specific heat of furnace shell is 0.2 kcal/(kg degree celcius). Water is available at 29 degree celcius. The maximum allowed increase in water temperature is 5 degree celcius. Calculate the quality of wateer required to cool the furnace. Neglectthe heat loss

Answer 1

Answer:

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Explanation:

A furnace shell has to be cooled from 90oC to 55oC. The mass rate of the furnace shell to be cooled is 2 tonnes/day; the specific heat of furnace shell is 0.2 kCal/(kg·oC). Water is available at 28oC. The maximum allowed increase in water temperature is 5oC. Calculate the cooling water flow rate (m3/day) required to cool the furnace. Neglect heat loss. (Answer: 2.8 m3/day (≈ 2,800 kg/day))