Required information Consider operation of a single-pass cross-flow heat exchanger with water (cp=4193 J/kg-K) (mixed) and methanol (cp=2577 J/kg-K) (unmixed). Water entering and exiting the heat exchanger at 93°C and 60°C, respectively, is used to heat the methanol initially at 10°C. The overall heat transfer coefficient and the total heat transfer rate is estimated to be 650 W/m2.K and 250 kW, respectively. An effectiveness of at least 0.5 is to be achieved.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Consider operation of a single-pass cross-flow heat exchanger with water
(cp=4193 J/kg-K) (mixed) and methanol (cp=2577 J/kg-K) (unmixed).
Water entering and exiting the heat exchanger at 93°C and 60°C,
respectively, is used to heat the methanol initially at 10°C. The overall heat
transfer coefficient and the total heat transfer rate is estimated to be 650
W/m².K and 250 kW, respectively. An effectiveness of at least 0.5 is to be
achieved.
Calculate the mass flow rate of water. (Round the answer to two decimal places.)
The mass flow rate of water is
kg/s.
Transcribed Image Text:! Required information Consider operation of a single-pass cross-flow heat exchanger with water (cp=4193 J/kg-K) (mixed) and methanol (cp=2577 J/kg-K) (unmixed). Water entering and exiting the heat exchanger at 93°C and 60°C, respectively, is used to heat the methanol initially at 10°C. The overall heat transfer coefficient and the total heat transfer rate is estimated to be 650 W/m².K and 250 kW, respectively. An effectiveness of at least 0.5 is to be achieved. Calculate the mass flow rate of water. (Round the answer to two decimal places.) The mass flow rate of water is kg/s.
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