clear answer In a biomass processing plant, an engineer plans to use a cross-flow heat exchanger to recover heat form hot air to pre-heat water as in Figure 5a. The total surface area is about 10 m² while its overall heat transfer coefficient is 0.2116 W/m².°C The hot air flows into the heat exchanger at a temperature of 100°C, 0.92 kg/s to pre-heat water which enters at 30°C with a flow rate of 0.42 kg/s. If the specific heats of hot air and water can be taken as Cp,air= 1.01 kJ/kg°C and Cp,water = 4.18 kJ/kg°C respectively, determine: i) ii) iii) iv) the effectiveness of the heat exchanger; the heat exchange rate between hot air and water; the outlet temperatures of bot hot air and water; and state two (2) parameters that you adjust to increase the heat transfer rate without changing the heat exchanger's design. Air flow (unmixed) O Water flow (unmixed)

clear answer In a biomass processing plant, an engineer plans to use a cross-flow heat exchanger to recover heat form hot air to pre-heat water as in Figure 5a. The total surface area is about 10 m² while its overall heat transfer coefficient is 0.2116 W/m².°C The hot air flows into the heat exchanger at a temperature of 100°C, 0.92 kg/s to pre-heat water which enters at 30°C with a flow rate of 0.42 kg/s. If the specific heats of hot air and water can be taken as Cp,air= 1.01 kJ/kg°C and Cp,water = 4.18 kJ/kg°C respectively, determine: i) ii) iii) iv) the effectiveness of the heat exchanger; the heat exchange rate between hot air and water; the outlet temperatures of bot hot air and water; and state two (2) parameters that you adjust to increase the heat transfer rate without changing the heat exchanger's design. Air flow (unmixed) O Water flow (unmixed)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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