A single-shell, four-tube-pass heat exchanger is used to cool water flowing at 14 kg.s¹ entering at 18°C using ammonia with a mass flow rate of 18 kg.s¹ and an entry temperature and pressure of -12°C and 650 kPa, absolute, respectively. The heat exchanger is to use the ammonia in the liquid form, so no evaporation can be allowed. At 620 kPa, absolute pressure, ammonia evaporates at 10.5°C. The overall heat transfer coefficient of the heat exchanger is 568 W.m2 and the heat transfer surface area is 75 m². Determine the outlet temperatures of the hot and cold streams. Identify whether the heat exchanger, operating under the conditions shown, satisfies the requirement that the ammonia remains liquid throughout the process. Sources for any researched material properties must be properly referenced

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A single-shell, four-tube-pass heat exchanger is used to cool water flowing at 14 kg.s¹
entering at 18°C using ammonia with a mass flow rate of 18 kg.s¹ and an entry
temperature and pressure of -12°C and 650 kPa, absolute, respectively. The heat
exchanger is to use the ammonia in the liquid form, so no evaporation can be
allowed. At 620 kPa, absolute pressure, ammonia evaporates at 10.5°C. The overall
heat transfer coefficient of the heat exchanger is 568 W.m2 and the heat transfer
surface area is 75 m². Determine the outlet temperatures of the hot and cold
streams. Identify whether the heat exchanger, operating under the conditions
shown, satisfies the rec irement that the ammonia remains liquid throughout the
process.
Sources for any researched material properties must be properly referenced
Transcribed Image Text:A single-shell, four-tube-pass heat exchanger is used to cool water flowing at 14 kg.s¹ entering at 18°C using ammonia with a mass flow rate of 18 kg.s¹ and an entry temperature and pressure of -12°C and 650 kPa, absolute, respectively. The heat exchanger is to use the ammonia in the liquid form, so no evaporation can be allowed. At 620 kPa, absolute pressure, ammonia evaporates at 10.5°C. The overall heat transfer coefficient of the heat exchanger is 568 W.m2 and the heat transfer surface area is 75 m². Determine the outlet temperatures of the hot and cold streams. Identify whether the heat exchanger, operating under the conditions shown, satisfies the rec irement that the ammonia remains liquid throughout the process. Sources for any researched material properties must be properly referenced
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