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A shell-and-tube heat exchanger uses hot oil at 100-C to heat air. The oil makes six tube passes and the air makes one shell pass. It requires 120 kg/min of air are to be heated from 20 to 80-C. The specific heat of the oil is 2.10 kJ/kg-C, and its flow rate is 180 kg/min. Calculate the effectiveness in %. A) 75 B) 85 C) 95 D) 65

A shell-and-tube heat exchanger uses hot oil at 100-C to heat air. The oil makes six tube passes and the air makes one shell pass. It requires 120 kg/min of air are to be heated from 20 to 80-C. The specific heat of the oil is 2.10 kJ/kg-C, and its flow rate is 180 kg/min. Calculate the effectiveness in %. A) 75 B) 85 C) 95 D) 65

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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A shell-and-tube heat exchanger uses hot oil at 100-C to heat air. The oil makes six tube passes and the air makes one shell pass. It requires 120 kg/min of air are to be heated from 20 to 80-C. The specific heat of the oil is 2.10 kJ/kg.-C, and its flow rate is 180 kg/min. Calculate the effectiveness in %. A 75 B) 85 C) 95 D) 65
Transcribed Image Text:A shell-and-tube heat exchanger uses hot oil at 100-C to heat air. The oil makes six tube passes and the air makes one shell pass. It requires 120 kg/min of air are to be heated from 20 to 80-C. The specific heat of the oil is 2.10 kJ/kg.-C, and its flow rate is 180 kg/min. Calculate the effectiveness in %. A 75 B) 85 C) 95 D) 65
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