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a. Total required amount of air in kg / hr. under entrance condition b. Capacity of forced draft fan to handle this air in m3 / min.

a. Total required amount of air in kg / hr. under entrance condition b. Capacity of forced draft fan to handle this air in m3 / min.

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
Problem 1.1MA
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11 of 13 The temp. of the air in a dryer is maintained constant by the use of steam coils w/in the dryer. the product enters the dryer at the rate of one metric ton per hour. The initial moisture content is 3 kg moisture per kg of dry solid. Air entors the dryer w/ humidity ratio of 0.016 kg moisture per kg. of dry air & leaves w/ a relative humidity of 100 % while the temp. remains constant at 600C. If the total pressure of air is 101.3 kPa. dotermine: a. Total required amount of air in kg / hr. under entrance condition b. Capacity of forced draft fan to handle this air in m3 / min. NOTE: at pt.3: @600C. Psat 19.94 KPa & Pv = Psat. HR2 = 0.016 kg w.v. / kg d.a. V2 = 0.9675 m3 /kg HR3 = 0.1524 kg w.v. / kg d.a. O a. 5,200 kg/ hr b. 87.50 m3 / min O a. 4.315.25 kg / hr b. 95 m3 / min O a. 5,315.25 kg/ hr b. 88.70 m3 / min a. 5,315. 25 kg /hr b. 85.708 m3 / min.
Transcribed Image Text:11 of 13 The temp. of the air in a dryer is maintained constant by the use of steam coils w/in the dryer. the product enters the dryer at the rate of one metric ton per hour. The initial moisture content is 3 kg moisture per kg of dry solid. Air entors the dryer w/ humidity ratio of 0.016 kg moisture per kg. of dry air & leaves w/ a relative humidity of 100 % while the temp. remains constant at 600C. If the total pressure of air is 101.3 kPa. dotermine: a. Total required amount of air in kg / hr. under entrance condition b. Capacity of forced draft fan to handle this air in m3 / min. NOTE: at pt.3: @600C. Psat 19.94 KPa & Pv = Psat. HR2 = 0.016 kg w.v. / kg d.a. V2 = 0.9675 m3 /kg HR3 = 0.1524 kg w.v. / kg d.a. O a. 5,200 kg/ hr b. 87.50 m3 / min O a. 4.315.25 kg / hr b. 95 m3 / min O a. 5,315.25 kg/ hr b. 88.70 m3 / min a. 5,315. 25 kg /hr b. 85.708 m3 / min.
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