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Compute the total heat gain load from all the sources into the lunchroom, if the lunchroom is located at the top floor of an air conditioned commercial building. The lunchroom has one exposed wall facing SE. -Wall facing SE, (20* 15); 12 brick, the overall heat transmission value(U) is 0.3 Btu/hr.ft. F. -Roof;6" concrete with 2" insulation, Uroof 0.4 Btu/hr.ft².F - Windows facing SE ;No .(3), (3 *3 ),single regular plate,double-hung metal windows,weather-stripped; unlocked ,shaded with white inside roller shade ,half drawn. -Occupants: (10) persons; sedentary work., -Lightening :2 Watt /ft of the floor area (40' *20) -Outside conditions : T= 100 F (db) & T70(wb), DR =25 F, Vwind -10 mph. -Inside conditions : T-70 F (db) & 0-40%. -Location: 40 N.L, Time = 11 A.M.

Compute the total heat gain load from all the sources into the lunchroom, if the lunchroom is located at the top floor of an air conditioned commercial building. The lunchroom has one exposed wall facing SE. -Wall facing SE, (20* 15); 12 brick, the overall heat transmission value(U) is 0.3 Btu/hr.ft. F. -Roof;6" concrete with 2" insulation, Uroof 0.4 Btu/hr.ft².F - Windows facing SE ;No .(3), (3 *3 ),single regular plate,double-hung metal windows,weather-stripped; unlocked ,shaded with white inside roller shade ,half drawn. -Occupants: (10) persons; sedentary work., -Lightening :2 Watt /ft of the floor area (40' *20) -Outside conditions : T= 100 F (db) & T70(wb), DR =25 F, Vwind -10 mph. -Inside conditions : T-70 F (db) & 0-40%. -Location: 40 N.L, Time = 11 A.M.

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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QL.Compute the total heat gain load from all the sources into the lunchroom ,if the lunchroom is located at the top floor of an air conditioned commercial building. The lunchroom has one exposed wall facing SE. -Wall facing SE, (20 * 15); 12 brick, the overall heat transmission value(U) is 0.3 Btu/hr.ft². F. -Roof; 6 concrete with 2" insulation, Uroof 0.4 Btu/hr.ft².F - Windows facing SE ;No.(3), (3 *3),single regular plate,double-hung metal windows,weather-stripped; unlocked ,shaded with white inside roller shade,half drawn. -Occupants: (10) persons; sedentary work. -Lightening :2 Watt /ft² of the floor area (40' *20) -Outside conditions: T= 100 F (db) & T70(wb), DR =25 F, Vwind -10 mph. -Inside conditions: T-70 F (db) & Q=40%. -Location: 40 N.L, Time = 11 A.M.
Transcribed Image Text:QL.Compute the total heat gain load from all the sources into the lunchroom ,if the lunchroom is located at the top floor of an air conditioned commercial building. The lunchroom has one exposed wall facing SE. -Wall facing SE, (20 * 15); 12 brick, the overall heat transmission value(U) is 0.3 Btu/hr.ft². F. -Roof; 6 concrete with 2" insulation, Uroof 0.4 Btu/hr.ft².F - Windows facing SE ;No.(3), (3 *3),single regular plate,double-hung metal windows,weather-stripped; unlocked ,shaded with white inside roller shade,half drawn. -Occupants: (10) persons; sedentary work. -Lightening :2 Watt /ft² of the floor area (40' *20) -Outside conditions: T= 100 F (db) & T70(wb), DR =25 F, Vwind -10 mph. -Inside conditions: T-70 F (db) & Q=40%. -Location: 40 N.L, Time = 11 A.M.
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