A computer room located on the second floor of a five-story office building is 10m by 7 m. The exterior wall is 3.5 m high and 10 m long; it is a metal curtain wall (steel backed with 10 mm of insulating board), 75 mm of glass-fiber insulation, and 16 mm of gypsum board. Single-glazed windows make up 30 percent of the exterior wall. The computer and lights in the room operate 24 h/d and have a combined heat release to the space of 2 kw. The indoor temperature is 20 C. (a) If the building is located in Columbus, Ohio, determine the heating load at winter design conditions. (b) What would be the load if the windows were double-glazed?
A computer room located on the second floor of a five-story office building is 10m by 7 m. The exterior wall is 3.5 m high and 10 m long; it is a metal curtain wall (steel backed with 10 mm of insulating board), 75 mm of glass-fiber insulation, and 16 mm of gypsum board. Single-glazed windows make up 30 percent of the exterior wall. The computer and lights in the room operate 24 h/d and have a combined heat release to the space of 2 kw. The indoor temperature is 20 C. (a) If the building is located in Columbus, Ohio, determine the heating load at winter design conditions. (b) What would be the load if the windows were double-glazed?
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.26P
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![A computer room located on the second floor of a five-story office building is 10m by 7 m.
The exterior wall is 3.5 m high and 10 m long; it is a metal curtain wall (steel backed with 10 mm of
insulating board), 75 mm of glass-fiber insulation, and 16 mm of gypsum board. Single-glazed windows
make up 30 percent of the exterior wall. The computer and lights in the room operate 24 h/d and have
a combined heat release to the space of 2 kw. The indoor temperature is 20 C.
(a) If the building is located in Columbus, Ohio, determine the heating load at winter design conditions.
(b) What would be the load if the windows were double-glazed?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff7a5685d-5d30-4ec9-af3d-b0dda10212e0%2Fe230d598-1398-4fed-91ca-7bca3597f1f4%2Fankrkto_processed.png&w=3840&q=75)
Transcribed Image Text:A computer room located on the second floor of a five-story office building is 10m by 7 m.
The exterior wall is 3.5 m high and 10 m long; it is a metal curtain wall (steel backed with 10 mm of
insulating board), 75 mm of glass-fiber insulation, and 16 mm of gypsum board. Single-glazed windows
make up 30 percent of the exterior wall. The computer and lights in the room operate 24 h/d and have
a combined heat release to the space of 2 kw. The indoor temperature is 20 C.
(a) If the building is located in Columbus, Ohio, determine the heating load at winter design conditions.
(b) What would be the load if the windows were double-glazed?
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