Qn.2. Cooling load calculations The floor plan of a mid-floor classroom in a multi-floor university building located at 40 "N latitude is shown below. It has a room dimensions of length = 10 m, width = 8 m, and a ceiling height of 3 m. It has only one east facing exterior wall and is mounted with 3 double glass windows with 13 mm air spacing and no externalinternal shading. The exterior wall is made of 200 mm concrete block with interior and exterior finish. The dimensions of the glass windows are shown below. In this example, assume there are no heat gains across the ceiling, floor nor corridor. The adjoining two classrooms do not have any class throughout the day, so the air-conditioning systems in these two rooms are switched off and their temperatures are measured to be 33 C. The classroom room has tile (vinyl) floor covering and gypsum partition. Calculate the sensible, latent and total cooling loads of the classroom at 11:00 am on 21 July, from the following information. Adjoining classroom Classroom 3.0 m Ceiling 8.0 Adjoining classroom All dimensions in meters unless otherwise specified U-value for exterior wall : 0.4 Wim'K U-value for partition wall : 1.8 W/m K U-value for glass : 3.0 W/m K 1.2 x 1.5 1.2 x 1.5 1.2 x 1.5 10.0 1.0 x 1.2 1.0 x 1.2 1.0 x 1.2 Corridor
Qn.2. Cooling load calculations The floor plan of a mid-floor classroom in a multi-floor university building located at 40 "N latitude is shown below. It has a room dimensions of length = 10 m, width = 8 m, and a ceiling height of 3 m. It has only one east facing exterior wall and is mounted with 3 double glass windows with 13 mm air spacing and no externalinternal shading. The exterior wall is made of 200 mm concrete block with interior and exterior finish. The dimensions of the glass windows are shown below. In this example, assume there are no heat gains across the ceiling, floor nor corridor. The adjoining two classrooms do not have any class throughout the day, so the air-conditioning systems in these two rooms are switched off and their temperatures are measured to be 33 C. The classroom room has tile (vinyl) floor covering and gypsum partition. Calculate the sensible, latent and total cooling loads of the classroom at 11:00 am on 21 July, from the following information. Adjoining classroom Classroom 3.0 m Ceiling 8.0 Adjoining classroom All dimensions in meters unless otherwise specified U-value for exterior wall : 0.4 Wim'K U-value for partition wall : 1.8 W/m K U-value for glass : 3.0 W/m K 1.2 x 1.5 1.2 x 1.5 1.2 x 1.5 10.0 1.0 x 1.2 1.0 x 1.2 1.0 x 1.2 Corridor
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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Cooling load computation
Transcribed Image Text:Qn.2. Cooling load calculations
The floor plan of a mid-floor classroom in a multi-floor university building located at 40
"N latitude is shown below. It has a room dimensions of length = 10 m, width = 8 m,
and a ceiling height of 3 m. It has only one east facing exterior wall and is mounted
with 3 double glass windows with 13 mm air spacing and no externalinternal shading.
The exterior wall is made of 200 mm concrete block with interior and exterior finish.
The dimensions of the glass windows are shown below. In this example, assume there
are no heat gains across the ceiling, floor nor corridor. The adjoining two classrooms
do not have any class throughout the day, so the air-conditioning systems in these two
rooms are switched off and their temperatures are measured to be 33 "C. The
classroom room has tile (vinyl) floor covering and gypsum partition. Calculate the
sensible, latent and total cooling loads of the classroom at 11:00 am on 21 July, from
the following information.
Adjoining classroom
Classroom
3.0 m Ceiling
8.0
Adjoining classroom
All dimensions in meters
unless otherwise specified
U-value for exterior wall
: 0.4 W/mK
U-value for partition wall
: 1.8 W/m K
U-value for glass
: 3.0 W/m?K
1.2 x 1.5
1.2 x 1.5 1.2 x 1.5
10.0
1.0 x 1.2
1.0 x 1.2
1.0 x 1.2
Corridor
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