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Q31 Calculate the total cooling load for a building at 32° North latitude at time 14 of July, outdoor design temperature 35 °C, daily range DR-11.1 °C and indoor design temperature 25.5 °C. The building has the following data: A-The ceiling is constructed from 152.4 mm lightweight concrete (I.W concrete) and with a suspended ceiling, dark colour (k-1) and no mechanical ventilation (f= 1). Area= 25 m². B-South window consists of 3 mm one layer without internal shading, area=4 m², U=4.5 W/m2 °C. Assume shading coefficient SC=1 and cooling load temperature difference CLTD=7 °C and cooling load factor CLF=0.55. C- West wall is constructed from 101.6 mm heavyweight concrete wall+finish (H.W. concrete wall+Finish) (group E) and medium colour (k=0.83). Area= 17.5 m². D- There is another window that has one hinge that causes an infiltration rate of 5 L/(s.m) of infiltrated air. The moving window has a height of 1.5 m and a width of 1 m. E- Four occupants in the building. The measured change in the enthalpy is Ah-20 kJ/kg. Assume the building is used as a meeting hall with 15 L/s per person.

Q31 Calculate the total cooling load for a building at 32° North latitude at time 14 of July, outdoor design temperature 35 °C, daily range DR-11.1 °C and indoor design temperature 25.5 °C. The building has the following data: A-The ceiling is constructed from 152.4 mm lightweight concrete (I.W concrete) and with a suspended ceiling, dark colour (k-1) and no mechanical ventilation (f= 1). Area= 25 m². B-South window consists of 3 mm one layer without internal shading, area=4 m², U=4.5 W/m2 °C. Assume shading coefficient SC=1 and cooling load temperature difference CLTD=7 °C and cooling load factor CLF=0.55. C- West wall is constructed from 101.6 mm heavyweight concrete wall+finish (H.W. concrete wall+Finish) (group E) and medium colour (k=0.83). Area= 17.5 m². D- There is another window that has one hinge that causes an infiltration rate of 5 L/(s.m) of infiltrated air. The moving window has a height of 1.5 m and a width of 1 m. E- Four occupants in the building. The measured change in the enthalpy is Ah-20 kJ/kg. Assume the building is used as a meeting hall with 15 L/s per person.

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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Q31 Calculate the total cooling load for a building at 32° North latitude at time 14 of July, outdoor design temperature 35 °C, daily range DR-11.1 °C and indoor design temperature 25.5 °C. The building has the following data: A-The ceiling is constructed from 152.4 mm lightweight concrete (I.W concrete) and with a suspended ceiling, dark colour (k-1) and no mechanical ventilation (f= 1). Area= 25 m². B-South window consists of 3 mm one layer without internal shading, area=4 m², U=4.5 W/m2 °C. Assume shading coefficient SC=1 and cooling load temperature difference CLTD=7 °C and cooling load factor CLF=0.55. C- West wall is constructed from 101.6 mm heavyweight concrete wall+finish (H.W. concrete wall+Finish) (group E) and medium colour (k=0.83). Area= 17.5 m². D- There is another window that has one hinge that causes an infiltration rate of 5 L/(s.m) of infiltrated air. The moving window has a height of 1.5 m and a width of 1 m. E- Four occupants in the building. The measured change in the enthalpy is Ah-20 kJ/kg. Assume the building is used as a meeting hall with 15 L/s per person.
Transcribed Image Text:Q31 Calculate the total cooling load for a building at 32° North latitude at time 14 of July, outdoor design temperature 35 °C, daily range DR-11.1 °C and indoor design temperature 25.5 °C. The building has the following data: A-The ceiling is constructed from 152.4 mm lightweight concrete (I.W concrete) and with a suspended ceiling, dark colour (k-1) and no mechanical ventilation (f= 1). Area= 25 m². B-South window consists of 3 mm one layer without internal shading, area=4 m², U=4.5 W/m2 °C. Assume shading coefficient SC=1 and cooling load temperature difference CLTD=7 °C and cooling load factor CLF=0.55. C- West wall is constructed from 101.6 mm heavyweight concrete wall+finish (H.W. concrete wall+Finish) (group E) and medium colour (k=0.83). Area= 17.5 m². D- There is another window that has one hinge that causes an infiltration rate of 5 L/(s.m) of infiltrated air. The moving window has a height of 1.5 m and a width of 1 m. E- Four occupants in the building. The measured change in the enthalpy is Ah-20 kJ/kg. Assume the building is used as a meeting hall with 15 L/s per person.
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