The internet café, shown in the figure, is on the ground floor of a single storey (G) building in Çanakkale. The neighboring room, store, is not conditioned Downstairs: Basement (not conditioned) Upstairs: Terrace (sunlit) Outer walls: 30 cm brick, U=3.0 kJ/h.m2. 0C, exterior surfaces dark painted Inner walls: U=7.0 kJ/h.m2. 0C Ceiling: 15 cm concrete, U=2.0 kJ/h.m2. 0C Floor: U=6.0 kJ/h.m2. 0C Windows: Single window with single absorbing glass, metal sash, industrial type, shaded with dark colored, half drawn inside roller shade, wind speed is 16 km/h Outer door: U=5.0 kJ/h.m2. 0C, without glass (assume no solar heat gain through the outer door) Average occupancy is 45 people 2000 W electric lights in total 45 PC, each releasing 200 W of heat. a) Determine the appropriate db and wb temperatures (inside design conditions) for the office in summer conditions and calculate the heat gain at 16:00. b) Determine the appropriate db temperature, and find the wb temperature and also the required volumetric flow rate of the supply air.
The internet café, shown in the figure, is on the ground floor of a single storey (G) building in Çanakkale.
The neighboring room, store, is not conditioned
Downstairs: Basement (not conditioned)
Upstairs: Terrace (sunlit)
Outer walls: 30 cm brick, U=3.0 kJ/h.m2. 0C, exterior surfaces dark painted
Inner walls: U=7.0 kJ/h.m2. 0C
Ceiling: 15 cm concrete, U=2.0 kJ/h.m2. 0C
Floor: U=6.0 kJ/h.m2. 0C
Windows: Single window with single absorbing glass, metal sash, industrial type, shaded with dark colored, half drawn inside roller shade, wind speed is 16 km/h
Outer door: U=5.0 kJ/h.m2. 0C, without glass (assume no solar heat gain through the outer door)
Average occupancy is 45 people
2000 W electric lights in total
45 PC, each releasing 200 W of heat.
a) Determine the appropriate db and wb temperatures (inside design conditions) for the office in summer conditions and calculate the heat gain at 16:00.
b) Determine the appropriate db temperature, and find the wb temperature and also the required volumetric flow rate of the supply air.
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