Discuss the three positions in which thermal insulation may be installed in a low-slope roof, and the advantages and disadvantages of each.
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Discuss the three positions in which thermal insulation may be installed in a low-slope roof, and the advantages and disadvantages of each.
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- How thick must the insulation layer be to achieve the requirement U = 0.18 W/m2K?A wall of ventilated facade with insulation must meet requirements:Bearing construction: Lightweight concreteλ lightweight concrete = 0.14 W/mK, d=100 mmλ insulation = 0.04 W/mK, d=? etcCold bridges 15% Guide to task 1:1) The requirement for the U-value with regard to cold bridges will be U - 15%.2)Ri for walls: 0.13 m2K/WRu for walls: 0.04 m2K/WA warehouse measures 40 feet by 50 feet and has 20-foot-high walls. Thewarehouse was built on a concrete slab and has 6 inches of insulation inthe wood frame walls and 91⁄2 inches in the ceiling. There are no windowsin the building, and the door is made just like the walls. What is the heat loadfor this warehouse in an area where there is a 75°F design temperaturedifference?A rectangular lot was measured using a 50-m steel tape at 30 oC. If the recorded length and width of the lot are 197.56m and 105.63m respectively. Determine the Error in the area, if the coefficient of thermal expansion is 0.0000116/ oC and standard temperature of the tape is 25 oC. detailed solution pls thank you
- Describe the key differences between unitized and stick frame curtain wall systems in terms of design, installation, and thermal performance.Calculate the total cooling load for a building at 32° North latitude at time 14 on 21 of August, outdoor design temperature 35 °C, daily range DR = 11.1 deg ⁰C 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 without 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…Pls. Answer thank you! A room's sensible space load is from occupants and infiltration, but excluding intentional ventilation, is 3.2 kw. A total of 600 L/s of outside air is required. What is most nearly the room sensible heat ratio?