PLEASE SOLVE THIS IMMEDIATELY AND ALSO STEP BY STEP SOLUTION WITH CORRECT ANSWERS REQUIRED. IF DONE SO WELL, DEFINATELY
Posted: Sun May 15, 2022 9:33 pm
PLEASE SOLVE THIS IMMEDIATELY AND ALSO STEP BY STEP SOLUTION WITH CORRECT ANSWERS REQUIRED. IF DONE SO WELL, DEFINATELY A THUMBS UP AND PERFECT FEEDBACK WILL BE GIVEN.
Part B: 8 marks A double-glazed window is 0.85m high and 1.8m long. It consists of 2 sheets of glass 5mm thick (k = 0.78 Wim*C) seperated by a 8mm wide stagnant air gap (k = 0.026 W/m°C). Assuming an internal surface temperature of 20°C and -10°C outside, as well as internal and external heat transfer co-efficients of 12 W/m2 °C and 42 Wim? "Crespectively: Determine i) the overall heat transfer co-efficient and ii) the rate of heat transfer, Total marks [30] t[°C] 100 200 200 8 600 800 1000 1200 1400 1800 h[kJ/kg] 000 0002 OOEE OOP P (MPa) 2000 ho 60 8 89 20 10 5 s [kJ/kgk] 10,5 2000 2700 OORZI 12900 00001 3100 3200 3300 oor 3500 30 3700 3800 h (kJ/kg) Figure 30.1
Part B: 8 marks A double-glazed window is 0.85m high and 1.8m long. It consists of 2 sheets of glass 5mm thick (k = 0.78 Wim*C) seperated by a 8mm wide stagnant air gap (k = 0.026 W/m°C). Assuming an internal surface temperature of 20°C and -10°C outside, as well as internal and external heat transfer co-efficients of 12 W/m2 °C and 42 Wim? "Crespectively: Determine i) the overall heat transfer co-efficient and ii) the rate of heat transfer, Total marks [30] t[°C] 100 200 200 8 600 800 1000 1200 1400 1800 h[kJ/kg] 000 0002 OOEE OOP P (MPa) 2000 ho 60 8 89 20 10 5 s [kJ/kgk] 10,5 2000 2700 OORZI 12900 00001 3100 3200 3300 oor 3500 30 3700 3800 h (kJ/kg) Figure 30.1