Inside a wall measuring N/Sx N /3m, there are 2(glass thickness lcm) single-glazed windows measuring 1.5 mx 3 m with a heat transfer coefficient of K there is a window. The ambient temperature on the inside of the wall is N20C, the outdoor temperature is - N3 oC, the coefficients of external and internal convection are aş= N W/m2 C, aic = N/3 W/m2 C is. The wall is from the outside to the inside, 0.1N cm. the outer plaster with a thickness of k= 0.3N W/ moC, with a thickness of N/ 2 cm k= 0.8 W/moC reinforced concrete is composed of 1 cm thick k= 0.6 W/m oC gypsum honey inner plaster.Find out the total heat loss. To reduce heat loss by 80%, k= How many cm of insulating(styrofoam) material with an oC of 0.001(N+N2 )W/m should be N=26 used(calculations will be made for single and double glazing. My greatest achievement please heap the required amount of flow before and after it is made N2=9 N3=119

Inside a wall measuring N/Sx N /3m, there are 2(glass thickness lcm) single-glazed windows measuring 1.5 mx 3 m with a heat transfer coefficient of K there is a window. The ambient temperature on the inside of the wall is N20C, the outdoor temperature is - N3 oC, the coefficients of external and internal convection are aş= N W/m2 C, aic = N/3 W/m2 C is. The wall is from the outside to the inside, 0.1N cm. the outer plaster with a thickness of k= 0.3N W/ moC, with a thickness of N/ 2 cm k= 0.8 W/moC reinforced concrete is composed of 1 cm thick k= 0.6 W/m oC gypsum honey inner plaster.Find out the total heat loss. To reduce heat loss by 80%, k= How many cm of insulating(styrofoam) material with an oC of 0.001(N+N2 )W/m should be N=26 used(calculations will be made for single and double glazing. My greatest achievement please heap the required amount of flow before and after it is made N2=9 N3=119

Sustainable Energy

2nd Edition

ISBN:9781337551663

Author:DUNLAP, Richard A.

Publisher:DUNLAP, Richard A.

Chapter8: Direct Use Of Solar Energy

Section: Chapter Questions

Problem 17P

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