1. Inside a wall with dimensions of N/8x N /3m, there are 2 (glass thickness 1cm) single glazed windows with a heat transition coefficient of K in sizes 1.5 m x 3 m. On the inside of the wall, the ambient temperature is N2°C, the ambient temperature is -N3 °C, the outer and inner transport coefficients are a out=N W/m² C, aiç = N/3 W/m² C. The wall consists of outer plaster with a thickness of 0.1N cm. thick k = 0.3N W/m °C, reinforced concrete with a thickness of N/2 cm = 0.8 W/m °C, k = 0.6 W/m °C gypsum honey interior plaster with a thickness of 1 cm. Find the total heat loss. To reduce heat loss by 80%, how many cm should be used from insulating material with k = 0.001 (N+N2) W/m °C (calculations will be made for single and double glazing). Heaplay the required amount of drain before and after the work is made.

1. Inside a wall with dimensions of N/8x N /3m, there are 2 (glass thickness 1cm) single glazed windows with a heat transition coefficient of K in sizes 1.5 m x 3 m. On the inside of the wall, the ambient temperature is N2°C, the ambient temperature is -N3 °C, the outer and inner transport coefficients are a out=N W/m² C, aiç = N/3 W/m² C. The wall consists of outer plaster with a thickness of 0.1N cm. thick k = 0.3N W/m °C, reinforced concrete with a thickness of N/2 cm = 0.8 W/m °C, k = 0.6 W/m °C gypsum honey interior plaster with a thickness of 1 cm. Find the total heat loss. To reduce heat loss by 80%, how many cm should be used from insulating material with k = 0.001 (N+N2) W/m °C (calculations will be made for single and double glazing). Heaplay the required amount of drain before and after the work is made.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

N=35
N2=16
N3=816
N1=6
1. Inside a wall with dimensions of N/8x N /3m, there are 2 (glass thickness 1cm) single
glazed windows with a heat transition coefficient of K in sizes 1.5 m x 3 m. On the inside of
the wall, the ambient temperature is N2°C, the ambient temperature is -N3 °C, the outer and
inner transport coefficients are a out= N W/m? C, aiç = N/3 W/m? C. The wall consists of
outer plaster with a thickness of 0.1N cm. thick k = 0.3N W/m °C, reinforced concrete with a
thickness of N/2 cm = 0.8 W/m °C, k = 0.6 W/m °C gypsum honey interior plaster with a
thickness of 1 cm. Find the total heat loss. To reduce heat loss by 80%, how many cm should
be used from insulating material with k = 0.001 (N+N2) W/m °C (calculations will be made
for single and double glazing). Heaplay the required amount of drain before and after the
work is made.

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