Ashleymaeppoyicaridn
Answered

IDNStudy.com, ang iyong mapagkukunan para sa mga sagot ng eksperto at komunidad. Alamin ang mga detalyadong sagot sa iyong mga tanong mula sa aming malawak na kaalaman sa mga eksperto.

The rate of heat transferred varies jointly with the cross-sectional area of the material transferring heat and the temperature difference between one side of the material and the other. It also varies Inversely with the thickness of the material. The rate of heat transferred through a window is 480 W. The cross-sectional area of the window is 3 m and its thickness is 0.05 m. The temperature difference Inside and outside is 10k. If the area of the window is 3.75 m and its thickness is 0.06 m. and temperature difference is 8k, how much is the rate of heat transferred? ​

Sagot :

Avillaluzidn

Let H be the rate of heat transfer

A = cross sectional area

T = temperature difference

t = thickness

k = constant

H = kAT / t

480 = k (3)(10)/0.05

k = (480)(0.05)/30 = 0.8

Get H when A=3.75, t=0.06, T=8

H = kAT / t

= (0.8)(3.75)(8)/0.06

H = 400 W

OR just use proportions, since k is the same for both situations:

k = Ht / AT

H1 t1 / A1 T1 = H2 t2 / A2 T2

(480)(0.05) / (3)(10) = (H2)(0.06)/(3.75)(8)

H2 = (480)(0.05)(3.75)(8) / (3)(10)(0.06)

= 400W

Ang iyong kontribusyon ay napakahalaga sa amin. Patuloy na magbahagi ng impormasyon at kasagutan. Sama-sama tayong magtutulungan upang makamit ang mas mataas na antas ng karunungan. Gawin mong pangunahing mapagkukunan ang IDNStudy.com para sa maasahang mga sagot. Nandito kami para sa iyo.