Current Attempt in Progress40°C and the corresponding convection coefficient is h; = 30 W/m2.K, what are the inner and outer surfacetemperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T,The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T;= -10°C and the0,0associated convection coefficient is h, = 65 W/m2-K? Evaluate the properties of the glass at 300 K.°CIsii°CTs,0i||||

Answered: Image /qna-images/answer/a053e6b3-b295-44b3-8ca4-a3f915867fec.jpg

Current Attempt in Progress The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T 40°C and the corresponding convection coefficient is h; = 30 W/m2.K, what are the inner and outer surface temperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T, = -10°C and the associated convection coefficient is ho = 65 W/m²-K? Evaluate the properties of the glass at 300 K. T,i °C i T5,0 i °C

Current Attempt in Progress The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at T 40°C and the corresponding convection coefficient is h; = 30 W/m2.K, what are the inner and outer surface temperatures, in °C, of 4-mm-thick window glass, if the outside ambient air temperature is T, = -10°C and the associated convection coefficient is ho = 65 W/m²-K? Evaluate the properties of the glass at 300 K. T,i °C i T5,0 i °C

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

See similar textbooks

Similar questions

Q2/ A hot surface at 100 C is to be cooled by attaching 27778 copper fins (k=237 w/m.K), 3 cm long for each fin, 0.25 cm dia. to it. Temp. of surrounding air is 30 C and h =35 w/m2.K on the surface. Calculate the heat rate from the surface for a 1m X 1m section of the plate. Also, determine the effectiveness of the fins.
An overhead 65-m-long, uninsulated industrial steam pipe of 80 mm diameter is routed through a building whose walls and air are at 30 °C. Pressurized steam maintains a pipe surface temperature of 200 "C, and the coefficient associated with natural convection is h = 15 W/m'K. The surface emissivity is e= steam line? 0.6. What is the rate of heat loss from the
The temperature distribution at a certain input of time in concrete slab during curing is given by T= 3+3r + 16 where x is in cm and T is in K. The rate of change of temperature with time is given (a = 0.003 cm2/s). (a) 0.009 K/s (b) 0.0048 K/s (c) -0.0012 K/s (d) -0.0018 K/s
Please fats. The answer in the box is incorrect
A food product with 80% moisture content in a 10 cm diameter can wants to be frozen. The density of the product is 1000 kg / m³, the thermal conductivity is 1.0 W / (m K), and the initial freezing temperature is -2 ° C. After 14 hours in the freezing medium -30 ° C, the product temperature becomes -10 ° C. Estimate the convection heat transfer coefficient of the freezing medium. Assume the can as an infinite cylinder.
A cylindrical shape body of length is 1.9 m and diameter is 400 mm is inside a room where the ambient temperature is equal to 300 K. The initial temperature of the body is equal to 350 K. If the heat convective coefficient is equal to 1.3 W/m^2.K. What is the thermal conductivity K.
Answer correctly and quickly as possible please.
Heat transfer
A 300 mm thick wall (k= 1.5 W/mK, p = 2600 kg/m³, cp = 1000 J/kg⚫K) has a uniform original temperature of 900 °C. At the time t = 0, its both surfaces are suddenly exposed to air (T∞ = 25 °C, h = 30 W/m²K). (a) Calculate the Biot number of the wall. Does it have a uniform temperature? (b) After 3 hours, what is the temperature at the middle plane (@x = 0)? Symme try ½ L= 300 mm h = 30 W/m² K wall T∞ = 25°C h = 30 W/m² K To=25°C 9. Ah (T-To G=ept Hot air x p = 2600 kg/m³ k=1.5 W/m K 900c Hot air Tr= 96w arrume te Now.
The rear window of an automobile is defogged by passing warm air over its inner surface. If the warm air is at Ti = 40°C and the = 30 W/m2-K, what are the inner and outer surface temperatures, in °C, of 4-mm-thick corresponding convection coefficient is h; window glass, if the outside ambient air temperature is To = -15°C and the associated convection coefficient is h, = 65 W/m²-K? o,0 Evaluate the properties of the glass at 300 K. Tsi i °C Ts,0 i °C
A car's rear window is defogged by the passage of hot air over its inner surface. If the hot air is at T∞, i = 40 °C and the corresponding convection heat transfer coefficient is hi = 30 W/(m²K), what are the temperatures of the inner and outer surfaces of the glass, which has 4 mm thick, if the outdoor ambient air temperature for T∞, e = −10 °C and the associated convective coefficient for he = 65 W/(m²K)?