Q1) The wall of a drying oven is constructed by sandwiching an insulation material of thermal conductivity k=0.05 W/m K between thin metal sheets in which heat is generated uniformly at a rate of 2x10 W/m. The oven air is at T-300°C, and the corresponding convection coefficient is h-30 overall coefficient for convection and radiation from the outer surface is ho=10W/m² K. Express the mathematical formulation of temperature (T f(x)) during steady operation. W/m2 K. The air is To- 25°C, and the room at %3! T. Oven air Room air Tooj hy Toop he tt 1t

Q1) The wall of a drying oven is constructed by sandwiching an insulation material of thermal conductivity k=0.05 W/m K between thin metal sheets in which heat is generated uniformly at a rate of 2x10 W/m. The oven air is at T-300°C, and the corresponding convection coefficient is h-30 overall coefficient for convection and radiation from the outer surface is ho=10W/m² K. Express the mathematical formulation of temperature (T f(x)) during steady operation. W/m2 K. The air is To- 25°C, and the room at %3! T. Oven air Room air Tooj hy Toop he tt 1t

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

An oil flow through a 40 mm bore steel pipe with the thickness of 4 mm. The pipe is covered by 10 mm thickness of insulator with the thermal conductivity of 0.038 W/m.K as shown in Diagram 4b. The temperature of the oil in the pipe is 75°C and the ambient temperature is 17°C. The internal thermal conductivity of steel is 50 W/m.K and the inside and outside heat transfer coefficient are 300 W/m².C and 17 W/m?.C respectively. Neglecting radiation, calculate the following: i. Rate of heat flow per meter length of the pipe ii. The temperature of the outside surface (Ts). Ts Ambient Oil 75°C temperature 17°C 40 Note : All dimensions are in mm/Nota: Semua dimensi adalah dalam mm Diagram 4b/Rajah 4b
An isolating wall (made up of 2-10mm thick plywood with 5mm woven silica sheet in between) encloses a steam-room to prevent the outside area from having the same temperature as the inside of the room. If the total area of the wall is 100 sq.m. and coefficient of thermal conductivity (k) for plywood and silica sheets are 0.12 and 0.015 W/mK respecțively, what is the rate of heat transfer if the inside temperature is 800 °C while the outside is 42°C? answer must be in Watts * Your answer
A room is well insulated apart from a single-glazed window measuring 1 m2 and 4 mm thick. The internal air temperature is 22oC and outside it is -12oC. If the external convective heat transfer coefficient, hout, is double that of the inside coefficient, and the conductivity in the glass is negligible. Determine hout if Q = 100 W.
I need the answer as soon as possible
Q4-A furnace of 100 x 80 x 60-cm inside dimensions is constructed of a material having a C. thermal conductivity of 2.4 W/mK. The wall thickness is 10-cm. The inner surface temperatures is 1000 K and the outer environment is at 20C and 15 /m²C as a convection heat transfer coefficient. Determine the overall heat transfer coefficient based on one-dimension heat conduction analysis. Calculate the heat loss through the furnace wall.
None
I need the answer as soon as possible
Suppose that the 10 cm thick concrete wall of a commercial building measures 30 mby 4 m. The energy impinging on the surface is 700 W/m^2. Under these conditionsthe external air temperature is 25ºC, and the internal and external surfacetemperatures of the concrete wall are 17ºC and 40ºC, respectively. Calculate the net amount of thermal energy radiated by the wall answer = 41,880 W Data for wall: Heat transfer coefficient of air at 25ºC = 5 W/m^2KThermal conductivity of concrete = 1.2 W/mKEmissivity of concrete = 0.85Stefan’s constant = 5.7 x 10^-8 W/m^2K^4
an unsisulated 100 mm diameter steam pipe runs for 25 meters inside a room whose walls and air are at a temperature of 25 C. the superheated steam inside the pipe maintains the temperature at the pipe surface at 150 C. if the natural convection heat transfer coefficient of the air outside the pipe is 10 w/m^2 k and the surface emissivity is 0.8, compute for the total rate of heat transfer from the surface of the pipe in k/W
A furnace wall comprises three layers of thickness 250 mm, 100 mm, and 150 mm with thermal conductivities of 1.65, k and 9. W/m K respectively. The inside is exposed to gases at 1250 ˚C with convection of 25 W/m2K, and the inside surface is at 1100 ˚C, the outside surface air at 25 ˚C with convection of 12 W/m2K.Determine the unknown thermal conductivity ‘k’, in W/m2 K to 3 d.p
Required information Consider a large plane wall of thickness L = 0.4 m, thermal conductivity k= 1.8 W/m-K, and surface area A= 30 m The left side of the wall is maintained at a constant temperature of T = 90°C while the right side loses heat by convection to the surrounding air at Too = 25°C with a heat transfer coefficient of h = 24 W/m2.K. ok Assuming constant thermal conductivity and no heat generation in the wall, evaluate the rate of heat transfer through the wall. (Round your answer to the nearest whole number) ences The rate of heat transfer through the wall = W
Write the heat rate equation only, don’t evaluate. Using table 4.1 in “Introduction to Heat transfer, 6th ed., Wiley”