Engineering, 13.10.2020 04:01 hdjehd

Consider the base plate of an 800-W household iron with a thickness of L = 0.7 cm, base area of A = 160 cm2, and thermal conductivity of k = 20 W/m⋅K. The inner surface of the base plate is subjected to uniform heat flux generated by the resistance heaters inside. When steady operating conditions are reached, the outer surface temperature of the plate is measured to be 85°C. Disregard any heat loss through the upper part of the iron and taking the nodal spacing to be 0.2 cm. Required:
a. Express the differential equation and the boundary conditions for steady one-dimensional heat conduction through the plate.
b. Obtain a relation for the Variation of temperature in the base plate by solving the differential equation.
c. Evaluate the inner surface temperature.

Answers: 3

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned

Answers: 2

Answer

Engineering, 04.07.2019 18:10

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0

Answers: 3

Answer

Engineering, 04.07.2019 19:10

Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.

Answers: 2

Answer

Engineering, 04.07.2019 19:10

Which of the following is the most important advantage of a large field of view? a. allows larger areas to be examined b. relieves eyestrain c. minimizes parallax errors. d. increases precision in proportion to the in- crease in field of view

Answers: 2

Answer

You know the right answer?

Consider the base plate of an 800-W household iron with a thickness of L = 0.7 cm, base area of A =...

Questions