Engineering, 24.12.2019 07:31 Tristanana
(a) calculate the heat flux (in w/m2) through a sheet of a metal 12 mm thick if the temperatures at the two faces are 310 and 130 ˚c. assume steady-state heat flow and that the thermal conductivity of this metal is 51.1 w/m·k.(b) what is the heat loss per hour if the area of the sheet is 0.28 m2? (c) what will be the heat loss per hour if a material with a thermal conductivity of 1.1 w/m·k is used? (d) calculate the heat loss per hour if the first metal is used and the thickness is increased to 21 mm.(a) /m2( j/h(c) /h( j/h
Answers: 3
Another question on Engineering
Engineering, 03.07.2019 15:10
If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.
Answers: 1
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
Engineering, 04.07.2019 18:10
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
Answers: 3
You know the right answer?
(a) calculate the heat flux (in w/m2) through a sheet of a metal 12 mm thick if the temperatures at...
Questions
Computers and Technology, 07.03.2020 00:19
Computers and Technology, 07.03.2020 00:19
