Engineering, 28.11.2019 00:31 jonesromari
Consider a 10 m length of 2 cm i. d. stainless steel tube with wall temperature = 320k. water enters the tube at 300k with a flow rate of 9.4 x 10-4 m3 /s. determine the average convective heat transfer coefficient. properties of water: temperature (k) rho (kg/m3 ) µ x 106 (pa s) k (w/ m k) cp (j/kg k) 300 996.1 876 0.610 4180 310 993.1 708 0.628 4176 320 989.1 593 0.642 4177 properties of stainless steel (independent of temperature) rho = 7820 kg/m3 k = 16 w/ m k cp = 460.8 j/kg k.
Answers: 1
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
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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 18:20
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
Engineering, 04.07.2019 19:10
What is a monomer? how do they form a ploymer from the view point of chemical bonding?
Answers: 1
Consider a 10 m length of 2 cm i. d. stainless steel tube with wall temperature = 320k. water enters...
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