Engineering, 26.11.2019 17:31 cobyontiveros
The defroster of an automobile functions by discharging warm air on the inner surface of the windshield. to prevent condensation of water vapor on the surface, the temperature of the air and the surface convection coefficient (t_infinity) must be large enough to maintain a surface temperature t that is at least as high as the dewpoint consider a windshield of length l = 800 mm and thickness f 6 mm and driving conditions for which the vehicle moves at a velocity of v = 70 mph in ambient air from laboratory experiments performed on a model of the vehicle, the average convection coefficient on the outer surface of the windshield is known to be correlated by an expression of the form n_ul = 0.030 where rel properties of the ambient air may be approximated as k what is the smallest value of h, required to prevent condensation on the inner surface?
Answers: 3
Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
Answers: 2
Engineering, 04.07.2019 18:10
What are the two (02) benefits, which may result from a successful implementation of preventive maintenance (pm) program in an organization? (clo3)a)- lean manufacturing b)-overlapping responsibilities c)-the planner is not qualified d)-accurate contractor information e)-reduction in equipment redundancies f)-accurate stores information
Answers: 3
Engineering, 04.07.2019 18:20
Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.
Answers: 3
Engineering, 04.07.2019 18:20
Apiston-cylinder device contains 0.1 m3 of liquid water and 0.9 m3 of water vapor in equilibrium at 800 kpa. heat is transferred at constant pressure until the temperature of water reaches 350 °c. determine (a) the quality of water at the initial state (b) the work associated with this process, (c) the heat associated with this process.
Answers: 2
The defroster of an automobile functions by discharging warm air on the inner surface of the windshi...
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