Engineering, 16.04.2020 18:23 melaniegilbreath
The following equation is used to calculate the heat transfer Q in a boiler given the surface area A, the overall heat transfer coefficient U, the heating fluid inlet temperature T1, the heating fluid exit temperature T2, and the temperature of the boiling fluid Ts. Let T1 = 600 o F, Ts = 535 o F, and Q/(UA) = 34.1 o F. a. Show that a root exists between T2 = 536 o F and T2 = 580 o F. (Do not find the actual root yet.) b. Write a MATLAB program
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Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.
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Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
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Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
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Engineering, 04.07.2019 19:10
With increases in magnification, which of the following occur? a. the field of view decreases. b. the ambient illumination decreases. c. the larger parts can be measured. d. the eyepiece must be raised.
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The following equation is used to calculate the heat transfer Q in a boiler given the surface area A...
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