Engineering, 21.11.2019 07:31 Robyn1234
Consider the flow of engine oil at 10˚c in a 40-cm diameter pipeline at an average velocity of 0.5 m/s. a 1500-m long section of the pipeline passes through icy waters of a lake at 0˚c. disregarding the thermal resistance of the pipe material, determine (a) the temperature of the oil when the pipe leaves the lake (b) the rate of heat transfer from the oil and (c) the pressure losses in the pipe. assume the flow is hydro-dynamically fully developed.
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Engineering, 04.07.2019 18:10
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
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Engineering, 04.07.2019 18:10
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
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Engineering, 04.07.2019 18:10
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
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Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
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Consider the flow of engine oil at 10˚c in a 40-cm diameter pipeline at an average velocity of 0.5 m...
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