Engineering, 29.04.2021 19:40, max280
1. Ammeter, voltmeter, or warning light that informs the driver of system condition. 2. Wiring that connects the parts of the system. 3. Generator that uses mechanical power to produce electricity. 4. May be used to supply current to the rotor field windings. 5. Creates a rotating magnetic field. 6. Used to produce a low-friction surface for the rotor shaft. 7. Electronic device that controls output voltage and current of alternator. 8. Provides current to initially energize alternator and helps stabilize alternator output. 9. Links engine crankshaft pulley with alternator pulley to drive alternator. 10. A stationary set of windings in the alternator.
Answers: 1
Engineering, 04.07.2019 18:10, genyjoannerubiera
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
Answers: 1
Engineering, 04.07.2019 18:20, xcapo1x
Refrigerant-134a enters the compressor of a refrigerator as superheated vapor at 0.14 mpa and -10°c at a rate of 0.05 ka/s and leaves at 0.8 mpa and 50°c. the refrigerant is cooied in the condenser to 0.72 mpa and 26'c. it is then throttled to 0.15 mpa. sketch the t-s diagram for the system and evaluate: 6) the rate of heat removai from the refrigerated space (kw), it) the power input to the compressor (kw), ii) the isentropic efficiency of the compressor (%), and iv) the cop of the refrigerator.
Answers: 2
Engineering, 04.07.2019 19:20, anggar20
Air enters a horizontal, constant-diameter heating duct operating at steady state at 290 k, 1 bar, with a volumetric flow rate of 0.25 m°/s, and exits at 325 k, 0.95 bar. the flow area is 0.04 m2. assuming the ideal gas model with k = 1.4 for the air, determine (a) the velocity at the inlet and exit, each in m/s, and (c) the rate of heat transfer, in kw flow rate, in kg/s, (b) the mass kg 0.3
Answers: 2
1. Ammeter, voltmeter, or warning light that informs the driver of system condition. 2. Wiring that...
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