Engineering, 05.11.2019 02:31 algahimnada
In an electricity-generating facility, steam leaves a turbine and is piped to a condensing unit. after condensation occurs, it is desired to further cool the (distilled) water by means of a shell-and-tube exchanger. the water enters the heat exchanger at 110°f with a flow rate of 170,000 lbm/hr. the heat will be transferred to raw water from a nearby river. the raw water is available at 65°f, and the mass flow rate is 150,000 ibm/hr. it is proposed to use a heat exchanger that has a 17-1/4-in- id shell and 3/4-in-od, 18-bwg tubes that are 16 ft long. the tubes are laid out on a 15/16-in triangular pitch. the tube fluid will make two passes. the shell contains baffles that are spaced 1 ft apart. determine the outlet temperature of the distilled water (by using ntu method) and the pressure drop for each stream.
Answers: 1
Engineering, 03.07.2019 15:10
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
Answers: 1
Engineering, 04.07.2019 18:10
Give heat transfer applications for the following, (i) gas turbines (propulsion) ) gas turbines (power generation). (iii) steam turbines. (iv) combined heat and power (chp). (v) automotive engines
Answers: 1
Engineering, 04.07.2019 18:10
Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.
Answers: 3
Engineering, 04.07.2019 18:10
Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.
Answers: 3
In an electricity-generating facility, steam leaves a turbine and is piped to a condensing unit. aft...
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