Engineering, 29.01.2021 02:50 eve2055

19. The total load of an industrial plant is 4000 kW, and the load operates at a power factor of 0.85 lag. If an 800-hp synchronous motor with 93.5% rated efficiency and operating at unity power factor is added,
what is the new value of power factor, in percent?
A. 89.5%
B. 88.2%
C. 76.0%
D. 98.6%

Answers: 1

Show answers

Another question on Engineering

Engineering, 04.07.2019 18:10

Ifa component is made of two or more materials with different modulus of elasticity (e), it is called a composite member and we calculate the factor·n". mention the formula for calculating n". also, ifn> 1, explain what will happen to the 1. transformed.gi) ifn 1, what will happen to the material when transformed material when

Answers: 1

Answer

Engineering, 04.07.2019 19:20

Air at a pressure of 1atm and a temperature of 40 c is in parallel flow over the top surface of a flat plate that is heated to a uniform temperature of 120 c. the plate has a length of 0.40m (in the flow direction) and a width of 0.15m. the reynolds number based on the plate length is 50, 000. what is the rate of heat transfer from the plate to the air? if the free stream velocity of the air is doubled and the pressure is increased to 10 atm what is the rate of heat transfer?

Answers: 2

Answer

Engineering, 06.07.2019 03:20

Acountershaft is supported by two tapered roller bearings using indirect mounting. the radial bearing loads are 1120 lb for the left-hand bearing and 2190 lb for the right-hand bearing. the shaft rotates at 400 rpm and is to have an l10 life of 40,000 hours and an application factor of 1.4. assume ka2k 15, and find the required radial rating of each bearing

Answers: 3

Answer

Engineering, 06.07.2019 03:20

1kg of water contained in a piston-cylinder assembly undergoes two processes in series from an initial state where the pressure is 3.0 bar and the temperature is 150°c process 1-2: the water is compressed isothermally to a volume of 0.25 m^3 with 120 kj of work being done to the system. process 2-3: the water is heated at constant volume to a final pressure of 10 bar. a. find the change in internal energy for the system. b. calculate the amount of heat transferred, in kj. c. sketch both processes on a t-v diagram. (196.33 kj/kg, 76.33 kj)

Answers: 1

Answer

You know the right answer?

19. The total load of an industrial plant is 4000 kW, and the load operates at a power factor of 0.8...

Questions