Ask Question
EngineeringEngineering
2 February, 23:34

You are asked to look into adding a circuit for a new pump in a hydraulics lab. After some investigation of the electrical service in the building you find that there are a few voltage options; 120V, single-phase; 208V, single-phase; 208V, 3-phase. Which pump electrical choice would be the most economical in terms of first cost for electrical construction materials and overall electrical efficiency

+5
Answers (1)
  1. 3 February, 01:56
    0
    A single-phase 208V would be the most economical choice for the given case.

    A 3-phase 208V pump would be the most efficient choice for the given case.

    Explanation:

    We are given few options for a new pump in a hydraulics lab.

    The options are:

    1. Single-phase 120V

    2. Single-phase 208V

    3. 3-phase 208V

    Which pump electrical choice would be the most economical in terms of first cost for electrical construction materials and overall electrical efficiency?

    Most Economical:

    If we are looking for most economical choice then single phase pump would cost less than 3-phase pump.

    We have two options for the single phase pump, 120V and 208V.

    If we choose 208V pump then it would provide 208/120 = 1.73 times more power than the 120V pump.

    Therefore, single-phase 208V would be most economical choice for the given case. (assuming that 120V and 208V costs same, which is the usual case)

    Most Efficient:

    A 3-phase pump is more efficient than the single phase pump, therefore, 3-phase 208V pump would be the most efficient choice for the given case.

    Conclusion:

    For the given options, it is not possible to select the most economical and most efficient pump at the same time, therefore, two different pumps are being selected for this case.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “You are asked to look into adding a circuit for a new pump in a hydraulics lab. After some investigation of the electrical service in the ...” in 📘 Engineering if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
All holly plants are dioecious-a male plant must be planted within 45 to 55 feet of the female plants in order to yield berries. A home improvement store has 17 unmarked holly plants for sale, 6 of which are female.
Answers (1)
Lead is obtained from the mineral galenite. The storage bin for the galenite must be able to hold 50,000 kg of galenite. If the density of galenite is 7.51 g/cm3, what volume does the storage bin need to be so as to hold the galenite
Answers (1)
What is the pressure drop when a liquid (viscosity = 0.001 Pa-s, density = 1000 kg/m3) flows at a rate of 40 liters/minute over a 2-cm diameter steel pipe that is 100 meters long? Effective roughness factor (k) is 0.046 mm.
Answers (1)
Consider a reliable data transfer protocol that uses only negative acknowledgements. Suppose the sender sends data only infrequently. Would a NAKonly protocol be preferable to a protocol that uses ACKs?
Answers (1)
For the following pairs of sinusoidal time functions, determine which one leads/lags and by how much. (a) ?1 (?) = 4sin (6π*104?+60°) V and?2 (?) = 2cos (6π*104?-20°) V. (b) ? (?) = 10cos (400?-75°) V and? (?) = 4sin (400?+30°) A.
Answers (1)
New Questions in Engineering
A completely reversible heat pump produces heat at a rate of 100 kW to warm a house maintained at 25℃. The exterior air, which is at 0℃, serves as the source.
Answers (1)
A closed system undergoes a process in which work is done on the system and the heat transfer Q occurs only at temperature Tb. For each case, determine whether the entropy change of the system is positive, negative, zero, or indeterminate.
Answers (1)
A scientist who is evaluating an ancient human skeleton for signs of vitamin and nutrient deficiency is conducting:
Answers (1)
Which of the following is required in order to make a protected left turn A. A left green arrow B. No oncoming traffic C. A left turn only lane D. A large enough gap
Answers (1)
At steady state, a cycle develops a power output of 10 kW for heat addition at a rate of 10 kJ per cycle of operation from a source at 1500 K. Energy is rejected by heat transfer to cooling water at 300 K.
Answers (1)
Home » Engineering » You are asked to look into adding a circuit for a new pump in a hydraulics lab. After some investigation of the electrical service in the building you find that there are a few voltage options; 120V, single-phase; 208V, single-phase; 208V, 3-phase.
Sign Up Forgot Password?