N = Number units power saving per year in KWH η2&η1= Higher and lower overall efficiency of two pump sets. P = Power input in kW to motor (related to low efficiency pump) T = Running hours per year Pump efficiency calculation example ...
This app calculation is based on Centrifugal Pump. In this app we can calculate Following Powers: 1. hydraulic power 2.Shaft power 3.Motor Power This apps takes input of followings parameter: Flow rate in m3/hr pump head in m Material Density in kg/m3 ...
Calculation results for Example 6.4. ql STB/dFBHP psiΔpc psiPIP psiql′ bpdqg′ ft3/dvb ft/secηn %qing′ bpdGLR scf/STBΔpt psiΔHpump ft 500 2,333 583 1,750 539 0 0.532 66 0 150 2,040 1,232 1,000 2,167 667 1,500 1,078 0 0.534 50 0 150 2,040 1,836 2,000 1...
calculation formula of gear pump) example: hydraulic system, pump nominal displacement Q=10ml/rev, the motor frequency is 50HZ 4, The output pressure of the pump is 20Mpa, the volume efficiency of late 0%, mechanical efficiency Pump flow and output power for 85%.? Fifty N=120 ...
are at point [1]. This describes the total flow in the system, comprised of flow [3] plus flow [2] If only pump A operates, and then the system flow is point [5]. If only pump B operates, then the flow is point [4]. In this example, the two pumps have different ...
An example is the product tanker m/t ‘Helix’ built by Stocznia Szczecińska SA for the world-renowned shipowner SHELL of Australia. On its deck, to power it, there are twenty-two (22) independent submersible cargo pumps installed directly in the cargo tanks and two submersible ballast ...
The above example was a simplified example. The pump manufacturers usually provide a tabulated format to make it easy for review. The manufacturers also simulate the test result to actual field condition. The pump might be designed for crude oil, but in the shop will be tested by the water....
ExampleSuppose a pump moves 500 gallons of water per minute (GPM) against a total head of 100 feet. Find the WHP.Plugging the values into the equation:WHP = 500 x 100 / 3960WHP = 50000 / 3960WHP = 12.63The water horsepower in this scenario is approximately 12.63....
Featured Application: The calculation software developed in this paper, as the shield tunnel segment structure design calculation software, can provide cal... Q Huang,S Liu,Y Lv,... - Applied Sciences (2076-3417) 被引量: 0发表: 2022年 High-power liquid-cooled pump and signal combiner Embodi...
The electrical engineer’s interest in this system is that out of, for example, six lube oil pumps on each generator set, five of them are driven by electrical motor. The following is a description of the typical function of such pumps. 1. Main pump The main lube oil pump is a shaft...