scholarly journals Modification of Drain Hayward Strainer Pipe Header Pipes to Improve Efforts of Cooling Water Pump Train EF Badak LNG Bontang

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Riky Ferdi Yanto
Keyword(s):  
Sea Water ◽  
Cooling Water ◽  
Exhaust System ◽  
Good Choice ◽  
Back Pressure ◽  
Test Field ◽  
Field Observations ◽  
Water Pump ◽  
Pump System ◽  
Pump Pressure

In Badak LNG the role of the cooling water pump is very important, and becomes the main support for transferring sea water where the water is used in the cooling process of industrial machinery or as emergency safety for firefighters. Water pump cooling has a hayward strainer that serves to filter water with a smaller filter so that the cooling water that is sent is completely free of dirty water. The purpose of this final project is to find out the main causes of the performance degradation of the EF cooling water pump due to the barrier to the hayward strainer which results in lower pressure on the cooling water. The methodology applied was based on field observations and conducted a solidwork simulation test. Field observations show that when more than one hayward strainer is in backwash, the effectiveness of backwash release decreases because the main disposal of the hayward strainer becomes one. The solidwork simulation found that the pressure on the Hayward train E strainer was high enough to create back pressure and limit the flow of the Hayward strainer outlet. By performing actual simulations by only running only one exhaust system at Hayward train E trainer has improved performance on the hayward strainer system. The performance analysis of the cooling water pump was carried out to determine the cause of the pump pressure drop on the hayward strainer and it was found that the main cause of performance was due to back pressure disposal, the pressure was increasing at each outlet of the Hayward strainer which had more distance to the outlet drain. Taking into account the problem of back pressure, separating the train E and F cooling water pump lines is a good choice. After simulating solid work, the separation of the E train line and the F colling water train shows an increase in the performance of the cooling water pump system because the Hayward strainer runs well so that the pump pressure is maintained for the industrial engine cooling needs.

Power characteristics of variable frequency speed control-based water pumps in open cooling water systems

2017 ◽  
Vol 39 (3) ◽  
pp. 284-294
Author(s):  
Yiping Song ◽  
Jianing Zhao
Keyword(s):  
Characteristic Equation ◽  
Water System ◽  
Cooling Water ◽  
Water Systems ◽  
Open Loop ◽  
Variable Frequency ◽  
Water Pump ◽  
Pump System ◽  
Power Characteristics ◽  
Water Pumps

The operational power characteristics of variable frequency speed control-based water pumps in an open cooling water system were studied experimentally. It was found through this research that before and after frequency conversion, the ratio of the power of a particular frequency to the power of the rated frequency of the water pump system shows a third-power relationship. A data fitting method was used to obtain the equation for the power and frequency ratio of the system under the overall operating conditions. The experiment shows that the system height difference has no effect on the basic form of the characteristic equation. Finally, when unified consideration is given to the pump, motor and frequency converter, the calculated power of the water pump system is very close to the actual value.This power characteristic equation contributes to calculations relating to the water pump operational speed regulation in an open cooling water system. Practical application: Variable frequency speed-regulating systems for pumps are applied in open loop water systems, such as those supplying cooling towers. However, the standard cube law which is used to determine the power of the water pump system is inappropriate and exaggerates the potential energy-saving. This study determined a new energy model for the water pump system that can more accurately calculate the total power of the variable frequency controlled water pump when used in open loop systems.

An Experimental Study on the Clutch-Type Water Pump of Diesel Passenger Vehicle for Reducing Fuel Consumption and CO2 Emission

2011 ◽  
Author(s):  
Soo-jin Jeong ◽  
Woo-seung Kim ◽  
Chang-boke Oh ◽  
Jung-kwon Park ◽  
Ho-kil Lee ◽  
...  
Keyword(s):  
Fuel Consumption ◽  
Cooling System ◽  
Cooling Water ◽  
Optimal Operation ◽  
Engine Oil ◽  
Water Pump ◽  
Control Logic ◽  
Pump System ◽  
Warm Up ◽  
Type Water

A typical cooling system of an engine relies on a water pump that circulates the coolant through the system. The pump is typically driven by the crankshaft through a mechanical link with engine starting. In order to reduce the friction and warm-up time of an engine, the clutch-type water pump (CWP) was applied in 2.0 liter diesel vehicle. The clutch-type water pump can force cooling water to supply into an engine by the operation of an electromagnetic clutch equipped as the inner part of pump system. The operation of CWP is decided by temperature of cooling water and engine oil. And, the control logic for an optimal operation of the clutch-type water pump was developed and applied in engine and vehicle tests. in this study, the warm-up time was measured with the conventional water pump and clutch-type water pump in engine tests. And the emission and the fuel consumption were evaluated under NEDC mode in vehicle tests. Also, tests were carried out at the various temperature conditions starting the operation of CWP. As the results, the application of CWP can improve the fuel consumption and CO2 reduction by about 3%.

Wave Energy-Driven Resonant Sea-Water Pump

1997 ◽  
Vol 119 (3) ◽  
pp. 191-195 ◽  
Author(s):  
S. P. R. Czitrom
Keyword(s):  
Numerical Model ◽  
Sea Water ◽  
Scale Model ◽  
Water Pump ◽  
Incoming Wave ◽  
Frequency Wave ◽  
Variable Volume ◽  
Mass Spring ◽  
Air Compression ◽  
Compression Chamber

A wave-driven sea-water pump which operates by resonance is described. Oscillations in the resonant and exhaust ducts perform similar to two mass-spring systems coupled by a third spring acting for the compression chamber. Performance of the pump is optimized by means of a variable volume air compression chamber (patents pending) which tunes the system to the incoming wave frequency. Wave tank experiments with an instrumented, 1:20-scale model of the pump are described. Performance was studied under various wave and tuning conditions and compared to a numerical model which was found to describe the system accurately. Successful sea trials at an energetic coastline provide evidence of the system’s viability under demanding conditions.

Study on 3-D Flow Field of Concrete Volute Conduit of Circulating Water Pump in Nuclear Power Plant

2011 ◽  
Vol 99-100 ◽  
pp. 350-353
Author(s):  
Xiao Bing Sun ◽  
Xu Bin Qiao
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Stokes Equations ◽  
Three Dimensional ◽  
Gradual Change ◽  
Water Pump ◽  
Pump System ◽  
Circulating Water ◽  
Operating Modes

As the largest unit capacity of nuclear power plant at present, the flow conduit of circulating water pump in EPR1750 nuclear power plant is a volute conduit, which is a cast-in-situ conceret structure with complexly gradual change cavity. Therefore, the hydraulic efficiency of circulating water pump is not only related with the design of pump leaves, but also closely related to the design of volute and the complicated spatial type of intake and outtake conduits. With the pump leaves and the intake and outtake conduits of conceret volute as the research model, based on computational fluid dynamics (CFD)and the three dimensional Reynolds averaged Navier-Stokes equations, an analytic model suitable for computation is established to simulate the three-dimensional steady flow in the whole pumping system under different operating modes. By use of the commercial fluid-computation softer ANSYS, the distribution of basic physic quantities in the fluid field inside the pump and the conduits is obtained. The analysis and prediction of the performance of pump system are made, and the spatial type design of intake and outtake conduits is evaluated. The calculation results can be referenced to improve the design of pump systems in the similar projects.

Effective Fuel Consumption by Improving Cooling Water Flow Rate in IC Engine

2015 ◽  
Vol 812 ◽  
pp. 112-117
Author(s):  
K.M. Kumar ◽  
P. Venkateswaran ◽  
P. Suresh
Keyword(s):  
Flow Rate ◽  
Cooling System ◽  
Water Flow Rate ◽  
Research Work ◽  
Cooling Water ◽  
Major Change ◽  
Clear Understanding ◽  
Water Pump ◽  
Ic Engine ◽  
Cooling Water Flow Rate

The coolant (water) pump assumes an important role of cooling system in IC engines. With upgrading of the engine power by turbocharging and turbo inter cooling, the water pump capacity needs to be increased corresponding to the power. This capacity enhancement has to be achieved without calling for a major change in the existing water pump, envelop and related fitment details. This requires a clear understanding of centrifugal pump for its performance parameter. One such engine is upgraded by turbocharging from 195PS to 240PS @2200 rpm. Improving water pump flow by changing the impeller dimensions, impeller casing, increase the suction, delivery pipe diameter had been done. Validation of the water pump in its actual engine installation was taken up as a part of the research work. Flow rate comparison of the new pump with the existing pump was made and the results were analyzed. The new water pump gives better flow rates for the engine speeds up to1800 rpm, beyond which the flow rate is slightly lesser than the existing pump.

Performance Research of Air-Cooled Heat Pump for Small Residential

2012 ◽  
Vol 516-517 ◽  
pp. 1180-1183
Author(s):  
Hui Fan Zheng ◽  
Chun Li Yang ◽  
Yan Hua Li ◽  
Yao Hua Liang
Keyword(s):  
Experimental Data ◽  
Heat Pump ◽  
Cooling Water ◽  
Cooling Capacity ◽  
Least Square ◽  
Outdoor Environment ◽  
Experimental Setup ◽  
Outlet Temperature ◽  
Pump System ◽  
Environment Temperature

An experimental setup is designed and built to study the operation characteristics of the air-cooled heat pump system for small residential in this paper. Based on the experimental setup, the characteristics of the energy efficiency ratio(EER) and cooling capacity have been researched when the outlet temperature of cooling water and outdoor environment temperature change. The experimental data demonstrate that the cooling capacity and EER of the system increases with increasing outlet cooling water temperatures and decreases with increasing outdoor environment temperatures. In addition, the correlation of the system EER is calculated by using the least square method based on the experimental data.

scholarly journals THE INFLUENCE OF FINISH TOOLING ON FRICTION PROPERTIES OF STEEL APPLIED TO SEA WATER PUMP SHAFTS

2014 ◽  
Vol 21 (2) ◽  
pp. 185-192
Author(s):  
Wojciech Labuda ◽  
Adam Charchalis
Keyword(s):  
Sea Water ◽  
Water Pump

Zero Emissions Vessels

2010 ◽  
Author(s):  
John W. Boylston ◽  
Bret S. Smart ◽  
John P. Wise
Keyword(s):  
Environmental Protection Agency ◽  
East Coast ◽  
Cooling Water ◽  
Exhaust System ◽  
Control Area ◽  
Concept Design ◽  
Truck Traffic ◽  
The Road ◽  
The Us ◽  
The Cost

This paper proposes a LNG-fueled coastal RO/RO for the East Coast of the US trade to meet upcoming Emission Control Area (ECA) requirements. The exhaust system for this vessel is proposed to be a wet system so there is no airborne emission. The CO2 remaining in the exhaust system is removed in the exhaust stream, and remaining exhaust components are combined with cooling water to provide a cooling effluent that meets Environmental Protection Agency (EPA) requirements. The concept design is carried to the point of determining operating economics, and the environmental effect of operating such ships is assessed as compared to conventional truck traffic. It was found that each ship will reduce East Coast highway truck traffic by over 1900 trucks per week. Since there are no emissions from the ship, each ship will also bring environmental advantages. It appears the ship would be economically competitive with conventional truck transport: the cost for transporting a single 53’ trailer via ship is roughly $996, compared to $1245 via truck. Furthermore, the proposed three vessel shipping service could potential-ly remove nearly 300,000 vehicles from the road annually.

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