Experimental Study on the Effect of Waste Valve Load and the Volume of Air Chamber on the Performance of the Hydraulic Ram Pump (Hydram) to Water the Paddy Field in Pakandangan, Padang Pariaman Regency

This 2019 DIPA Grand’s research designed and fabricated the size of hydraulic ram (hydram) pump utilized in Pakandangan, Padang Pariaman Regency. There is a water source in this area which has not been functioned adequately to irrigate the paddy field of 10 hectares due to the location of the paddy field which is higher than the water source. However, the use of designed hydram pump has no been maximized as the pump’s optimal performance was not determined yet. Therefore, a hydram pump was designed by varying the load of waste valve in the weight of 400 g, 600 g, 800 g, 1,000 g, and 1,200 gr. It was also varied in the volume of the chamber when the pump operated which were 4.86 lt, 5.76 lt, 6.48 lt, 7.29 lt, and 8.1lt. The height (Hd) of the inlet pipe was 1 m, and the lift height (Hs) of the outlet pipe was 5 m. The results obtained from Pump performance increases with increasing cylinder volume. The increase in the load of the exhaust valve volume of the tube remains a significant decrease. Hydram pump performance occurs at a load of 400 g with a tube volume of 8.1 l with an efficiency of 53%

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Experimental study on the thermal performance of multi-row helically coiled tube heat exchanger for surface water-source heat pump

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2018.12.129 ◽

2019 ◽

Vol 149 ◽

pp. 1274-1286 ◽

Cited By ~ 9

Author(s):

Chaohui Zhou ◽

Long Ni ◽

Ying Ke ◽

Yang Yao

Keyword(s):

Experimental Study ◽

Heat Exchanger ◽

Surface Water ◽

Heat Pump ◽

Thermal Performance ◽

Water Source ◽

Coiled Tube ◽

Tube Heat Exchanger ◽

Helically Coiled Tube

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Improvement of Pump Performance at Off-Design Conditions

Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery ◽

10.1115/85-gt-200 ◽

1985 ◽

Author(s):

J. Paulon ◽

C. Fradin ◽

J. Poulain

Keyword(s):

Experimental Study ◽

Flow Field ◽

Mass Flow ◽

Flow Characteristic ◽

Three Dimensional ◽

Operating Conditions ◽

Pump Performance ◽

Wide Range ◽

Mass Flows ◽

Design Value

Industrial pumps are generally used in a wide range of operating conditions from almost zero mass flow to mass flows larger than the design value. It has been often noted that the head-mass flow characteristic, at constant speed, presents a negative bump as the mass flow is somewhat smaller than the design mass flows. Flow and mechanical instabilities appear, which are unsafe for the facility. An experimental study has been undertaken in order to analyze and if possible to palliate these difficulties. A detailed flow analyzis has shown strong three dimensional effects and flow separations. From this better knowledge of the flow field, a particular device was designed and a strong attenuation of the negative bump was obtained.

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An experimental study of the effect of water bodies temperature on water heat pump performance

MATEC Web of Conferences ◽

10.1051/matecconf/201819401050 ◽

2018 ◽

Vol 194 ◽

pp. 01050 ◽

Cited By ~ 1

Author(s):

Amer Saloum ◽

Vyacheslav I. Maksimov

Keyword(s):

Heat Pump ◽

System Performance ◽

Formation Rate ◽

Water Source ◽

Ice Formation ◽

Pump Performance ◽

Effect Of Water ◽

Pump Station ◽

Negative Effect ◽

Heat Exchange Efficiency

The purpose of this research is to study the effect of water temperature change in the reservoir on water heat pump performance. An experimental analyse is done on the heat pump station which depends on water as a heat source. The experimental results confirm that the ice formation has a negative effect on the heat exchange efficiency, and the increase in water source temperature slow down the ice formation rate which causes an appositive effect on the system performance.

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