Results 21 to 30 of about 208,857 (298)

New Design and Optimization of a Jet Pump to Boost Heavy Oil Production

open access: yesComputation, 2022
In the Oil and Gas industry, installing pipe loops is a well-known hydraulic practice to increase oil pipeline capacities. Nevertheless, pipe loops could promote an unfavorable phenomenon known as fouling.
Jens Toteff   +2 more
doaj   +1 more source

Modulation of annular fluid enhanced self-excited pulsed water jet and its coal breaking characteristics

open access: yesMeitan xuebao, 2023
There are some bottleneck problems in the pressure relief and antireflection technology of submerged water jet in a downward hole, such as weak impact force, low coal breaking efficiency, less coal cutting and poor adaptability.
Yanwei LIU   +8 more
doaj   +1 more source

Construção de um sistema simples e compacto de recirculação d'água sob pressão para trompa d'água Construction of a simple and compact system to recirculate water under pressure using a water-jet aspira tor pump

open access: yesQuímica Nova, 2009
Vacuum pumps are very useful in physical, chemical and biological experiments. In this communication it is described the design of a compact and low cost water recirculating system employing a water-jet aspirator pump as the vacuum source.
Dennis de Oliveira Imbroisi   +4 more
doaj   +1 more source

Sediment Removal from Deep Reservoir Dams by Suction and Jet Flow [PDF]

open access: yesE3S Web of Conferences, 2022
One method of sediment removal from dam reservoirs is the use of submerged pumps and suction mixes of sediment and water. This method is usually considered for shallow rivers but we want to adopt this method for large dams.
Kianmehr Ali Ahmad   +1 more
doaj   +1 more source

Experimental Study on Performance of Liquid–Gas Jet Pump with Square Nozzle

open access: yesEnergies, 2023
An experimental study is conducted to investigate the effects of different operating parameters on the performance of liquid–gas jet pumps. A square nozzle with an area ratio of 2.25 is designed for the liquid–gas jet pump, and an experimental setup for ...
Xin Xu   +7 more
doaj   +1 more source

Numerical studies for effect of geometrical parameters on water jet pump performance via entropy generation analysis

open access: yesJournal of Mechanical Engineering and Sciences, 2023
This paper presented an implementation of entropy generation analysis in the main flow field of a water jet pump via the CFD method. This study aimed to identify the inefficient location of energy conversion and to analyse entropy generation sources in ...
Muhammad Penta Helios   +1 more
doaj   +1 more source

Analysis of the Effect of in-Late Angle and Lower Valve Position in the Semi Jet Type Water Pump Installation Against Water Debit

open access: yesJurnal Serambi Engineering, 2023
The problem that often occurs in people who use semi-jet water pumps is that when the installation of the water pump has been completed, it turns out that the water discharge cannot flow as expected and the electricity consumption is quite large.
Heri Kustanto   +4 more
doaj   +1 more source

Development of Hybrid Airlift-Jet Pump with Its Performance Analysis

open access: yesApplied Sciences, 2018
A new pump, called the hybrid airlift-jet pump, is developed by reinforcing the advantages and minimizing the demerits of airlift and jet pumps. First, a basic design of the hybrid airlift-jet pump is schematically presented.
Dan Yao   +4 more
doaj   +1 more source

Cavitation in Water jet Pumps

open access: yesBulletin of JSME, 1979
Based on the similarity law of jet pump, a new cavitation parameter σ is proposed which has the similar meaning to Thoma's cavitation parameter in turbo pumps. The σ values are determined theoretically and presented as the function of specific speed nsj so that we may predict cavitation directly by using it in the designing. Experiments are carried out
Hiroshi NARUI, Shoichiro HARADA
openaire   +2 more sources

STUDY OF WATER JET PROPULSION SYSTEM DESIGN FOR FAST PATROL BOAT (FPB-60) [PDF]

open access: yesJournal of Defense Resources Management, 2018
FPB-60 is a type of patrol boat built by shipyard in Indonesia to strengthen the needs of water territorial. However, the 20 years age caused a decrease in performance of the vessel.
Arica Dwi SUSANTO   +4 more
doaj  

Home - About - Disclaimer - Privacy