Cost comparison: engines vs. electric motors for irrigation pumping

Irrigation Pumping Plant Efficiency

Rising energy costs have increased the cost of pumping to the point that many farmers are finding irrigation to be unprofitable or only marginally profitable. Fortunately, however, pumping costs are an item that farmers have some degree of control. Pumping costs often are higher than they need be for two reasons: 1.) more water is pumped than is necessary, and/or, 2.) the pumping plant operates...

Comparison of air-driven vs electric torque control motors on canal centering ability by ProTaper NiTi rotary instruments.

AIM Cleaning and shaping is one of the most important phases in root canal therapy. Various rotary NiTi systems minimize accidents and facilitate the shaping process. Todays NiTi files are used with air-driven and electric handpieces. This study compared the canal centering after instrumentation using the ProTaper system using Endo IT, electric torque-control motor, and NSK air-driven handpiece...

Sizing and Implementation of Photovoltaic Water Pumping System for Irrigation

Received Nov 27, 2017 Revised Jan 25, 2018 Accepted Feb 26, 2018 Solar photovoltaic systems convert energy of light directly into electrical energy. This work presents, a process to compute the required size of the standalone solar photovoltaic generator based water pumping system for an existing area. In addition solar photovoltaic generator is connecting voltage source inverter fed vector con...

Stirling Engines for Distributed Low-Cost Solar-Thermal-Electric Power Generation

Due to their high relative cost, solar-electric energy systems have yet to be exploited on a widespread basis. It is believed in the energy community that a technology similar to photovoltaics, but offered at about $1/W, would lead to widespread deployment at residential and commercial sites. This paper addresses the feasibility study of a low-cost solar-thermal electricity generation technolog...

Electric Motors and Drives This Page Intentionally Left Blank Electric Motors and Drives