and the feature of charge capacity in accumulators have been tested through experiments, based on the integrated application system for water pumping, energy storage and illumination by photovoltaic pump, and in combination with composition and operation performance of photovoltaic water pumping system. Ac...
In order to study the energy consumption law of water-loop heat pump system under nonstandard conditions,the circulating water was selected as the research foundation and on the basis of the circulating water energy equations,the system energy consumption equations were built by using a linear trans...
Co–Mn spinel oxides are the most promising precious-metal-free catalysts for oxygen reduction in alkaline electrolytes, but their structure–activity properties are not yet fully understood. Now, in situ XRD and REXS performed on MnCo2O4identify surface tensile strain at low potentials and a reve...
A twin screw air compressor with water injection used for PEM fuel cell systems has been developed. A mathematical model simulating the working process of the water injection compressor has been established based on the conservation equations of energy and mass continuity. The internal leakage through...
North China University of Water Resources and Electric Power Researchers Release New Data on Energy Research (Research on the Internal Flow Characteristics of Pump Turbines for Smoothing the Output Fluctuation of the Wind-Photovoltaic …) 来自 国家科技图书文献中心 喜欢 0 阅读量: 30 摘要: By a ...
although much of the current activity is systems analysis and economic modeling with a focus on energy policy. The university houses the unique Engineering and Public Policy department in the College of Engineering[68]. There are also interests in coal tar and water interactions, as well as mathe...
In this paper, a model that optimal daily operation(without considering peak and valley price) of single adjustable-blade pump unit in the large pumping station along the Yangtze River is established. Where the minimum cost of energy consumption of single pump unit is set as the objective functi...
The status of electric heating drinking water boiler and the advantages of air source heat pump are analyzed,and the problems of making high temperature hot water with heat pump are discussed.Based on the idea of combining air source heat pump and electric heating drinking water boiler,a new ty...
2015, Renewable Energy Show abstract Performance investigation of a novel frost-free air-source heat pump water heater combined with energy storage and dehumidification 2015, Applied Energy Show abstract Influence of outdoor air conditions on the air source heat pumps performance 2014, Energy Procedia ...
The nuclear reactor coolant pump transferring heat energy inherently brings with it the unsteady flow and inevitably threatens to the safe operation of the pump unit, especially with the pressure pulsation induced by the rotor-stator interaction. In this paper, the characteristics of pressure pulsation...