solar energy
Research on Improved Low-temperature Solar Organic Rankine Cycle (ORC)
This paper deals with the low-temperature solar thermoelectricity conversion system based on the theoretical and experimental investigation of pure working fluid and zeotropic mixtures. The main objective is to clarify the influence degree of system performance for different working fluids by using regenerator, thereby enhancing thermal energy conversion efficiency.Firstly, the theoretical thermodynamic analysis is conducted [...]
Research on Hybrid System of Solar Energy Storage Using PCM and GSHP
High-grade thermal energy generated by heat pump elevating the low-grade geothermal energy using little electrical energy can be used to heat domestic space. The employment of solar energy as an auxiliary heat source during sunny days in Ground Source Heat Pump (GSHP) system can increase the evaporation temperature of the evaporator of heat pump unit [...]
Optimal Design of Solar Energy Refrigeration System with Larger Heat Source Temperature Difference
Computer optimization of solar energy refrigeration system can promote the performance of the unit, decrease the heat transfer area of the refrigerator and upgrade the operation coefficient of the system.In this paper, the solar energy refrigeration system with large heat source temperature difference is introduced.A thermodynamic and heat transfer calculation model of this kind of [...]
Optimal Design of Solar Energy Refrigeration System with Larger Heat Source Temperature Difference
Computer optimization of solar energy refrigeration system can promote the performance of the unit, decrease the heat transfer area of the refrigerator and upgrade the operation coefficient of the system.In this paper, the solar energy refrigeration system with large heat source temperature difference is introduced.A thermodynamic and heat transfer calculation model of this kind of [...]
The Design of 100kW Solar Energy Grid-connected Converter
With worldwide lack of energy sources and worsening of ecosystem environment, many countries around the world are actively searching for new energy sources that are inexhaustible and taintless. Solar source is much accounted of for its particular. Among the application of solar source, the grid-connected solar energy generates electricity system are turning to the main [...]
Eperimental Study and Construction of Solar Powerd Compression-Ejector Double-Stage Refrigeration System
As the increasingly growing of the social wealth, the problem of energy crisis and environmental deterioration become more and more serious. The solar energy has been paid more attention to in the world., which is a kind of cleanly and renewable resources that is inexhaustible and nexhaustible. The research on solar energy utilization has become [...]
Design and Realization of the Signal Phase Photovoltaic Grid-Connected Inverter
With growing depletion of the three traditional fossil energy,the utilization of the green energy including solar energy will get unprecedented development. Solar energy is one of the most clean regeneration energy resource,and its grid-connected system has been cared by the world.Photovoltaic grid-connected inverter is the core component of grid-connected PV system,it is particularly important to [...]
High-Efficiency Solar Photovoltaic System Design and Optimization Analysis
The problem of conventional energy crisis and environment in the world makes it necessary to exploit the renewable and green energy sources, in order to cover the future demands. Meanwhile, solar photovoltaic power has made great progress and become one of the most effective clean and renewable energy with the advance of solar cell and [...]
Numerical Simulation and Experimental Research of the Low Cost Solar Energy Accumulation Surface Spectral Radiance Characteristic
People attach important to solar energy because of the energy crisis and environment pollution.However,the heat flux of solar energy is low,which must be concentrated in order to obtain economic efficiency.In this paper,multi-spectral solar radiation transmission properties are studied when energy accumulation materials are damaged (roughness,deformation,aging,pollution).Then the solar energy accumulation material performance parameters are grasped.Monte Carlo [...]