The Wireless Monitoring System of Solar Receiver
In solar thermal utilization technology, one needs to calculate the conversion efficiency and verify whether safety and durability meet the design requirements by monitoring solar receiving system, and improve the solar receiving system according to the experimental data. This paper introduces a system designed for performance detecting of non vacuum solar thermal receiving pipe and its high efficiency selective coating. The system mainly has three functions: 1. Monitor the selective absorbing of heat-receiving pipe, and evaluate the attenuation of coating structure properties, 2. To calculate the thermal power, and analyze receiver's thermal conversion efficiency, the medium's temperature in the exit of receiver should be monitored, 3. When the system is operating, monitor the temperature, pressure, medium's flow in the pipes and the liquid level in the tank. Estimate safety and durability of system.
Solar Thermal Power Generation Technology
Describes the classification of solar thermal power generation technology and its application prospect in our country.
Analysis of CSP plants for the definition of energy policies: The influence on electricity cost of solar multiples, capacity factors and energy storage
The effect on the cost of electricity from concentrating solar power (CSP) plants of the solar multiple, the capacity factor and the storage capacity is studied. The interplay among these factors can be used to search for a minimal-cost objective that can serve as a technical criterion to guide in the design of economic incentives for CSP plants. The probability-density function of irradiation is used in conjunction with screening models to evaluate the performance characteristics and costs of concentrating solar power plants. Two technologies have been analyzed in this study: parabolic-trough and tower plants. The results provide information to define the optimal operational range as a function of the desired objective. Thus, it is possible to derive a technical criterion for the design of CSP plants which optimizes the solar electricity produced and its generation cost. The methodology is applied to Spain, and the analysis of the results shows that a solar energy production of 37Â kWh/m2/year for tower plants and 66Â kWh/m2/year for parabolic-trough ones define the approximate optimal working conditions for the mean DNI in Spain.