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.
Frequency selective surface design for blinds applications
In this paper, the reconfigurable blind structure with frequency selective surfaces(FSS) for the building applications are presented. Frequency transmission characteristics for different angles of the proposed blind-FSSs are investigated and verified through simulation and measurement. The simulation results show that we can implement the reconfigurable blind-FSS for multiband wireless applications. To verify the proposed paper, two kinds of blind-FSSs, crossed dipole FSS and circular ring FSS are fabricated and measurements are performed for different angles. The proposed structure in this paper which is very simple, can be easily applied to any planar surface for wireless security applications at low cost.