Quick test device and method for performances of trough type solar thermal collector

Abstract

The invention discloses a quick test device for performances of a trough type solar thermal collector, which comprises a fuel tank, a valve arranged at the port of the fuel tank, a fuel pump, a thermal collector, a heat interchanger, a vapor tank, an expansion tank, a water pipe and a direct radiometer which is fixed with the thermal collector in the same direction, wherein the focusing point of the thermal collector is provided with a thermal collecting pipe; the fuel tank is filled with heat conducting fuel; the thermal collector, the heat interchanger and the expansion tank are connected bypipelines in sequence to form a loop; the thermal collecting pipe is connected on the left of the valve, and the expansion tank is connected on the right thereof; and the water pipe and the vapor tank are respectively connected at the inlet and the outlet of the heat interchanger. The quick test device has the advantages of simple and easily-implemented structure and capability of realizing quicktest of performances of the thermal collector. The invention also discloses a quick test method for the performances of the trough type solar thermal collector.

Description

【Technical field】 [0001] The invention relates to a heat energy testing device and a testing method, in particular to a rapid testing device and a method for the performance of a trough solar heat collector. 【Background technique】 [0002] Existing test methods for solar collectors are based on steady-state testing techniques, and the test content includes the steady-state or quasi-state instantaneous efficiency of the collector and the heat loss coefficient of the collector. The steady-state test technology has high requirements on meteorological parameters, so it can only be tested indoors with optical equipment. However, in practice, solar collectors work outdoors, and the actual environment will inevitably cause the test results to be inconsistent with the test results simulated indoors. Therefore, there is an urgent need for a means that can be tested outdoors. At present, there are related test devices abroad, such as the trough solar test device of ENEA in Italy, but...

AI Technical Summary

Problems solved by technology

The steady-state test technology has high requirements on meteorological parameters, so it can only be tested indoors with optical equipment.

However, in practice, solar collectors work outdoors, and the actual environment will inevitably cause the test results to be inconsistent with the test results simulated indoors.

Therefore, there is an urgent need for a means of testing outdoors. At present, there are related test devices abroad, such as the trough solar test device of ENEA in Italy, but the test equipment is more complicated and expensive, and it cannot achieve the purpose of rapid measurement.

Images