A solar cogeneration tube

Abstract

The invention discloses a solar co-generation tube, and belongs to the field of solar thermal power generation. The solar co-generation tube comprises a heat collection device and a power generation device. The heat collection device is partially made of quartz glass heat collection tubes which are widely used, the power generation device is made of semiconductor thermoelectric power generation materials, the cold ends of the materials make contact with heat conducting insulation materials on the inner side, the hot ends of the materials make contact with heat collection materials on the outer side, high and relatively-stable temperature difference provides temperature potentials required by power generation, the solar co-generation tube works under the temperature difference, and electric energy is obtained through the power generation device. The solar co-generation tube has wider adaptability and is simple in structure, low in cost and capable of substantially increasing the comprehensive utilization rate of solar energy.

Description

【Technical field】 [0001] The invention belongs to the field of solar thermal power generation, and in particular relates to a solar heat and power cogeneration tube, which can simultaneously supply domestic hot water and produce electric energy. 【Background technique】 [0002] Thermoelectric power generation uses the Seebeck effect to convert heat energy into electrical energy. When the two ends of a pair of thermoelectric batteries are at different temperatures, the thermoelectromotive force at both ends can be used as a power source. The most commonly used is a semiconductor thermoelectric battery, which is a DC power generation device made of a group of semiconductor thermoelectric batteries connected in series and in parallel. Each battery is composed of an N-type semiconductor and a P-type semiconductor connected in series. One end of the two is in contact with a high-temperature heat source, and the non-junction ends of the N-type and P-type semiconductors are in cont...

AI Technical Summary

Problems solved by technology

[0004] At present, solar energy is mostly used in the form of photovoltaics, which has low efficiency, and the few known photothermal methods also use the method of arranging PN semiconductor thermoelectric power generation materials on a plane. Affects power generation and the ground is completely out of sunlight, resulting in waste of cost, and will affect the original vacuum tube manufacturing process, requiring improvement of the manufacturing process, resulting in additional costs

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