| Aluminum industry is the high-energy consumption industries with huge energy loss. Due to the increasing scale of China's electrolytic aluminum, to achieve energy-saving and emission-reduction by effective use of waste heat reduction becomes the primary objective in the present, among which Thermoelectric of the waste heat using in the aluminum tank is a very important technique.Thermoelectric technology is an energy conversion technology that transfer the heat directly into electricity, and it has obvious advantages in the use of such low-grade waste heat utilization as the aluminum heat.This paper adopts thermoelectric effect as the theoretical basis, according to the structural characteristics of an aluminum reduction cell wall, this paper researches on thermoelectric technology in the waste heat use of aluminum tank wall as the following:1. Based on the temperature and radiating characteristics of domestic aluminum cell 160kA, this paper conducts comprehensive feasibility analysis on the thermoelectric technology in the utilization of waste heat of aluminum tank;2. Via the Effect of the thermal magnetic semiconductors, the Experimental results demonstrate that the magnetic field did not influence power generation output of the temperature difference and also shows that shows the magnetic field of an aluminum reduction cell will not affect the performance of power generation of temperature difference equipment;3. By using a set of thermoelectric power generation device performance testing platform, suchBasic performance parameters as Sai Beike temperature coefficient, voltage characteristics, thermal conductivity are studied, according to which the merit factor Z of power device was calculated. The coefficient can accurately reflect the overall performance of thermal power generation device, and provide a reliable basis for selecting generating device of good performance. 4. Profound study was done through Experiments on the output characteristics of single thermal power devices:When the load resistance reaches the matching resistor, the maximum output is obtained. Based on the output characteristics of single chips, further study is done on the Series and parallel output characteristics, which shows that Series and parallel electrical output characteristics of power supply meet the string, parallel principle, and when the load matching, it can reach the maximum output power. This provide theoretical guidance to achieve high power output of power generation devicesAccording to the structural characteristics of domestic aluminum cell 160kA, the author devices corresponding cogeneration system and against the endotherm for heat sources, radiating for cold sources and other aspects of the case structure of, with a number of structural improvements and performance optimization, eventually the ideal power device with excellent performance is developed by he numerical simulation and experimental tests. Moreover, a full-featured, easy PC management software is developed for the Power generation system. Field test results indicates that the stability of power systems fully comply with requirements of industrial production, Long and stable operation of power generation system can be guaranteed and also can be used to meet the daily lighting and part of electrical needs. It fully shows that the thermal power generation used in waste heat in industrial applications will have broad prospects.
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