基于单片机集成开发环境的丙烷燃气热电发电机热侧温度控制

F. Onoroh, Adeyinka Abdulquadri Oluwo, L. O. Agberegha
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引用次数: 0

摘要

热电发电机由串联的各种热电偶组成。当热电偶的连接处存在温度梯度时,就会产生电压。本研究在微控制器集成开发环境中建模、开发和测试了一种热电发电机,该发电机使用丙烷气体进行热侧温度控制,以保护模块免受过高温度的影响。利用MATLAB对模型进行求解,用温度梯度、冷热侧温度对发电机的性能进行图形化表示。热电发电机是使用10个SP-184827145-SA模块开发的。温度控制电路由ATMEGA32微控制器、DS18B30温度传感器、步进电机、计算机接口和电源单元组成,其唯一目的是调节气体供应,从而控制火焰温度。在热侧温度为120°C,冷侧温度为30°C的条件下,在300秒内获得的最大开路电压为25 V,效率为3.6%。实验还发现,温度梯度越大,产生的电压越高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Propane Gas Thermoelectric Generator with Microcontroller Integrated Development Environment Hot Side Temperature Control
A thermoelectric generator consists of various thermocouples arranged in series. A voltage is generated when a temperature gradient exists across the junctions of the thermocouples. This research modelled, developed and tested a thermoelectric generator with hot side temperature control using propane gas, in a microcontroller integrated development environment to protect the modules from excessive high temperatures. The models were solved using MATLAB for pictorial representation of the performance of the generator with temperature gradient, hot and cold side temperatures. The thermoelectric generator was developed using ten SP-184827145-SA modules. The temperature control circuitry consists of an ATMEGA32 microcontroller, DS18B30 temperature sensors, stepper motor, computer interface and power supply unit whose sole aim is to regulate the gas supply and hence control the flame temperature. The maximum open circuit voltage gotten was 25 V at 300 secs with hot side temperature of 120°C and cold side temperature 30°C, with an efficiency of 3.6%. It was also found out that the higher the temperature gradient the higher the voltage produced.
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