研究目的
Investigating the performance of an unconcentrated photovoltaic-thermoelectric generator (PV-TEG) hybrid system under tropical climate conditions for indoor farming applications.
研究成果
The PV-TEG hybrid system demonstrated the ability to provide sufficient power for indoor farming applications under tropical climate conditions. The addition of TEGs to the PV system showed a slight improvement in efficiency under certain weather conditions, though the primary power output was still dominated by the PV panels. The study suggests that further optimization, such as incorporating heat sinks or using better semiconductor materials, could enhance the system's performance.
研究不足
The study was limited by the specific weather conditions of Malaysia, the types of PV and TEG modules used, and the configuration of the hybrid system. The power output from TEGs was significantly lower than that from PV panels, indicating a need for further optimization of the hybrid system.
1：Experimental Design and Method Selection:
The study designed a PV-TEG hybrid system based on the load requirement of an indoor farm, investigating its performance under Malaysia’s weather conditions over three months. The methodology included the integration of PV panels and TEGs, with TEGs attached behind the PV panels to utilize excess heat for additional electricity generation.
2：Sample Selection and Data Sources:
The experiment was conducted using a functional prototype of the hybrid system, with data collected over three months (December, February, and March) to account for varying weather conditions.
3：List of Experimental Equipment and Materials:
Equipment included PV panels (model: ADL100–12V), TEGs (model: SP1848–27145), batteries (model: PGEL 100–12), LED lights for indoor farming, and a solar charge controller. Temperature and power output data were collected using a maximum power point tracker (MPPT) solar charge controller and a NI-USB-6211 data acquisition device (DAQ).
4：Experimental Procedures and Operational Workflow:
The PV panels and TEGs were placed outdoors, while other equipment was placed indoors. The system's performance was monitored, including power output, battery state of charge, and temperature differences.
5：Data Analysis Methods:
The efficiency of the PV, TEG, and hybrid system was calculated based on power output and solar irradiance. The effect of TEG connections on power output was analyzed.
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