Thermoelectric Power Generation Semiconductor Power Generation Experimental Demonstration Energy Conversion Teaching Instruments Product overview This compact teaching instrument demonstrates thermoelectric principles in both directions: temperature difference generating electric current and electric current producing a temperature difference. It is built for classroom experiments, laboratory demonstrations, and handson learning about energy conversion. Key features and components Two aluminum plates form the main hot and cold contact surfaces for reliable thermal conduction. A cooling plate is positioned between the aluminum plates to establish a controllable temperature gradient. A small fan provides active cooling to help maintain the gradient and improve stability during experiments. Two output terminals allow connection to meters, small loads, or external circuits for measurement and demonstration. Includes two clear plastic cups to help concentrate hot or cold sources and to improve conversion rates by stabilizing the temperature interface. Overall size approximately 56*58*255mm/2.20*2.281cm, compact and portable for classroom use. Key benefits Clear demonstration of core thermoelectric effects: Students can observe how a temperature difference produces a voltage and how driving a current produces heating or cooling, reinforcing theoretical concepts with practical evidence. Practical and handson learning: Terminals and a simple assembly make it easy to connect meters, LEDs, or small loads for immediate feedback in experiments. Improved experimental stability: The integrated cooling plate, fan, and plastic cups help control and maintain temperature gradients, leading to more consistent results and better reproducibility. Durable and classroomfriendly construction: Aluminum plates provide effective thermal contact and ruggedness for repeated educational use. Function and performance notes Demonstrates both the effect of temperature difference generating current and the reverse effect of current generating temperature difference for direct comparison in the same setup. The cooling plate and fan assist heat removal on the cold side, while the aluminum plates provide good thermal conduction on both sides. The two plastic cups can be used as small reservoirs for hot or cold fluids or as insulating spacers to increase the temperature differential and improve conversion performance. Compatibility and connections Two terminals are provided for straightforward connection to measurement tools, data acquisition equipment, or small demonstration loads. Designed for educational and experimental use with common lowvoltage instruments and lab meters. Suggested use scenarios Classroom demonstration: Use heat sources and the included plastic cups to create a temperature gradient and show students the voltage produced across the terminals, then reverse the experiment by applying a small current to observe cooling or heating at the plates. Laboratory experiment: Integrate into a laboratory exercise for physics or electrical engineering courses to quantify the relationship between temperature difference, voltage, and current, and to explore energy conversion efficiency with controlled variables. Science fair or outreach demo: Portable size and visible effects make it suitable for public demonstrations and handson exhibits to explain thermoelectric energy conversion concepts. What it is for Teaching and demonstration of thermoelectric principles. Handson experiments for students and hobbyists studying energy conversion. Basic lab setups where a compact, easy to connect thermoelectric demonstrator is required. Contents Thermoelectric demonstration unit with two aluminum plates, central cooling plate, small fan, and two terminals. Two clear plastic cups for improved conversion and experimental flexibility. This instrument provides a straightforward, durable platform to explore semiconductor thermoelectric effects in an educational setting while offering practical features to stabilize experiments and make observations repeatable.