Operation between 80 ☌ and 100 ☌ will shorten the life of the device if you operate the device in that temperature range, do so for the briefest possible time.
Always monitor the temperature of the hot side when the peltier is operating in Heat Pump Mode. The temperature of this block can reach 90 ☌ or higher.ĭo not allow the peltier device to reach temperatures above 100 ✬. Do not touch the hot aluminum block when it is running in Heat Pump Mode. When there is a temperature difference across the peltier, it can be switched to Heat Engine Mode, in which spontaneous heat flow through the device generates an electric current. These blocks add thermal mass to the system and act as the traditional Hot and Cold Reservoirs. Aluminum blocks are fastened to each side of the peltier in thermal contact with the ceramic plates. As DC current passes through the device, it pumps heat from one side to the other. The Peltier Device is constructed of two ceramic plates with p and n semiconductors in between. Peltier Device with Hot and Cold Reservoirs
The following sections will familiarize you with the components of the experimental set-up.ġ. In addition to the experiments detailed here, the Thermoelectric board is well-suited for selfguided exploration. Experiment #5 is a DataStudio workbook, which contains the student instructions within the DataStudio file.
You can photocopy the student instructions or print them from the editable copy of this manual included on the CD-ROM. This manual includes instructions for five experiments with sample data and teachers’ notes. Using measurements from temperature, voltage and current sensors, students will quantitatively study the energy, work and heat flow associated with heat engines, heat pumps and refrigerators. The Energy Transfer–Thermoelectric circuit board provides students with a hands-on example of a thermoelectric heat engine. Please contact Tech Support, or see the PASCO catalog or website for details. There are other options for PASPORT ™ and ScienceWorkshop ® sensors and interfaces, and stand-alone multimeters. This is the equipment called for by the experiments in this manual and on the CD-ROM. PS-2135 Fast Response Temperature Probes (3-pack), optional.The most convenient combination of interface and sensors for use with the Thermoelectric circuit board is: Temperature Sensor(s), compatible with 10 kΩ thermistors Teachers’ Notes–Coefficient of Performance. Teachers’ Notes–Load Resistance and Efficiency. Teachers’ Notes–Conservation of Energy and the First Law of Thermodynamics. 4Ĭonservation of Energy and the First Law of Thermodynamics. ME-6988A Force Platform Structures Bracket.ME-6831 Ballistic Pendulum_Projectile Launcher.ME-6829 Mini Launcher Ballistic Pendulum.EZ-2341 Dissolved CO2 ezSample Field Titrator.EZ-2340 Alkalinity ezSample Field Titrator.EZ-2338 Total Hardness ezSample Field Titrator.ET-8782 Energy Transfer– Thermoelectric.ET-8775 Energy Transfer - Gearing Accessory.ET-8772 Energy Transfer - Hydro Accessory.ES-9060 Charge, Equipotential and Field Mapper.