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 Products  |  Thermodynamics, Heating and Sanitary Systems  |  Fundamentals of Thermodynamics  |  WL 375
 Technical Description
In this benchtop unit, a metal test bar is clamped between a heater and a Peltier element as the cooler. The complete arrangement is under an evacuated bell jar. In this way errors due to convection can be ignored and all the heat must flow through the test bar. The thermal conductivity can be calculated from the temperature difference between the hot and cold end and the heater power. The housing contains the vacuum pump and the digital displays.
Learning Objectives / Experiments
· Determination of thermal conductivity for various materials
· Thermal energy balance of heat source and heat sink
 Features
Linear heat conduction in metal specimens
PC data acquisition
Simple and clear layout of the system
Experiments are visible under a glass cover
 Alternative products
WL 372 -- Heat Conduction Unit / PC
WL 374 -- Heat Conduction in Solids
WL 376 -- Thermal Conductivity of Building Materials
WL 900 -- Heat Conduction Trainer
 Specification [1] Unit to study linear thermal conduction in metal specimens under vacuum [2] Galss bell, diaphragm pump and manometer to generate a vacuum [3] Heater 1.5W [4] Peltier element as cooler [5] Specimens made of stainless steel, brass, aluminium, copper [6] PC data acquisition with LabView software under Windows NT/2000/XP [7] Digital displays for temperatures, current, voltage [8] 230V, 50/60Hz, 1 ph. or 120V, 60Hz, 1 ph. [9] lxwxh: 600x490x580mm, 27kg Technical Data Diaphragm pump, 90W: vacuum max. 10mbar abs., pmax: 3bar, Qmax: 6ltr/min Heater: 1.5W Peltier element 8.5W, temp. difference: 70K Manometer -1...0bar Specimens: Ø5x128mm, 80mm measured length, material: stainless steel, brass, aluminium, copper System requirements: PC with Pentium III 600MHz, 1 PCI slot, 100MB free hard disc space, graphics card resolution 1024x768 pixel, true color Dimensions and Weight l x w x h : 600 x 490 x 580 mm Weight : approx. 27 kg Connections 230V, 50/60Hz, 1 ph. or 120V, 60Hz, 1 ph. Scope of Delivery 1 complete unit, 1 data acquisition card with software, 4 specimens, 1 tube with heat-conductive paste, 1 instruction manual Order Details 060.37500 WL 375 Advanced Conduction Unit