Heat transfer by radiation Effect of different surfaces on heat transfer Features - effect of different surfaces on heat transfer by radiation - network capability: network access to ongoing experiments by any number of external workstations - GUNT software: operation and control of the experimental unit, data acquisition and educational software - E-Learning: multi-media didactic materials accessible online Learning objectives/experiments - verify Lambert’s inverse-square law - verify Stefan-Boltzmann law - verify Kirchhoff’s law - study transient behaviour - create power balances - produce logarithmic diagrams for evaluations - GUNT E-Learning -- multi-media online course, which enables learning independent of time and place -- access via Internet browser -- educational software including different learning modules -- course in the fundamentals -- detailed thematic courses -- check through targeted review of the learning objectives -- authoring system with editor that enables you to integrate your own, local content into the educational software Specification [1] part of the GUNT-Thermoline: Fundamentals of heat transfer [2] investigation of heat radiation on different surfaces heated by a concentrated beam of light [3] generation of the concentrated beam of light with a continuously adjustable halogen lamp and a parabolic reflector [4] different metallic specimens [5] thermopile on a movable carriage for measuring the heat radiation [6] display of temperature and radiation intensity in the software [7] due to integrated microprocessor-based instrumentation no additional devices with error-prone wiring are required [8] functions of the GUNT software: system operation, data acquisition, educational software [9] network capability: LAN/WLAN connection of any number of external workstations with GUNT software for observation and evaluation of the experiments [10] E-Learning: multi-media didactic materials accessible online [11] GUNT software for data acquisition via USB under Windows 10 Technical data Halogen lamp - electrical power 150W - max. temperature: approx. 460°C Aluminium specimens, Ø 20mm - 1x matt anodized on both sides - 1x painted on both sides (high-temperature paint) - 1x matt anodized with one painted side Copper specimens, Ø 20mm - 1x nickel-plated - 1x bright, oxidizes over time Stainless steel specimens, Ø 20mm - 1x bright, oxidizes over time due to high temperature Measuring ranges - temperature: 0...780°C - radiation intensity: 0...1250W/m2 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 670x350x370mm Weight: approx. 18kg