Heat conduction experimental apparatus
This is a tabletop experimental device for comparing and verifying the thermal conductivity and heat transfer rates of various metals. The heat transfer experimental device consists of a heater power supply and a measurement data display unit, and experiments are conducted by attaching one of the optional items TD1002a to d (sold separately). The heat transfer experimental device (TD1002) supplies variable current to the heater of the optional device, and a safety switch prevents the heater from overheating. In the spare space on the right side of the device, an optional (sold separately) data automatic collection system (VDAS-F) can be installed, allowing for real-time collection and analysis of various data to a PC (sold separately) using the data automatic collection system.
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basic information
TD1002 Specifications Dimensions and Weight: 650mm × 480mm × H590mm, approximately 24kg Power Supply: AC100V/5A 50/60Hz Required Equipment: Water supply source with low impurities (tap water) at 5–15℃, drainage facilities *If the supply water temperature is above 15℃, please use cooled water from a cooling device, etc. Thermocouple Connection Ports: K-type thermocouple connection ports x 7 (resolution 0.1℃), accuracy ±0.3℃ Maximum Heater Output: 100W (resolution 0.1W) Maximum Heater Temperature: Approximately 100℃ (automatically stops at approximately 100℃) Operating Temperature Environment: +5℃ to +40℃
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Applications/Examples of results
Delivery achievements: Sophia University, Kochi University of Technology, Minami-Nagano Technical College, Suzuka National College of Technology, Nara National College of Technology.
Detailed information
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Independent input of calculation formulas and layout changes are possible. Reference screen of VDAS-F (sold separately) software.
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【TD1002a Linear Directional Heat Conduction Device】 This device measures the thermal conductivity of various metals using the temperature gradient method by reading the temperatures while conducting heat through standard and test samples in rod form. The device consists of three types of parts: an electric heater with three thermocouples, a water cooling system with three thermocouples, and a test specimen (middle section) with one thermocouple. Cold water is circulated through the water cooling system, and after adjusting the heater power until the device temperature reaches equilibrium, the temperature at which heat is transmitted through the rod is recorded. The area around the metal rod is insulated, reducing heat loss due to convection and radiation, allowing results to be obtained based on linear heat conduction theory.
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【TD1002b Radial Heat Conduction Device】 It consists of a disk test piece with an electric heater in the center (diameter 175mm, thickness 5mm) and cooling pipes flowing around it. The temperature distribution of the heat conducted radially from the heater at the center of the disk is measured. Cold water is circulated, and the heater power is adjusted until the device temperature reaches equilibrium, measuring the temperature transmitted from the heater to the outer circumference at seven locations on the disk using thermocouples. The area around the disk is insulated, reducing heat loss due to convection and radiation, allowing results to be obtained based on radial heat conduction theory.
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【TD1002c Enlarged Surface Heat Transfer Device】 It is a brass rod specimen (diameter 10mm, length 300mm) with an electric heater attached at one end. The rod is coated with a matte black finish to ensure that the emissivity has a consistent and predictable value. Heat is conducted along the rod and transferred to the surroundings through natural convection and radiation. The temperature of the rod's surface is measured using thermocouples arranged at equal intervals, allowing us to predict the temperature and heat flow along the rod based on the experimental results.
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【TD1002d Liquid and Gas Heat Transfer Device】 This device consists of three cylinders: an electric heater (heat source) cylinder at the center of the cylindrical tube, a cylinder surrounding it for filling with the test fluid (liquid or gas), and a cylinder for water cooling surrounding that. By adjusting the electric heater output and the cooling water circulation rate, it measures the heat loss of the liquid or gas. It measures and digitally displays the temperatures of the inner and outer walls of the test liquid or gas cylinder. The thermal insulation caps at both ends of the cylinder minimize heat loss, but by taking heat loss into account during measurement, the accuracy of the experiment can be improved.
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Company information
Megakemu designs, manufactures, and imports various experimental and practical equipment for universities, junior colleges, technical colleges, high schools, and vocational schools across the country. While the world has made advancements in various fields, it seems that our Earth's environment is being disrupted by ourselves and is approaching its limits. The world is seeking new Japanese technologies that coexist with the Earth's environment.
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