
EXTENDED SURFACE HEAT TRANSFER MODULE Educational Equipment Thermal Laboratory Equipment
H112E EXTENDED SURFACE HEAT TRANSFER MODULE Educational Equipment Thermal Laboratory Equipment for college, vocational training center, university.
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H112E EXTENDED SURFACE HEAT TRANSFER MODULE Educational Equipment Thermal Laboratory Equipment
A small scale bench top accessory designed to measure the temperature profile and heat transfer along a horizontal extended surface (cylindrical pin). A small diameter uniform rod is heated at one end and heat flowing along the rod by conduction is lost to the surroundings by a combination of natural convection and radiation. The resulting heat transfer gives a temperature profile that may be investigated and predicted by conventional analysis.
The apparatus consists of a solid cylindrical matt black brass bar supported in a frame and heated at one end. At intervals from the heated end are eight thermocouples recording the surface temperature so that a temperature profile along the bar may be developed. An additional thermocouple records the ambient temperature.
The heater is located inside an insulated cylinder at one end of the apparatus. The heater input power is controlled through the variable 240v ac supply from the Heat Transfer Service Unit H112 and is designed to operate at up to 20 Watts.
All instrumentation and power supplies plug directly into the Heat Transfer Service Unit H112 and readings are displayed on digital panel meters.
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3 compressors
– refrigeration capacity: each 1584W at -10°C/55°C
– power consumption: each 1156W at -10°C/55°C
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– capacity: 4100W
– air flow: 1250m³/h
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– 4kW at ΔT=9K; 0,6m³/h glycol-water mixture
Glycol-water mixture pump
– max. flow rate: 5m³/h
– max. head: 6m
Heater power: 3kW
Tank
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– refrigeration circuit receiver: 5,8L
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– temperature: 4x 0…100°C, 4x -100°C…100°C
– pressure: 1x -1…9bar, 1x -1…24bar
– flow rate: 1x 1..25L/min
– compressor power: 0…4995W
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Pipe and Fittings
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I.Production profile
The key feature of plate heat exchangers is their compact design, in which optimum use is made of all of the material for heat transfer. The pressed in profile on the plates creates narrow flow channels, in which significant turbulence occurs. The turbulent flow allows effective heat transfer even with low flow rates and also has a self-cleaning effect. Plate heat exchangers are used in the food industry, offshore technology, refrigeration and domestic engineering.
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[5] recording of temperature
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c. Condenser : Air-cooled type
d. Evaporator: pin, Tube air-cooled type
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