- Description
- Inquiry
HM282 Experiments With An Axial Fan Vocational Training Equipment Heat Transfer Training Equipment
- Description
- Axial fans are used to transport gases. The medium to be transported is drawn in axially to the drive shaft of the axial fan by the rotation of the rotor. The medium flows through the rotor and is discharged axially behind the rotor.
- The experimental unit provides the basic experiments to get to know the operating behaviour and the important characteristic variables of axial fans.
- HM 282 features an axial fan with variable speed via an integrated controller, an intake pipe and a delivery pipe. The transparent intake and delivery pipes are fitted with guide plates for flow guidance. A flow straightener in the intake pipe serves to calm the air. This enables precise measurements even with heavily reduced operation. The air flow is adjusted by a throttle valve at the end of the delivery pipe.
- The experimental unit is fitted with sensors for pressure and temperature. The flow rate is determinated via differential pressure measurement on the intake nozzle. The microprocessor-based measuring technique is well protected in the housing. The measured values are transmitted directly to a PC via USB where they can be analysed using the software included.
- All the advantages of software-supported experiments with operation and evaluation are offered by the software and the microprocessor.
- Specification
- functioning and operating behaviour of an axial fan
- axial fan with electronically commutated drive motor
- variable speed via integrated controller
- transparent intake and delivery pipes
- throttle valve to adjust the air flow in the delivery pipe
- determination of flow rate via intake nozzle
- display of differential pressure, flow rate, speed, electrical power consumption and hydraulical power output, temperature and efficiency
- due to integrated microprocessor-based instrumentation no additional devices with error-prone wiring are required
- display and evaluation of the measured values as well as operation of the unit via software
- software with control functions and data acquisition via USBunder Windows 8.1, 10
- Technical data
- Intake pipe
- inner diameter: 110mm
- length: 275mm
- Delivery pipe
- inner diameter: 110mm
- length: 310mm
- Axial fan
- power consumption: 90W
- nominal speed: 9500min-1
- volumetric flow rate: approx. 600m3/h
- pressure difference: approx. 700Pa
- Measuring ranges
- differential pressure: 0…1800Pa
- flow rate: 0…1000m3/h
- temperature: 0…100°C
- speed: 0…9999min-1
- power consumption: 0…500W
- 230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
UL/CSA optional - Dimensions and weight
- LxWxH: 670x340x370mm
Weight: approx. 15kg
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• Four-way mixer and three-way mixer
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• 2 circulating pumps, 1 domestic water pump
• 4 different radiators and additional plate heat exchanger with shower system as domestic water consumer
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• Boiler, 4 stages: 6/9/12/15kW,
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• Water tank capacity: 16 ltr
• Circulating pump 3 stages: 60W,
• Max. Flow rate: 60ltr/min,
• Max. Head: 4m
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“• Manual with theory and experiments
• Size(LxWxH): 1500x900x1700mm
• Weight: 300Kg
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h. Accumulator : 1HP
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l. Sight Glass
m. Electric control module: DC24V
n. Thermostat range: -50℃‾100℃
o. Geothermal system
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[2] Refrigeration circuit with 3 compressors connected in parallel, condenser, thermostatic expansion valve and coaxial coil heat exchanger as evaporator
[3] Heat exchanger for refrigerant supercooling can be added via valves
[4] Glycol-water circuit includes pump and tank with heater serving as cooling load at the evaporator
[5] Multicompressor controller for the parallel operation of the compressors
[6] Separation of oil from the refrigerant on the delivery side and return to the intake side of the compressors
[7] Fan at the condenser with adjustable speed
[8] LabVIEW software for data acquisition via USB under Windows XP or Windows Vista
[9] Refrigerant R134a, CFC-free
Technical Data
3 compressors
– refrigeration capacity: each 1584W at -10°C/55°C
– power consumption: each 1156W at -10°C/55°C
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– air flow: 1250m³/h
Coaxial coil heat exchanger capacity
– 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
– glycol-water mixture: 23L
– refrigeration circuit receiver: 5,8L
Measuring ranges
– 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
Dimensions and Weight
l x w x h: 1800x700x1900mm
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Specification
[1] investigation of the pipe friction in laminar or turbulent flow on Hydraulic Bench
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[4] flow rate adjustment via valves
[5] twin tube manometer for measurements in laminar flow
[6] dial-gauge manometer for measurements in turbulent flow
[7] flow rate determined by base module Hydraulic Bench
[8] water supply using base module ( Hydraulic Bench) or via laboratory supply
* Diameter of test pipe : 3.0mm ( Bore)
* Length of test pipe : 524mm
* Needle Valve included to regulate flow rate
length: 1000mm – Pipe section 1: acrylic 20×1.5mm – Pipe section 2: steel 1/2″ –
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Overall dimensions:
* Height : 1.05m form the ground level
* Width : 2.25m
* Depth : 0.43m
Test Pipe Diameters:
The Pipe network should have 90° Bends, 90° elbow,90°T, 45°elbow & Y.
Sudden enlargement
Sudden contraction
Ball Valve
Gate Valve
Globe valve
Inline strainer
Venturi made of clear acrylic
orifice palte made of clear acrylic
Pitot Static tube section made of clear acrylic
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Laminar to turbulent flow regimes in pipes
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[4] operating mode (parallel flow or counter flow) selectable via valves
[5] flow rates adjustable via valves
[6] electromagnetic flow meter
[7] digital displays for temperature, pressure differences and flow rate
[8] hot & cold water benches available for
independent operation
[9] water/steam heat exchanger unit and electrical steam
Generator available for further experiments
[10] software for data acquisition via USB under Windows Vista or
Windows 7
Technical Data
Plate heat exchanger, 10 plates
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– capacity: 15kW
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– heat transfer surface area (coil): 0,17m²
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– max. flow rate fan: 780m³/h
– max. pressure difference fan: 430Pa
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– heat transfer surface area (coil): 0,17m²
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– differential pressure air: 0…10mbar
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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.
II.Equipment feature
The SR1158E Plate Heat Exchanger is part of a series of units enabling experiments to be performed on different heat exchanger types. The experimental unit is ideally suited for investigating the functioning and behaviour of a plate heat exchanger in operation.
The plate heat exchanger is made up of profiled plates with water flowing through the spaces between them. The plates are soldered in such a way that two separate flow channels are formed. These are one “cold” and one “hot” flow channel, in an alternating arrangement. Part of the thermal energy of the hot water is transferred to the cold water. Valves on the supply unit are used to adjust the flow rates of hot and cold water. The supply hose can be reconnected using quick-release couplings, allowing the flow direction to be reversed. This allows parallel flow or counter flow operationspecification
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[3] parallel flow and counterflow operation possible
[4] six soldered plates
[5] recording of temperature
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6 plates, stainless steel
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Weight: approx. 3kg
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