FREE and FORCED CONVECTION FROM FLAT, PINNED and FINNED PLATES Educational Equipment Thermal Transfer Experiment Equipment
H112P FREE and FORCED CONVECTION FROM FLAT, PINNED and FINNED PLATES Educational Equipment Thermal Transfer Experiment Equipment for college, vocational training center, university.
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H112P FREE and FORCED CONVECTION FROM FLAT, PINNED and FINNED PLATES Educational Equipment Thermal Transfer Experiment Equipment
A bench top accessory designed to allow students to experimentally investigate both free (natural) convection and forced convection.
The accessory includes a small, variable velocity wind tunnel with a digital velocity meter and a central aperture. Three plates with integral heaters and temperature sensors are also supplied that are designed to fit in the central aperture in the wind tunnel.
A heated flat plate with surface thermocouple may be directly compared with a similar pinned plate and finned plate also fitted with a surface thermocouple.
In addition to expanding understanding of the heat transfer enhancement from extended surfaces, the pinned and finned plates each have three thermocouples arranged at intervals along a fin and a pin. This allows investigation of the temperature distribution along the extended surfaces.
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investigation of the pressure losses of flow through pipes
– measurement of the pressure differential on different pipe sections
– influence of various pipe diameters
– influence of different materials and surface roughness
– effect of the flow velocity
– comparison between experiment and theory
Specification
[1] investigation of friction-induced pressure losses in flow through pipes
[2] pipe elements are commercially standard components in heating and sanitary engineering
[3] clear panel mounted on a sturdy, movable frame
[4] four measuring sections with different pipe crosssections and materials
[5] pipe sections can be selected via ball valves
[6] water connections made using quick-release couplings in the inflow and return
[7] flow can be adjusted via valves
[8] flow measurement using rotameter
[9] differential pressure measurement via differential pressure meter with display
Technical Data
Pipe sections measuring length: 1000mm
– pipe section 1: transparent plastic, diameter: 20×1,5mm
– pipe section 2: steel, diameter: 1/2″
– pipe section 3: copper, diameter: 18x1mm
– pipe section 4: copper, diameter: 15x1mm
Differential pressure meter
Measuring ranges- flow rate: 150…1600L/h- differential pressure: -350mbar…350mbar
Dimensions and Weight LxWxH: 1650x700x1850mm Weight: approx. 92kg
Required for Operation
Water connection: 1500L/h, drainCentral Geo Thermal Heating System Thermal Experiment Equipment
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“Specification
Function and operating behaviors of a modern heating system with digital heating controller
• Four-way mixer and three-way mixer
• Electric boiler
• 2 circulating pumps, 1 domestic water pump
• 4 different radiators and additional plate heat exchanger with shower system as domestic water consumer
• Colored pipes indicate heating feed and return
• Measurement of temperature, pressure and flow rate
• Boiler, 4 stages: 6/9/12/15kW,
• Max. Feed temperature: 95°C,
• Water tank capacity: 16 ltr
• Circulating pump 3 stages: 60W,
• Max. Flow rate: 60ltr/min,
• Max. Head: 4m
• Domestic water pump: 20W, max. 640ltr/h, max. 0.14bar
• Plate heat exchanger: 3kW, 10 plates
• Measuring ranges: temperature: 3x 20…120°C / 2x 0…120°C / 2x 0…100°C / 4x 0…80°C, pressure: 8x 0…2.5bar, flow rate: 100…1000ltr/h, water meter: 2.5m³/h
“• Manual with theory and experiments
• Size(LxWxH): 1500x900x1700mm
• Weight: 300Kg
a. Heat pump system
b. Compressor : 1HP
c. Condenser : Air-cooled type
d. Evaporator: pin, Tube air-cooled type
e. Evaporator
f. Expansion Valve : manual type
g. Liquid receiver : 1/2HP
h. Accumulator : 1HP
i. Electronic valve : 3/8” nut clamp type
j. Manometer
k. Fitting nipple
l. Sight Glass
m. Electric control module: DC24V
n. Thermostat range: -50℃‾100℃
o. Geothermal system
-Ground unit chamber
-Water unit chamber
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Specification
[1] investigation of the pipe friction in laminar or turbulent flow on Hydraulic Bench
[2] transparent tank with overflow ensures constant water inlet pressure in the pipe section for experiments with laminar flow
[3] water supply via Base Module ( Hydraulic Bench) or via laboratory supply for experiments with turbulent flow
[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″ –
Smooth-bore pipes of various diameters Size – 6mm , 10mm, 17mm
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
EXPERIMENTAL CAPABILITIES
Laminar to turbulent flow regimes in pipes
Energy losses in pipe fittings and bends
Flow measurement using venturi meter
Flow measurement using orifice plate
Use of pitot static tube
Use of manometerslosses in a pipe system Vocational Training Equipment Educational Equipment
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Learning Objectives / Experiments
– pressure curve in a closed pipe system with circulation pump
– influence of pipe diameter, flow velocity, change in
cross-section and pipe fittings on the pressure losses
– determination of pump characteristics, system characteristics and the operating point
Specification
[1] investigation of the pressure losses at contractions, pipe angles, pipe bends, valves and fittings and pipe elements of different diameter
[2] pipe elements are commercially standard components in heating and sanitary engineering
[3] clear panel mounted on a sturdy, movable frame
[4] closed water circuit with pump and tank
[5] integrated bleed valve on manometer and in the pipe section
[6] flow measurement using rotameter
[7] measurement of the pressure distribution at
13 pressure measuring points, display with 13 tube manometers
Technical Data
Pump – 3 stages – max. flow rate: 4,5m³/h – max. head: 6m
Tank: approx. 5L
Measuring range – flow rate: 100…1000L/h – pressure: 1600mmWC
Dimensions and Weight LxWxH: 1900x700x2020mm Weight: approx. 140kg
Required for Operation
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Specification
Training panel for investigating the thermal expansion of different pipe sections
• Length of each pipe section 1200mm
• Pipe sections can be selected by ball valves
• Water connections made using quick action hose couplings
• Operation with hot and cold water supplies
• Adjustment of the water temperature using mixing battery with thermocouple
• Temperature measurement using battery-operated digital thermometer
• Force measuring device to determine the expansion force
• Pipe section length: 1000mm
• Nominal diameters: – PVC, PE, Cu: DN15 – Cu: DN8 – Steel: 1/2″
• Mixing battery connection: 1/2″
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SR2022 Energy Efficiency in Refrigeration Systems Refrigerator Training Equipment
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Model: SR2022
Learning Objectives / Experiments
– Variables affecting energy efficiency
* controller parameters
* refrigerant supercooling
– Interconnected operation of compressors
– Operation of a multicompressor controller
– Methods for returning oil in a multicompressor refrigeration system
– Representation of the thermodynamic cycle in the log p-h diagramSpecification
[1] Refrigeration system in multicompressor operation to investigate energy efficiency
[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
Condenser with fan
– capacity: 4100W
– 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
Weight: approx. 300kg
Connections
400V, 50/60Hz, 3 phases