The heat extracted is transferred to the hot reservoir, together with heat generated by the electrical supply to the peltier device. This heat is removed by a water-cooled heat exchanger. The flow rates can be adjusted to provide a range of operating temperatures. By varying the electric power into the system, the behaviour of the system at different operating points and temperatures can be established. The thermo-electric Peltier device is positioned in a heat transfer path, between two copper blocks, extracts heat from one block (cold reservoir) and transfers it to the other block (hot reservoir). In order to measure the heat transfer rate, the cold reservoir is fitted with an electric heater.
Instrumentation is provided to measure the temperatures of the blocks, the electric power supplied to the Peltier device, the cooling water flow rate and the cooling water temperature rise.
The Peltier device can also be used to generate a small quantity of electric power when a temperature difference is applied. This effect can also be demonstrated. The heater power is measured , and so it is possible to establish a complete energy balance for the system.
Complete Vergnet hydro-pump, but supplied with 20 metres each of complete pressure (command/transmission) and riser (discharge) pipes.
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Complete Vergnet hydro-pump; hydraulic transmission, foot operated and multi-operator pump type, supplied with 80 metres each of complete pressure (command/transmission) and riser (discharge) pipes.
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Complete Vergnet hydro-pump, type HPV 60-2000, but supplied with 55 metres each of complete pressure (command/transmission) and riser (discharge) pipes.
Foot pump, for 55 metres installation depth.
Supplied with
1 x pump barrel
1 x command hose
1 x lower pumping element, stainless steel
1 x delivery hose
1 x base plate with sealing pins
1 x command cylinder, stainless steel
1 x pack of clips
1 x tool kit
1 x installation manual
1 x maintenance manual.
Complete hydro-pump, but supplied with 40 metres each of complete pressure (command/transmission) and riser (discharge) pipes.
Supplied with:
1 x pump barrel
1 x command hose
1 x lower pumping element, stainless steel
1 x base plate with sealing pins
1 x command cylinder, stainless steel
1 x installation manual
1 x maintenance manual
1 x delivery hose
1 x pack of clips
1 x tool kit.
Complete Vergnet hydro-pump; hydraulic transmission, foot operated and multi-operator pump type, supplied with 60 metres each of complete pressure (command/transmission) and riser (discharge) pipes.
Supplied with
1 x pump barrel
1 x lower pumping element, stainless steel
1 x delivery hose
1 x pack of clips
1 x base plate with sealing pins
1 x command cylinder, stainless steel
1 x command hose
1 x maintenance manual
1 x installation manual
1 x tool kit.
The product structure is a double cylinder type, which is mainly composed of a box body, a double cylinder system, a hand wheel and a rubber tube.
Size: 250*210*265mm, The limit of suction pressure is less than 60KPa
The unit consists of four different types of pump namely-centrifugal, turbine, reciprocating and axial flow pumps and a common storage tank, measuring instruments. Compact Multi Pump Test Set Inverter Speed Control is a compact self contained set for studying the characteristics for various types of pumps. By manipulating flow control valves and a selector switch, each pump can be operated individually. The unit is floor standing with removeable supports. Speed control is by an advanced inverter.
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The refrigeration circuitry includes a water cooled condenser complete with isolating valves, manual expansion valve, evaporator, variable area flowmeter for mass flow of refrigerant, filter/drier unit, sight glass and over pressure cut-out for unit protection. The unit is designed to use Tetrafluoroethane as the refrigerant with a twin cylinder reciprocating compressor, belt driven by the variable speed dynamometer.
The evaporator coil is mounted in an electrically stirred water/glycol mixture contained in a thermally insulated, stainless steel tank. The water/ glycol mixture is protected from over temperature conditions by a thermostat should the heater should be left on when the compressor is not circulating refrigerant. Heating of this water/glycol mix is infinitely variable enabling balanced experimental conditions over a wide range of temperatures to be obtained.
Experimental Capabilities:
Determine the Mechanical, Thermodynamic (Isentropic) and Volumetric efficiencies.
Estimate the rate at which heat is transferred to the system from the surrounding environment.
Determine the energy flows and coefficient of performance for given operating instructions.
Operate the refrigeration unit over a range of conditions.
Estimate the Heat Transfer Coefficient.
Compile an energy balance under light load and full load conditions.
Examine the behaviour refrigerating cycle under variable loads and speeds.
High-speed straight joint rotary vane pump.
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The unit consists of four different types of pumps namely-centrifugal, turbine, reciprocating and axial flow pump, a common storage tank, and measuring instruments. Each pump is driven by a motor dynamometer for measuring TRUE pump input power. Multi Pump Test Set, Motor Dynamometer is a self contained set for studying the characteristics for various types of pumps. Speed control is by an inverter. The unit is floor standing with removeable supports. By manipulating flow control valves and a selector switch, each pump can be operated individually.
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The unit consists of a storage tank and a centrifugal pump with a motor dynamometer on a steel base for measurement of TRUE pump input power, and measuring instruments. Mini Centrifugal Pump Test Set Motor Dynamometer is a self contained bench top unit for studying the centrifugal pump characteristics. Speed control is by an inverter.
Experiments:
Pump input, output and true efficiency at various speeds.
Flow rate vs head at various speeds.
The Demonstration Unit Heat Pump Shows the Operation of a Heat Pump - Air and Water. This Comprehensive Training Equipment, Students Will Be Able to Study the Use of Energy From the Environment to Heat Water. The Refrigerant Absorbs the Ambient Heat Through the Fan of the Evaporator, and There After, This Heat is Transferred to the Water in the Condenser. With The Hot Water Storage Tank is Equipped With Internal Heat Exchanger, Which Can Be Connected to the Energy Exchange With the Flow of Running Water. The System Consists of Compressor,circulation Valve, the Flow Control Valve, The storage, Condenser, Filter and Dryer, Regulator and Evaporator With Fan, Water Flow Meters,temperature and Pressure Sensors With Display in the Key Points of the Circuit.
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The unit consists of a storage tank and a gear pump with a motor on a steel base, and measuring instruments. It is to be used with oil or glycol. Compact Gear Pump Test Set is a self contained bench top unit for studying the gear pump flow rate vs head at a fixed speed.
Experiments:
Flow rate vs head.
The Turbine Pump Demonstration Unit consists of an industrial turbine pump with a motor, a PVC storage tank on a steel base, software and sensor. Turbine Pump Demonstration Unit is a bench top unit for studying the turbine pump characteristics with data display and analysis by computer.
Experiments:
Pump input, output and overall efficiency at various speeds.
Flow rate vs head at various speeds.
Oil separator with tank on the delivery side of the rotary vane pump
Vacuum generation with a rotary vane pump
Manometer to display the pressure in the vessel
2 silencers to reduce flow noise
1 inlet line with needle valve, 1 inlet line with needle valve and flow meter on the pressure vessel for Simulation loads and leaks.
Vacuum generation in a steel pressure vessel.
The Reciprocating Pump Demonstration Unit consists of an industrial reciprocating pump driven by a reduction gear and motor, a PVC storage tank, sensors, and software. Reciprocating Pump Demonstration Unit is a self contained unit for studying the reciprocating pump characteristics with data display and analysis by computer. It is to be used with Pump Instrument Box is required but separately supplied. The unit is on a steel base.
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Flow setting by manual stroke length adjustment (including during operation)
Manual drive with crank instead of a drive motor
Learning concept for maintenance and repair exercises on a single-diaphragm pump
The kit forms part of the GUNT assembly, maintenance and repair practice line
Diaphragm and push rod directly linked
Pump parts and tools housed in a tool box.
The unit consists of a storage tank and a centrifugal pump with multi speed motor on a steel base, and measuring instruments. Compact Centrifugal Pump Test Set Multi SpeedCompact Centrifugal Pump Test Set Multi Speed is a self contained bench top unit for studying the centrifugal pump flow rate vs head at three different speeds.
Experiments:
Flow rate vs head at three different speeds.
