One circulation pump and one safety module each with expansion vessel for heating and brine circuit
Heat pump for the module system
Sensors for temperature, flow rate and pressure with connection to the controller
Connections for various heat sources and sinks.
A front panel with mimic diagram and instrumentation allows to keep the most significant thermodynamic quantities undercontrol, so facilitating the students understanding and the teachers task. The Heat Pump Study Unit Air and Water is an extremely easy-to use and functional unit designed to allow the understanding of the theoreticalprinciples governing the frigorific cycles with heat pump. The unit is supplied with manuals which describe the components, the installation and utilization procedures as well as manyexercises with experimental results. The unit allows the cycle inversion, too.
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Refrigeration circuit with compressor, evaporator with fan, thermostatic expansion valve and coaxial coil heat exchanger as condenser
Record of all relevant measured values and display directly at the location of measurement
Hot water circuit with pump, tank and condenser as heater
Additional cooling via pipe coil in the hot water tank and external cooling water
Investigation of a heat pump with a water circuit as load.
The Heat Pump with Dual Mode Evaporator Training Bench comprises a hermetic piston compressor with integrated oil cooler and a water condenser. All instruments are included to take real-time data readings for further analysis.
The refrigerant used complies with anti-pollution legislation.
An Air-to-Water Heat Pump with Dual mode Evaporator Training Bench for studying the refrigeration cycle where the evaporator can be operated with either water or air.
The Heat Pump with Dual Mode Evaporator Training Bench has been designed and manufactured to incorporate all current safety standards.
Experiments:
Studying the operation of a heat pump
Determining the ideal and actual coefficient of performance (C.O.P.)
Comparison of evaporator operation and performance when operated with air or water
Reading and analysing the water temperatures and flow rate in real-time when the equipment is operating
Reading and analysing refrigerant pressures, temperatures and flow rate
Plotting the refrigeration cycle on a p-h diagram.
The Heat Release apparatus measures time to ignition, mass loss and heat-release rate (option) of specimens exposed in the horizontal orientation to controlled levels of irradiance with an external igniter.
On the front panel, the following are mounted:
Load cell controller
Tare button
Temperature Controller
Control switches comprising four red on/off push-button switches, which operate by firm pressure and light up when activated:
Ignition switches on the spark-generator circuit housed in the test chamber base
Load cell switches on the Newport controller
Power switches on mains electricity to the unit
Cone switches on the Eurotherm controller. This, in turn, energises a solid state relay, which switches the power to the cone heater (5kW)
Features:
Special split shutter mechanism is designed to prevent heating of the sample before the test is started
Fire model manufactured from stainless steel for long life
Three control thermocouples for the cone heater to maintain accurate heat flux
Sample weight measurement is by a strain gauge load cell with quick electronic tare facility
Control unit contains switches for power, ignition, load cell and cone heater
Spark assembly is used in conjunction with the shutter mechanism. Microswitches are fitted to the spark arm and the shutter mechanism for safe operation
Load cell controller with a weight-ranging facility to improve performance to suit weight of sample 0-500g
Temperature controller for ramp and control of cone heater.
Copper cylinder with integrated temperature sensor
Convective heat transfer of a cylinder in an air-flow tube
Oven keeps the temperature constant
Cylinder is heated in the oven to approximately120C
Display and analysis of the measured values using the software.
Display and control unit indicates air temperature, heater temperature and heating power
2 heaters can be inserted in a bundle or alone
Air flow rate adjustable
Convective heat transfer
Exchangeable pipe bundle as heat exchanger
Pitot tube and pressure measurement station to determine air velocity.
Examination of heat conduction in solids
Radial heat conduction: brass disc with heating and cooling element, 6 temperature measuring points
Linear heat conduction: 3 measuring objects, heating and cooling element, 9 temperature measuring points
Experimental setup consisting of experimental unit and display and control unit
Electric heating element
Cooling with mains water.
Sensors measure temperatures (upstream and downstream of the heating element and inside the Heating element), flow velocity of the air and heating power
Heat transfer in the air duct by free and forced convection
3 heating elements with different surfaces: flat plate, tube bundle or fins
Air duct with axial fan.
In radiation the heat transfer takes place via electromagnetic waves. Unlike heat conduction and convection, heat radiation can also propagate in a vacuum. Heat radiation is one of the three basic forms of heat transfer. Heat radiation is not bound to a material.
Features:
Effect of different surfaces on heat transfer by radiation.
The Base Unit is the core of the range. It includes a hand-operated valve to help give a controllable water flow and a simple return pipe, both colour-coded. The water connections to the optional experiments are self-sealing quick connectors for safety and simplicity. The inlet and outlet fluid streams have different colours to reduce errors. It provides cold water and heater power to the optional experiments and all the instruments needed to measure their performance. The Base Units water system connects to a suitable cold water supply and drain. It also includes sockets for the thermocouples built into each optional experiment. Clear, multi line digital displays on the Base Unit show the temperatures and heater power of each experiment. Changing an experiment takes less than a minute. The Base Unit provides a variable and measured electrical current to the heater in each experiment and works with a safety switch to stop the heater from becoming too hot.
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Heat Transfer In A Tubular Heat Exchanger
Temperature Controller Controls The Water Inlet Temperature For The Hot Water Circuit
7 Temperature Sensors With Digital Display And Selector For Temperature Measuring Points
Process schematic
Parallel Flow And Counter Flow Operation Adjustable
Flow Rates Adjustable Using Valves
Hot Water Circuit With Tank, Heater, Temperature Controller And Pump
Cold Water Circuit From Laboratory Supply.
Heat Transfer in Forced Convection Teaching Aid, Heat Transfer in Forced Convection Equipments, Heat Transfer in Forced Convection Tools, Heat Transfer in Forced Convection Tool Kits, Heat Transfer in Forced Convection Manufacturers, Heat Transfer in Forced Convection Suppliers from India, China, Kenya
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Fluidized bed of compressed air and aluminum oxide, particle sizes either 125µm or 300µm
Examination of the fluidized bed formation and the heat transfer in the fluidized bed.
Steel rulers for measuring the immersion depth of the heating element and the height of the fluidized bed
Safety valve, temperature switch at the heater, air filter at the outlet
Glass reactor with sintered-metal plate at the inlet and air filter at the outlet.
Glass reactor, backlit.
Manual setting of the air flow rate via valve and flow meter.
Heating element, submersible and with adjustable power output .
Instrumentation: temperature sensors at heater, air inlet, in fluidized bed, pressure measurement upstream of the reactor and in the reactor (manometer, pressure sensor), flow meter for measuring the air flow rate, power output of the heating element
Digital displays for temperatures, power output, pressure in the fluidized bed.
Experimentation:
To determine the effective thermal conductivity of the composite cylinder.
To compare the theoretical temperature profile within the composite cylinders, with that of observed profile.
To estimate the actual rate of heat transfer through the composite cylinders from the measured interface temperature of the two insulating materials with known thermal conductivities.
The unit includes instrumentation that is common to all modules, this being a 12 point digital tempe. A fully instrumented bench top Heat Transfer Service Unit providing regulated and adjustable AC power for all of the optional modules plus a number of auxiliary power outlets.
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A bench top service unit makes it possible to supply the electrical feedings and measurement facilities. The Heat Transfer Study Units has been designed to carry out experiments concerning the basic modes of heat transfer. Thus the student can investigate conduction, convection, radiation and their combined effects, non-steady state and measurement errors.
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The product is made up of test stick, heating block and hand held supporting rod. Test bars including: brass rods, rods copper, iron, aluminum bar, stainless steel rods, rod test size is φ5×80mm?handheld rod length of 240mm, using a metal rod production, heating block is made of copper material; handheld rod attached to the handle, and the handle adopts insulation materials production, grip length 80mm.
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