Heating and Ventilation

Showing 1–12 of 18 results

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  Heating and Ventilation

  Domestic Gas Supply Training Panel

  The experiments are performed with air. A compressed air connection with reservoir and pressure reducer are included on the panel. The panel has two pipe circuits that can be individually selected. Various leaks can be simulated in one gas line. The other line represents a normal gas supply pipe. A gas meter is fitted in each line. Typical industrial components are used. Leak detection and installation work can be performed on gas pipes by the trainee. A compressed air supply is required for operation.

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  Heating and Ventilation

  Domestic Heating Circuit Training Panel

  A pump circulates water through four radiators. The temperature of the radiators is set using thermostatic valves. A digital controller keeps the room temperature constant by driving the fourway mixing valve. This valve sets the temperature of the boiler return and the heating feed flow. Cold water connections enable the heat generated to be dissipated. The differential pressure across the pipe system is limited using a relief valve. Temperatures can be read on dial thermometers.

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  Heating and Ventilation

  Domestic Heating System Control Training Panel

  The training panel clearly demonstrates the function of a heating controller. The electronic controller, room thermostat and mixer valve are real components. The water, indoor and outdoor temperatures are set using potentiometers. Lights indicate the function of the pumps and the boiler. The components are clearly laid out on the system diagram to show their relationships. The system reacts rapidly because the temperature parameters are manually set by potentiometers.

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  Heating and Ventilation

  Expansion Vessel Training Panel

  Using this panel the function of a normal expansion vessel is examined and a pressure-volume characteristic recorded. The expansion vessel is filled with water from a supply tank. The pressure is generated using a small compressor and adjusted using a pressure regulating valve. The amount of water taken up by the expansion vessel is read on a scale on the supply tank.

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  Heating and Ventilation

  Fitting Loss Training Panel

  Four measured sections are fitted to the panel, each comprising ten elbows and bends in different layouts. The overall length of each section is the same. It is possible to measure the pressure loss and to investigate the effects of material, surface roughness and flow rate. The water flows through a pipe with a manual valve and flow meter before passing through the measured sections. The section under test is connected with a hose.

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  Heating and Ventilation

  Oil Burner Demonstrator

  The unit is equipped with an oil burner. The oil pressure at the burner, the combustion chamber temperature, measured with a thermocouple, and the preheat temperature of the oil are indicated on an additional digital measuring unit. A small oil tank is fitted on the lower shelf of the trolley. The boiler features two viewing windows for observing the flame. The heat generated can be dissipated using a plate heat exchanger and additional cooling water connections, enabling the unit to be operated continuously.

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  Heating and Ventilation

  Oil Tank Safety Trainer

  The system contains all the stipulated safety fittings and tank protection devices. The double-walled oil tank includes filling and outlet devices. Indicators such as a level gauge and a leak detector are fitted to a metal panel. The system is fully functional so it is possible to use it for the supply of oil to laboratory equipment as well as performing the tests and demonstrations.

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  Heating and Ventilation

  Pipe Friction Training Panel

  Four different pipe sections are fitted to a metal panel. Each section can be individually selected using ball valves. The measuring points are 1 m apart. To keep measuring inaccuracies as low as possible, the pressure is measured using annular chambers. The training panel is supplied from the water mains. The flow rate is adjusted using valves and measured using a rotameter. The pressure drop over a pipe section is measured using a digital, battery-operated differential manometer.

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  Heating and Ventilation

  Radiator Training Panel

  The panel contains a pipe system with four radiators. Each radiator has an air bleed, a thermostatic valve and lockshield valve. Rotameters indicate the flow rate through each individual radiator and for the entire system. Connections for cooling water make it possible to dissipate the heat supplied by the hot water. All water connections are equipped with quick-release hose couplings. It is possible to assemble a complete heating system by adding other training panels from the series.

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  Heating and Ventilation

  Safety & Control in Heating Systems

  Using the test stand various safety and control devices can be investigated and evaluated. Typical industrial components are used. PC data acquisition allows the data to be displayed graphically.

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  Heating and Ventilation

  Safety Devices Training Panel

  An electrically heated pressure vessel is mounted on the panel. The vessel can be filled via different pipe sections. One pipe section is equipped with a system of safety devices for protecting a sealed water heater. The pressure vessel is also equipped with a thermal discharge safety device that discharges to a blow-off pipe. When the pressure or temperature level set is exceeded, the safety devices are tripped. Pressure and temperature in the system are displayed.

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  Heating and Ventilation

  Supply Bench for Training Panels

  The mounting frame for a training panel and the universal measuring system is fitted to a sturdy trolley. This enables a flexible, standalone trainer to be set up using the supply bench, one of the training panels and the measuring system. A switch / fuse box provides two single phase and two three-phase electrical outputs. Hot and cold water connections are provided. A heating system can be connected to the heating feed and return flow pipes and a gas connection is also provided. A fibreglass drip tray is fitted under the mounting frame for the training panels. A lockable cupboard for the secure storage of documentation or small parts is mounted under the fibreglass work area. The photograph shows the together with the measuring system and the training panel.