Thermodynamics

TH-01 Engine Test Bed

Features
Allows students to measure torque, speed air flow and fuel flow during operation.
Cooling system flow and temperature measurement.
Exhaust Gas Calorimeter measurement

Description
The TH01 engine test bed is a selfcontained manually operated engine test facility for automotive light duty 4-cylinder petrol (gasoline) and diesel engines having an instrumentation and control system purpose designed to study engine performance, economy and energy balance measurements.

Experimental Capabilities
1. Measurement of torque and power with plotting of full throttle/rack power against speed curve
2. Determination of brake mean effective pressures
3. Analysis of torque speed characteristics
4. Determination of fuel consumption characteristics
5. Calculation of brake specification fuel consumptions
6. Analysis of load characteristics at constant speed
7. Determination of volumetric efficiency
8. Air consumption, fuel consumption, air/fuel ratios
9. Brake thermal efficiencies
10. Exhaust, water, oil, fuel and air temperatures

TH-05 Steam Power Plant

Features
Self contained, complete teaching facility
Low cost & Easy installation
Comprehensive instrumentation
Monitoring and control of the system using a HMI-PLC
System equipped with PC data acquisition

Description
The TH05 Steam Power Plant was specially designed for technical training in the area of steam power plant engineering. The equipment has been designed to provide a comprehensive facility for the complete investigation of a steam power plant. The features incorporated and power ratings chosen constitute an excellent representation of industrial practice within the limitations of an educational laboratory.

The plant can operate as a steam boiler, turbo-generator or complete power plant. Available tests include: thermal and total efficiency consumption, boiler capacity, efficiency, heat balance, turbine power and specific steam consumption

An oil-fired boiler generates wet steam, a superheater provides superheated steam. The turbine drives a generator. After the turbine, the steam is condensed and fed back to the boiler. All relevant parameters are measured using sensors and transducers and displayed on a graphic screen as measured values. The switch panel contains a clearly laid out flow diagram for the system. Measured data can be transferred to a PC for further processing. The system is monitored and controlled using a PLC with an LCD graphic touch screen.

A fuel tank and feed water tank are integrated into the system to form a self-contained unit. The feed water circuit is equipped with a complete feed water treatment unit that comprises a regenerating ion exchanger, a carbon filter and a cartridge filter.

The TH05 Steam Power Plant is designed as a comprehensive, self-contained unit with all relavant items of equipment factory mounted on a common steel bedplate. This modular construction and assembly greatly reduces space and installation requirements.

The system is supplied with comprehensive documentation. It has been built in accordance with legal safety requirements and includes the stipulated safety devices. Due to the usage of an instantaneous boiler, rapid generation of steam is possible. A supply of three-phase mains electricity and cooling water (20m³/h), or the cooling tower, are required for operation.

Experiments
1. Familiarisation with a steam power plant and its components
2. Familiarisation with simple feed water treatment
3. Starting/operation/running down a steam power plant
4. Familiarisation with a closed steam-water circuit
5. The determination of:
- Boiler efficiency
- Mechanical/thermal efficiency of a turbine
- Condenser efficiency
- Specific fuel consumption of the system

TH-12 Flame Propagation and Stability Unit

Description

This unit has been designed to allow students to investigate the behavior characteristics of flames such as flame lift off and flame light back. A blower and control valve is provided for air supply and control air flow rate. Slow burning gaseous fuel from cylinder or mains is controlled and measured in a similar idea. Both air and gas are separately introduced into a mixing block designed to accommodate a variety of mixing tubes. A heat resistant glass tube and supporting ring is provided to enable the primary and secondary flames to be separated. The flame speed system is provided to allow investigation of the relationship of flame speed and air/fuel ratio

Range of experiment
1. Demonstration of the process of flame lift off
2. Demonstration of the process of flame light back
3. To investigate the relationship of flame speed and air/fuel ratio for a variety of slow burning gaseous fuels.
4. Enable students to investigate methods of improving flame stability limits

TH-21 Exhaust Gas Calorimeter

Description
The exhaust gas calorimeter is a shell and tube heat exchanger where the exhaust gas passes thro’ the tubes and cooling water passes thro’ the shell. The cooling water flow rate is measured by a rotameter. The exhaust gas inlet and out let temperature and cooling water inlet and out outlet temperature are measured by thermocouples. The temperature readings are display on the digital display board.

The amount of heat exchange from the exhaust gas to cooling water can be calculated from the water flow rates and water inlet and outlet temperatures.

TH-22 Gas Turbine Engine

Detail
Single shaft gas turbine
Open gas turbine process
Gas turbine as jet engine

Description
Using the HT22 the behaviour of a jet turbine can be studied. Jet turbines are used on aircraft for propulsion due to their low weight and their high performance.

The gas turbine in the HT22 is a single-shaft jet engine with radial compressor and axial turbine. Compressor and turbine are of single-stage design. A transparent protective cover enables the intake volumetric flow rate to be measured using a measuring orifice. The thrust force is measured using an electronic force sensor. The turbine is started fully automatically with the aid of an electric starter. The unit can operate stand alone operation: acquired data shown digitally on the graphic screen of HMI (Human Machine Interface), as well as transfer data to PC by using an optional software and serial cable.

Range of Experiment
Determination of the thrust
Determination of the specific fuel consumption
Determination of system efficiency
Determination of the air fuel ratio

TH-23 Miniature Steam Power Plant

Features
- Demonstration model steam system representative of Industrial Power System
- Self contained complete teaching facility
- Low cost introduction to steam studies
- Simply installed
- Comprehensive instrumentation

Descriptions
TH23 Miniature Steam Power Plant is the smallest in our range of Steam Power Products and has been designed to allow teaching establishments to give students an appreciation of steam and its properties. A small gas fired boiler supplies steam to a single cylinder double-acting reciprocating engine which drives, by means of a belt, a small DC generator with switchable resistive loading. The exhaust steam from the engine is condensed in a water cooled condenser, the condensate being measured by weighing the collecting beaker provided. Instrumentation to measure various temperatures throughout the plant, steam pressure, fuel and cooling water flow, together with voltage and current loading on the DC generator, is provided. It is thus possible to perform a series of tests on the plant, to ascertain boiler and engine characteristics as well as overall plant performance. All components are mounted on a self supporting framework.

Range of Experiments
1. Recording the vapour pressure curve
2. Effect of re-evaporation and addition of cold water
3. Determination of:
- Fuel consumption
- Steam generated
- Power output
- Boiler efficiency
- Condenser performance

TH-24 Steam Turbine Plant

Features

  • Demonstration model steam system representative of Industrial Power System

  • Self contained complete teaching facility

  • Low cost introduction to steam studies

  • Simply installed

  • Comprehensive instrumentation


  • Description
    TH24 Miniature Steam Turbine Plant is the smallest in our range of Steam PowerProducts and has been designed to allow teaching establishments to give students an appreciation of steam and its properties. A small electrically heated boiler supplies steam to a steam turbine which drives, by means of a belt, a small generator with switchable resistive loading. The steam consumption is measure by weighing the boiler by a load cell. Instrumentation to measure various temperatures throughout the plant, steam pressure and voltage and current of the heater coil of the boiler, together with voltage and current loading on the generator, is provided. It is thus possible to perform a series of tests on the plant, to ascertain boiler and engine characteristics as well as overall plant performance. All components are mounted on a self supporting framework.

    Range of Experiments
    1. Recording the vapour pressure curve
    2. Effect of re-evaporation and addition of cold water
    3. Determination of:
    - Electricity consumption
    - Steam generated
    - Electrical Power