Heat Engine Lab

Name of equipment:              Engine Research and Test Bed
Quantity: 02
Model Number: GWE-30/100-JL-DV

Description/ Range of Experiments:
The major Features are described below

  1. Full performance Test possible
  2. Full engine instrumentation
  3. Full heat balance obtainable
  4. Full quantitative studies possible
  5. Teaches bascules of engine testing
  6. Engine and electric dynamometer completely accessible
  7. Other engine may be used including gasoline diesel petrol and winkle engine
  8. Components and instruments by internationally known manufacturers
Gives pressure-time pressure- crank angle and pressure-volume diagram

 

Name of Equipment:     Cooling Unit
Code No: HT - 1
Model:  RAP-3000F
Quantity: 02

 

Description:
Basic principles of refrigeration testing are performed easily. Study thermal losses and analysis method of refrigeration by plotting refrigeration cycle on I-P diagram from measured result of temperature, pressure and flow rate of refrigerant
Range of Experiments:

  1. Over all efficiency of compressor.
  2. Capacity of condenser based on extracted heat of cooling water and enthalpy reducing of refrigerant.
  3. Refrigerant effect.
  4. Ice making effect based on ice production and input of compressor.
  5. Coefficient of performance based on enthalpy change of refrigerant and temperature of reservoir
) Flow rate in weight of refrigerant measured on flow meter

 

Name of Equipment:    Steam Bench
Code No:  EH - 1
Model:  P7670

 

Description:
The Cussons /Wards steam bench is designed to assist in the study of the thermodynamic properties of steam.
The bench consists of a range of units which can be used impudently or in conjunction with each other. When the units are used in connection with each other each unit enter faces with next by the use of four short interconnecting pipes.

 

Name of equipment:      Boiler Control Demonstration and Fault                                                                Simulator Unit
Model number: P 7665

 


Description/Range of Experiments:

A Fulton electric steam boiler of 30 KW rated output is used as the steam source with its output connected into the steam bench main so that benches in a particular system can be supplied with this type of boiler there are no fuel supply or noise problems to overcome and thus since the boiler can be situated near to the load being supplied the heat loss in transmission is minimized the boiler itself consists of a welded steel  structure fully insulated with mineral wool and enclosed in a mild steel jacket the heat input to the boiler is provided by specially designed electrical resistance immersion elements run at a low power density  in order to give a long operational  life. The boiler with its attendant mains water make up tank is housed on a double unit bench module with normal steam main blow down drain and feed water connections.

 

Name:                   SEPARATING AND THROTLING CALORIMETER
Model Number:  P7672

Description/Range of Experiments:

Separating and throttling calorimeters are used to determine the dryness fraction of steam. In this Equipment a combined separating and throttling Calorimeter is used to determine the dryness fraction of the steam supplied to the system. In the’ Throttling' calorimeter the incoming steam is fed into the throttling calorimeter body via a fixed orifice, the pressure inside the calorimeter body being slightly above atmospheric. This causes the steam to become super heated and by measuring the final Temperature and pressure of this steam and dryness fraction of the steam can be calculated.

 

Name:           STEAM ENGINE
Model Number:   P7676

Description:

            The steam bench comprises a robust single cylinder, double acting reciprocating steam engine driving a dynamometer which enables a calculable, variable resistive load to be easily imposed on the engine. The steam engine is supplied with steam from a steam header at a reduced pressure via an over speed trip solenoid valve and a displacement lubricator from which oil is displaced by droplets of condensed steam into the steam supply to lubricate the engine Steam engines utilize the energy contained in steam under the pressure. The energy released when steam expands in the cylinder of an engine enables rotary motion to be achieved, which can be used to pump, lift and move

Range of Experiments:

            To determine the mean effective pressure, brake power, indicated power, steam consumption and mechanical efficiency of a single cylinder steam engine under varying loads and constant speed

 

Name:                       NOZZLE RIG
Model Number:  P 7681

 

Description:

      The pressure distribution along the nozzle is measured by a traversing assembly fitted with a calibrated test pressure gauge (-1 to 12 bar) and a pointer moving over a replica profile of the nozzle under test.

Range of Experiments:

  • The variation of pressure along a nozzle profile as a function of back pressure
  • The effect of back pressure on the mass rate of flow
  • A comparison of theoretical and actual throat pressures on rates of flow
  • Determination of critical pressure ratio for choked flow
  • Calculation of velocity through length of nozzles of various forms
  • Study of the effects of friction in a parallel nozzle
  • Study of shock wave formation within nozzle
  • divergence and at nozzle outlet
Measurement of state at entry to the nozzle and subsequent calculation

 

Name:                       EJECTOR RIG
 
Model Number:   P7674

 

Description:
Incorporating a typical commercially available steam ejector instrumented for the measurement of temperature and pressure at the steam inlet, suction inlet and delivery outlet. Two water tanks acting as a suction tank and a delivery tank respectively, are inter-connected in such a way that water can be returned to the suction tank to permit experiments with suction water at varying temperatures. Water supply to the suction tank is via a flow meter.

Range of Experiments:

  • To investigate the overall efficiency of the ejector over a range of working conditions
  • To investigate the efficiency when used as a feed water heater under user variable temperatures and pressures
To investigate the efficiency when used as a pump under working conditions set up by the student.

 

Name:                       CONDENSER BENCH
 
Model Number:   P 7675

 

Description:

The steam bench includes a water-cooled multi-tube condenser, a steam feed line to supply a regulated supply of steam at reduced pressure and a condensate tank complete with a sight glass. Cooling water flow rate is metered in the supply line and regulated by a control valve in the drain line. Bourdon type pressure gauges are provided from pressure indications and thermocouples are used to measure temperature, which may be individually selected for display on an analogue temperature meter.

Range of Experiments:

  • To investigate the overall heat transfer coefficient of a condenser under conditions of inlet and outlet pressure, and rate of cooling flow
  • To demonstrate that condensing steam is a closed system will produce a vacuum

 

Name:                       LAGING EFFECENCY BENCH
 
Model Number:   P 7673

 

Description:

The steam bench incorporates four similar mild steel tubes, each connected to a common steam supply via an inlet regulating valve and a common blow down line via an outlet valve. Two of the tubes are unlagged but have differing finishes, namely a painted finish and a chromium plated finish respectively.

Range of Experiments:

  • Investigation of the efficiency of two types of lagging widely used in industry
  • Calculation of lagging efficiency of each lagging
  • To compare the energy loss from lagged tubes with that from unlagged tubes
Calculation of the coefficient of thermal conductivity of the lagging

Name of Equipment: Four Stroke Petrol Engine Section Model

Description/ Range of Experiments:
In this model the working of complete car (Gasoline Engine) is shown with the help of actual parts assembled on an angle iron chassis frame. All the necessary parts are shown in actual working form. This model helps the student to understand the working of four stroke gasoline engine car chassis very easily. It is specially made dissectible for demonstration purposes. Car chassis consists of the following parts,

  1. Water Body
  2. Radiator
  3. Cooling Fan
  4. Self Starter
  5. Dynamo

Engine consists of following parts;
Cylinder head, cam shaft, distributor, carburetor, spark plugs, pistons, valves, lubricating system, crank shaft, fuel pump, cooling system, Steering System , Clutch Assembly , Clutch Paddle Break Paddle , Gear Box  ,Driving Shaft , Differential
Assembly, Rear Axial Assembly, Wheel Rims, Exhaust & Silencer Suspension System Driving Handle or Motor Gear Box.