Archive for category: HEAT TRANSFER

RANGE OF EXPERIMENTS TO BE CARRIED OUT:
1. To determine Heat transferrate of heating & cooling.
2. To determine the overall andindividual film heat transfer
coefficients for a condensationof a vapour on a Horizontal Condenser.
3. To calculate Effectiveness of the Condenser.
4. The experiments can be conductedat various values of input &
calculation can be made accordingly.
TECHNICAL DESCRIPTION :
The shell and tube type horizontal condenser. Steam ( or any condensable organic vapour ) is admitted in the Shell Side. The pressure and temperature of the vapour is indicated by pressure gauge and Temperature Indicator . Condensate rate could be measured by collecting it in to a receiver in known time. The flow rate of cold water flowing through the inner pipe is known by rotameter.

DIMENSIONS AND WEIGHT :
Size :1.2 m.(L)x 1 m(W) X 2m ( H )
Weight :Approx. 110 Kg , Water: @10 Lpm
SERVICE REQUIRED :
440 v Ac Supply 50 Hz, Three Phase.
SCOPE OF DELIVERY:
1. Experimental Setup
2. Instructional Manual
OPTIONAL FACILITY: Data logging Facility

Get More Details:- 36- SURFACE CONDENSER

RANGE OF EXPERIMENTS TO BE CARRIED OUT :
1. To determine total thermal resistance & thermal conductivity of lagged pipe.
2. To plot temperature gradient across the lagged material.
3. The experiments can be conducted at various values of input & calculation can be made accordingly.
4. To plot Heat input (supplied) Vs thermal conductivity in lagged pipe.
TECHNICAL DESCRIPTION :
The apparatus consists of three concentric pipes mounted on suitable stand. The inside pipe consists of a heater. Between first two cylinders the insulating material with which lagging is to be done is filled compactly. Between second and third cylinders another material used for lagging is filled. The thermocouples are attached to the surface of cylinders approximately to measure the temperatures. The input to the heater is varied through an autotransformer and measured on voltmeter and ammeter. The experiments can be conducted at various values of input and calculations can be made accordingly

DIMENSIONS AND WEIGHT :
Size :1.5 m.(L)x 1.0 m(W) X 0.7m ( H ) , Table Top
Weight :Approx. 70 Kg
SERVICE REQUIRED :
230 v Ac Supply 50 Hz
SCOPE OF DELIVERY:
1. Experimental Setup
2. Instructional Manual
OPTIONAL FACILITY: Data logging Facility

Get More Details:- 2- LAGGED PIPE APPARATUS

RANGE OF EXPERIMENTS TO BE CARRIED OUT :
1. To determine thermal resistance & critical radius ofinsulating material.
2. The experiments can be conducted at various values of input &calculation can be made accordingly.
TECHNICAL DESCRIPTION :
The apparatus consists of one metal cylinder in which heater is fitted . The insulating material (asbestos belt) as lagging material is covered around the cylinder. Again the total assembly is insulated by glass wool & aluminum foil. The heat supplied to inner cylinder through heating coil by using a by a Autotransformer & is measured by Voltmeter & Ammeter.
Thermocouples are used to measure the temperatures, thermocouples 1 to 5 are fixed on metal cylinder and on the external side of insulating material.
DIMENSIONS AND WEIGHT :
Size :1.5 m.(L)x 1.0 m(W) X 0.7m ( H ) , Table Top
Weight :Approx. 70 Kg
SERVICE REQUIRED : 230 v Ac Supply 50 Hz
SCOPE OF DELIVERY:
1. Experimental Setup
2. Instructional Manual
OPTIONAL FACILITY: Data logging Facility

Get More Details:- 4- CRITICAL RADIUS OF INSULATING MATERIAL

RANGE OF EXPERIMENTS TO BE CARRIED OUT:
1. To study the temperature distribution along the length of a pin fin in natural & forced convection.
2. To calculate Gr, Pr& Nu number in natural conviction.
3. Calculate Re, Pr & Nu number in forced conviction.
4. Calculate the values of heat transfer rate from the fin &
the fin effectiveness in natural & forced conviction.
5. The experiments can be conducted at various values of input & calculation can be made accordingly.

TECHNICAL DESCRIPTION
The apparatus consist of a brass fin of circular cross section is fitted across
a long rectangular duct. The other end of heater is connected to the
suction side of blower .Air flows fast through the fin perpendicular to its axis.
One end of the fin is outside the duct & is heated by the heater. Temperature
at five points along the length of the fin are measured by Thermocouples. The
air flow rate is measured by Orifice meter fitted on the delivery side of blower.
Auto transformer is provided for varying the input to the heater & measurement
of input is carried out by a voltmeter, ammeter
DIMENSIONS AND WEIGHT :
Size :1.5 m.(L)x 1.0 m(W) X 1.5m ( H )
Weight :Approx. 70 Kg
SERVICE REQUIRED :
230 v Ac Supply 50 Hz
SCOPE OF DELIVERY:
1. Experimental Setup
2. Instructional Manual
OPTIONAL FACILITY: Data logging Facility

Get More Details:- 6-HEAT TRANSFER THROUGH PIN FIN APPARATUS

RANGE OF EXPERIMENTS TO BE CARRIED OUT:
1. Average surface heat transfer coefficient for a pipe losing heat byforced convection to air flowing through Pipe and it can be obtained for differentair flow & heat flow rates.
2. To Calculate the Reynold’s number &Nusselt number for each experimental condition.To Plot these values on Log – log graph. To Plot on the same graphthe Dittus-Boelter correlation.
3. To plot & comment on the surface temperature distribution along the length of pipe.

TECHNICAL DESCRIPTION
The apparatus consists of Blower unit fitted with a test pipe. The test section is
surrounded by Nichrome band heater. Thermocouples are fixed on the test
section also in the air stream at the entrance & exit of the test section to measure
the temperature. Test pipe is connected to the delivery side of the blower along
with an orifice to measure flow of air through pipe Auto transformer is provided
for varying the input to the heater & measurement of input is carried out by a
voltmeter, ammeter
DIMENSIONS AND WEIGHT :
Size :1.5 m.(L)x 1.0 m(W) X 1.5m ( H )
Weight :Approx. 65 Kg
SERVICE REQUIRED :
230 v Ac Supply 50 Hz
SCOPE OF DELIVERY:
1. Experimental Setup
2. Instructional Manual
OPTIONAL FACILITY: Data logging Facility

Get More Details:- 8- FORCED CONVECTION APPARATUS