Heat Transfer Lab

KHT-09 Heat Transfer through Lagged Pipe

compensation. Nichrome Specifications:cartridge heater of • Pipes Length of Pipes – 1m suitable capacity and length.(approx).

• M. S. Pipe inside – 5cm dia. Range of Experiments:

approx, M. S. Pipe Middle – • To determine heat flow rate

10cm dia (approx).through lagged pipe and

• M. S. Pipe Outer – 10cm Control compare it with the heater input

Panel consisting of for known values of thermal

•Voltmeter-0-200 Volts., conductivity of lagging material.

•Ammeter – 0 – 2 Amp.• To determine thermal

•Dimmer stat for heater, conductivity of lagging material

0 - 230 Volts, 2 Amp. by assuming input to be heat

•Digital Temperature indicator, flow rate.

0-300°C using Chromel-• To plot temperature distribution

Allumel thermocouples, across lagging material.

provided with cold junction

KHT-10 Stefan Boltzman Apparatusprovided with cold junction Specifications:compensation.• Hemisphere dia – 200 mm

iii)Built in timer for temperature (approx).readings at 5 seconds • Jacket disc - 250 mm.interval.• Test disc size – 20 mm dia x

1.5mm thickness. Range of Experiments:

• Water tank of sufficient capacity • Determination of Stefan –

with a 1.5 kw immersion heater.Boltzmann constant.

Control Panel comprises of :-• Study of effect of hemisphere

i) Supply for heater.temperature on the constant.

ii) Digital temperature indicator

0-200°C using Chormal-

Alumel thermocouples,

KHT-11 Shell and Tube Heat Exchanger

Specifications:

• Shell - Material -M. S.

-Inner dia -208mm

-Thickness -6mm

-Length -500mm

25% cut baffles at 100mm distance - 4nos.

• Tubes - Material - Copper

- I. D. - 13mm

- O. D. - 16mm

Length of tubes - 500mm

Number of Tubes - 16

• Thermometers- 10-0- to 110°C - 2nos.

• Geysers - 230 V A. C. 3kw. - 1 nos.

Range of Experiments:

• Determination of heat

transfer coefficient for inner

and outer surface of tubes.

• Study of variation of heat

transfer coefficient with

the type of flow.

Kitek Technologies Pvt. Ltd.

Heat Transfer Lab

KHT-12 Parallel Flow and Counter Flow Heat Exchanger

KHT-13 Thermal Conductivity by Guarded Hot Plate

Specifications: Range of Experiments:• Length of Heat Exchange 1.6 m Determination of overall heat

Outer late material G. I. transfer coefficient for a tube –in –

• I. D. – 27.5mm O. D. – 33.8mm tube type heat transfer. To

• Inner tube material – Copper calculate

O.D, 12.7mm i) Rate of heat transfer

• Thermometer 0° to 200°C–1nos. ii) Theoretical overall heat

• Geyser – Instantaneous type. transfer co-efficient.

3kw capacity – 1 no. To compare the performance of

• Measuring flask – 1000 with stop Parallel flow & Counter flow heat

clock. exchanger.

2 Amp – one Specifications:d) Digital Temperature indicator • Central Heater – suitable capacity,

0 - 200°C with using Chromel – with 100 mm dia. sandwiched Allumel thermocouples, between two copper platesprovided with cold junction • 180 mm mica heater Sandwiched compensation.between two copper plates

Cooling chamber with water Range of Experiments:

circulation arrangement.• Determination of Thermal

• Specimen –6 to 20 mm thick, 180 conductivity of insulating

dia.Material in the form of slab.

• Glass wool bag insulation around • Study of variation of Thermal

the set-upConductivity of the material with

• A Control Panel comprising of – temperature.

a) Voltmeter – 0 – 200 Volts• Comparison of Thermal

b) Ammeter – 0 – 2 Ampconductivities of various

c) Dimmer stat for central & insulating Materials.

guard heater 0 – 240 Volts

Specifications: Range of Experiments:• Voltmeter 0 - 200 Volts Two successive regions of pool

• Ammeter 0 - 5 Amp boiling phenomenon namely:

• Cylindrical glass Vessel diameter • Natural Convection Boiling and.

200mm approx. • Nucleate Boiling. Can be

• Cylindrical glass Vessel height visualized up to the critical heat flux

125mm approx. point which is attained by slowly

• Bulk Heater - Nichrome Coil. increasing the input to heater by the

• Test Heater - Nichrome Wire. dimmerstat. At the critical heat flux

• Thermometer - 10° to 100°C. point the wire melts indicating the

maximum heat flux position.

V and I to be recorded at Critical

Heat Flux Point (max.)

KHT-14 Critical Heat Flux Apparatus

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Heat Transfer Lab

KHT-15 Drop and Film Apparatus

KHT-16 Heat Pipe Apparatus

Specifications: Range of Experiments:• Steam generator of suitable • To find out heat transfer co-

capacity. efficient of drop wise and film

• Copper tubes with - wise condensation at various flow

i) Natural finish. rates of water.

ii) Polished surface finish. • Visualization

• Temperature Indicator 0 - 200° C

with Chromel - Alumel

thermocouples.

Specifications:• O. D. of heat pipe = 25mm

• Stainless Steel pipe = 25mm

Copper pipe = 25mm

Length of the pipes = 350 mm each.

• Condenser tank size = 150 x 100 x 100 mm capacity about 2 liter of water.

• Working fluid in heat pipe distilled water.

• Voltmeter 0 - 200 Volts

• Ammeter 0 - 5 Amp

• Dimmerstat 0 - 4 Amp, 0 - 240 Volts.

• Heater-Nichrome heaters with ceramic beads.

• Temperature indicator 0-300°C 18 channels with cold junction

compensation.

• Thermocouples - 6 Nos. on each members. Thermometers - 0° -100°C .1 No.

KHT-17 Unsteady State Apparatus (Plain Tube Pipe)

• A timer with buzzer to note the Specifications: temperature at regular time • Test Piece : interval.Copper Ø25mm X 60L

• The unit provided with an M.S. Ø25mm X 60Lattractive and rust proof powder Brass Ø25mm X 60Lcoating.• Copper test cylinder, with a

thermocouple at the center.

• Water bath with electric heater.

• Dimmer start to control bath

temperature.

• Digital temperature indicator to

measure bath and cylinder

temperature.

Kitek Technologies Pvt. Ltd.

Heat Transfer Lab

KHT-18 Heat Transfer through Mass

KHT-20 Vertical Condenser Test Rig.

Specifications:• Voltmeter 0 - 200 Volts, Ammeter 0 - 5 Amp

• Temperature Indicator 0° - 300°C, Blower - 0.5 HP

• Mass transfer appears in many practical

applications of Chemical & Mechanical

Engineering. Some of examples of industrial

importance of mass transfer are

• Humidify of air in a Cooling Tower

• Evaporation of petrol in the Carburetor of a Petrol

Engine.

• Evaporation of Liquid Ammonia in the

atmospheres of Hydrogen in Electrolux

Refrigerator.

• Dispersion of Oxides of Sulphur from a power

plate discharge of Neutron in a Nuclear Reactor.

KHT-19 Plate Type Heat Exchanger

Optional Accessories (at extra cost)Specifications:• Rotameter to measure water • Heat Exchanger : Plate heat

flow rates instead of measuring exchanger with 5 nos. of 180mm x tank.400mm S. S. plates.

• Multi - channel digital • Geyser to obtain hot water – 3kw temperature indicator 0° - 300° C capacity.to measure the temperatures • Calibrated water flow instead of thermometers.measurement tank.

• Thermometers to measure inlet

and outlet temperatures of fluid.

• Flow control Valves.

A technical manual accompanies

the unit.

Specifications:

• G. I. Shell - 50 NB, 1 m long provided with end

boxes.

• Copper Tube – 21 mm I. D., 25 mm O. D. &

1000 mm length.

• Instantaneous water heater, 3Kw capacity, to

supply hot water

• Temperature indicator for measuring the water

temperatures.

• Valves to control hot and cold water flow.

• Rota meters to measure the cold & hot water flow

rates.

• Voltmeter & ammeter to know the instant supply

conditions.

Kitek Technologies Pvt. Ltd.