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HEAT TRANSFER THROUGH COMPOSITE WALL MAKE:-CREATIVE LAB MODELNO: - CLHT-01

DESCRIPTION:
The present setup is designed to study the heat transfer through composite walls. It consists of a heater sandwiched between a composite structure having three different types of slab on either side. A small hand press frame is provided to ensure the perfect contact between the slabs. Heat produced by heater flows axially on both the sides. Temperature Sensors are embedded at the interfaces of slabs to determine the temperature gradient. The experiments can be conducted at various values of heat input and calculation can be made accordingly. A Digital Temperature Controller is provided to have an automatic smooth control on required heat input to the heater as per user requirements. Further steady state of experiment is achieved in very less time as compared to manual control. Electronic energy meter is provided to measure the heat input.
EXPERIMENTATION 
To determine total thermal resistance and thermal conductivity of composite wall.
To plot temperature gradient along composite wall.
UTILITIES REQUIRED
 Electricity Supply: 1 Phase, 220 V AC, 2 Amp 
 Table for set-up support.
TECHNICAL DETAILS:
Slab assembly arranged symmetrically on both sides of heater.
Slab Material : Slab Size
Cast Iron: 250 mm dia. & 20mm thick.
Bakelite : 250 mm dia. & 15 mm thick.
Press Wood: 250 mm dia. & 12 mm thick.
Heater: Nichrome wire.
Control panel comprising of :
Digital Temperature Controller: PID Controller, 0-199.9° C.
Energy meter: Digital Type for power measurement.
Digital Temp. Indicator: 0-199.9° C, with multi-channel switch
Temperature Sensors: RTD PT100 type- 8Nos. With standard make On/off switch, Mains Indicator etc.
Cabinet to accommodate the slab assembly with front window of acrylic.
An ENGLISH instruction manual consisting of experimental procedures, block diagram etc. will be provided along with the Apparatus.

 

 

 


HEAT PIPE DEMONSTRATOR MAKE:-CREATIVE LAB MODEL NO: - CLHT-03
DESCRIPTION:
It is a super-conducting device and involves the transfer of heat by boiling and condensation of a fluid and hence transfer of heat takes place under nearly isothermal condition.  In this apparatus the comparison of heat pipe with the copper pipe as good conductor of heat and with the stainless steel pipe as same material of construction is made. It consists of three identical cylindrical conductors in respect of geometry.  One end of these is heated electrically while there are small capacity tanks acting as heat sinks at the other end.  The unit consists of a heat pipe, a copper pipe and a stainless steel pipe.  The performance of the heat pipe as a super-conducting device can be studied well in terms of the temperature distribution along the length at a given instant and can be compared with other two members.  Nearly isothermal temperature distribution and fast rise of temperature in heat sink tank reveals the heat pipe superiority over the conventional conductors.
EXPERIMENTATION:
To demonstrate the super thermal conductivity of Heat Pipe and to compare its working with best conductor i.e. Copper pipe & Stainless steel pipe as same material of construction.
To plot the temperature v/s time response of pipes.
To plot the temperature distribution along the length of pipes.
UTILITIES REQUIRED
Electricity Supply: 1 Phase, 220 V AC, 4 Amp.
Table for set-up support.
TECHNICAL DETAILS:
Pipes : 1st : Heat pipe made of stainless steel.
2nd : Made of copper.
3rd : Made of Stainless steel
Size : 32mm dia,
350 mm length (Approx.)
Heat Sink : Material Stainless steel.
Working fluid in heat pipe : Distilled water.
Heaters : Nichrome Wire Band Type.
Control panel comprising of
Digital Temperature Controller : PID Controller, 0-199°C.
Digital Temp. Indicator : 0-199.9oC,
with multi-channel switch
Temperature Sensors : RTD PT-100 type-12Nos.
With standard make On off switch, Mains Indicator etc.
An ENGLISH instruction manual consisting of experimental procedures, block diagram etc. will be provided along with the Apparatus.
 

HEAT TRANSFER THROUGH LAGGED PIPE MAKE:-CREATIVE LAB MODELNO: - CLHT-02
 DESCRIPTION:
The setup is designed and fabricated to study lagging phenomenon in case of pipes. It consists of three concentric pipes of small thickness as compared to diameter and are arranged concentrically, and closed with the help of two discs. Two different insulating materials fill the annuli between the cylinders. Temperature Sensors are fitted to measure the temperature of pipe walls for radial outward heat flow measurement.  Inside the inner pipe, a Nichrome wire heater is placed axially.  Heat input to the heater is given through a variac and measured by Digital Voltmeter and Digital Ammeter.
EXPERIMENTATION:
To estimate the actual rate of heat transfer through the composite cylinders from the measured Interface temperature of the two insulating materials with known thermal conductivities.
To determine the effective thermal conductivity of the composite cylinder.
To compare the theoretical temperature profile within the composite cylinders, with that of observed profile.
UTILITIES REQUIRED
Electricity Supply: 1 Phase, 220 V AC, 2 Amp.
Table for set-up support.
TECHNICAL DETAILS
G.I. Pipe Inner    5 cm dia. Approx.
G.I. pipe middle10 cm dia. Approx.
G.I. Pipe outer    15 cm dia. Approx.
Length of Pipes  60 cm Approx.
Heater    Nichrome Wire
Control panel comprising of
Digital Voltmeter0-300 Volt. (Nutronics Make)
Digital Ammeter0-2 Amp. (Nutronics Make)
Variac    0-230 V, 2 Amp.
Digital Temp. Indicator   0-2000C, with multi-channel switch. (Nutronics make)
Temperature Sensors RTD PT-100 type (6 Nos).
With standard make On/Off switch (L & T make), Mains Indicator etc.
Instruction Manual An ENGLISH instruction manual will be provided along  with the Apparatus
 
 

HEAT TRANSFER FROM A PIN-FIN MAKE: CREATIVE LAB MODEL NO:-CLHT-04
DESCRIPTION:                                                              
The setup is designed to study the heat transfer in a pin fin. It consists of pin type fin fitted in a duct. A fan is provided on one side of duct to conduct experiments under forced draft conditions. Air flow rates can be varied. A heater heats one end of fin and heat flows to another end.  Heat input to the heater is given through Variac. Digital voltmeter and digital ammeter are provided for heat measurement. Digital Temperature Indicator measures temperature distribution along the fin.
EXPERIMENTATION:
To study temperature distribution along the length of fin in both Free & forced convection.
Comparison of theoretical temperature distribution with that of experimentally obtained distribution. 
UTILITIES REQUIRED
Electricity Supply: 1 Phase, 220 V AC, 5 Amp.
Table for set-up support.
TECHNICAL DETAILS
Fin:Pin type.
Material: Brass.
Size: 12.5 mm (approx.) 15 cm. long (approx.).
Duct: Made of MS.
Fan: Standard makes.
Heater: Band type, Nichrome Wire.
Control panel comprising of:
Dimmerstat: 0-230 V, 2 Amp.
Digital Temp. Indicator: 0-2000C, with multi-channel switch
Temperature Sensors: RTD PT-100 type.5 for pin and 1 for duct temperature.
With standard make On/Off switch, Mains Indicator etc.
Instruction Manual: An ENGLISH instruction manual will be provided along  With the Apparatus.
The whole setup is mounted on a powder coated base plate.
 
 

HEAT TRANSFER IN AGITATED VESSEL MAKE: CREATIVE LAB MODEL NO:-CLHT-05
DESCRIPTION:
In most industrial processes including reactors, heat is to be added or extracted to control the process. The addition and removal of heat is done by passing steam or water in a jacket fitted to the outside of the vessel or passing steam or cold water in helical coil inside the vessel. For effective heat transfer and even distribution of heat, the liquid inside is continuously agitated. The present set-up offers us a comparative study of Jacket & Helical coil, which can be operated simultaneously. It is a stainless steel jacketed vessel with helical coil of copper is fitted inside. A variable speed stirrer is fitted in the vessel. Variation in temperature of inside water is measured and is noted. Set-up is fitted with steam traps for condensate collection. Flow rate of water can be controlled and measured using valve and Rotameter. Temperature of inlet and outlet of both hot & cold fluids are measured by temperature sensors.
EXPERIMENTATION:
To determine the overall heat transfer co-efficient for various degree of agitation.
To make a comparative study of Heat Transfer through Jacket & Coil in an agitated vessel.
UTILITIES REQUIRED
Water supply 20 lit/min (approx.) and Drain.
Electricity Supply : 1 Phase, 220 V AC, 5 kW.
Floor area of 1.5m x 1.5m.
TECHNICAL DETAILS
System :Steam to Water
Vessel  Material stainless steel fitted with 4 baffles  Dia. 250, Depth 350 mm (Approx.)
JacketWidth 25 mm. Insulated with ceramic wool and cladded with aluminium foil.
Helical Coil Material Copper, OD 16mm, ID 13mm.
Agitator Stainless steel Impeller fitted on a shaft coupled to a       variable Speed motor and Drive.
Condensate Measurement: Measuring Cylinder & Stopwatch
Water Flow Measurement : Rota meter.
Steam Generator  Made of stainless steel fitted with level indicator, pressure Gauge, safety valve, drain and insulated with ceramic wool & cladding with Aluminium foil.
·       Heaters          Nichrome wire heater (2 Nos.)
Control panel comprising of:
Digital Temp. Controller : 0-199.90C (For Steam Generator)
Digital Temp. Indicator : 0-199.90C, with multi-channel switch
Temperature sensors : RTD PT-100 type.
RPM Indicator  Standard make Digital, Non Contact type.
With standard make On/Off switch, Mains Indicator etc.
Instruction Manual An ENGLISH instruction manual will be providedalong with the Apparatus
 
 

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HEAT TRANSFER IN AGITATED VESSEL MAKE: CREATIVE LAB MODEL NO:-CLHT-05    HEAT TRANSFER FROM A PIN-FIN MAKE: CREATIVE LAB MODEL NO:-CLHT-04    HEAT TRANSFER THROUGH LAGGED PIPE MAKE:-CREATIVE LAB MODELNO: - CLHT-02    HEAT PIPE DEMONSTRATOR MAKE:-CREATIVE LAB MODEL NO: - CLHT-03    HEAT TRANSFER THROUGH COMPOSITE WALL MAKE:-CREATIVE LAB MODELNO: - CLHT-01    
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