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CONVECTIVE HEAT TRANSFER IN AIR FLOW
Features
convective heat transfer in heat exchangers with different geometries
 additional heat exchanger models available as accessories
Learning objectives/experiments:
interplay between Nusselt number, Reynolds number and heat flow
measurement of pressure distribution in the air duct and development of the velocity profile
measurement of convective heat transfer in the tube bundle as a function of position
pressure loss across the tube bundle
measurement of convective heat transfer with free convection in the air duct (chimney effect)
Technical Detail 
convective heat transfer with forced convection
air duct with streamlined inlet and windows for observation of the experiments
replaceable tube bundle with two different tube diameters included
 heating element Ø 10mm or Ø 13mm can be used in the tube bundle at any desired position
 air duct allows experiments on free convection and demonstration of the chimney effect
 heating element Ø 10mm can be used in the air duct
 overheat protection for the heating elements
 adjustable air volumetric flow rate movable Pitot tube with pressure gauge for determining a v

RADIAL & LINEAR HEAT CONDUCTION
FEATURES

Investigation of heat conduction in solid bodies

Linear and radial heat conduction
Software for displaying temperature profiles
Learning objectives/experiments
Linear heat conduction (plane wall)
Determination of temperature profiles for different materials
Determination of the temperature profile in case of a disturbance
Determination of the thermal conductivity λ radial heat conduction
Determination of the temperature profile
Determination of the thermal conductivity λ
TECHNICAL DETAIL
Investigation of heat conduction in solid bodies
Experimental setup consisting of experimental unit and display and control unit
Linear heat conduction: 3 measuring objects, heating and cooling element, 9 temperature measuring points radial heat conduction: brass disc with heating and cooling element, 6 temperature measuring points cooling by means of tap water electrical heating element representation of the temperature profiles with software for data acquisition.

ENERGY TRANSFER BY RADIATION
 

ENERGY TRANSFER BY RADIATION
 TECHNICAL DETAIL  
thermal radiator and thermopile for the investigation of thermal radiation light source and luxmeter for the investigation of illuminance absorption plate and reflection plate with thermocouples for the investigation of Kirchhoffs laws adjustable radiant power of thermal radiator and light source3colour filters with holder slit diaphragm luxmeter for measuring illuminance thermo couple for measuring the temperature thermopile for measuring radiant power software for data acquisition

HEAT TRANSFER THROUGH COMPOSITE WALL
DESCRIPTION:
The setup consists of a heater sandwiched between two sets of slabs.  Three types of slabs are provided on either sides of heater, which forms a composite structure. A small hand press frame is provided to ensure the perfect contact between the slabs.  A variac is provided for varying the input to the heater. Digital Voltmeter and Digital Ammeter display the heat input. 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 experiment can be conducted at various values of heat input and calculation can be made accordingly.
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 Voltmeter              :               0-300 Volts. (Nutronics Make)
Digital Ammeter               :               0-2 Amp. (Nutronics Make)
Variac                                    :                0-230 V, 2 Amp.
Digital Temp. Indicator:                 0-2000C, with multi-channel switch
Temp. Sensors                  :               RTD PT-100 type. (8 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.
Cabinet to accommodate the slab assembly with front window of glass/acrylic.
The whole set-up is mounted on a powder coated base plate.

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HEAT TRANSFER THROUGH COMPOSITE WALL    ENERGY TRANSFER BY RADIATION     ENERGY TRANSFER BY RADIATION    RADIAL & LINEAR HEAT CONDUCTION    CONVECTIVE HEAT TRANSFER IN AIR FLOW    
Categories
 Chemical Reaction Engineering Lab
 Environmental Engineering
 Fluid Machinery Lab
 Fluid Mechanics Lab
 Heat Transfer Lab.
 Hydraulic Lab.
 Mass Transfer Lab.
 Mechanical Operation Lab.
 Momentum Transfer Lab.
 Process Control & Inst. Lab.
 Refrigeration & Air Conditioning Lab.
 Strength of Material Lab
 Theory of Machine Lab
 Theory of Machine Lab.
 Thermo Dynamics Lab.
 
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