Heat Transfer Lab Equipments

Emissivity Measurement Apparatus is the client-centric approach and market enterprise has betrothed our firm to manufacture, export and supply an excellent quality assortment of Emissivity Measurement Apparatus which is used to measure the property of emissivity of the test plate surface at various temperatures. The provided apparatus is highly applauded in the market for its accurate results, high performance and good service backup. The offered apparatus is manufactured by our dexterous professionals using superior grade components and leading edge techniques in adherence with international quality standards.

Additional Information:

Item Code: ELSHADDAI-HT-008

Minimum Order Quantity: 1 Number

Product Details:

• Inner sphere : 100mm dia, copper
• Outer sphere : 200mm dia, copper
• Heater : Round type, Mica heater 100mm
• Digital Voltmeter : 0-300V
• Digital Ammeter : 0-20A
• Digital Temp Indicator: 0-1200°c (12 channel) with selector switch
• Thermocouples : (K-type)-sensors 12 nos.
• Insulating powder : MGO powder
• Switch : 15 amps

Additional Information:

Item Code: ELSHADDAI-HT-006

• Compressor : Brand new 1 HP
• Condenser fan : Air cooled
• Thermostat : 5 degree C to 15 degree C
• Evaporator : 10 Liters capacity
• Pressure &Vacuum Compound gauge : any available brand
• Temperature Measurement : Digital Temperature indicator is provided to measure temperature of refrigerant and water.
• Voltmeter : 0-300 V
• Ammeter : 0-20 A

Additional Information:

Item Code: ELSHADDAI-HT-002

Minimum Order Quantity: 1 Number

Air- Conditioning Test Rig

To study the Volumetric Efficiency of Compressor. Both Single stage compressor and Two stage compressor can be used. The setup consists of 6 channel digital temperature indicator with an energy meter and U Tube Manometer.

Additional Information:

Item Code: ELSHADDAI-HT-015

Minimum Order Quantity: 1 Number

Fluidized Bed Cooling Tower
To study the Volumetric Efficiency of Compressor. Both Single stage compressor and Two stage compressor can be used. The setup consists of 6 channel digital temperature indicator with an energy meter and U Tube Manometer.

Additional Information:

Item Code: ELSHADDAI-HT-009

Minimum Order Quantity: 1 Number

• Long life
• Trouble free performance
• Sturdy

Additional Information:

Item Code: ELSHADDAI-HT-001

Minimum Order Quantity: 1 Number

Heat Pipe Apparatus
The heat pipe demonstrator has been designed and developed to reveal clearly the superconducting device. It consists of three identical cylindrical conductors. 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. Thermocouples are embedded along the lengths to measure the temperature distribution and the heat transfer rate is noted in terms of the temperature rise in the heat sink tanks. The performance of the heat pipe as a super-conducting device could be studied well in terms of the temperature distribution along the length at a given instant and could 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.

Additional Information:

Minimum Order Quantity: 1 Number

• Efficient
• Designed elegantly
• Mesmerizing range

Additional Information:

Item Code: ELSHADDAI-HT-003

Minimum Order Quantity: 1 Number

• Reckoned for its smooth functioning
• Completely tested
• Competitive prices

Additional Information:

Item Code: ELSHADDAI-HT-014

The apparatus consists of a brass rod, one end of which is heated by an electric heating coil while the other end projects into the cooling water jacket. The rod is insulated with glass wool to minimize the radiation and convection loss from the surface of the rod and thus ensure nearly constant temperature gradient throughout the length of the rod. The temperature of the rod is measured at five different locations along the length. The heater is provided with a dimmer stat for controlling the heat input. Water is circulated through the jacket and its flow rate and temperature rise can be measured

• Compressor : Double Stage, Double Cylinder.
• Capacity 6.9 CFM max.
• Working Pressure : Max. 7 kg/cm2
• Motor : 2 HP Crompton/Standard make, Swinging Field type
• Spring Balance : 10 kg, Dial type
• Flow Measurement : Orificemeter with Manometer
• Temperature Measurement : RTD PT-100 type sensor (4 nos.)
• Air Tank : Capacity 150 Ltrs. with safety valve, shut off valve
• Pressure Gauge : Bourdon Type
• RPM measurement : RPM Indicator with Proximity sensor
• MCB : For overload protection

• 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 Heater.
• The slab assembly with front window of glass/acrylic.
• The whole set-up is ingeniously designed and schematically arranged on a powder-coated rigid structure.

• Digital Voltmeter : 0-300 Volts.
• Digital Ammeter : 0-2 Amp.
• Variac : 0-230 V, 2Amp.
• Digital Temp. Indicator : 0-200⁰C, with multi-channel switch
• Temp Sensors : RTD PT-100 type.
• Standard make On/Off switch, Mains Indicator etc.

• The test plate comprises of a mica heater sandwiched between two circular plates. Black plate is identical with test plate, but its surface is blackened. As all the physical properties, dimension and temperature are equal; heat losses from both plates will be same except radiation loss. Hence the input difference will be due to difference in emissivity. Both plates are supported on individual brackets in a wooden enclosure with one side glass to ensure steady atmospheric conditions. Temperature Sensors are provided to measure the temperature of each plate and surrounding. 
• Supply is given to heaters through separate variacs so that temperatures of both can be kept equal and is measured with Digital Voltmeter and Digital Ammeter. Experiments Determining the Emissivity of a test plate. Study the variation of emissivity of test plate with respect to absolute temperature. 
• Utilities Required Electricity Supply: 1Phase, 220 VAC, 4 Amp. Table for set-up support 

Cooling Tower:  
Dia:1000mm; Height:1800mm;
Motor:0.5HP (Sabar/Shaarrc/Lhp/Hindustan)  

A double pipe heat exchanger can be operated in parallel flow mode as shown in the diagram at the left. Similarly a shell and tube heat exchanger can be operated in approximately parallel flow by having both fluids enter at one end and exit at the other end. With parallel flow the temperature difference between the two fluids is large at the entrance end, but it becomes small at the exit end as the two fluid temperatures approach each other. The overall measure of heat transfer driving force, the log mean temperature difference is greater for counter flow, so the heat exchanger surface area requirement will be larger than for a counter flow heat exchanger with the same inlet and outlet temperatures for the hot and the cold fluid.

• Maximum cold fluid temperature - If we want to ensure that the temperature of the cold fluid never exceeds a particular temperature, then cocurrent exchanger designs are advantageous due to their inbuilt restriction to this effect.
• Fast heat transfer - Let's inspect the temperatures at location A. The temperature difference between the hot and cold streams at this location is very large in the cocurrent design. In fact, it's the largest possible temperature difference achievable! Since the heat transfer rate is directly proportional to the temperature difference, the heat transfer rate will also be maximum here. Therefore, to achieve fast heat transfer away from thermal equilibrium conditions, parallel flow configurations will perform better.
• Isothermal heat transfer - Suppose one of the two interacting fluids is undergoing a phase change due to the heat transfer (e.g. condensation of saturated steam), then both designs are identical. In this case, there is no change in temperature for one of the two streams and hence, no difference in the performance between configurations.

The product consists :

• Test disc are measured with the help of temperature sensors
• The copper test disc is introduced at the center of hemisphere
• Hot water to heat the hemisphere is obtained form a hot water tank
• A hemisphere fixed to a Bakelite plate, the outer surface of which forms the jacket to heat it

Experiments :

• Determination of Stefan Boltzmann constant and study the effect of hemisphere temperature on it.

Utilities Required :

• Electricity Supply : 1 Phase, 220 V AC, 2 KW
• Table for Set-up support.

Specifications

Other properties possible with this Apparatus

• Adiabatic Compressibility
• Acoustic Impedance
• Characterization of Nanofluids/Suspensions
• Characterization of Ferro/Magnetic Nanofluids
• Intermolecular Free Length