Reliant Lab

Current	2 Amp
Diameter	25 mm (approx).
Length	400 mm (approx).
Heater	Nichrome Wire.
Enclosure Size	200 mm x 200 mm x 900 mm
Nichrome heater (cartridge type)	400 watt
Voltage	220 VAC
Brand	Reliant Lab
Model Number	RLHT-102
Phase	Single Phase
Country of Origin	Made in India

The setup consists of a brass tube fitted in a rectangular duct in a vertical position. The duct is open at the top and bottom, and forms an enclosure that serves the purpose of undisturbed surrounding.

One side of the duct is fitted with a transparent acrylic window for Visualization. An electric heating element is kept in the vertical tube that in turns heats the tube surface. The heat is lost from the tube to the surrounding air by natural convection. The temperature of the vertical tube is measure by temperature sensors and displayed by a Digital Temperature Indicator with multi-channel switch. A PID Controller is provided for controlling the heat input. Electronic energy meter will be provided to measure the heat input. The tube surface is polished to minimize the radiation losses.

EXPERIMENTATION

• To determine average heat transfer coefficient under natural convection.
• To Calculate & Plot local heat variation transfer coefficient along the length of the tube

Brand	Reliant Lab
Phase	Single Phase
Current	5-15 Amp
Frequency	50 Hz
Length	500 mm (approx.)
Diameter	30 mm (approx.)
Blower	FHP of Standard make
Model Number	RLHT-103
Voltage	220 VAC
Floor area	1.2 m x 0.5 m
Country of Origin	Made in India

The apparatus consists of blower unit fitted with the test pipe. Nichrome wire heater surrounds the test section. Four Temperature Sensors are embedded on the test section, two placed in the air stream at the entrance and exit of the test section to measure the inlet and outlet air temperature.

Test pipe is connected to the delivery side of the blower along with the orifice to measure flow of air through the pipe. Constant heat flux is given to pipe by an electric heater through a variac and measured by Digital Voltmeter and Digital Ammeter. 

EXPERIMENTATION :

• To determine average surface heat transfer coefficient for a pipe by forced convection.
• Comparison of heat transfer coefficient for different airflow rates and heat flow rates 

Current	5-15 Amp
Test plate Diameter	140 mm (approx.)
Voltage	220 VAC
Phase	Single Phase
Frequency	50 Hz
Black Plate Dia.	140 mm (Approx.)
Enclosure size	55 cm x 30 cm x 30 cm with one side Perspex sheet
Brand	Reliant Lab
Model Number	RLHT-104
Country of Origin	Made in India

The present Set-up is designed to measure the emissivity of test plate. 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 enclosure with one side transparent to ensure steady atmospheric conditions. Temperature Sensors are provided to measure the temperature of each plate and surrounding. Electric Supply is given to heaters through separate variacs and is measured with Digital Voltmeter and Digital Ammeter.

EXPERIMENTATION :

• Determination of the Emissivity of a test plate.
• Study the variation of emissivity of test plate with absolute temperature. 

Usage/Application	Chemical Laboratory
Automation Grade	Automatic
Frequency	50 Hz
Material	MS
Power Source	Electric
Voltage	220 VAC
Test wire	35 gauge or 40 gauges
Brand	Reliant Lab
Floor surface	1m x 1m at working height
Nichrome heater	1 kw capacity - 1 nos.
Cylindrical glass vessel	200 mm diameter, height: 125 mm
Model Number	RLHT-105
Test wire length	10cm.
Country of Origin	Made in India

The apparatus demonstrates the regimes of pool boiling. The test section consists of a test wire surrounded by water of constant temperature. The surface temperature of the test wire is heated by passing current through it. Due to the temperature difference between the wire surface and surroundings, the difference regimes are observed till the burnout point

Heater	Nichrome wire immersion heater 1.5 Kw.
Frequency	50 Hz
Current	15 Amp
Jacket	Dia. 250 mm (approx.) made of Stainless Steel
Water Tank Capacity	Stainless steel 12 L
Test Disc Size	20 mm Dia. x 1.5-mm thickness made of Copper
Brand	Reliant Lab
Model Number	RLHT-106
Phase	Single Phase
Voltage	220 VAC
Hemisphere	Dia.- 200 mm (approx.) made of Copper
Country of Origin	Made in India

The apparatus is designed to determine the Stefan Boltzmann constant. The apparatus consists of a hemisphere fixed to a Bakelite plate, the outer surface of which forms the jacket to heat it. Hot water to heat the hemisphere is obtained form a hot water tank, which is fixed above the hemisphere. The copper test disc is introduced at the center of hemisphere. The temperatures of hemisphere and test disc are measured with the help of temperature sensors.

EXPERIMENTATION :

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

Current	15 Amp
Brand	Reliant Lab
Model Number	RLHT-108
Phase	Single Phase
Frequency	50 Hz
Voltage	220 VAC
Usage	Laboratory
Tube Material	Copper
Tuber Size	ID 16 mm, OD: 19 mm, Length 175 mm
Water supply	2 lit/min (approx.)
Power Source	Electric
Country of Origin	Made in India

Condensation is a phase change heat transfer process occurring in many industrial applications, such as in steam power plants, refrigeration plants etc. Thus this is one of the important heat transfer process as present in mechanical and chemical engineering applications. The condensation of vapour on a surface is of two types: 1. Drop wise Condensation, 2. Film wise Condensation. This setup is designed for determining heat transfer co-efficient of two types of condensation and for visualization of these processes. It consists of a vertical frame. Condensation tubes are fitted inside compact glass cylinder. Steam generator is fitted at the backside of the cylinder. Steam comes directly from generator to the cylinder. Two valves are fitted to control flow rate of water in individual tubes. Digital Temperature Indicator monitors the temperatures. Pressure gauge and Rotameter can observe steam pressure and cold water flow rates respectively. A Digital temperature Controller is provided for controlling the temperature of Steam. Water level indicator is provided in steam generator. Condensate is measured by a measuring cylinder.

EXPERIMENTATION :

• To determine overall heat transfer co efficient for Film wise & Drop wise condensation of steam on a vertical surface.
• Visualization of condensation process in drop wise as well as film wise condition.

Material	Aluminum
Heat Transfer Type	Double Pipe
Usage/Application	For Pharmaceutical Industry
Medium Used	Oil
Flow Type	Cross Flow
Brand	Reliant Lab
Voltage	220 VAC
Model Number	RLHT-109
Floor area	1.5 m x 0.75 m
Current	32 Amp
Frequency	50 Hz
Water supply	5 lit/min (approx.)
Country of Origin	Made in India

Shell and Tube Heat Exchanger are popular in process industries because they occupy less space and offer reasonable temperature drop. The apparatus consists of fabricated shell, inside which tubes with baffles on outer side are fitted. The present set up is a 1-2 heat exchangers, with cold water flows through shell. Valves are provided to control the flow rates of hot and cold water. Flow rates of hot and cold water are measured using Rotameters. A magnetic drive pump is used to circulate the hot water from a re-cycled type water tank, which is fitted with heaters and Digital Temperature Controller.

EXPERIMENTATION :

• To calculate the Rate of Heat Transfer
• To calculate the LMTD.
• To calculate the Overall heat transfer co-efficient. 

Conductivity Range	100 mS/cm
Material	Mild Steel
Voltage	220 VAC
Warranty	1 Year
Phase	Single Phase
Metal Bar Length	440 mm (approx.)
Cooling Water Jacket Diameter	75 mm
Model Number	RLHT-110
Metal Bar Material	Copper
Metal Bar Diameter	25 mm
Cooling Water Jacket Length	125 mm
Insulating shell Length	250 mm
Insulating shell Diameter	200 mm
Brand	Reliant Lab
Country of Origin	Made in India

The experimental set up consists of metal bar, one end of which is heated by an electric heater while the other end of the bar projects inside the cooling water jacket. A cylindrical shell filled with insulating material surrounds the middle portion of the bar. The temperature of the bar is measured at different sections. Heat Input to the heater is given through variac. By varying the heat input rates, data can be obtained. Water at constant rate is circulated through the jacket and its flow rate and temperature rise is noted.

• EXPERIMENTATION :
• To plot the temperature distribution along the length of Bar.
• To determine the thermal conductivity of given bar at various temperatures.
• Determination of thermal conductivity of any metal bar other than the supplied one by proper fitting of the bar in the unit. 

Material	Mild Steel
Conductivity Range	150 mS/cm
Voltage	220 VAC
Warranty	1 Year
Current	2 Amp
Phase	Single Phase
Insulation	Ceramic Wool
Heater (Guard ring)	Dia 100 mm sandwiched between copper plates
Brand	Reliant Lab
Water supply	5 lit/min (approx.)
Model Number	RLHT-111
Liquid Chamber	Dia 165 mm (approx).
Cooling chamber	Made of Aluminum for water circulation
Country of Origin	Made in India

The apparatus is designed to determine thermal conductivity of different liquids. The apparatus consists of a heater. The heater heats a thin layer of liquid. A cooling plate removes heat through liquid layer, ensuring unidirectional heat flow. Temperature is measured across the liquid layer and complete assembly is properly insulated. A proper arrangement for changing the liquids is provided. The whole assembly is kept in a chamber.

EXPERIMENTATION :

• Determination of thermal conductivity of liquid.
• Study of variation of thermal conductivity of liquid with temperature. 

Material	Aluminium
Heat Transfer Type	Double Pipe
Usage/Application	For Dairy Industry
Flow Type	Cross Flow
Medium Used	Air
Automation Grade	Automatic
Brand	Reliant Lab
Current	2 Amp
Phase	Single Phase
Power Source	Electric
Voltage	220 VAC
Model Number	RLHT-113
Country of Origin	Made in India

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 PID Controller is provided for controlling the heat input. Electronic energy meter will be provided to measure 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.
• To check the theoretical values of thermal conductivity with experimental values. 

Material	Mild Steel
Conductivity Range	100 mS/cm
Voltage	220 VAC
Warranty	1 Year
Current	15 Amp
Phase	Single Phase
Brand	Reliant Lab
Inner Sphere	Dia. - 100 mm.
Frequency	50 Hz
Model Number	RLHT-114
Inner Sphere Material	Copper
Country of Origin	Made in India

This apparatus is designed to determine the thermal conductivity of insulating powder. The apparatus consists of two thin walled concentric copper spheres. Inner sphere houses Nichrome Wire heater. Insulating powder is filled between the two spheres. Heat flows radially outwards. Temperature sensors at proper positions are fitted to measure surface temperatures of spheres. Heat input to the heater is given through a variac and measured by Digital Voltmeter & Digital Ammeter. By varying the heat input rates, data can be obtained.

EXPERIMENTATION :

• Determination of thermal conductivity of insulating powder.
• Comparison of thermal Conductivity of insulating powder at different temperatures. 

Material	Aluminium
Heat Transfer Type	Condensers
Usage/Application	For Cosmetics & Personal Care Industry
Flow Type	Cross Flow
Medium Used	Air
Brand	Reliant Lab
Current	15 Amp
Frequency	50 Hz
Model Name/Number	RLHT-115
Phase	Single Phase
Power Source	Electric
Voltage	220 VAC
Water bath capacity	8 L
Bench area	1.0 m x 1.0 m
Water bath mateial	SS
Country of Origin	Made in India

The apparatus consists of a small test cylinder. The cylinder is heated by a constant temperature water bath, till steady state is reached. During heating, temperature of the cylinder is function of time and hence, heating of cylinder is under unsteady state heat transfer. The temperature of cylinder is measured with the help of temperature sensor inserted in the centre. The hot water bath is provided with a heater and is controlled by digital temperature controller. An agitator is also provided to maintain the constant bath temperature.

EXPERIMENTATION

• To calculate the Biot number, Fourier number
• To calculate the heat transfer coefficient.

Material	Aluminium
Usage/Application	For Pharma Industry
Flow Type	Cross Flow
Voltage	220 VAC
Current	32 Amp
Brand	Reliant Lab
Phase	Single Phase
Frequency	50 Hz
Water supply	5 lit/min (approx.) and drain.
Floor area	2 m x 0.6m
Model Number	RLHT-112
Country of Origin	Made in India

Heat exchanger is a device in which heat is transferred from one fluid to another. The apparatus consists of a concentric tube heat exchanger. Hot water flows through inner tube in one direction only and cold water flows through the outer tubes. Direction of cold fluid flow can be changed from parallel or counter to hot water so that unit can be operated as parallel or counter flow heat exchanger. Flow rates of hot and cold water are measured using Rotameters. A magnetic drive pump is used to circulate the hot water from a re-cycled type water tank, which is fitted with heaters and Digital Temperature Controller.

EXPERIMENTATION :

• To calculate the Rate of Heat Transfer
• To calculate heat transfer coeffcient
• To calculate the LMTD.
• To calculate the Overall heat transfer co-efficient.
• To compare the performance of Parallel and Counter flow heat exchanger 

Heater	Band type, Nichrome Wire
Dimmerstat	0-230 V, 2 Amp.
Ammeter	0-2 Amp
Frequency	50 Hz
Duct	Made of MS.
Voltmeter	0-100/200 volts
Model Number	RLHT-101
Phase	Single Phase
Floor area	1.5 m x 0.5 m
Blower	Suitable Capacity Standard make.
Size	Dia. 12.5 mm (approx.), Length 150 mm (approx.).
Duct Size	150 mm x 100 mm x 1000 mm long (approx.)
Brand	Reliant Lab
Voltage	220 VAC
Fin	Pin type
Material	Aluminum, Mild steel & Brass
Country of Origin	Made in India

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 Natural & forced convection.
• Comparison of theoretical temperature distribution with that of experimentally obtained distribution
• Comparison of fins of various material supplied

Brand	Reliant Lab
Model Number	RLHT-107
Phase	Single Phase
Voltage	230 VAC
Floor Area	1 m X 0.5m X 0.5 m height
Heat pipe material	SS
Heat pipe size	30 mm O.D.
Country of Origin	Made in India

Heat pipe is an interesting device, which is used to transfer heat from one location to another. The apparatus consists of three pipes, viz. A heat pipe, copper pipe and stainless steel pipe. Ail the pipes have same physical dimensions. Copper and stainless steel pipes serve the purpose of comparison of heat pipe performance. All pipes are mounted vertically with a band heater at lower end and water filled heat sink at upper end. Nearly isothermal operation of heat pipe is clearly visualized from longitudinal temperature distribution of the pipe.

EXPERIMENTATION

• To study Heat Transfer Phenomenon through Heat Pipe