Laborate Star

We are a leading manufacturer and supplier of Finned Tube Heat Exchangers, known for their high efficiency and reliable performance. These heat exchangers are designed to be energy-efficient and require significantly less maintenance compared to conventional models. The product offers excellent durability along with a smooth and high-quality finish. It is manufactured using premium-grade raw materials sourced from trusted vendors and developed with the help of advanced technology to ensure superior performance and long service life.

Learning Objectives / Experiments:

• To calculate the Log Mean Temperature Difference (LMTD)
• To determine the heat transfer rate
• To evaluate the overall heat transfer coefficient

Requirements for Operation:

• Continuous water supply at a constant head
• Floor drainage system
• Hot water tank made of double-wall stainless steel, insulated with ceramic wool
• Hot water circulation system using a polypropylene magnetic pump, capable of operating up to 85°C

The complete setup is intelligently designed and systematically arranged on a sturdy, powder-coated rigid frame for durability and ease of operation.

Shell and tube type condensers are extensively used across a wide range of industries for efficient heat transfer and condensation processes. The present experimental setup is designed to facilitate a comparative study between vertical and horizontal condensers, which can be operated individually as per requirement.

The condenser unit consists of a stainless steel shell enclosing a bundle of stainless steel tubes, ensuring durability, corrosion resistance, and efficient heat transfer. In this system, the cold fluid flows through the inner tubes, while steam is introduced into the shell side, where it undergoes condensation.

To ensure precise control and flexibility during operation, valves are provided to regulate the flow rates of the cold fluid. The flow rate of the cooling water is accurately measured using a rotameter. The shell is equipped with steam traps to efficiently remove condensate, which is then collected in a measuring cylinder for analysis.

Temperature sensors are strategically installed to measure the inlet and outlet temperatures of both hot (steam) and cold fluids, enabling accurate monitoring of thermal performance. The entire setup is designed to provide clear insights into heat transfer characteristics under different orientations, making it highly suitable for laboratory and educational purposes.

Learning Objectives / Experiments:

• To determine the overall heat transfer coefficient for both vertical and horizontal condensers
• To evaluate the film heat transfer coefficients on the shell side and tube side
• To compare the thermal performance of vertical and horizontal condenser configurations
• To analyze the effect of flow conditions on condensation and heat transfer efficiency

A heat exchanger is a device designed to transfer heat from one fluid to another efficiently. The present apparatus consists of a fabricated stainless steel (SS) shell containing SS tubes arranged horizontally. Hot water flows through the tubes in a single direction, while cold water passes over the tubes in a perpendicular direction, entering at the bottom and exiting at the top.

The flow rates of both hot and cold water are measured using rotameters for accurate monitoring. A magnetic drive pump circulates hot water from a recirculating storage tank, which is equipped with electrical heaters and a digital temperature controller to maintain the desired temperature. This setup enables controlled experimentation and precise measurement of heat transfer performance.

Learning Objectives / Experiments:

• To calculate the rate of heat transfer between hot and cold fluids
• To determine the Log Mean Temperature Difference (LMTD) for the heat exchanger
• To evaluate the overall heat transfer coefficient under steady-state operating conditions

The setup is designed to study heat transfer in a pin fin under controlled conditions. The apparatus consists of a pin-type fin mounted inside a duct. A fan is provided at one end of the duct to create forced airflow, allowing experiments to be conducted under varying air flow rates.

One end of the fin is heated using an electrical heater, while heat flows along the fin toward the other end. The heat input to the heater is controlled using a variac, and the supplied electrical energy is measured accurately using a digital voltmeter and digital ammeter.

A digital temperature indicator is used to measure the temperature distribution along the length of the fin, enabling detailed analysis of heat transfer characteristics under different operating conditions.

The Open Pan Evaporator is a process equipment used to concentrate a solution by vaporizing a portion or all of the solvent, which is typically water. This setup is designed to study the fundamental principles of the evaporation process.

The apparatus consists of a jacketed stainless steel pan evaporator and an electrically heated steam generator of appropriate capacity. Steam is supplied to the jacket through a control valve to provide the necessary heat for evaporation. Condensate from the jacket is collected via a steam trap, allowing for energy measurements.

The pan is equipped with a worm gear tilting mechanism, enabling safe and easy discharge of the concentrated solution after the evaporation process. This setup allows controlled experimentation under various operational conditions.

Learning Objectives / Experiments:

• To determine the overall heat transfer coefficient under unsteady-state conditions at different temperatures
• To evaluate the heat transfer coefficient at the boiling point of the solution

Evaporation is a process used to concentrate a non-volatile solute in a solution by removing a required amount of volatile solvent, typically water. During this process, part of the solvent is vaporized, resulting in a concentrated product (thick liquor), while the generated vapour is separated and removed.

Long tube evaporators are commonly used for concentrating solutions, especially those that tend to form foam. The present setup consists of two evaporators arranged in series, enabling improved efficiency through multiple-effect operation. Each evaporator is constructed with stainless steel tubes enclosed within a stainless steel jacket and is equipped with an accumulator.

The dilute solution is first fed into the primary evaporator. Steam from a steam generator is supplied to provide the necessary heat for concentrating the solution to the desired level. The jacket is fitted with a steam trap to remove condensate, which is collected at the outlet.

The vapours generated in the first evaporator are utilized as the heating medium for the second evaporator, enhancing energy efficiency. Finally, the vapours of the volatile solvent are condensed in a shell-and-tube condenser, while the remaining concentrated non-volatile solution collected in the accumulator is recirculated through the system for further concentration. The setup is designed for continuous operation and effective heat utilization.

Learning Objectives / Experiments:

• To concentrate a solution using a multiple-effect evaporation system under steady-state conditions
• To perform material and heat balance calculations
• To determine the economy and capacity of the evaporator for different feeding arrangements
• To evaluate the overall heat transfer coefficient

A heat exchanger is a device used to transfer heat from one fluid to another without mixing them. The present apparatus consists of a concentric tube heat exchanger, designed for effective heat transfer analysis. In this setup, hot water flows through the inner tube, while cold water flows through the annular space between the inner and outer tubes.

The direction of the cold fluid flow can be adjusted to operate either in parallel flow or counter flow configuration with respect to the hot water. This flexibility allows for comparative performance analysis under different flow arrangements.

The flow rates of both hot and cold water are measured using rotameters for accurate monitoring. A magnetic drive pump is used to circulate hot water from a recirculating storage tank. The tank is equipped with electrical heaters and a digital temperature controller to maintain the desired temperature of the hot fluid throughout the experiment.

Learning Objectives / Experiments:

• To calculate the rate of heat transfer for both parallel flow and counter flow arrangements
• To determine the Log Mean Temperature Difference (LMTD) for each configuration
• To evaluate the overall heat transfer coefficient under different flow conditions
• To compare the thermal performance of parallel flow and counter flow heat exchangers

Evaporation is a process used to concentrate a non-volatile solute in a solution by removing a portion of the volatile solvent, typically water. During this process, the solvent is vaporized, resulting in a concentrated solution (thick liquor), while the generated vapour is separated and removed.

Long tube evaporators are commonly employed for concentrating solutions, particularly those that tend to form foam. The present setup consists of stainless steel tubes enclosed within a stainless steel jacket and connected to an accumulator. The dilute solution is fed into the tubes, where it undergoes heating.

Steam generated from a steam generator is supplied to the shell side (jacket) to provide the necessary heat for evaporation, thereby concentrating the feed solution to the desired level. The jacket is equipped with a steam trap to remove condensate, which is collected at the outlet of the trap.

The vapours of the volatile solvent are directed to a shell-and-tube condenser, where they are condensed. The remaining concentrated, non-volatile solution collected in the accumulator is recirculated through the evaporator to achieve the required concentration. The entire system is designed for continuous operation and effective heat transfer.

Learning Objectives / Experiments:

• To concentrate a solution using an evaporator under steady-state conditions
• To perform material and heat balance calculations for the system
• To determine the economy and capacity of the evaporator
• To evaluate the overall heat transfer coefficient

• 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 the heat pipe with the copper pipe as a good conductor of heat and with the stainless steel pipe as the 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 reveal the heat pipe superiority over the conventional conductors.
• The whole set-up is ingeniously designed and schematically arranged on a powder-coated rigid structure

• To demonstrate the super thermal conductivity of Heat Pipe and to compare its working with the best conductor i.e. Copper pipe & Stainless steel pipe as the same material of construction.
• To plot the temperature v/s time response of pipes.
• To plot the temperature distribution along the length of pipes

The Heat Transfer Through Composite Wall apparatus is designed to study heat conduction across a multi-layer structure. The setup consists of an էլectrical heater sandwiched between two sets of slabs, forming a composite wall. Three different types of slabs are arranged on each side of the heater to create a layered configuration for analysis.

A hand-operated press frame is provided to ensure proper and uniform contact between the slabs, minimizing thermal contact resistance. The heat input to the system is controlled using a variac, while a digital voltmeter and ammeter are used to measure the electrical input supplied to the heater.

The heat generated by the heater flows axially in both directions through the composite structure. Temperature sensors are embedded at the interfaces of the slabs to measure temperature distribution and evaluate the temperature gradient across the wall. The experiment can be conducted at different heat input levels to analyze the variation in thermal behavior under steady-state conditions.

Learning Objectives / Experiments:

• To determine the total thermal resistance of the composite wall
• To evaluate the thermal conductivity of different materials in the composite structure
• To plot and analyze the temperature gradient across the composite wall

The setup consists of a vertical glass column filled with packing material, through which air is introduced at the bottom. The airflow rate is measured using an orifice meter in combination with a manometer. A cylindrical heater, constructed with Nichrome wire, is embedded within the bed to provide controlled heating to the air. The heat input is regulated through a digital temperature controller for precise operation.

Temperature sensors are installed at the inlet and outlet of the air stream to monitor temperature changes and study the thermal behavior of the system.

The Heat Transfer Through Lagged Pipe apparatus is designed to study the phenomenon of thermal insulation (lagging) in cylindrical systems. The setup consists of three concentric pipes with relatively small thickness compared to their diameters, arranged coaxially and enclosed at both ends with circular discs.

The annular spaces between the pipes are filled with two different insulating materials, forming a composite cylindrical structure. Temperature sensors are strategically installed along the pipe walls to measure temperatures at various radial positions, enabling the study of radial heat flow through the system.

A Nichrome wire heater is placed axially inside the innermost pipe to generate heat. The heat input is controlled using a variac and is accurately measured using a digital voltmeter and ammeter. This arrangement allows for controlled experimentation and analysis of heat transfer through insulated cylindrical layers.

Learning Objectives / Experiments:

• To estimate the actual rate of heat transfer through composite cylinders using the measured interface temperatures and known thermal conductivities of insulating materials
• To determine the effective thermal conductivity of the composite cylindrical system
• To compare the theoretical temperature distribution within the composite cylinders with the experimentally observed temperature profile