Categories Fin Tube Heat Exchanger

Finned Tube Heat Exchanger An Brief Overview

Fin Tube Heat Exchanger

In this hot summer, we are sitting in a chilled room. Have you ever thought about how it is possible? That is because of heat exchangers. Heat exchanger applications are not only in domestic appliances but also in crucial industrial manufacturing sectors. They transfer heat between hot and cold streams to save energy. A heat exchanger with fins attached to the outer tube is known as a Finned Tube Heat Exchanger. In these heat exchangers, fins increase the surface area for heat transfer, which increases the rate of heat exchange.

What are Finned Tube Heat Exchangers?

Finned tube heat exchangers are the type of heat exchangers in which fins are attached to the outer tube of the exchanger. Adding fins facilitates the transfer of fluid outside the tube. It is for the transfer of air or another gas. 

In a finned tube heat exchanger, an overall flow pattern is often crossflow, but it can also be counterflow or parallel flow.

A finned tube is very helpful as one of the fluids is air or any other gas in an air heat exchanger. There is a low air-side heat transfer coefficient, which increases the surface area of heat transfer.


Why Finned Tube Heat Exchangers are made of Aluminum?

  • Aluminum is a lightweight metal than heavier metals like stainless steel or copper. In the case of radiators, the lightweight material improves the performance of the equipment.
  • Aluminum is a great heat conductor, making it an excellent choice for radiators. While comparing to other materials, aluminum radiators heat efficiently and quickly reach the necessary temperature.
  • It is a recyclable metal. So by buying aluminum radiators or fin tubes, you are getting an eco-friendly product.

Working Principle Of Finned Tube Heat Exchangers

In a finned tube heat exchanger, fins are outside the tubes. The liquid will flow through the finned tube with air or another gas flowing outside, increasing the heat transfer rate due to the greater heat transfer surface area.

The fins on a crossflow tube exchanger are usually circular or square radial fins. Fins should be longitudinal rather than radial in a counterflow or can be parallel flow fin tube exchangers. In an enclosed heat exchanger, finned tubes work as internal tubes. 

Uses Of Finned Tube Heat Exchanger

  • Finned tube heat exchangers are helpful in the condition where the heat transfer coefficient inside the fluid is higher than the fluid outside the tube. 
  • Other finned tube air heat exchangers include automobile radiators. The truck radiator‘s job is to cool the hot water in the tubes by circulating air through them in a crossflow pattern. Also, the objective of the air conditioner evaporator coil is to condense the air traveling through it.
  • Finned tube heat exchangers are helpful in the chemical industry, petrochemical industry, automobile (heavy truck radiators, car radiators) industry, etc.
  • Recent developments have seen dry cooling for steam power plants grow rapidly. In this method, an air-cooled condenser replaces a water-cooled condenser.
  • For different purposes, the shapes and sizes of fins are unique, like- S-shaped fins to increase the surface area for heat exchange in heavy truck radiators to increase the heat transfer rate. Therefore, these are the best truck radiators in use nowadays.

Post Related: Fin Tube Heat Exchanger: 6 Tips On How To Choose Your Most Suitable


One of the most emphatic discoveries in increasing tube heat transfer is the finned tube heat exchanger. The increased surface area allows a faster heat transfer between two components. Moreover, finned tube heat exchangers are advantageous for various industries like power, petrochemical, chemical, air conditioning, truck radiators( heavy truck radiators), and refrigeration.

At Narain Cooling Pvt. Ltd, we provide finned tubes made up of aluminum. Aluminum is the lightest and most recyclable metal. As a result, when you buy an aluminum radiator, you’re also getting an environmentally beneficial heat exchanger. They can pass on down the generations. You may obtain high-quality aluminum radiators made entirely of recycled material from Narain Cooling.


Categories Condenser & Radiator

Microchannel Condenser And Their 3 Types You Should Know

Microchannel Condenser

What is a Microchannel Condenser?

In layman’s terms, a  microchannel condenser is a device that cools the temperature down. It is an object that tries to the condenser, to convert the state of a gas or a vapour into liquid. Also, it releases a concealed form of heat that plays a role in the conversion of states without changing the temperature. 

Where Is The Microchannel Condenser Coil Used?

These Condensers are used in various industries, objects and places – gas pipelines, boilers, air conditioners, chemical industries, steam power plants, chemical processes- distillation, Rankine cycle, etc.

Who Are The Manufacturers of Microchannel Condensers?

There are various manufacturers that produce condensers. Narain Cooling, one of the best manufacturers of condensers, produces them with a 100% guarantee of good quality. 

Types of Microchannel Condensers Coils

There are three main types of Condensers that are categorized on the basis of an external object they use as an agent to carry forward the process.

  • Air-Cooled – As the name suggests, this type of condenser uses air to release the heat present inside the tube in the form of vapour or steam. A visual reference can help to understand this in a better way.

           Further, the air-cooled condenser is sub-categorized into two kinds –

  1. Natural convectionHere, natural environmental air comes in contact with the coils present inside a machine and is used to produce cool air. This cool air replaces the warm air and hence continues the process of heat exchange.

They are made up of iron, steel and copper. The flow rate of the air is not that powerful because it is natural. Hence, it is used in the refrigeration systems that we use in our homes.

  1. Forced ConvectionAs the name suggests, this type of air condenser will use an external object for the inflow of air to go ahead with the process of heat exchange. 
  • Advantages of Air Cooled Condenser 
    • It has a low initial cost.
    • It requires less flow area.
    • It requires less cooling water.
    • It has low maintenance charges
  • Water-Cooled – As you can understand from its name, the water-cooled condenser uses water as an agent to release heat from the refrigerant. Water flowing through the tube exchanges the heat from the refrigerant vapour and then releases that heat through the outlet area.

They are used in the large refrigerating industries. Further, it has three sub-categories

  1. Double tube – A water tube is present inside the refrigerant tube.
  2. Shell and Coil Condenser – There is a coil of finned water tubing which is covered with a shell
  3. Shell and Tube Condenser – Here, the water tubes are present in a cylindrical shell, where the water is driven through the pipes and the refrigerant flows in the shell.
  • Evaporative It comprises a kind of pit through which the water is sprayed on the heated coil from above, and from the other side, the fan blows cool air from the bottom. Thus, both work simultaneously to discharge the hot air into the atmosphere.

It consumes less power as compared to the air-cooled and water-cooled condenser. It is mainly used in large cooling systems or where the external temperature is high.

Post Related: OverView Of Microchannel Condenser 

Searching For a Trusted Microchannel Condenser Coils Manufacturer?

Your search is now over Narain cooling bringing you its Parallel Flow (PF) Air-cooled condensers (Micro Channel Condenser) and automotive condensers for heat ventilation and Air Conditioning (HVAC) applications.

We believe in providing the best quality product to our customers,  Being in this profession for more than 8 years has given us experience and has taught us to deal with customers and resolve their issues. 

As a Micro Channel Condenser Manufacturer, we use supreme manufacturing technology and raw materials to make our product powerful and durable. Trusting Narain Cooling will give you a stress-free life, with no mess of product damage, and timely services.



Categories PTC Heater

Application Of Positive Temperature Coefficient Heaters In Varied Sectors

Positive Temperature Coefficient

The massive requirement for a heating appliance in the industrial and various sectors meant less use of the traditional Ptc heater, which blows wire or tube for generating heat. This process takes a lot of electricity consumption and has high maintenance charges. But nowadays, the traditional heaters are replaced by Positive Temperature Coefficient (PTC) heaters. 

They are built with modern technology and are highly reliable for use in various sectors as heating agents. It consumes less electricity and provides better output than the traditional heater, and more importantly is its uptime, where the coil of the traditional heater will melt after prolonged use. This Positive Temperature Coefficient (PTC) heaters can provide up to 30,000 hours of long life.

Benefits of Positive Temperature Coefficient (PTC) heaters

It can perform more effectively in small places and provide superior heat. It has several practical applications in various industrial and commercial uses too. We have researched a lot and put some of its applications. Here are they: 

Anti-condensation agent

(PTC) heaters are super reliable and durable, and they have some fantastic properties, including dehumidification and anti-condensation properties. These properties will make the (PTC) heaters the best for food processing, food safety, and security of beverages in high-moisture places. 

It provides continuous warm heat to the food and keeps them dehydrated, and this will not allow any food reaction to occur with moisture. Without the heating, food gets spoiled during the process, and manufacturers face massive losses. 

Automotive industry

Using the traditional automotive hearing methods is slow and steady. More importantly, they are much more expensive. Also, they will consume the oxygen and cooling of the area, which leads to suffocation and anxiety. 

But now, the problem is resolved by using the Positive Temperature Coefficient (PTC) heaters. They are the best alternative for the solution and provide the most effective remedy. Now, all the automotive manufacturers are using these heaters and saving a lot of money and effects. 

Heating food and beverages industries

One of the most common applications of (PTC) heaters is their use in the food and beverage industries. They are used for controlling the temperature of various food processing uses and heating a few places. It is used as a healing agent in hot coffee plates, temperature-controlled containers, food warmers, etc. They are consistent and can perform the heating non-stop for several hours. 

What Is Unique About PTC Devices?

PTC heaters cannot overheat. These unique factors make the device self-limiting as its resistance increases, allowing the current through the device to decrease. They can also be considered self-controlling. 

If the ambient temperature starts to decrease, the resistance of the heater will decrease, drawing more current and counteracting the cooling trend. 

Positive Temperature Coefficient (PTC) heaters can be busy both from the file market or online platforms, and we recommend you buy them online. You will get proper documentation, authentic product, and more importantly, you are not supposed to go anywhere, and you get your order at your home. 

For more info read also: PTC heater

Takeaway Points

There are many other applications of Positive Temperature Coefficient (PTC) heaters in cold regions. People used to install these heaters under beds which provide heat throughout the night, especially in army camps and shelters. These heaters are a revolution in the industrial sectors, and these applications will make them one of the most important things to install while setting up any industry.


Categories Condenser & Radiator

Microchannel Condensers: An Brief Overview

micro channel condenser

In the HVAC (Heating, Ventilation, and Air Conditioning) industry, we are pioneers in the design and manufacture of Parallel Flow microchannel condensers and automotive condensers.

The range of PF condensers caters to a wide range of cooling requirements, from small window air conditioners to large packaged air conditioners.

Compared to Copper Tube Aluminium Fin (CTAF) condensers, PF condensers offer better heat transfer and corrosion resistance. As a result, HVAC appliances will have a higher EER and Star rating.

Microchannel condenser product is a highly compact heat exchanger, which has the characteristics of compact shape, high heat exchange efficiency, lightweight, and high reliability, and is the most potent product.

There are dozens of fine flow channels in the flat tube of this heat exchanger, which are connected with circular headers at both ends of the flat tube. A baffle plate is arranged in the header to separate the flow channel of the heat exchanger into several processes.

Benefits Of Microchannel Condensers

  1. It strengthens heat transfer and improves heat transfer efficiency
  2. It reduces the volume of the heat exchanger
  3. Reduced refrigerant injection

Micro-microchannel heat exchangers are a class of compact, lightweight, and efficient heat exchangers designed to meet the needs of the development of the electronics industry. 

Application Advantages Of Microchannel Heat exchanger

Following are the advantages of employing Microchannel Condensers:

Energy Saving

Energy saving is an essential indicator of today’s air conditioners. It is difficult for conventional heat exchangers to produce products with high energy efficiency standards, such as Class I, and microchannel heat exchangers will be the best choice to solve this problem.

Outstanding Heat Exchange Performance

In household air conditioners, when the channel size is less than 3mm, the law of gas-liquid two-phase flow and phase change heat transfer will differ from the larger size: the smaller the channel, the more pronounced the size effect. When the inner diameter of the tube is as tiny as 0.5~1mm, the convective heat transfer coefficient can be increased by 50%~100%. 

Applying this enhanced heat transfer technology to air-conditioning heat exchangers and appropriately changing the heat exchanger structure, process, and air-side enhanced heat transfer measures are expected to effectively enhance the heat transfer of air-conditioning heat exchangers and improve their energy-saving levels.

Promotion Potential

Micro-channel heat exchanger technology also has the potential to be promoted to air-energy water heaters in the field of air-conditioning manufacturing, which can significantly enhance the competitiveness of products and the sustainable development of enterprises.

Compared with conventional heat exchangers, microchannel heat exchangers are not only small in size, significant in heat transfer coefficient, high in heat exchange efficiency, and can meet higher energy efficiency standards, but also have excellent pressure resistance performance.

Environmental Benefits

Environmental protection requirements have aroused extensive attention from academia and industry at a global level, and the emergence of smart products that save energy is a must these days. The critical technology of microchannel heat exchanger—the production method of microchannel parallel flow tube has gradually been manufactured in our factories, making the large-scale use of microchannel heat exchanger possible.

Applications In Microelectronics And Other Fields

The field of microelectronics is developing rapidly following Moore’s Law. With the continuous improvement of transistor integration, the thermal density of high-speed electronic devices has reached 5~10MW/m2, and heat dissipation has become the primary “bottleneck” of its development. 

Microchannel heat exchangers replace traditional heat exchangers, and thermal installations have become an inevitable trend. Therefore, microchannel heat exchangers will have broad application prospects in many fields such as aerospace, modern medicine, chemical, and biological engineering, which are highly dependent on embedded technology and high-performance computing.


Categories Fin Tube Heat Exchanger

Fin Tube Radiator: An Overview You Need To Know

fin tube radiator

However, you may wonder what the purpose of these fin tubes is and why these fin tubes are used in the exchangers. The Fin Tube Radiator is generally used in Heat Exchangers. This piece of thread will clear all your doubts about the usage, structure, and working of the Radiator.

What Are Fin Tubes?

A finned tube is made from elongated flat tubes made from aluminum-clad carbon steel and brazed aluminum fins. The finned tube radiator is the most widely used heat exchange equipment in gas and liquid heat exchangers. It achieves the purpose of enhancing heat transfer by adding fins to the standard base tube. These heat-transmitting fin tubes are nestled inside the casing, which consists of steel plating and insulation.

The base pipe can be steel pipe- stainless steel pipe, copper pipe, and so on. Fins can also use steel strips, stainless steel strips, copper strips, aluminum strips, etc.

Fin tube heat exchangers are used in household appliances and industrial heat exchangers, while car radiators and air conditioners use Fin tube heat exchangers.

The main reason to employ a fin tube is that the air passing through the tube is supposed to be cooled.

As in a car radiator, the air passes through the tube in crossflow. This supports cooling the liquid inside, and the advantage of fins over ordinary tubes is that they provide more significant contact with the liquid outside. Also, this allows for quicker heat exchange between the inside and outside of the tube.  

Uses Of Fin Tube Radiator

  • A finned tube is extremely helpful when the airside heat coefficient is lower, and as a finned tube increases surface area, this facilitates faster heat transfer between components.
  • The most widely used finned radiator is the steel-aluminum finned tube (finned steel-aluminum composite finned tube, rolled finned steel-aluminum composite finned tube), which utilizes the pressure resistance of the steel tube and the high efficiency of aluminum. The thermal conductivity is compounded on a particular machine tool. 
  • The steel-aluminum composite tube radiator has irreplaceable advantages over other finned tube radiators.
  • The finned tube radiator is generally used for heating or cooling air and has the characteristics of a compact structure and large unit heat exchange area. Widely used in textile, printing and dyeing, petroleum, chemical, drying, electric power, and other fields.

Why Choose Narain Cooling?

We manufacture aluminum products of the highest quality in our Mathura manufacturing unit with the most advanced equipment and dedicated professionals.

You will get the best build quality of a fin tube radiator from Narain Cooling. Our company is proud to be the only manufacturer of Aluminium Brazed products in the region of India and offer our clients the leading edge in automotive and industrial aluminum radiators, oil coolers, and intercoolers, which are designed for manufacture by original equipment manufacturers and aftermarket sales for the local market to meet the demand for Brazed Aluminium technology for new-generation vehicles and industrial applications.

Highlights Of Our Finned Tube 

Following are the key points of the Finned Tube radiator  offered by Narain Cooling:

  • We provide several Fin geometries
  • Narain Cooling has there own design facility and research and development team
  • The Finned Tube radiator  is a compact, anti-corrosive and Light-weighted
  • Varying core proportions utilizing standard parts
  • It provides a more efficient transfer of heat.

Our work is conducted with the psychology of protecting the environment and performing eco-friendly practices while manufacturing our products.

Narain Cooling Technologies has developed a wide variety of finned tube radiators, condensers, and many more in a short amount of time and has an excellent market position for its quality products and outstanding services.  




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