TopChiller Centrifugal Chiller Manufacturer and Supplier China Over 20 Years

Centrifugal Chiller-An Ultimate Buying Guide by TopChiller

Centrifugal Chiller is the most advanced big-capacity refrigeration system that is widely used in both industrial and commercial applications.

With its components, Centrifugal Chiller helps many commercial businesses to enhance their production.

The Centrifugal Chiller is composed of refrigeration, Compressor, evaporator, condenser, main motor, lubrication system, and control unit, and air extraction.

Centrifugal Chiller provides cooling to the whole application as it works efficiently.

I hope this guide will help you in solving your queries.

Centrifugal Chiller Testing

What is a Centrifugal Chiller?

Centrifugal Chiller is one of the alternatives which help in providing cooling to your application.

Commercial buildings often use an HVAC (Heating ventilation and Air conditioning) system for their application.

The Centrifugal Chiller uses centrifugal movement to create a cooling environment for the application. Heat is removed from a liquid through vapor compression.

The large capacity of 1000-10000 KW for every Centrifugal Chiller additionally helps in reducing capital loss.

It is ideal for keeping the plant size minimum

It gives chilled water to all applications that need cooling at a high capacity. It is the most economical way to keep your application cool.

The Centrifugal Chiller is an essential HVAC component for commercial facilities. It is used widely by automotive, hospitals, medical industries, and fabric industries.

As soon as Summer arrives, the Centrifugal Chiller becomes operational. As the temperature of the application environment rises above 75°C, it starts working.

The Centrifugal Chiller stops working when the temperature scale drops below 76°C. The used water/glycol as refrigerant helps in the transfer of heat.

When the evaporator inlet temperature decreases to 10°C, the Centrifugal Chiller stops working

It cools the cold water storage of the application. That water provides cooling to application.

The increased concentration of dew point and content of hydrocarbon reduces the efficiency of application therefore the Centrifugal Chiller helps in reducing dew point and content of hydrocarbon.

Centrifugal Chiller Designed by TopChiller

Why do you Need a Centrifugal Chiller for your Application?

Every application has specific requirements and needs to make it successful. Due to its excellent features, the applicants prefer to use Centrifugal Chiller over other types of chillers.

The enormous applications often need a cooling system and the above refrigeration system is the best solution.

Many industrialists consider it for their application because it provides cooling capacity with a high-efficiency level.

It provides high-capacity cooling while maintaining efficient performance. It is widely known because they have approximately fewer moving parts.

They are easy to maintain and long-lasting.

Let us take the example of a cruise ship it needs an enormous cooling capacity for all components on board. In this application, the Centrifugal Chiller has to be in a tight mechanical room.

The Centrifugal Chiller is perfect when it comes to space needs. It provides better energy efficiency than any smaller system.

The initial investment of Centrifugal Chiller might be more and, expensive but their system is more efficient. It saves a few bucks on energy consumption.

Due to this, it provides a good return on investment in a short period.

Not every application has refrigerant pipe all over due to safety precautions. So people prefer one efficient way to provide cooling to the application.

The right choice of refrigeration system for every application helps the application to last longer.

One of the core reasons that you should choose a Centrifugal Chiller is flexibility. Its Configuration system is quite easy and accessible.

You can fit it either indoor or outdoor according to the need for cooling capacity and efficiency. As it comes up with customizable options and choices to choose options.

The Centrifugal Chiller helps in developing an environment for development and optimization. The humidity affects the application and its component badly.

If the heat has not been removed timely, it causes failure in production.

The Centrifugal Chiller recirculates the cool water and saves it from being wasted.

What are the Characteristics of a Centrifugal Chiller?

• Centrifugal Chiller provides cooling to your application.
• It keeps all the components of the application cool.
• Offers cost-efficient cooling.

Following are the essential elements.

Compressor: The compressor plays out an essential part in the activity of a Centrifugal Chiller. It makes it possible to remove heat from indoor spaces or the Process of application.

Condenser: The condenser rejects the heat gained using cooling tower water to condense the gas back to a liquid for use again by the evaporator.

The condenser is an exchanger of heat. The heat exchanger vanishes the heat absorbed in the evaporator.

System Expansion: The liquid refrigerant enters the expansion device, which reduces pressure. Reducing its pressure decreases its temperature.

An expansion device is an electronic regulator.

Evaporator: Evaporator is a very core part of it. The evaporator cools the water, or glycol, or air by transferring heat to the refrigerant, which later turns into a gas.

The compressor takes the gas and increases its pressure so that water can remove the heat.

Holding tank: The holding tank has a circulating coolant. Usually, it is water or glycol.

The holding tank is enormous and can prevent turbulent flow in the tank. Turbulent flow causes pump cavitation.

Pump: The pump helps in circulating coolant from the holding tank to the evaporator.

The coolant circulates from the evaporator to the machine for being cooled and back to the empty tank.

Control panel: There is a panel in the Centrifugal Chiller.

This panel consisted of an environment temperature controller, contactor of the compressor, safety controls, three-phase fuses, pump starter, control transformer, safety signs, run and fail lights indications.

The Control panel also helps in managing the electrical flow to the refrigerator of the refrigeration.

Control unit: Control unit is present on the refrigerator of a  Centrifugal Chiller. The main task of the control unit is to observe various features’ performance of the Centrifugal Chiller.

These control units also work as an alarm in case of an emergency. The alarm notifies experts and teams about the fault in it.

Centrifugal Chiller Multiple Compressors

What are the Types of Centrifugal Chiller?

There are two types of Centrifugal Chiller.

( 1 )  Air-Cooled Centrifugal Chiller: The air-cooled Centrifugal Chiller is refrigerated and cools the water or glycol with help of an air handler system.

An air-cooled absorbs the heat from the process and reduces the temperature of the water. It takes heat and transfers it into the open air.

( 2 ) Water-Cooled Centrifugal Chiller:  Water-cooled Centrifugal Chiller is manufactured for indoor installation.

These are cooled by a separate condenser loop of the water, which is connected with outdoor cooling towers to remove the heat from the atmosphere.

Water Cooled Centrifugal Chiller

What is the Working Principle of the Centrifugal Chiller?

Step 1: Evaporation Process

In the Centrifugal Chiller, the pumping system helps in circulating cool water. Cool water solution travels to the process.

The cool glycol removes heat from the process and, warm glycol travel back to the chiller.

The process water or glycol means by which heat transfers from the process to the chiller.

Centrifugal Chiller contains a chemical compound which is called a refrigerant. There are many different types of refrigerants and, it depends on the temperature that is needed.

All the refrigerants work on the principle of compression and phase-change of refrigerant.

During the phase-change of refrigerant, the liquid changes to gas and then back to a liquid.

Step 2: Heat absorption/ refrigeration.

The process of heating and cooling liquid and changing it from a gas to liquid. It is known as the refrigeration cycle.

The cycle of refrigeration starts with low pressure when liquid enters into the evaporator.

In the evaporator, heat from the water/glycol boils the refrigerant, which changes it from low-pressure liquid to low-pressure gas.

Then the low-pressure gas enters the compressor. Then low-pressure gas is compressed to the high-pressure gas.

That high-pressure gas enters the condenser water it removes heat to cool it to a high-pressure liquid.

Step 3 Condensation Process:

The liquid with high pressure enters the expansion valve, which controls the amount of liquid refrigerant to enter the evaporator. Then the refrigeration cycle repeats.

Air-cooled and water-cooled are the two different types of condensers used in the Centrifugal Chiller.

An air-cooled condenser always uses air to condense and cool the hot refrigerant back to the liquid.

An air-cooled condenser can be located inside or outside. An air-cooled condenser ultimately removes heat from the Centrifugal Chiller to the air.

Another type of condenser is a water-cooled condenser. In this condenser, the water from the cooling tower cools and condenses the refrigerant.

The Centrifugal Chiller provides consistent temperature and pressure to your application.

Every refrigeration system needs a continuous power supply for stable production. If the Centrifugal Chiller finds any fault in the power supply, it has an automatic system that tends to shut by itself.

The Centrifugal Chiller work under the basic principles mentioned above. It is easy to operate and shut.

Centrifugal Chiller Working Principle

How to keep Regular Maintenance of your Centrifugal Chiller?

The investment in the Centrifugal Chiller is enormous. So, therefore, it is better to keep it maintained long life.

Step 1

Check your system daily

Document the details and essential points of the Centrifugal Chiller, such as wiring and control panel.

Centrifugal Chiller manufacturers provide a list of essential data points. You can take readings of the system daily via microprocessor controls.

Step 2

Cleaning the tubes

The result and efficiency of a Centrifugal Chiller always depend on its performance.

The performance is related to its efficiency in transferring the heat.

It has several tubes which work as the gateway of the heat exchanger or ventilation.

You can get your desired results and performance from Centrifugal Chiller by cleaning evaporator tubes and condenser tubes.

So, if you want maximum performance, you have to maintain the cleaning of those pipes.

The performance of Centrifugal Chiller gradually decreases when tubes have mud, contaminates, algae, and sludge. This amasses on the waterside of heat transfer surfaces.

The amass and fouling of the tubes depend on the water quality, temperature, and cleanliness.

You can clean the condenser tubes of the Centrifugal Chiller annually because they are part of an open system.

Clean evaporator tubes after every three years if your system is closed.

If the evaporator is part of an open system, then periodic inspection is necessary. The tubes are in several miles.

There are two primary methods to consider while cleaning tubes of the Centrifugal Chiller.

Step: 3

Mechanical cleaning

Mechanical cleaning in a Centrifugal Chiller removes the mud, algae, contaminants, and loose material from the pipe.

This method consists of removing the water-box cover, brushing the tube, and flushing the clean water through the pipes.

There are also internal tubes in the Centrifugal Chiller. The pipes which are present inside need an expert to clean.

You can consult Centrifugal Chiller manufacturers for a better recommendation.

Most of the technicians also use chemical cleaning to clean the tubes. The chemical cleaning is also known as water treatment for a pipe of the Centrifugal Chiller.

The updated models of Centrifugal Chiller have an automatic tube-brushing system. It uses small nylon-bristled brushes that flow through tubes.

The four-way custom manufactured valve is present in condenser water tubes. After every 6 hours, it automatically reverses the flow through the condenser for 30 seconds.

The latest Centrifugal Chiller eliminates algae, fouling, and mud virtually from the tubes.

Step 4

 Make sure of the leak-free unit.

The manufacturers of Centrifugal Chiller suggest the quarterly test of the compressors for leaks.

However, Centrifugal Chillers are in more use in today’s world. The perfect and closed system is hard to find.

A leak in the system allows air and vapor to enter. Whereas air and humidity affect its efficiency.

If once the air and humidity are trapped in the condenser. It increases condensing pressure and power of the compressor and this reduces the efficiency level and cooling of the Centrifugal Chiller.

1psi of air in the condenser equates to a 3 percent loss in efficiency of the Centrifugal Chiller.

The moisture in it creates acid that corrodes the wiring of the motor and rust.

One of the best ways to catch leaks is to track the runtime of the purge point. If the figure of purge point is too high, it means there are leaks.

Leaks result in a lower refrigerant. Leaks also cause other operational problems.

Step 5

Analyze oil and refrigerant

The annual check and balance of oil help in detecting the problems.

The spectrometric testing of chemicals determines moisture, acid, and metal which resist the performance and efficiency.

The experts from the manufacturers of the Centrifugal Chiller should perform analyses with the latest gadgets and equipment.

The expert should take an oil sample of the Centrifugal Chiller when it’s operating and working. Oil must be changed when oil analyses indicate.

Also, check the oil filters and change the filters while changing the oil of the Centrifugal Chiller. If the pressure drop increases then, change the filter immediately.

Oil analyses help you find the bugs in the system.

Step 6

Proper treatment of water

The Centrifugal Chiller uses water for the transfer of heat. So it is necessary to treat the water.

Clean water prevents the growth of algae and corrosion. If the system of your Centrifugal Chiller is closed, a one-time chemical treatment is required.

The chemical treatment must clean the evaporator and condenser. Clean all filters every three months.

It is healthy for the Centrifugal Chiller to carry the water quality test every three months and take an essential step if water quality is low.

Centrifugal Chiller Regular Checking

 What are Favorable Conditions for the Centrifugal Chiller to Work?

The Centrifugal Chiller needs a favorable condition to work properly.

The flow rate of chilled water must be between 3 to 12-ft per second. Changing the flow of chilled water in a Centrifugal Chiller affects the efficiency of the system.

The low flow rate of chilled water decreases the efficiency.  It also causes laminar flow.

The minimum favorable flow rate is 3-ft per second (FPS).

When the flow rate increases too high, it causes vibration, noise, and tube erosion in the Centrifugal Chiller.

The maximum flow rate is around 12 feet per second. It is better to keep the flow rate in the above-given conditions for smooth performance.

Poor operating practice: The mediocre practice of operating Centrifugal Chiller results in loss of efficiency.

Most consumers try to get something from a Centrifugal Chiller for which it is not even ready.

A common practice people do is increase the rate of flow of chilled water.

People practice this to get more cooling, but it affects the operating efficiency of the Centrifugal Chiller. It leads to early tube failure.

Most new and high efficient Centrifugal Chiller carry a full load of 0.50 KW per ton.

If you take care of it, it can give a high-efficiency load up to 0.55- 0.60 KW per ton.

How to Find the Best Centrifugal Chiller for your Application?

You can find a Centrifugal Chiller according to your range and needs. You need to find the right one for your application.

The most important factors that you consider before buying a Centrifugal Chiller for your application are efficiency and compressor.

Fuel availability is one of the factors.

Air-cooled and water-cooled Centrifugal Chiller: Both air-cooled and water-cooled Centrifugal Chiller range from 5 to 5000 tons in size. Air-cooled comes with easy installation.

The air-cooled Centrifugal Chiller may cost a high electricity rate. And it is more efficient than the water-cooled.

The maintenance and installation cost of an air-cooled Centrifugal Chiller is low. it considerable for a sound-sensitive environment.

Water-cooled is the most historically famous and dominates the market.

The air-cooled Centrifugal Chiller is increasing day by day as these are more efficient and easy to use.

Air-cooled has high sound. An air-cooled is perfect for lesser commercial use.

The air-cooled chiller needs less electricity. Water-cooled needs experts to overview and high-cost electricity.

A water-cooled has a capacity of cooling up to 250-3000 tons. Air-cooled is comparatively larger than water-cooled. Air-cooled is mostly located on the rooftop due to space availability.

A water-cooled Centrifugal Chiller needs to install the mechanical room inside the application. It uses space of application to be efficient.

You need to compare your application and various Centrifugal Chiller to choose from.

The above data is really important. You should consider and math before buying it.

Compare your budget and load for your application then, go for it.

Air Cooled Centrifugal Chiller

What is the Difference Between Centrifugal Chiller and Screw Chiller?

Centrifugal Chiller

Centrifugal Chiller is known as a Variable volume displacement unit.

Centrifugal Chiller is known as factor volume relocation units. Like reciprocating machines, these are additionally accessible in both hermetic and open development.

Industrially the hermetically sealed units are all the more generally in use, despite their lower working proficiency.

Centrifugal Chiller for refrigeration applications is large for a fixed pressure proportion of 18.

You can accomplish the limit control using inlet vanes on the impellers that confine refrigerant flow. The manufacturing limit ranges from 90 to 2000.

The fundamental factor in preferring Centrifugal Chiller is their high operational proficiency at full load, minimal size, and accessibility in huge sizes.

The greatest downside is an exceptionally helpless part load execution and powerlessness to work at low cooling loads.

At extraordinary low loads, the Centrifugal Chiller is prone to a condition known as surging.

The fundamental limitation is that these are not appropriate for air-cooled condenser alternatives and require a water and cooling tower.

Screw Chillers

Rotary or screw chillers such as reciprocating machines are positive displacement compressors.

Screw chiller is a more extensive term that may include vane, unconventional, stuff, or screw types.

The commercial refrigeration establishment depends more on a screw chiller.

Screw compressors are accessible in a few plans, both single screw, and twin screw, with oil-free and oil-infused plans in the two types.

Twin-screw oil-infused compressors are marginally more energy productive at moderate pressure proportions.

Twin-screw chiller compressors can work at a pressure proportion of 30. Units are accessible in both hermetic fixed and open development.

The limit control in the screw chiller compressor is accomplished carefully by a moveable slide stop valve which will fluctuate the compressor inward volume proportion to accomplish ideal energy utilization during part-load activity.

Screw chillers are accessible in limits going from 20 to 1000 tons and significantly higher than a few producers.

The elements preferring screw chillers are their smaller size, lightweight, very and vibration-free activity, and high energy effectiveness both in full and part load activity.

The significant downside is their significant expense. For more modest burdens, reciprocating machines are more affordable to buy and for huge loads, Centrifugal Chiller costs less.

Screw Chiller

How to size a Centrifugal Chiller?

The size varies from application to application.

The sizing of the chiller is the task of experts and seniors. There is a digital calculator available on the internet which tells you the size of your Centrifugal Chiller.

Following are the points to consider before deciding the size of the Centrifugal Chiller.

• The temperature of the water comes from outsourcing and passing through tubes.
• The cool water temperature you need for your application.
• The rate of flow.

The size also depends on your application as well.

If your application is about the following:

• Metal finishing.
• Medical Centrifugal Chiller.
• Plastic processing.
• Food processing.
• Electricity processing.

Compare your cost and the initial cost of Centrifugal Chiller. If it lies in your budget, then opt for it.

Centrifugal Chiller is enormous due to its efficiency. Some need space in the open air and, some need a mechanical room to work.

Size your Centrifugal Chiller according to the power supply you have.

If you have enough power supply then, make sure you can afford the electricity cost.

What Are the Right Steps of Centrifugal Chiller Installation?

Step 1: Safety first

The Centrifugal Chiller should be getting to the ground.

It is fundamental to notice the accompanying directions.

– The Centrifugal Chiller must be lifted utilizing the lifting focuses. These are the solitary focuses that can Uphold the whole weight of the unit.

– Do not permit unapproved as well as an unfit workforce to get to the Centrifugal Chiller

It is prohibited to get to the electrical parts without opening the Centrifugal Chiller’s prim switch and turning off the Power supply.

It is prohibited to get to the electrical parts without utilizing a protecting stage. Try not to get to the electrical parts if water or potentially dampness are available.

– All procedures on the refrigerant circuit and parts under tension should be done by the qualified workforce as it were.

– Replacement of a blower should be completed by qualified faculty as it were.

– Sharp edges could cause injury. Stay away from direct contact.

– Switch off the unit’s force supply, by opening the principle switch, before adjusting the blowers.

Step: 2 Positioning and assembly of Centrifugal Chiller

All units are for installing inside. The Centrifugal Chiller should be put on a robust and entirely level foundation floor.

The Centrifugal Chiller may be installed on overhangs or rooftops, it very well may be important to utilize weight dissemination radiates.

For establishment on the ground, set up a solid concrete base that is at any rate 250 mm more extensive and more than the Centrifugal Chiller.

Likewise, this base should be sufficiently able to help the heaviness of the Centrifugal Chiller as expressed in the specialized determinations.

If the Centrifugal Chiller is introduced in spots that are effectively available to individuals and animals, it is important to create protection around the Centrifugal Chiller

Essential steps for the compressor segment.

To guarantee the most ideal exhibition on the ground site, the accompanying safety measures and guidelines should be followed:

• Make sure to give a solid establishment to decrease commotion and vibration however much as could reasonably be expected.
• The water in the framework should be especially spotless and all hints of oil or rust should be eliminated. Mechanical water. The channel should be introduced on the machine’s gulf funneling.

Wear PPE Before Centrifugal Chiller Installation

How to Detect and Resolve Problems with your Centrifugal Chiller?

If you keep maintaining your Centrifugal Chiller it may not cause any problem. Providing oil and cleaning the filters at a given time prevent problems.

If your Centrifugal Chiller is causing more vibration and sound, you should call the expert to resolve it.

Read the manual guide that comes with a Centrifugal Chiller to avoid any resistance in production.

Keep cleaning the tube Chiller at right time for full efficiency. Centrifugal Chiller has many components, you may not be able to detect problems sometimes.

When a Centrifugal Chiller does not receive enough power supply it does not work efficiently. It is easy to maintain.

FAQ of Centrifugal Chiller

What are the Benefits of Water in Refrigeration of a Centrifugal Chiller?

Water as a refrigerant is protected to work, non-hazardous, environment unbiased, non-harmful, uninhibitedly accessible, savvy, and sans oil.

What Possibilities are Available in General for Utilizing Water in Centrifugal Chiller for Cooling?

– Centrifugal Chiller with water as a refrigerant

– Evaporative cooling (direct/roundabout)

– Dew point cooling

– Absorbers

– Adiabatic cooling

– Open/shut cooling towers

For Which Applications are Water the Ideal/Suggested Cooling Medium for Centrifugal Chiller?

Water is especially appropriate as a refrigerant for Centrifugal Chiller for applications, for example, mechanical cycle cooling, comfort cooling, IT cooling, machine cooling, specialized cooling, sterile applications, and groceries.

How Much Water is Utilized in Centrifugal Chiller for the Cooling Interaction?

No water is utilized by any stretch of the imagination, as the cycle runs in a shut framework. The framework is filled once with decalcified faucet water (eChiller35/45: approx. 60 liters, eChiller120: approx. 80 liters)

Are Higher-Limit Models of Centrifugal Chiller Being Arranged?

Bigger frameworks of the Centrifugal Chiller item are being arranged. Higher limits can likewise be accomplished by interfacing a few Centrifugal Chillers in equal. Main-Assist of manufacturers control is utilized for this.

Is Centrifugal Chiller cost-efficient?

It depends on your application and usage. However in general it is cost-efficient.

100% Quality Tested Centrifugal Chiller