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Air Cooled Screw Chillers Manufacturer

Professional Air-cooled Screw Chiller Manufacturer

Why Choose Geson Air Cooled Screw Chiller?

There are three types of air cooled chillers types that you can choose from: the air-cooled screw chiller, air-cooled scroll chiller, and the air-source heat pump unit. For this purpose, the air cooled screw chillers has a capacity range of 20 TR to 570 TR. It operates with a range of 70KW to 2000 KW. 

Our air-cooled screw chillers is ideal for commercial and industrial facilities. It can generate chilled water temperature between -5 degrees Celsius to 20 degrees Celsius.

Air cooled chiller is powered using a semi-hermetic screw compressor and comes with the SIEMENS PLC controller.

Geson Chiller has more than 15 years of industry experience when it comes to the manufacture of chiller systems in China. Thus, we are the one-stop solution for your chiller requirements. Our chiller system offers easy installation, easy maintenance, and quality design.

If you have more questions about water chillers, free to contact us.

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Main Products

Air Cooled Screw Chiller System

Air-cooled Screw Chiller
  • 5RT-4000RT Capacity
  • -5~25℃ Outlet Temperature
  • PLC Controller
  • No Need Cooling Tower
  • Easy to Installation
Air Cooled Water Chillers
  • Ranges from 50TON~4500TONS.
  • Famous Leading Screw Compressor Brands;
  • Stable Operating Performance;
  • SIEMENS PLC Controller
  • Long Working Lifetime
Screw Compressor Chiller
  • 30RT-2000RT Capacity
  • 05~25℃ Outlet Temperature
  • Stable Operation and Long Lifetime
  • Branded Screw Type Compressor
Model Air-cooled Screw Chiller 90AS Air-cooled Screw Chiller  120AS Air-cooled Screw Chiller 155 AS Air-cooled Screw Chiller  165AS Air-cooled Screw Chiller 210AS Air-cooled Screw Chiller 225AS Air-cooled Screw Chiller 265AS Air-cooled Screw Chiller 280AS Air-cooled Screw Chiller 305AS Air-cooled Screw Chiller 330AS
Cooling Capacity KW 90 1 20 155 165 210 225 265 280 305 330
10′ kcal/ h 8 10 13 1 4 18 19 23 24 26 28
Control PLC Programmable Controller
Power Supply 380 V/ 3N / 50Hz
Compressor Type 5- 6 Asymmetric Semi-hermetic Twin Screw Compressor
Starting Y – △ Starting
Running Loading 0- 33- 66- 100% 0- 25%- 5 0%- 75%- 100 %
Cooling Power kW 26. 8 35. 4 44. 4 48. 7 60. 2 64. 5 72. 7 76.4 84. 1 91 . 8
Cooling Current A 46 . 9 62 77. 7 85. 2 105. 4 112. 9 127 . 2 133. 7 147. 2 160. 7
Evaporator Type Horizontal Shell and Tube Dry Evaporator
Pipe Diameter DN 65 65 80 80 100 100 100 100 100 125
Pressure Drop kPa 44 45 47 49 50 50 50 50 52 55
Condenser Type High Efficiency Copper Pipe and Aluminum Fins Condenser.
Power kW 0. 3 0.45 0. 45 0. 55 1. 1 1. 1 1. 1 1 . 3 1. 3 1 . 1
Refrigerant Type R407C
Diament Length mm 2450 2750 2950 3200 3200 3200 3200 3200 3550 4400
Width mm 1350 1400 1400 1500 2200 2200 2200 2200 2200 2200
Height mm 2020 2020 2200 2200 2300 2300 2300 2350 2350 2350
Weight kg 1850 2000 2400 2600 2800 2950 3100 3300 3550 3750

air-cooled chiller diagram pdf

All Types of Industrial Water Chiller Products

Modular Air Chiller

Modular Air Chiller

Air Source Heat Pump

Air Source Heat Pump

Water Source Heat Pump

Water Source Heat Pump

Water Tower

Water Cooling Tower

Chiller AC

Air Coditioning Chiller

No. Item Unit GSA-1390AD
1 Rated Cooling Capacity KW 1390
2 Rated Cooling Capacity kcal/h 1195400
3 Rated Cooling Capacity RT 395
4 Capacity control % 0-25-50-75-100
5 Evaporator Evaporator Shell and tube type
Evaporator import and outlet diameter DN 200
Chilled water flow rate m³/h 239.2
6  No of Refrigerant circuits Qty. 2
7 Axial Fan inpurt power KW 1.3KW*24PCS
8 Condenser Efficient copper pipe and aluminum foil compact type finned heat exchanger
9 Refrigerant R407C
10 Power specification 3P-380V-50HZ
11 Protection device Phase lack protection, phase reversion protection, overload current protection, exhaust temperature protection, low&high pressure protection, low temerature protection.
12 Size MM L13200X W2200 X H2500
13 Weight KG 10500
14 Operating Weight KG 11600

Air Cooled Chiller Diagram

Air Cooled Chiller Diagram

Your Top Quality Chillers Manufacturer In China

Top Brand Components  
Ensure Your Top Quality Chiller

Top Quality Screw Compressor With Certificate

Adopts Famous Brand Compressor;
Semi-hermetic 5:6 Screw Compressor;
Compressor Energy Efficiency is 20%~30% Higher;
Available with R134A/R407C/R410A/R510A and etc.
40000 Hours of Trouble-free Operation
Screw Compressor has Approved ISO9001, CRAA、CE、PED、UL Certification;

Screw Compressor

Reliable Microcomputer Control System
PLC Programmable Controller
LCD Touch Controller
Automatic Detection of Cold Water Outlet Temperature;
Automatic Detection of Operating Conditions;
Automatically Record the Alarm and Send Trouble Alarm;
Can Realize Remote Control;
Reserve RS-485 Communication Interface, or Ethernet Port;
Customize Display Language: Chinese, English, Russian, Spanish;
PLC Programmable Controller
High-efficiency Shell and Tube Heat Exchanger
Low Maintenance Cost, Easy Operation;
Long Cleaning Cycle and Convenient Cleaning;
Fast Heat Exchange Speed;
High-Temperature Resistance 400℃;
High-Pressure Resistance 2.5Mpa;
Can be Used Under High Temperature and High Pressure
Adopts Copper Tube with Rolled Fins on the Outer Surface,
Which Has High Thermal Conductivity and Large Heat Exchange Area;
Long Service Life Up to More Than 20 Years;
Shell and Tube Heat Exchagner
Brand Refrigeration Components:
Famous Brand Expansion Valve;
Brand Filter Drier
Has Electronic Expansion Valve
Or Thermoexpension Valve
Ensure the Stable Operation of the Industrial Water Chiller Unit.
Expansion Valve
Top Quality Electrical Components:
Famous Brand A.C Contactor, Relay, Thermal Protector,
Brand Pressure Controller, Filter Drier to Ensure the Reliability of the Industrial Water Chiller Unit
AC Contactor
High-Efficiency Copper and Aluminum Fins Condenser:
Heat Transfer Performance is Good, Stable, Air Resistance is Small.
Enhance the Efficiency of the Heat Exchanging
High efficiency copper pipe and aluminum fins heat exchanger.


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Air Cooled Screw Chillers System Manufacturer | Geson Chiller

Chillers are often found in industrial facilities where they are used to cool the water before it is circulated back to the cooling tower.

An air cooled chiller is different from a water cooled chiller because air does not need to be heated like water does.

Air cooled chillers are a type of refrigeration equipment for air conditioning and cooling.

Air cooled chillers are mainly used in industrial applications such as power stations, chemical plants and food production facilities.

Air cooled chillers ar can also be used in smaller scale environments such as commercial buildings or homes.

Air cooled chillers use fans and coolants to provide efficient cooling.

About air-cooled screw chillers.

Air-chilled chillers are a type of chiller that operates by using air and coolants to efficiently cool the refrigeration system in commercial buildings like grocery stores, warehouses, data centers, and hospitals. This makes them more energy-efficient than other types because they don’t rely on water.

Geson Chiller is one of the top Air Cooled Screw Chillers System Manufacturers in China.

So you can get more information to help guide your buying decision.

How Do Air Cooled Screw Chillers Work?

Air cooled chiller are one of two types of chillers that are used for commercial and industrial purposes. The other one is the water cooled chillers. This type of chiller works by processing air from an ambient temperature conditions source and then removing unwanted heat. It does not require the use of water to dissipate heat.

The heat is dumped onto a secondary condense loop before it is pushed into a cooling tower. This process results in the system losing water. Nonetheless, this step is omitted when dealing with an air cooled chiller. The fact that it does not involve the latent heat of evaporation, air cooled chiller lose their efficiency rating (as compared to water cooled chillers).

Air Cooled Screw Chiller

Air Cooled Screw Chiller

What the cooling Capacity of the Air Cooled Screw Compressor Chiller?

Under normal circumstances, in Geson Chiller, the Screw compressor chiller cooling capacity ranges from 300 to 1400kW. That is between 80 and 400 cold tons

Most popular model are:

50 ton air cooled screw chillers

115 ton air-cooled screw chiller

1 ton chiller
2 ton chiller
3 ton water chiller
10 ton chiller
20 ton chiller
50 ton chiller
60 ton chiller
100 ton chiller
200 ton chiller
500 ton chiller

Where Can You Find Them In Use?

Air cooled screw chillers are commonly used in newer buildings, particularly in small and medium-rise buildings. They are commonly seen in exhibition halls, office blocks, and similar types of buildings.

Industrial Applications of the Air Cooled Screw Chiller

Air coolers are widely used in industrial applications, and the air cooled screw chiller is a more efficient and easier to operate alternative to the traditional water cooling tower.

The air cooled chiller is much more expensive than a water cooling tower, but because it does not require any input of water, it has much lower operational costs. It also has less maintenance time compared to other cooling systems.

Do Air Cooled Screw Chillers Need Cooling Tower?

No. Air cooled chillers do not need cooling tower, unlike water cooled chillers. Instead, they provide cooling by dumping unwanted heat from the system and back into the atmospheric ambient air. This is one of the reasons why you need to plan strategically where the system will be installed in the building.

Water Cooling Tower

Water Cooling Tower

Where Are They Typically Installed?

Air cooled chillers are typically installed in an outside location. This is important in an air cooled system because any unwated heat that is processed will have to be emitted in an outdoor space. For most buildings that install this type of chiller system, they are placed on the roof of the building.

Other times, they are also installed in the ground floor or in car parks. This is very common in small to medium-sized buildings.

Chiller Room

Chiller Room

What Is The Air Cooled Screw Chillers Working Principle?

There are several parts that make up an air-cooled screw chiller.

These components are as follows: chiller pump, main pump, fan coil units, and risers.

Air Cooled Chillers Working Principle is as follows:

The main unit itself is what you will see installed on the roof of a building. There are chiller pumps attached to the main chiller unit. The chiller pumps are connected to small circulation pumps. These pumps are responsible for pushing water in and out and enters the evaporator. Once cooled, the water is pushed back into the main pumps.

Air Cooled Chiller Working Principle

Air Cooled Screw Chillers Working Principle

In the Air Cooled Screw Chillers Working Principle. These pumps typically run one at a time. The chilled water will be pushed and circulated throughout the building via the fan coil units. The recirculating process would produce approximately 6 degrees Celsius in temperature. The next step of the process will see the chilled water go through the riser and then go back into the main chiller unit wherein it will go through the process all over again.

The entire cycle is repeated continuously to provide a sufficient amount of cooling to a building or large space over a given period of time. This process will only stop until the entire system is switched off.

How Efficient Are Air Cooled Chillers?

In general, air-cooled screw chillers are less efficient than water cooled chillers. When buying this chiller system, you can determine its efficiency based on the EER value that is depicted in the percentage of the load based on certain conditions. The lack of cooling tower in air-cooled systems is partly responsible for it not being as efficient as water cooled chilers systems.

Air Cooled Chiller

Air Cooled Chillers

What Are The Main Components Of Air Cooled Screw Chillers?

There are several components that make up air-cooled screw chillers. These components are as follows: condenser, expansion valve, compressor, evaporator, power panel, and control units. Below are the functions of each of these components:

  • Condenser – This is where the heat is evaporated from the air before it is fed into the evaporator.
  • Expansion valve – This is responsible for lowering the pressure of the hot refrigerant and amplifying its volume.
  • Compressor – It helps to develop the pressure needed in order to circulate the refrigerant throughout the system.
  • Evaporator – This is where unwanted heat from the structure is processed before it is fed into the cooling tower (for water cooled chillers) or processed further (for air cooled chillers).
  • Power Panel – This is where the entire system can be switched on or off.
  • Control Units – This is where the entire function of the chiller system is controlled or shut off.

Air Cooled Chiller Parts

Air Cooled Chillers Parts

What Are The Condenser Cooling Fans For?

The condenser cooling fans are located at the top of the air chiller unit itself. These cooling fans will rotate once the system is powered on. The fans work in order to suck in the ambient air from outside of the building. Once the ambient air is sucked in, they will be pulled into the system through the grills on the fans.

From there, it will pass through the holes and wheels.

This process draws more air in and then introduced it into the pipes where it releases heat from the refrigerant.

Air Chiller Super Fan

Air Chiller Super Fan

What Type Of Compressor Is Used In Air Cooled Screw Chillers?

The air chiller uses a screw type compressor. This component is the driving force that will generate pressure and move the refrigerant through the system. The compressor pushes the refrigerant through the tubes that form the system. These tubes serve as passage for the refrigerant before it is feed off into the condenser.

Once the refrigerant passes through the compressor, it does so while in a vapor state with high pressure and high temperature.

screw compressor

Screw Compressor

What Is The Expansion Valve For?

The expansion valve is one of the key components that make up an air cooled screw chillers. Once the refrigerant reaches this point, it is already a high pressure and medium temperature saturated liquid. It will be responsible for feeding off the refrigerant onto the next part of the system – the evaporator.

Expansion Valve

Expansion Valve

What Is The Evaporator For?

The evaporator is the tank-like structure that is part of the chiller unit. Once the refrigerant is processed at the expansion valve, it goes to the evaporator. This part is where the return water that has already been chilled makes its way back. By this time, however, the water is already much cooler than when it entered the system.

Air Chiller System

Air Chiller System

This chilled refrigerant will then be introduced back into the fan coil units and make its way back into the building to provide a cooling effect. The water will run opposite the refrigerant and this is where the heat transfer happens. The water is now a low pressure and low temperature liquid vapor. The unwanted heat is exhausted back into the outside of the unit and the building.

The refrigerant will pass through the evaporator and into the compressor again to start a new cycle. The refrigerant will never exit the system. It is a closed system so what it does is simply move around the different components.

How Do Chillers And Cooling Towers Work Together?

The cooling tower play an important role in the chiller system. This is where the heat exchange takes place once air is processed on the system. The cooling tower are placed on a roof of a building. It facilitates the entry of ambient air into the coil wherein heat is removed and then exhausted to the outside.

These two work closely together in order to generate chilled air that can create a cooling effect in large spaces such as buildings. However, cooling tower are not needed when using ambient air for creating a chilling effect. Cooling tower is only necessary for water cooled chillers.

Air Chiller Fan

Air Chiller Fan

How Does An Air Cooled Condenser Work?

An air cooled condenser is an important component of air cooled water chillers. It is a direct dry cooling system that is made up of air-cooled finned tubes. This is where steam is condensed. The steam that is processed in the turbine uses low pressure, which enables the air cooled condenser to function like a vacuum. It also comes with an air excavation unit that removes non-condensable gas at a continuous basis.

The tubes are made up of a number of loops. The refrigerant will pass through those loops and by the time they leave this part of the chiller, it will turn to a medium temperature and saturated liquid.

Air Cooled Chiller Condenser

Air Cooled Chillers Condenser

How Does Air Cooled Screw Chillers Differ From Water Cooled Chiller?

Air cooled chillers are a type of refrigeration system that use a fan to force air over the coils in the chiller.

The water cooled chillers on the other hand, use a pump to circulate water over the coils.

The big difference between water cooled chillers and air chiller these two types of systems is that water cooled chiller can be more efficient but they also cost more and need more maintenance.

Both types of water cooled chiller and air chillers require basic maintenance to ensure that the system operates optimally.

Air chillers require less maintenance, though, as compared to the water cooled chillers. In terms of components, water cooled chiller need cooling towers or water pumps.

Some of water cooled chiller disadvantages include increased costs to maintain, increased maintenance costs due to breakdowns, and water cooled chiller not being effective when there is power outage.

In addition, air cooled chillers consume up to 10% more power to operate than the water cooled chillers.

Air Chiller Vs Water Chiller

Air Chiller Vs Water Chiller

What Are The Types Of Air Cooled Chillers?

There are two types of air cooled screw chillers that are available in the market: stationary and portable chillers.

The stationary air cooled chillers are those that are used whenever there is no issue of excess heat. Meanwhile, portable air cooled chillers serve the same purpose as the stationary ones but they are designed for portability so you can use them wherever you need them.

What Makes Air Cooled Chillers Effective?

Air cooled chillers absorb heat from the processed water. Once the heat from the water is processed, it releases that heated vapor to the outside of the unit. It is effective and efficient under certain conditions.

For example, the heated air that dissipates from the chiller unit can be used to warm a space during the winter months. It offers a more efficient way to heat any given space instead of utilize another form of heating system. In other cases, the chiller unit must be placed outside so that the heat won’t affect the desired cooling temperature of the building.

air cooled air chiller

Air-cooled Air Chiller

What is the Air Cooled Chillers COP?

COP (Coefficient Of Performance), the conversion ratio between energy and heat, referred to as the energy consumption efficiency ratio.

The COP of a chiller refers to the ratio of the cooling capacity of the compressor to the electric power consumed. The COP of air-cooled and water cooled chillers is different and is related to the form of refrigerant (screw type, centrifugal type)

For air-cooled or evaporative-cooled screw chillers, the coefficient of performance (COP) requirements are as follows:

When the rated cooling capacity is less than or equal to 50KW, the COP should not be less than 2.60;

when the rated cooling capacity is greater than 5OKW, the cOP should not be less than 2.80;

How Does Air Cooled Chillers Operate?

An air cooled chillers operates using the control unit and the power control. Once the system is switched on, the different components work together in order to start the cooling cycle. It requires the use of a refrigerant that is processed within the system in a continuous cycle for as long as the power is switched on.

Pls, check the air chillers catalog to get more data. Get the catalog from Geson Chiller.

What is Air Cooled Screw Chillers Hs Code?

Air Cooled Chillers Hs Code is

Other refrigeration equipment
Need commodity inspection

Air Cooled Chiller Diagram

Air Cooled Chillers Diagram

What Makes Air Cooled Chillers Popular?

Air-cooled screw chillers are very popular because they take up less space compared to a water cooled chillers. It is also easy to install whereas water cooled chillers require experts to install them since they have more components involved.

Need more Air Cooled Chillers Catalogue, contact our engineer now.

Comparison of the air-cooled module system and air-cooled screw system

1. Introduction to the system

Both the air-cooled module system and the air-cooled screw system are composed of an outdoor air-cooled air conditioner.

Air conditioning terminal equipment (fan coils and air handling units, etc.) and water piping systems,

Air duct system, circulating water pump, etc.,

Chilled water is pumped to various air-conditioning terminal equipment in different areas through circulating water,

Send out hot and cold air through the terminal device and the air duct,

In order to adjust the indoor temperature, each fan coil can be independently controlled.

2. Common advantages

The air-cooled module system and the air-cooled screw system have the following common advantages:

1. Save investment:

Since the cooling and heating conversion and operating principles are the same,

They all use water as the refrigerant to transport cold and heat to the room,

Construction and equipment and materials costs are relatively low;

Both cooling and heating can use the same system,

No need for separate heating facilities, saving initial investment.

2. Widely used:

Especially suitable for villas, hotels, hospitals, office buildings, entertainment venues, restaurants, supermarkets and other air-conditioned occasions.

3. Flexible layout:

Different types of indoor units can be selected to meet the indoor requirements of different decoration styles;

When the decoration pattern changes,

Air conditioning can be configured according to different decoration pattern changes.

3. Comparison of the two systems

The above are the similarities between the air-cooled module system and the air-cooled screw system.

The performance, technology, and economy of the above two air-conditioning systems are analyzed and compared below.

  1. The air-cooled screw unit adopts a screw compressor,

The single compressor has a large cooling capacity and high manufacturing precision,

There are few moving parts and the failure rate is extremely low.

The compressor has strong resistance to liquid shock and allows a certain amount of wet stroke.

A single compressor can be steplessly adjusted within the range of 25%-100%,

energy consumption efficiency is relatively high (usually around 3.1),

Operating costs are lower.

The initial investment of the air-cooled screw unit cost is relatively high.

  1. The air-cooled modular unit adopts a scroll compressor,

The cooling capacity of a single compressor is small,

When the cooling load demand is large, it can be realized by combining multiple modules.

Once liquid shock occurs, the compressor will be burned out.

The scroll compressor can only adjust the energy input by starting and stopping,

Multi-level adjustment can be realized when multiple modules are combined.

energy consumption efficiency is relatively low (usually around 2.9),

The operating cost is higher, but the initial investment is less.

In order to show the difference between the two more intuitively,

Take the total cooling capacity of 700KW as an example,

Compare from all aspects.

The following table is a comparison of the basic parameters, initial investment, operating costs, and operating reliability of the two programs:

Comparison Air-cooled Modular Chiller Air-cooled Screw Chiller Remark
Basic parameters System Components 5 sets of 130kw modular chiller

and 1 set of 65kw modular chiller combination

2 sets of 350kw air-cooled screw unit The operating cost of an air-cooled screw is lower
Power consumption About 244kw About 216kw
Initial investment The Equipment cost Lower Higher,the main engine with the same cooling capacity is 20-30% more expensive than the module machine. The initial investment of the air-cooled screw is higher.
Chiller room and basic requirements No need for a special computer room,

small weight, scattered layout, large floor space, about 150㎡

No need for a special computer room,

large weight,

small floor area, about 80-90㎡

Air-cooled screw chiller occupies a small area and requires load-bearing Higher
Installation cost The number of units is large,

the pipeline is complicated, a

nd the module hydraulic balance needs to be considered.

The installation project cost is high.

The number of units is small,

the installation is simple,

and the project cost is low.

Air-cooled screw chiller installation cost is lower
Use cost Management fee Microcomputer intelligent control,

no need to be on duty

Microcomputer intelligent control,

no need to be on duty

Air-cooled screw operating cost is lower
Low operating cost Low partial load IPLV,

low graded energy adjustment accuracy

High partial load energy efficiency,

high step energy adjustment accuracy

Electric auxiliary heating Limited by the performance of the compressor,

the heating conditions will have a large attenuation when the ambient temperature conditions is low. Generally, electric auxiliary heating is required.

Low-temperature environment heating has less heat attenuation

and does not require an electric auxiliary heating

Operational reliability Maintenance The air-cooled scroll unit is composed of multiple refrigeration systems with small cooling capacity,

and the number of refrigeration accessories

such as compressors are large,

the number of solder joints is large,

the failure rate is high,

and the maintenance cost is high.

Small quantity,

few solder joints, long life,

easy maintenance, low maintenance cost

The air-cooled screw has low maintenance cost and longer service life
Lifespan Lifespan is about 10 years About 25 years

Air-cooled module systems are generally used in small and medium-sized commercial places with a cooling capacity of 20kW~400kW and an area less than 5000m2.

The air cooled chillers unit has a large capacity and is generally used in a cooling capacity greater than 300kW.

Used in medium and large commercial and industrial sites with an area greater than 5000㎡.

Ways to Keep Your Air Screw Chiller Cooler than the ambient temperature conditions

The air screw chiller is a heat pump which is used to cool the air. It works by taking in heat from the surrounding ambient temperature conditions and transferring it to an external heat sink.

The ambient temperature conditions are usually around 27 degrees Celsius (80 degrees Fahrenheit) with humidity around 50%. The most effective ways of making sure that your equipment is cooler than these values are:

– Use an enclosed space to limit the amount of direct sunlight that goes into the area.

– Make sure you have enough ventilation in case of high humidity conditions.

– Lower down your condenser water temperature.

The Sustainable Refrigerant Options for Chiller Refrigerants

Hydrocarbon refrigerants are sustainable refrigerant options, are the alternatives to CFC refrigerants.

These Sustainable Refrigerant Options have significantly lower global warming potential as compared to chlorofluorocarbons (CFC) and hydrochlorofluorocarbons (HCFC).

One of the most common hydrocarbon refrigerant is methylene chloride which is used in some HVAC systems. Nitrogen chloride is another alternative to CFCs and HCFCs which has a very low global warming potential of 0.03 KG CO2-eq/kg of product as compared to 13 KG

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