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Water Cooled Glycol Scroll Chiller

15 Ton Low Temperature Water Cooled Glycol Chiller
  • 15 Ton Low Temperature Water Cooled Glycol Chiller
  • 15 Ton Low Temperature Water Cooled Glycol Chiller
  • 15 Ton Low Temperature Water Cooled Glycol Chiller
  • 15 Ton Low Temperature Water Cooled Glycol Chiller
  • 15 Ton Low Temperature Water Cooled Glycol Chiller

15 Ton Low Temperature Water Cooled Glycol Chiller

This 15 Ton low temperature water cooled glycol chiller can cool your application reach -30℃, which is widely used in winery , brewery ,distillery ,fermentation cooling process.

Chiller Model:          TW-20WL

Cooling Capacity:    32.2KW(27692 kcal/h) @ -10℃
                                20.4KW(17544kcal/h) @ -20℃
                                11.2KW(9632kcal/h) @ -30℃

Refrigerant:             Environmental Friendly R404a

Power Supply:         380V/50HZ /3PH (Standard)
                                208-480V/60HZ/3PH(Customized)

Compressor Brand: Panasonic Scroll Compressor

Evaporator Type:     SS Plate Type (Standard)
                                 Shell and Tube Customized)
    At general refrigeration systems, our aim is to provide affordable cooling solutions to a wide range of industries by offering standard packaged units as well as units custom-made to your specifications.
    We have designed our air-cooled glycol chillers to accommodate a range of low temperature applications,such as breweries,distilleries,wineries, pharmaceutical,and food& beverage industry.
    We know that not every application requires such low temperature, so we provide cooling capacity by leaving fluid temperature charts for our most popular models.
    Glycol is recommended for all chiller units when operating temperatures are below 41°F (5°C).
    2.What is Glycol Chiller ?
    A glycol chiller ,also called a low temperature chiller or glycol refrigeration system, is an industrial process chiller that uses a water and glycol mixture as a coolant which allows it to efficiently transfer heat and maintain temperature control in different kinds of industrial applications, particularly in applications that involve cooling liquids or equipment.


    Water Cooled Glycol Chiller

    3.What Are The Main Components of Water Cooled Glycol Scroll Chiller?

    3.1 Compressor
    The compressor is the key mover in packaged Water Cooled Chiller because it produces pressure variations to stir the refrigerant around.
    For 15 Ton chiller , which is with two units Panasonic brand compressor, using R404a refrigerant,this brand compress is with high refrigeration efficiency,low noise ,energy saving,environmental protection and durability,safety and stability. 

    Panasonic Compressor


    Danfoss Compressor

    3.2 Evaporator
    The evaporator is a crucial component of packaged water cooled glycol chiller, as it is responsible for extracting heat from the liquid being cooled,it is located between the compressor and the expansion valve. There are three types of evaporators :  shell and tube evaporator, 304SS stainless steel plate type evaporator. 

    Coil in SS Water Tank Evaporator


     SS Plate Type+ Water Tank Evaporator


    Shell and Tube Evaporator

    3.3 Water Pump
    The water pump is designed to increase the pressure and the flow of the chilled water in a closed space. 
    the water pressure water pump for chiller is about 2 bar , but if you need more higher water pressure , pls tell us when you inquiry .


    Water Pump


    High Pressure Water Pump

    3.4 Condenser

    The condenser for packaged water cooled glycol chiller is shell and tube ,with the internal copper tubes employing an outer thread embossing process.This design effectively enhances the heat exchange efficiency between the refrigerant and water during the process. Compared to traditional smooth copper tubes, the outer thread embossing process increases the surface area of the copper tubes, thereby expanding the contact area for heat exchange and improving the thermal conductivity of the condenser. This optimization design allows the condenser of the water-cooled chiller to transfer heat from the refrigerant to the water more rapidly and consistently, enabling the water to carry away the heat.

     
    Shell and tube Condenser

    3.5 Controller Panel
    Tongwei chillers use precision digital temperature controller, it RS485 communication port,which can do remote monitoring and control. Simple operation, low failure rate, high safety factor, easy installation.


    Controller Panel

    4.What is the Difference Between Water Cooled Glycol Scroll Chiller and Water Cooled Glycol Screw Chiller?

    Water Cooled Glycol Scroll Chiller                                Water Cooled Glycol Screw Chiller 

    ▪ 3hp-60HP                                                                            Above 60HP

    ▪ Danfoss/Panasonic Scroll Compressor                           Hanbell/Bitzer Screw compressor

    ▪Built with water tank and water pump                               Without water tank and water pump
        
     

                     Water Cooled Glycol Scroll Chiller                                                                        Water Cooled Glycol Screw Chiller                                                            

    5.Why Glycol Is Used for Cooling?
    The most commonly used coolant in a chiller is water or a mixture of water-glycol. Glycol-based coolants consist of either ethylene glycol or propylene glycol. The main advantage of glycol coolants is their anti-freeze properties. Pure water freezes at 0 degrees C, while 30% ethylene glycol freezes at -14 degrees C. The low freezing point of glycol mixtures makes them ideal for cooling items that are below the freezing point of water. Although glycol has a lower heat capacity than water (each kilogram of glycol is easier to heat than one kilogram of water), the high temperature difference allows the glycol mixture to dissipate heat more quickly than pure water. The glycol mixtures are more suitable for applications where the chiller must quickly dissipate a large number of heat. In addition to providing excellent heat transfer parameters, glycol tends to discourage algae growth in heat transfer equipment.

    Comparison of Ethylene Glycol and Propylene Glycol

    Property                                                  Ethylene Glycol                                       Propylene Glycol

    Freeze point depression                          More effective                                        Less effective

    Heat transfer efficiency/capacity          Better                                                       Less

    Viscosity                                                  Lower                                                       Higher

    Flammability                                       Low                                                               Low

    Chemical Oxygen Demand                Low                                                         Higher

    Biodegrading                                          Degradesin 10-30 days                                        Needs more than 20-30 days to degrade

    Carcinogenic                                             No                                                                 No

    Toxic                                              High level of acute when taken orally,                Lower level of acute
                                                                 
    targets the kidneys

    Skin Irritant                                                Low                                                            Low

    Ethylene Gycol And Propylene Glycol

    6.How Does A Glycol Chiller Work?
    A glycol chiller is composed of a refrigeration component and tubing containing a water-glycol mixture as coolant. Chilled fluid from the refrigeration unit is channeled through the piping associated with a thermal exchanger surrounding a heated process. After absorbing heat from the associated process, the hot coolant is returned to the refrigeration unit for cooling after which the process is repeated.
    A glycol chiller consists of a compressor, an evaporator, a condenser, a throttling element, and an electric control system. Let’s see what’s the working principle of a glycol chiller:



     Water Cooler Glycol Chiller Working Principle


    7.The Ratio of Water to Glycol to Use

    It is important to use the proper ratio of glycol to water mixture in the cooling system depends on the coldest temperature you need during operation, as insufficient glycol can cause the system to freeze, possibly bursting pipes and even destroying the chiller evaporator even may damage the glycol chiller, while too much glycol to a chiller system will result in an inefficient system.
    But what’s the best ratio for glycol and water mixtures? Pls see below glycol ratio of glycol and water mixtures for the glycol chillerin your cooling process:

    Glycol                                               Water                          Water Temperature

    16%                                                 84%                                           0℃

    24%                                                 76%                                           -5℃

    32%                                                 68%                                           -10℃

    40%                                                 60%                                           -15℃

    45%                                                 55%                                           -20℃

    50%                                                 50%                                           -25℃

    55%                                                 45%                                           -30℃


    8.What Applications Can A Glycol Chiller Be Used For?
    Glycol chiller is a specific kind of cooling system,which is  used to cool a variety of liquids and other industrial applications.
    By using a glycol chiller can achieve the low temperature for your industrial usage you need .
    Glycol chillers are most used for below these Industries:
    8.1 Breweries 
    In breweries, the glycol chiller is used for cooling the wort,Controlling Fermentation,Crash Cooling Vessels,Prepackaging and Product Storage.
    Glycol Chiller for Breweries

    8.2 Wineries
    Glycol chillers are widely used in the fermentation process, cold stabilization and room cooling purposes.
    Glycol Chiller for Wineries

    8.3 Cider Mills
    Fermentation control needs critical water temperature control.  Glycol chiller can provide cold chilling of the juice and milk, also the cold storage of the final product.


    Glycol Chiller for Cider Mills

    8.4  Distilleries
    During the fermentation process, the glycol chiller will provide a steady coolant for circulation between distillation tanks & stills for heat removal purposes.

    Glycol Chiller for Distilleries

    8.5 Food Industry.
    Glycol chillers can provide low-temperature coolant to guarantee the safety and consistent quality of frozen foods, food processing companies need a low-temperature cooling day in and day out.
    Glycol Chiller for Food Industry
    8.6 Dairy Product
    A properly designed dairy glycol chiller can cool the milk very rapidly to help keep milk temperatures (and bacteria growth) under control as it is transferred from the milking parlor to its insulated tank.
    Glycol Chiller for Dairy Product


    Do you need a glycol chiller for an application not mentioned here? Contact us and we’ll customize an affordable solution for your exact demands.

    9.How to Choose Right Glycol Chiller for your Application?
    It is very important to select the right glycol Chiller for application process, if you want proper and durable cooling,please see blow key points:
    9.1  Air-Cooled Glycol Chiller or Water-Cooled Glycol Chiller
    There are two types of glycol chiller: one is air-cooled type, the other one is water-cooled type.
    Air Cooled glycol scrol chillers use aluminum fin+fan as condensers that is similar to the “radiators” in a car.They use a fan to force air through the refrigerant coil. Unless they are specifically designed for high ambient conditions, air-cooled condensers need to operate effectively at an ambient temperature of 45℃ or less.
    Water Cooled glycol scroll chiller use shell and tube as condensers.The heat enters the condenser water from the refrigerant vapor. The warm condenser water is then pumped to the water cooling tower, where the heat from the process is eventually vented to the atmosphere.


    Air-cooled Scroll Glycol Chiller Installation for Reference


    Water-cooled Scroll Glycol Chiller Installation for Reference

    9.2 Cooling capacity
    When you choose a suitable chiller model , you need to know the cooling capacity in KW/TON.How to calculate the cooling capacity you need? Please see the below formula:
    Cooling Capacity(kw)= Flow Rate(m3/h)*Temp Change(T1-T2)/0.86
    Heat Load= C(specific heat)* M(quality output per hour )*Temp Change(T1-T2)
    Oversize the chiller by 20% Ideal Size in KW = KW x 1.2
    Noted : T1:Incoming Water Temperature (℃)      T2:Required Chilled Water Temperature(℃)    
        
    For example, what size of chiller is required to cool 5m³ water from 25°c to 15 °c in 1 hour?
    Temperature Differential = 25℃-15℃=10℃
    Water Flow Rate = 5 m³/hour
    Cooling Capacity in KW = 5 x 10 ÷ 0.86 = 58,14 KW
    Oversize the chiller = 58.14 x 1.2 = 69.76 KW
    69.96kw cooling capacity for chiller is required.

    9.3 Power
    Different countries and regions have different standards for industrial electricity, the common power supplies are 208-230V, 380-420V,440-480V,50Hz or 60Hz, 3phase.
    Such in Philippines ,the power supply is 220V 60HZ 3PH , 380V 60HZ 3PH ,460V 60HZ 3PH;
    in Singapore and Malaysia ,the power supply is 415V 50HZ 3PH;
    in Mexico ,the power supply is 220V 60HZ 3PH;
    In USA ,the power supply is 208V 60HZ 3PH;575V 60HZ 3PH;480V 60HZ 3PH and so on

    9.4 Water Pump
    When you decide the capacity/tonnage of the chiller, we will recommend you the suitable pump in KW,which standard water pump is about 2 bar .If you need more high water pressure , please us when you inquiry.

    9.5 Evaporator Choose
    Chillers generally have two types of evaporators: one is coil in water tank evaporator ,the other one is shell and tube evaporator.
    Coil and tank evaporator, which has a built-in water storage tank for more convenient use,so there’s no need for extra buffer tanks. This is also our standard evaporator for chiller , if you don’t have buffer tank ,we just use this evaporator for your chiller.
    Shell and tube type evaporator, which requires an additional water buffer tank to connect .The buffer tank’s capacity can be customized according to specific needs. It can buffer a larger heat load, and store more chilled water, but the installation will be more troublesome.
    Water Tank Inside Chiller 

    10.Contact Us to Learn More About Our Low Temperature Glycol Chiller

    Don’t delay in making the best decision for your manufacturing business and your future by increasing your production capabilities with a low temperature glycol chiller. Contact us today for more information on a chiller.
    Our probessional team will help you with any questions you have on our chiller units. We look forward to hearing from you!




                  15Ton Water Cooled Glycol Chiller 
     
            Technical Specifications MODEL:TW-20WL

    Model
    TW-20WL
    nominal cooling capacity
    KW
    -10℃
    32.2
    -20℃
    20.4
    -30℃
    11.2
    Chilled Water temperature range
    -30~5
    Max power consumption
    kw
    4.56
    Full load
    Amp
    42
    power source
     
    3PH-380V-50HZ (Standard)
    3PH-220-480V-60HZ(Customized)
    refrigerant
    type
     
    R22/R407C/R410A/R134A
    control
     
    External balance of thermal expansion valve
    compressor
    type
     
    hermetic scroll type
    power
    kw
    7.5*2
    QTY.
    Unit
    2
    condenser
    type
     
    Shell and tube condenser
    cooling waterm3/h
    -10℃
    7.23
    -20℃
    4.56
    -30℃
    2.63
    Diameter
    inch
    2"
    evaporator
    type
     
    Coil in Water tank evaporator(Standard)
    shell and tube Type Evaporator(Customized)
    Chilled water m3/h
    -10℃
    5.56
    -20℃
    3.51
    -30℃
    1.93
    inlet and outlet connection(BSP)
    inch
                        2’’
    Water pump
    power
    kw
                      2.2
    Water Flow
    M3/h
                     25.2
    Max.Pressure
    Bar
                       2
    safety devices
    Compressor overheating protection,over-current protection,high and low pressure protection,over-temperature protection,traffic protection,phase sequence/phase loss protection,low level protection,frost protection
    dimension
    mm
    1660*855*1760
    weight
    kg
    470

    The above parameters will be updated continuously. If you have any special request, please send

    your technical requirements before placing an order 
    1.How does a chiller system work?
    Chiller has two circulation,one is process water circulation,the other is refrigerant gas circulation.Heat picked up from the process.Heat transfers to refrigerant circulation.Heat is remove to air or water.

    2.How to calculate right cooling capacity for chillers?
    One of the most frequently ask about how we can know the cooling capacity for chillers. Let’s see the below formula.
    Cooling Capacity(kw)= Flow Rate(m3/h)*Temp Change(T1-T2)/0.86
    Heat Load= C(specific heat)* M(quality output per hour )*Temp Change(T1-T2)
    Oversize the chiller by 20% Ideal Size in KW = KW x 1.2
    Noted : T1:Incoming Water Temperature (℃)      T2:Required Chilled Water Temperature(℃)    
        
    For example, what size of chiller is required to cool 5m³ water from 25°c to 15 °c in 1 hour?
    Temperature Differential = 25℃-15℃=10℃
    Water Flow Rate = 5 m³/hour
    Cooling Capacity in KW = 5 x 10 ÷ 0.86 = 58,14 KW
    Oversize the chiller = 58.14 x 1.2 = 69.76 KW
    69.96kw cooling capacity for chiller is required.

    3.Types of chiller system?
    There are two types of chiller :Air Cooled Glycol Chiller and Water Cooled Glycol Chiller.
    Water cooled chiller needs a separated water cooling tower and water cooling pump ,if you don‘t have exsiting water cooling tower,we suggest you use air cooled chiller; But if your ambiemt temperature is very high above 55℃ ,we suggest you use water cooled chiller , as it is easier to dissipate heat for water cooled chiller with water cooling tower.

    4.Whether chillers need built-in Tank ornot?
    In a chiller system, a tank is usually equipped to buffer the thermal load of the chiller.
    But should we choose a built-in type of tank or an external type of tank?
    A chiller with a built-in tank is easier to install and can be used simply by connecting a water pipe to your application. 
    But it has a limited capacity and is not suitable for applications with larger chilled water demands.External tank’s capacity can be customized according to specific needs. 
    It can buffer a larger heat load, store more chilled water, but the installation will be more troublesome.
    If you don‘t have external water tank ,we suggest our chiller built-with water tank ,which is easy for you to install.

    5.Cooling capacity unit conversion?

       1 KW=860 kcal/h ; 

       1 TON=3.517 KW; 

       1 KW=3412 Btu/h;

    6.Can ethylene glycol be used for cooling? What are the advantages?

    The main advantage of glycol coolants is their antifreeze properties. Glycol mixtures are perfect for cooling things because they have a lower freezing point than water. Thirty percent ethylene glycol freezes at 6.8°F (-14°C), while pure water freezes at 32°F (0°C).


    7.How Often Should Ethylene Glycol Be Changed?
    We recommend mixing distilled water and 100% USP propylene glycol at a ratio of 1 part ethylene glycol to 2 parts water. Inhibiting ethylene glycol is possible but not required. We recommend an annual glycol solution change as a maintenance routine for your glycol chiller.
    Please submit your basic information, we will contact you as soon as possible!

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