A chiller is a refrigeration system that cools equipment to maintain proper temperatures. It prevents heat damage and ensures systems operate smoothly and efficiently.
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An industrial or commercial chiller system uses refrigerant to absorb heat. Water-cooled chillers use water towers to cool equipment, while air-cooled chillers rely on ambient airflow.
The main chiller types include air and water chillers. They are distinguished by their different vapor systems:
We’ve summarized air and water chillers below to help you better understand them. While both have the same parts, including a compressor, evaporator, expansion valve and condenser, their methods of extracting excess heat differ. This difference is indicated in their titles since air chillers extract heat using air, while water chillers use water to extract heat from the system.
Fans blow cool air into air chillers to regulate the condenser and prevent it from overheating. These chillers are installed on a building’s exterior, saving internal space.
In water-cooled chillers, water is pumped through a sealed condenser and sprayed through the cooling tower, extracting heat as the water evaporates. This highly effective method saves more energy and money spent on energy bills.
Some common applications for air and water chillers include:
Before purchasing an industrial chiller, determine the right type for your specifications and choose the best product. Here are some aspects that may influence your decision.
Equipment use is one of the first variables to consider when buying a chiller. Various applications require different chillers, and understanding which kind you need is an excellent start to the buying process.
For many unit applications, size and efficiency go hand in hand. An oversized chiller can consume more energy than necessary, cutting your profit margins. Meanwhile, an undersized chiller may struggle to meet your facility’s needs. A compact chiller that removes the heat from your equipment allows you to cool it effectively while saving energy and money. To determine the correct chiller size for your facility, you must determine the heat load, temperature, flow rate, and coolant type required for your equipment.
While many industrial chiller manufacturers offer mass-produced cooling products, it’s best to partner with one that offers customization. An experienced chiller manufacturer can provide cooling options that meet your industry specifications. When you order a custom-sized chiller, you can rely on it to support your needs.
The ideal chiller relies on your equipment location. Outdoor applications are prone to fluctuating ambient temperatures, while the air surrounding indoor applications may reach excessively high temperatures. Because of these natural temperature differences, indoor or outdoor equipment may require particular sizing or specific accessories such as sump heaters, heat tracing, insulated components, or special controls for components.
Installing a safe chiller is crucial for your equipment, employees and facility. If you operate in hazardous conditions or process flammable chemicals, an explosion-proof chiller is essential to preventing potential explosions. Only consult with an experienced manufacturer that designs and builds systems to meet National Fire Protection Association standards.
Choosing a high-quality chiller is vital for work requiring precise temperature control. Reliable, custom-designed chiller systems offer this feature to prevent damage and ensure your equipment operates efficiently.
If your leaving temperature must remain below 35 degrees Fahrenheit, you may require a low-temperature chiller. Choosing the correct chiller ensures your business operations continue smoothly without failure. Reputable manufacturers have the knowledge and technology to design and build quality low-temperature chiller systems, providing you with the necessary temperature control.
Cooling fluid can affect your chiller system, so don’t neglect this factor. Common cooling fluids are propylene glycol mix, Dynalene heat transfer, and water and specialized fluids. Your municipal water supply can contain contaminants that corrode chiller components.
While using a glycol-water mix is always best, your cooling system may require additional filtration if you pull from a city water source. Consult with your manufacturer to determine if your operating temperatures can affect fluid viscosity.
Some chillers may have voltages requiring specific electrical work. To decide which type of chiller you purchase, determine what voltage your facility can support and how much electrical work your budget allows. You should also consult the chiller manufacturer about which voltage options support more efficient operation.
Cost is also a critical factor. Before purchasing a chiller, consider its upfront cost, operating costs, potential maintenance costs, and expected life span. Air-cooled systems typically have a higher upfront cost and more installation work than water-cooled systems. They also consume a significant amount of energy to power fans, but they can reduce operating costs because they lack the cooling tower that a water-cooled system requires.
Consider your daily usage. While a central chiller typically costs less than a portable chiller, a portable system may better suit your needs if you need cooling for various purposes at different times.
A chiller’s return on investment depends on its life span. While one model may have a higher initial cost, getting a system with longevity is worthwhile. Comparing different models and designs can help you choose the system with the best financial benefits.
Sizing a chiller depends on several variables. A critical factor in determining the cooling load requirements is all the heat the chiller must remove and where it originates. For example, several heat sources can exist in a building, including the processes that run machinery and equipment and the heat generated from them. People occupying the space also contribute to the total heat load.
Then, consider heat from external sources such as the temperature outside and heat that infiltrates, especially in warmer climates.
The correct formula helps determine the required chiller size. This process is represented in four steps:
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To explain this further, if you need to cool 6 gallons per minute (GPM) from 65 degrees Fahrenheit — the incoming water temperature — to 55 degrees Fahrenheit, which is the required chilled water temperature, the flow rate is 6 GPM.
Other factors in chiller sizing include choosing the appropriate chiller type for your application and knowing the required flow rate, inlet and outlet temperatures, and the cooling and buffer capacity.
Choosing a high-quality chiller is essential — now you know how many factors influence your purchasing decision. Consulting with a reputable chiller manufacturer can help you navigate your options.
Smart Family of Cooling Products manufactures high-quality chillers and offers professional consultation to guide you through purchasing, installation and beyond. Our unique expertise informs clients about their options and determines which systems best meet their needs. When you work with Smart Family, you can discuss your specifications with a knowledgeable engineer who will help you make an informed decision.
Our experts focus on technical details such as application, sizing, location, cooling fluid, temperature control needs, voltage and safety features, equipping us with the information necessary to design and build effective systems.
As a leader in the cooling industry and one of the top chiller manufacturers in the USA, we have experience manufacturing chillers according to custom specifications. We are also one of the few manufacturers able to build explosion-proof and low-temperature systems according to strict codes and standards.
Purchasing the chiller that meets your specifications lets you cool your equipment while saving energy and money. Before committing to a product, consider essential details and consult a reputable manufacturer about your application.
Smart Family of Cooling Products can guide you through purchasing by focusing on your needs. We offer reliable, efficient chiller systems to provide your company’s equipment with the necessary cooling you can count on.
Chiller systems are essential for maintaining low temperatures required in a wide range of residential, commercial, and industrial applications. Consequently, these systems account for a significant amount of the total energy consumption in North America. In this article, the chiller experts at Cold Shot Chillers will explore the general working principle of a chiller system, some common categories, and critical tips for operating and maintaining them to ensure high-efficiency operations.
Industrial chiller systems play an essential role in various heating, ventilation, and air conditioning (HVAC) systems. Therefore, they are frequently incorporated into a wide range of residential and commercial facilities, including sporting arenas, hotels, apartment blocks, restaurants, hospitals, industrial facilities, and manufacturing plants.
Two key functions of HVAC systems include building dehumidification and cooling. With chiller systems, engineers can meet industrial and commercial cooling requirements in various applications, including metal finishing, plastic processing, water cutting, medical manufacturing, food processing, residential, and welding. Generally, chillers meet these requirements by transferring heat from an internal environment to an external one with a heat transfer device and a refrigerant.
Due to their importance in HVAC systems, chillers account for over 50% of the total electricity consumption in seasonal periods, with an estimated 20% of the total electricity generated in North America.
Chiller systems provide continuous coolant flow to the cool side of a process water system at a conventional temperature of 10°C by leveraging the principle of vapor compression and absorption. Moreover, chiller systems pump coolant through specific industrial processes, resulting in heat extraction from relevant areas of the facility. The coolant then flows back to the return side of the process water system.
Chiller systems also contain a vapor compression mechanical refrigeration system which connects the process water system through an evaporator. This refrigeration system-based refrigerant circulates through other components of the chiller, including the evaporator, compressor, condenser, and expansion device. Each of these components thermodynamically ensures process cooling.
The evaporator, which functions as a heat exchanger, transfers the captured heat to the refrigerant. During heat transfer, the refrigerant evaporates as it changes from a low-pressure liquid into vapor, reducing the process temperature. The compressor performs multiple functions, including removing the refrigerant from the evaporator and ensuring a constantly low evaporator pressure for heat absorption at an appropriate rate.
Additionally, the compressor also raises the outgoing refrigerant vapor pressure to achieve a suitably high temperature for heat release in the condenser. Lastly, the condenser changes the refrigerant back to a liquid state.
Outlined below are four common categories of industrial chillers available for a wide range of residential, commercial, and industrial applications:
Portable chillers with capacities ranging from 30-40 tons exhibit simple designs and low installation costs. On the other hand, central chillers have much larger capacities, come in complicated designs, offer higher efficiencies, and correspondingly higher installation costs.
Some key benefits of portable chillers include easy transportation, simple connection capabilities, and ease of powering. Conversely, central chillers can cool multiple large and variable process loads simultaneously at similar temperatures.
There are various applications for chiller systems in residential, commercial, and industrial sectors. These systems are essential in ensuring adequate temperature levels that are required in the following:
To no one’s surprise, chiller system costs can take up a massive chunk of your building’s utility bills. Fortunately, there are specific measures you can take to maximize your chiller’s efficiency and therefore save on energy costs. Some common tips for operating and maintaining industrial chillers include:
Implementing these best practices will significantly impact your chiller operational efficiency and building operating costs. Predictive maintenance and optimization of your chiller system will ultimately minimize downtime and maximize productivity. Check out our industrial chiller maintenance checklist for more tips.
Cold Shot Chillers is an industrial chiller manufacturer dedicated to building and installing high-quality chillers that meet global industry standards. Our cost-effective and dependable chillers are designed to maintain the ideal temperature for all your industrial needs.
The company is the world’s best Refrigeration Chillers for sale supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.