トレイン・ジャパン List of Products and Services

Air conditioning accounts for a significant portion of a building's energy consumption. For example, in office buildings, air conditioning represents about 28% of energy consumption (according to the Energy Conservation Center, Japan). In other words, when considering energy costs related to building operation and management, such as measures against global warming and reductions in utility expenses, energy-saving measures for air conditioning can be effective. This article introduces key points for reducing the running costs of air conditioning. [Contents] ■ The challenges of energy-saving air conditioning are solved by LCEM ■ Considerations by stage ■ Examples of systems that reduce air conditioning running costs ■ Benefits for energy-saving companies *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

• air conditioning

The cooling water supply temperature directly affects the efficiency of the refrigeration unit. For example, during winter or intermediate periods, operating at a lower cooling water temperature improves the efficiency of the turbo refrigeration unit and reduces power consumption. However, the operation of the refrigeration unit also requires the operation of pumps and cooling towers, and for optimal energy savings, it is necessary to focus not only on the refrigeration unit but also on the efficiency of the entire system. This article explains the cooling water control of turbo refrigeration units, so please take a moment to read it. [Contents] - Considerations for the lower limit of cooling water temperature - Cooling towers - Cooling water pumps - Refrigeration units - Considerations for the cooling water system - Optimization control of cooling water *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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In building management, improving the indoor environment has become a very important factor for maintaining tenants and ensuring the safety and hygiene of workers and visitors. Many building owners and managers may be considering the introduction of high-performance air purifiers that can improve indoor air quality (IAQ) to an appropriate level without making extensive modifications to large-scale HVAC systems. This article explains the system configuration and mechanisms of the Train Air Cleaning System. [Contents (Excerpt)] ■ What is the Train Air Cleaning System (TACS)? ■ System configuration and mechanisms ■ Sterilization effects on airborne bacteria ■ Characteristics of TACS ■ Examples of integration into AHUs *For more detailed information, please refer to the related links. *For more details, please check the PDF materials or feel free to contact us.

• Other clean room equipment and facilities

In contrast to "room air conditioners" primarily used in households, air conditioners used in stores and large facilities are generally referred to as "package air conditioners." This article explains the types and features of package air conditioners. It provides detailed information on the mechanisms of package air conditioners and the differences between them and multi air conditioners for buildings, so please take a moment to read it. [Contents] ■ Types of commercial air conditioners ■ Differences between package air conditioners and multi air conditioners for buildings ■ Mechanism of package air conditioners ■ Mechanism of rooftop package air conditioners *For detailed content of the article, please refer to the related links. *For more information, please check the PDF materials or feel free to contact us.

• air conditioning

When comparing the COP of absorption chillers and turbo chillers, the COP of turbo chillers listed in catalogs is around 6, which is high, but this value is calculated based on the power consumption of secondary energy. On the other hand, the COP of absorption chillers is calculated from primary energy, and to compare the efficiency of chillers under the same conditions, a primary energy conversion is performed. This article provides a detailed explanation of primary energy conversion. [Contents] ■ Primary energy and secondary energy ■ Power generation loss and transmission loss ■ Primary energy conversion values *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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Surging is a phenomenon in which the discharge gas pressure of a centrifugal compressor is overcome by the pressure on the discharge side, resulting in the inability to discharge gas or the occurrence of gas backflow. When surging occurs in a centrifugal compressor, vibrations become intense, and operation becomes unstable. This indicates that the pressure head of the compressor is insufficient. This article provides a detailed explanation of the causes of surging in turbo refrigerators and the surging limits, so please take a moment to read it. [Contents] ■ Compression method of turbo refrigerators ■ Causes of surging in turbo refrigerators ■ Surging limits of turbo refrigerators *For more detailed information, you can view it through the related links. *For further details, please refer to the PDF materials or feel free to contact us.

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An absorption chiller uses "water" as a refrigerant and is a device that produces chilled or hot water by utilizing the absorption refrigeration cycle. Since it uses "water" found in nature, it is also called a natural chiller. This article will explain the structure and mechanism of absorption chillers, comparing them with turbo chillers that are often used for the same purpose. [Contents (excerpt)] ■ Types of chillers ■ Vapor compression refrigeration cycle ■ Absorption refrigeration cycle ■ Absorbent: What is lithium bromide? ■ Advantages of absorption chillers *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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Train is a long-established manufacturer that has conducted advanced technological revolutions in the development of turbo refrigeration systems. It has fundamentally changed the industry's perception of large air conditioning systems, and the continuation of this technological innovation has resulted in high-efficiency turbo refrigeration systems that quickly adopted non-fluorocarbon refrigerants such as "R-1233zd" and "R-514A." This article will explain the structure and mechanism of turbo refrigeration systems. [Contents] ■ Methods of air conditioning ■ Central air conditioning ■ The work of turbo refrigeration systems ■ Types of turbo refrigeration systems ■ Components of turbo refrigeration systems ■ Refrigerant circulation in turbo refrigeration systems *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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When expressing the capacity and efficiency of refrigeration machines and chillers, various units are used. This article explains the representative units related to air conditioning equipment. In actual properties, if the annual load pattern and cooling water temperature are known, and if the analysis results show that the annual operating ratio and cooling water temperature at partial load differ from the values in the IPLV calculation formula, it may be necessary to adjust the values in the calculation formula to match the analysis results. [Contents (Excerpt)] ■ Before the calculation formula - Basics of refrigeration and heat ■ Unit of refrigeration capacity: "ton of refrigeration" ■ Calculation formula for ton of refrigeration ■ Efficiency of refrigeration machines: What is COP? ■ Calculation formula for IPLV (Integrated Part Load Value) *Detailed content of the article can be viewed through related links. *For more information, please refer to the PDF materials or feel free to contact us.

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Air conditioning equipment such as air conditioners and turbo refrigeration units generates cold water or air by repeating four processes known as the refrigeration cycle. In this column, we will explain the p-h diagram, which illustrates the state of the refrigerant during each process on a single line diagram, allowing us to understand the conditions and values of each component and apply this knowledge to the design and operation of refrigeration units. Please take a moment to read it. [Contents] ■ What can be understood from the p-h diagram ■ p-h diagram for single-stage compression ■ p-h diagram for multi-stage compression *For detailed content of the article, please refer to the related links. *For more information, please check the PDF materials or feel free to contact us.

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Air conditioning equipment such as air conditioners and turbo refrigerators creates cold water and air by utilizing refrigerants and refrigeration cycles. This article explains the refrigeration cycle of air conditioning, including the relationship between changes in the state of matter and pressure. Please take a moment to read it. 【Contents】 ■ Heat and state changes ■ Pressure and changes in matter ■ Refrigeration cycles of turbo refrigerators and home air conditioners ■ Why are refrigerants (such as Freon gas) commonly used? *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF document or feel free to contact us.

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Train, as an environmental expert in the HVAC industry, is actively transitioning to non-fluorinated next-generation refrigerants to achieve sustainability. As the second phase of this non-fluorinated initiative, we will soon announce a turbo chiller that uses the refrigerant "R-514A." This article provides a detailed explanation of the benefits of the refrigerants used in Train's turbo chillers and the services related to refrigerant conversion. [Contents] ■ Main features of the non-fluorinated refrigerant R-514A ■ About the turbo chiller using R-514A ■ Refrigerants suitable for conversion from HFC refrigerants *For more details, you can view the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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As a measure against global warming, there is a demand for the reduction of HFC refrigerants, which have a high GWP (Global Warming Potential) value and are widely used in air conditioning and refrigeration equipment. This article explains the current main applications of HFC refrigerants in refrigeration and air conditioning equipment, as well as the future transition to alternative refrigerants. Please take a moment to read it. [Contents] ■ Proportion of HFC emissions by equipment type ■ Status of transition from HFCs to low GWP refrigerants by application ■ Progress of transition to low GWP refrigerants in various applications *For detailed content of the article, please refer to the related links. *For more information, please check the PDF materials or feel free to contact us.

• air conditioning
• Other air conditioning equipment

Freon was developed by humanity for use in devices aimed at cooling objects. It is an artificial substance that evaporates easily and has the property of dissolving oils, which has led to its application in various products and industrial uses. However, Freon also has weaknesses, and the Montreal Protocol, which came into effect in 1989, regulates two types of specific Freons: CFCs and designated Freons: HCFCs. Specific Freons are to be completely phased out by 1996, and designated Freons will soon be abolished as well. This article outlines the new refrigerants and explains the benefits of their introduction. [Contents] ■ The relationship between new refrigerants and Freon ■ From alternative Freons to new refrigerants ■ The trend of new refrigerants cannot be overlooked in the future *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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Keynote speech by Tetsuro Kishimoto, Chairman of the Environmental Energy Network 21, on "Trends in Next-Generation Low GWP and Non-Freon Refrigerants in the Air Conditioning and Refrigeration Industry," is presented in its third installment. In this final installment, we will cover "Amendments to the High-Pressure Gas Safety Act and the Fluorocarbon Emission Control Act," "Trends in Refrigerants," and "Protecting the Global Environment." Please take a moment to read it. [Contents (Excerpt)] ■ Summary of the keynote speech "Trends in Next-Generation Low GWP and Non-Freon Refrigerants in the Air Conditioning and Refrigeration Industry" ■ Speaker Profile ■ Amendments to the High-Pressure Gas Safety Act and the Fluorocarbon Emission Control Act (Slides No. 25-29) ■ Trends in Refrigerants (Slides No. 30-32) ■ Protecting the Global Environment (Slides No. 33-43) *For more detailed information, please refer to the related links. *For more details, please check the PDF materials or feel free to contact us.

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This is the second installment of the explanation of the keynote speech by the chairman of the Environmental Energy Network 21, titled "Trends in Next-Generation Low GWP and Non-Fluorinated Refrigerants in the Air Conditioning and Refrigeration Industry." This time, we will cover "Conditions Required for Refrigerants" and "New Indicators (GTP)" from the topic "(3) Development of Low GWP and Non-Fluorinated Refrigerants." We encourage you to read it. 【Contents】 ■ Digest of the keynote speech "Trends in Next-Generation Low GWP and Non-Fluorinated Refrigerants in the Air Conditioning and Refrigeration Industry" ■ Speaker Profile ■ Conditions Required for Refrigerants (Slides No. 14-20) ■ About New Indicators (Slides No. 21-24) ■ Notes on Handling of Presentation Materials *Detailed content of the article can be viewed through the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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On April 19, 2017 (Wednesday) in Tokyo and April 21 (Friday) in Osaka, we held a "Product Announcement Conference for the New Turbo Refrigeration Unit Utilizing Non-Freon Next-Generation Refrigerant R-514A" for invited guests. As part of the keynote speech, the Chairman of the Environmental Energy Network 21 delivered a presentation on "Trends in Next-Generation Low GWP Non-Freon Refrigerants in the Air Conditioning and Refrigeration Industry." In this context, we will explain the content of the presentation, including the birth of refrigerants and trends in next-generation refrigerants, in three parts. [Contents] ■ Keynote Speech Digest: "Trends in Next-Generation Low GWP Non-Freon Refrigerants in the Air Conditioning and Refrigeration Industry" ■ Speaker Profile ■ History of Refrigeration, Air Conditioning, and Refrigerants (Slides No. 3-5) ■ Background of Freon Countermeasures (Slides No. 6-12) ■ Notes on Handling Presentation Materials *For detailed content of the article, please refer to the related links. *For more information, please refer to the PDF materials or feel free to contact us.

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The "International Symposium on Environment and New Refrigerants" (Kobe Symposium) was held on December 6th (Thursday) and 7th (Friday), 2018. This event, organized by the Japan Refrigeration and Air Conditioning Industry Association, has been held biennially since 1994 and is highly regarded internationally as a platform for the presentation of information related to the environment and refrigerants by government, organizations, research institutions, universities, and companies. This article will provide a report on our participation in the 13th Kobe Symposium. [Contents] ■ Program Overview - Day 1: 12/6 (Thursday) - Day 2: 12/7 (Friday) ■ Impressions (from our participants) *For detailed information, please refer to the related links. *For more details, please check the PDF materials or feel free to contact us.

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This is a packaged air conditioner suitable for large spaces such as restaurants, kitchens, amusement parks, supermarkets, home centers, cinemas, and factories. In addition to heating and cooling, it has an outdoor air intake function that maintains fresh air quality at all times, eliminating the need for air purifiers even in indoor spaces where odors are a concern. 【Features】 - Automatic switching between heating and cooling even in winter - Can be used as an outdoor unit - Easy installation without the need for refrigerant piping work - Simple maintenance for inspections and repairs even during business hours - Various options available, including all-fresh air systems

• air conditioning

Leveraging the experience and achievements of a long-established manufacturer of refrigeration units, we offer a wide range of "control and monitoring systems" including air conditioning equipment, system controllers, sensors, and software, providing comprehensive support from installation to after-service. From building automation to integrated management of multiple facilities, we propose highly flexible system constructions primarily based on web technology that are optimal for our customers. 【Features】 ■ Extensive lineup of control devices ■ Consistent support ■ Proposal of system construction primarily based on web technology

• Other process controls

This is a turbo chiller that was the first in the world to adopt non-Freon refrigerants, significantly reducing environmental impact. Due to the use of low-pressure refrigerants, it is not subject to the High-Pressure Gas Safety Act, eliminating the need for qualified personnel and various notification management tasks. Additionally, as it is non-combustible, there is no need to comply with the regulations and guidelines required for 2L (mildly flammable) refrigerants. 【Features】 ■ Non-Freon and ultra-low GWP ■ Low-pressure refrigerant ■ World’s highest efficiency COP 6.5 (50 Hz example) ■ Non-combustible ■ Low rotation, low noise, low vibration

• air conditioning

This is a turbo refrigeration unit with a history of continuous improvements since its development in 1938, along with many achievements and reliability. Not only is it highly efficient and environmentally friendly, but its design is also backed by years of research and technological expertise in the structure of refrigeration units. With a simple structure and consideration for customer safety and environmental protection, it boasts an overwhelming market share worldwide and contributes to energy savings in buildings and factories around the globe. 【Features】 ■ Low-pressure refrigerant (R-123) ■ World’s highest efficiency COP 6.6 (50 Hz) ■ Non-flammable ■ Low rotation, low noise, low vibration ■ Simple structure with high reliability ■ Can be delivered in sections

• Other air conditioning equipment