"Creating cold water from waste heat" Exhibited at the 1st [International] Thermal Energy Exhibition

Utilizing the principle of "uchimizu," we create cold water from heat. We will explain that technology (mechanism) in an easy-to-understand manner.

In normal physical phenomena, it is considered difficult to directly create cold water from heat. Heat is a form of energy in an object, and since energy is conserved, it is necessary to convert the heat into another form of energy in order to cool it down. Because heat naturally flows from high temperature to low temperature, it is possible to cool an object by removing heat. For example, it becomes possible to create cold water by extracting heat from a heat source through water and transferring it to another object to lower its temperature.

• Heat exchanger
• Other air conditioning equipment

Reusing "unused" heat! We will explain the specific process of generating "cold water" from "heat."

First, a low-temperature, low-pressure gas-liquid mixed refrigerant (water and water vapor) enters the evaporator. Inside the evaporator, the pressure is almost at a vacuum state, so the boiling point of water at 100°C is reduced to about 7-10°C. By absorbing heat from relatively warm water in the chilled water piping, the refrigerant (water) boils and turns into water vapor. The water vapor is drawn into the absorber, similar to the suction side of the compressor in a vapor compression refrigeration cycle. The water vapor is absorbed by the absorbent liquid "lithium bromide" and is pumped into the regenerator. In the regenerator, the mixture of refrigerant and absorbent liquid is heated and separated back into the original water vapor and absorbent liquid. The absorbent liquid returns to the absorber, while the water vapor is sent to the condenser. There are methods for adding heat in the regenerator, such as combustion using fuels like gas or oil, or using steam or hot water. The refrigerant, which has returned to water after losing heat in the condenser, is depressurized in the expansion device and flows back to the evaporator, repeating the cycle.

• Heat exchanger

Effective use of heat is possible! We have prepared a lineup of equipment focusing on small and medium-sized machines!

Since the launch of our absorption chiller in 1970, we have adopted air conditioning and cooling systems utilizing cogeneration and waste heat from factories in countries around the world. We offer a new model that fits a variety of cooling temperature ranges, the "New WFC-S Series," along with the "WFC-MB100," "CH-KP30," and "CH-KGST Series." Additionally, we have a lineup of various solar thermal hot water systems for the use of renewable energy in hot water supply, which dramatically reduces CO2 emissions for customers with high hot water demand. 【Product Lineup】 ■ Hot Water Utilization WFC-S Series ■ Hot Water Utilization WFC-MB ■ Wood Pellet Utilization CH-KP30 ■ Steam Utilization CH-KGST Series ■ Solar Thermal Utilization Equipment (Commercial/Residential) *For more details, please refer to the PDF materials or feel free to contact us.

• air conditioning

We are promoting the "5 Ts" of agriculture: Timely T, Quantitative T, Quality T, Low Personnel T, and Low Price T.

■Energy sources: Utilization of diverse energy sources ➡ Low cost ■Indoor environment control system: Creating "four seasons" with hot and cold water ➡ Quantitative and consistent quality ■ICT/IoT technology: Solving the labor shortage problem ➡ Timely and low personnel ■Cultivation control system: Pursuit of deliciousness and increased income ➡ Quantitative and consistent quality 　　　　　　　　　　　　　　⇊⇊⇊⇊ ■Environmentally friendly agricultural system: Energy-saving and energy-generating agricultural houses ➡ Low cost and consistent quality

• Other metal materials
• Solar power generator

Nitto Kohki will hold the "2026 Attack Fair in Misato" at the Misato City Cultural Hall Exhibition Room for two days on Wednesday, August 26, 2026, and Thursday, June 27, 2026. The Attack Fair is an exhibition where you can actually "see, touch, and operate" Nitto Kohki's products. Additionally, there will be wonderful souvenirs for visitors and many fun activities prepared. We look forward to welcoming everyone!

Dates: December 16 (Wednesday) to December 18 (Friday), 2026, 10:00 AM - 5:00 PM Venue: Tokyo Big Sight (Tokyo International Exhibition Center), South Hall 1 & Conference Building

[Speaker] Nobuhito Sato, Partner Attorney at Mori Hamada & Matsumoto Law Firm Foreign Law Joint Enterprise [Key Lecture Content] As the social implementation of Level 4 autonomous driving technologies, such as robot taxis and self-driving buses, progresses, there are numerous legal issues that need to be considered for commercialization, including vehicle safety assessments, the division of roles among operating entities, and responsibilities and cause investigations in the event of accidents. Although the legal amendments following the 2022 Road Traffic Act revision have settled down, developments in the regulatory framework are ongoing, including a report from the Ministry of Land, Infrastructure, Transport and Tourism regarding responsibilities in the event of accidents due in 2025, revisions to guidelines concerning safety assurance, and agreements on new international standards for autonomous driving systems (ADS) and regulations concerning self-driving vehicles without steering wheels at the UN WP.29 in June 2026. In this lecture, Nobuhito Sato, who has been responsible for the revision of the Road Transport Vehicle Act related to autonomous driving and the examination of liability for damages at the Ministry of Land, Infrastructure, Transport and Tourism, and who has continued to participate in relevant government study groups, will systematically explain the latest discussions and practical considerations.

[Instructor] Professor Makoto Kawase, Ritsumeikan University Business School [Key Lecture Content] The rapid evolution of AI, the development of mobility symbolized by autonomous driving, the ongoing global trends of declining birth rates and aging populations, and the rise of Generation Z are all significant changes that are currently transforming the structure of industries and society. The future is not a continuation of the present. To create our own future, we must first think about what we can do in the future through "backcasting," which involves envisioning from the future. Then, we will consider how to realize that vision and what actions to take to connect it to reality. By going through this series of processes, the somewhat vague image of the future becomes connected to the present reality, taking shape and becoming realized. In this seminar, the instructor, who has worked on future creation projects in large corporations, will introduce the steps for creating the future that have been developed through trial and error, and will also explain how to cultivate future creators. This seminar is recommended for those who want to create new businesses in a changing future or who are struggling with the idea that the future cannot be found on the current trajectory.

[Speaker] Representative of Post-Petroleum Strategy Research Institute, LLC, Mr. Kisho Oba [Key Lecture Content] The crisis in the Strait of Hormuz that began at the end of February 2026 has significantly shaken the foundations of Japan's energy procurement. While physical supply has been maintained to some extent through alternative transportation, stock releases, and reduced demand, the impact has manifested in multiple layers, including rising costs through war insurance premiums, freight charges, exchange rates, and interest rates, as well as disruptions downstream such as in naphtha. In this lecture, we will organize the course of the crisis based on data related to navigation, detours, and stockpiling, and present structural changes in the crude oil and LNG markets, along with risk scenarios anticipated for 2027. Furthermore, we will provide insights on how procurement, purchasing, and risk management should assess price fluctuations and decarbonization investments.