Feature ArticleEV Air Conditioning System
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In sustainable transportation systems, electric vehicles play a crucial role in reducing fuel consumption and pollutant emissions. Since 1994, Kaori brazed plate heat exchangers (BPHE), as a leading manufacturer, have been committed to developing green and energy-efficient products, providing professional energy-saving solutions to industries in more than 70 countries. Kaori’s ultra-high-pressure C Series and high heat transfer performance R Series plate heat exchangers are optimized for natural refrigerant CO₂ (R744), serving as gas coolers, condensers, evaporators, and economizers in heat pump and refrigeration systems, significantly enhancing system reliability, availability, and efficiency.
To date, thousands of electric buses in Europe have been equipped with Kaori ultra-high-pressure C Series brazed plate heat exchangers (BPHE), which have been validated and adopted by well-known MAC (Mobile Air Conditioning) system manufacturers. This MAC design differs from conventional systems by adopting R744 refrigerant and utilizing a dual-loop system (heat pump and reverse cooling), successfully demonstrating advantages over HFC and HFO refrigerants:
- As temperature decreases, battery capacity also declines. Based on thermal management principles, heat pumps can raise battery temperature in low-temperature environments during winter. With this principle, the R744 heat pump HVAC system can operate continuously at -15°C, and the entire electric bus does not require additional heat exchangers, reducing overall vehicle weight.
- R744 heat pumps offer superior energy efficiency, with higher COP (Coefficient of Performance), reducing power consumption and increasing the driving range of electric buses.
- R744 is environmentally friendly, with zero ODP (Ozone Depletion Potential) and extremely low GWP (Global Warming Potential). Due to its ease of reaching transcritical conditions, it is particularly popular in commercial markets, especially in refrigeration and heat pump applications, and is expected to become a key trend in automotive applications.
The number of electric vehicles worldwide continues to grow rapidly. When it comes to the Chinese EV market, the scale is remarkable. Kaori brazed plate heat exchangers (BPHE) have been successfully installed in high-speed trains of CRRC in China, providing suction line heat exchangers (Suction Line HX) for R744 HVAC systems, with performance up to 45 kW.
Kaori brazed plate heat exchangers embrace a “green” philosophy to realize a sustainable future. Product design focuses on reducing emissions while also promoting environmentally friendly practices through technological innovation to achieve sustainable development.
About Kaori Brazed Plate Heat Exchangers (BPHE) – Innovation, Quality, Responsibility, Honor
Since its establishment in 1970, Kaori has been dedicated to developing heat transfer technologies and manufacturing world-class energy-efficient products, providing solutions for HVAC, refrigeration, heating, heat recovery, green energy, and related industries. In 1994, Kaori established its BPHE division. Leveraging its experience in mechanical equipment and automated manufacturing, along with customer-oriented product development and service culture, Kaori BPHE quickly became a reliable and well-recognized product.
In recent years, with advanced brazing expertise, innovative heat exchange technology, high-quality standards, and advanced manufacturing equipment, Kaori has collaborated with many well-known companies to develop and manufacture heat exchange components for green energy systems. Moving forward, Kaori will continue to invest in R&D of advanced heat transfer technologies, produce high-quality energy-efficient products, and expand its global presence.
☑︎ Recommended Model >>> C Series
Contact Us NowThe Kaori team is ready to provide you with customized high-efficiency thermal solutions for marine and transportation applications. Please feel free to contact us (sales@kaori.com.tw). Contact us for more product information >>> Product Inquiry |
