at the end of march in wuhan, grass grows and birds fly, and cherry blossoms dance all over the city. as one of the automobile manufacturing centers in china, wuhan economic and technological development zone has welcomed a technological feast in the automotive industry - the "second automotive co ₂ heat pump air conditioning and thermal management system technology seminar". experts, scholars, and industry leaders from all walks of life gathered in wuhan car valley to brainstorm and promote the development of automotive co ₂ heat pump air conditioning and thermal management system technology, and to fulfill the kigali amendment as soon as possible, to achieve a new path of high-quality development in the automotive industry and jointly explore the future of the industry.
this conference is hosted by the foreign cooperation and exchange center of the ministry of ecology and environment, the vehicle thermal management working committee of the china refrigeration society, the automotive thermal system branch of the china association of automobile manufacturers, the hot vehicle thermal system branch of the china society of automobile engineers, the automotive thermal system branch of the china refrigeration and air conditioning industry association, and the wuhan economic and technological development zone. it is hosted by the technical center of dongfeng motor group co., ltd. and xi'an jiaotong university, supported by units such as sanhua holdings group co., ltd. dr. zhang rongrong, vice general manager of sanhua automotive parts co., ltd. and chief technology officer of sanhua central research institute, was invited to serve as the chairman of the morning conference and give a keynote speech. at the same time, zhou jiangfeng, the general manager of hangzhou green energy new energy vehicle parts co., ltd., and other leaders and colleagues were invited to attend the meeting.
three flowers theme report
dr. zhang rongrong was invited to give a keynote speech on "key components and system applications of co ₂ - the impact of refrigerant charge and expansion valve opening on system performance".
dr. zhang first introduced the key components of co ₂ that sanhua has developed, such as exv (electronic expansion valve), accu ihx (reservoir gas separator), and chiller (vehicle plate heat exchanger). then, through detailed experimental testing data, he demonstrated the refrigerant "under charge" and "appropriate charge" in the carbon dioxide system under refrigeration and heating conditions, respectively the impact of three scenarios of overcharging and the opening of the expansion valve on system performance. the experimental results show that under different co ₂ charging rates, the adjustment of the electronic expansion valve has a significant impact on the system cop, and the presence of gas plays an important role in refrigerant migration and management, which can balance the demand for refrigerant charging under heating and cooling conditions.
starting from the sub topic of "the impact of refrigerant charge and expansion valve opening on system performance", dr. zhang provides a glimpse into sanhua's relentless pursuit and professional focus on technological innovation in the development of co ₂ key components and system applications, as an expert in the field of thermal management for new energy vehicles. as of now, sanhua has applied for more than 100 patents and authorized more than 30 patents in the field of key components for automotive co ₂, including more than 60 patents for co ₂ electronic expansion valves and more than 10 authorized patents.
"night of three flowers" banquet
after the forum ended, the exclusive sponsorship of the "three flowers night" dinner by sanhua kicked off.
dr. zhang rongrong, vice general manager of sanhua automotive parts co., ltd. and chief technical officer of sanhua central research institute, delivered a toast. he first expressed gratitude to the china refrigeration society, dongfeng automotive technology center, and other units for carefully organizing this technical exchange seminar. he also expressed gratitude to the china refrigeration society, china automobile industry association, china automotive engineering society, china refrigeration and air conditioning industry association, and other units for their continuous care and support to sanhua, sanhua will never forget its original intention and work hand in hand with everyone to contribute to the green and low-carbon development of china's automotive industry, helping to achieve the industry's "dual carbon" goals smoothly.
after the toast, dr. zhang and professor cao feng from xi'an jiaotong university, chairman of the vehicle thermal management committee of the china refrigeration society, secretary general of the automotive thermal system branch of the china association of automobile manufacturers xue qingfeng, chairman of the automotive thermal system branch of the china association of automobile manufacturers tian changqing, secretary general of the automotive thermal system branch of the china association of refrigeration and air conditioning manufacturers xu yuanyuan sun xifeng, a first-class technical expert from dongfeng motor group technology center, jointly raised a glass and opened the dinner party.
at the dinner party, a group of heroes gathered together, enjoying delicious wine and food, and toasting and arranging. everyone had a great conversation, showing their expectations for the future. in the atmosphere of gathering and communication, the "night of three flowers" dinner was successfully held.