Written by:

  • Guangyu Cao, Norwegian University of Science and Technology (NTNU), Norway
  • Manuel Gameiro, University of Coimbra – Pólo II, Portugal
  • Jianlin Wu, Deputy Director, High Performance Building Research Center (HPBC)
  • Institute of Building Environment and Energy, China Academy of Building Research

China Innovation Alliance for Heating, Ventilation and Air-conditioning (CAHVAC) is the Chinese organisation, with approximately 40,000 members dedicated to advancing heating, ventilation, air conditioning and refrigeration to serve humanity and to promote a sustainable technology in China. In October 28, 2011, the first MoU was signed between CAHVAC and   Federation of European Heating, Ventilation and Air-conditioning (REHVA), which represents, with its 27 member associations in Europe, more than 120.000 professionals in the area of HVAC. In the framework of the relationships between the two organizations, a delegation with more than 50 persons came from China to participate in CLIMA 2019 conference.

A photo of Chinese delegates in CLIMA 2019

A CAHVAC-REHVA workshop entitled Energy in Buildings-Paths in Europe and China-Two Zooming Experiences was organized during the CLIMA 2019. It comprised, from each association:

 1) A large scale presentation about energy markets, primary energy data, targets regarding energy efficiency and emissions, etc

2) A medium scale presentation about buildings and urban environment, where topics like smart cities, nearly zero energy buildings, nearly zero energy districts and integration of renewables may be addressed;

3)A micro-scale presentation related to indoor environmental quality, where monitoring web-based tools, human factors, the smart readiness indicator (for the European side) may be the topics for the presentation.

In total, six presentations were done:

  • Nearly zero energy buildings in China – history, status and future, Wei Xu, President of CAHVAC, China Academy of Building Research, China
  • Numerical simulation and experiment investigation of phase change energy storage device in the heat pump assisted solar heating system. Yong Wang, Chongqing University, China
  • Radiant Floor Cooling and Applications in Airport Terminals. Xiaohua Liu, Tsinghua University, China
  • Energy in Buildings in Europe: An Overview, Manuel Gameiro da Silva, Vice-President of REHVA, Chair of Education and Training Committee, University of Coimbra, Portugal
  • Ventilation and indoor air quality in healthcare facilities–practices and challenges. Guangyu Cao, Norwegian University of Science and Technology, Norway
  • Decentralized and centralized demand response control of district heating system in education building, Juha Jokisalo, Risto Kosonen, Aalto University, Finland

 A photo of the CAHVAC-REHVA workshop chaired by Prof. Manuel Gameiro da Silva, Vice-President of REHVA and Prof. Xu Zhang, Vice President of CAHVAC

After the workshop, a new MoU was signed by Mr. Wei Xu, the president CAHVAC and Mr. Frank Hovorka, the president of REHVA. The purpose of this Memorandum of Understanding is to strengthen the relationship between REHVA and CAHVAC and to promote substantial and tangible actions to increase the co-operation between the two associations.

A photo of the ceremony of signing the MoU between CAHVAC-REHVA

A photo of the ceremony of signing the MoU between CAHVAC-REHVA





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