Demonstrating the Value of Mixed Mode Ventilation in Singapore

Rising global temperatures are increasing the demand for air conditioning, which inevitably contributes to environmental concerns. Mixed Mode Ventilation (MMV) offers a sustainable alternative, operating on the principle of cooling only when necessary, prioritising natural ventilation to achieve thermal comfort and supplementing with ceiling fans and localised cooling as needed. This approach not only enhances energy efficiency but also offers increased resilience in the face of future pandemics and haze episodes, due to its flexibility in switching between various operating modes.

In collaboration with the Building and Construction Authority, National University of Singapore, Singapore Institute of Technology, Kajima, and SJ Group, SGBC held two workshops on 20 Sept. 2024 to showcase the viability of MMV in Singapore with the results of a recently completed living lab on the premises of SGBC Member Azendian Solutions.

During the sessions, Principal Investigator Dr. Adrian Chong covered the following in detail:

  • The rationale and approach to implementing MMV in the tropics
  • The results from experiments characterising occupant thermal comfort over time and across various MMV operating modes
  • The quantified energy savings achieved through MMV

 

Participants also got a chance to experience the different cooling modes, as well as heard sentiments from the actual users of the space.