News

Research news from Qin's group

- International workshop – IEA Annex 86 ST3 meeting 3 May 2022 

International Energy Agency EBC Annex 86 ST3 workshop was held online on 3 May 2022. There are 8 invited talks representing the cutting-edge of novel materials for indoor environment control. The workshop is chaired by Prof. Menghao Qin and Prof. Jensen Zhang. 

 

 


- Invited speech at International Symposium on Power Engineering and Engineering Thermophysics 30 December 2021 

 

 

The world’s demand for comfort cooling is growing at a staggering pace. Space cooling will become the single largest user of electricity in buildings, accounting for 16% of the global electricity demand by 2030. The majority of this growth will come from emerging economies with hot and humid climates and growing populations. The regulation of the latent load remains a critical problem for energy-efficient built environment control. Unlike the traditional vapor compression system that features high-energy consumption and environmental-unfriendly processes, desiccants represent an alternative air-conditioning method that takes advantage of the low-grade energy, decreases the energy consumption and even employs use of water vapor. However, for a long time, solid desiccants that can be used for built environment control are very limited. Traditional/conventional desiccants, such as silica gel and zeolite, have relatively low water vapor uptake and high energy demand for desorption, which render them unsuitable for energy-efficient humidity control. In the paper, two types of novel functional materials, i.e. metal-organic frameworks (MOFs) and polymer hydrogels (pHyG) developed at DTU are presented. The hygrothermal and sorption properties of these materials are measured. Both MOFs and pHyG have high water vapor uptake and low regeneration temperature and could be used for energy-efficient indoor moisture control. Some examples of the applications of these new materials developed at DTU are presented. We conclude with prospective directions for next generation solid desiccants to promote energy-efficient moisture control from scientific research to practical application.

 


 

- Invited speech at IAQVEC Technical Seminar 11 November 2021 

Title: Novel functional materials for energy-efficient indoor moisture control by Prof. Qin

The International Association of Indoor Air Quality, Ventilation and Energy Conservation in Buildings (IAQVEC) is pleased to announce that we continue to organize the technical seminar series with prestigious scholars from a variety of building/IEQ-related research disciplines. Prof. Menghao Qin (Technical University of Denmark (DTU), “Novel functional materials for energy-efficient indoor moisture control”) will be our speaker this month.

We kindly invite you to the third inaugural seminar, which will take place on November 11 (Thursday), 2021, at 3:00 PM in CET. (You may need to convert the schedule to your local time at http://www.timebie.com/std/gmt+1.php?q=13.5 )

The seminar will be held online, and the following is the meeting location:

  • Meeting ID: 953 5401 1526
  • Passcode: 689862

 


 

- Webinar – Smart materials for energy efficient IAQ management 12 October 2021 

 

In this webinar, we will address the opportunities to use novel materials (from advanced functional nano-materials to bio-based building materials) as building components to actively/passively manage the IAQ, for example, through active paint, wallboards, and textiles coated with advanced sorbents or catalysts and quantify their potential, based on the assessment framework developed in the IEA EBC Annex 86 “Energy Efficient Indoor Air Quality Management in Residential Buildings”.

This webinar is organized by the Air Infiltration and Ventilation Centre & the IEA EBC Annex 86 “Energy Efficient Indoor Air Quality Management in Residential Buildings” (https://annex86.iea-ebc.org/). The webinar is facilitated by INIVE (http://www.inive.org/).

  • 14:00 | Introduction, Menghao Qin, Leader of ST3, IEA EBC Annex 86 – Technical University of Denmark (DTU), Denmark
  • 14:10 | Metal-organic Frameworks for indoor environment control, Menghao Qin – DTU, Denmark
  • 14:30 | Evaluating and Modeling of Indoor Passive Panel Technologies at National Research Council Canada, Doyun Won – NRC, Canada
  • 14:50 | Electrospun fibers for Supply Air Filtration in residential buildings, Alireza Afshari – Aalborg University, Denmark
  • 15:10 | Impact of VOC and moisture buffering capacities of bio-based building materials on IAQ and thermal comfort, Anh Dung TRAN LE – UPJV, France
  • 15:30 | Questions and Answers, Jensen Zhang, Co-Leader of ST3, IEA EBC Annex 86 – Syracuse University, USA
  • 15:45 | Closing & End of webinar
For further information please scroll down to download the flyer and slides and view the recordings.
 

 


 

- Keynote workshop at International Building Physics Conference (IBPC2021) 26 August 2021

How the COVID-19 pandemic will reshape the built environment, Organized by Prof. Menghao Qin

How to make the built environment safe
The outbreak of COVID-19 has reminded us the basic question that may have long been overlooked: are our built environments really safe? Attention must be paid to the increasing sensitivity of the public to potential health implications of the built environment.The presentation first analyzes the range of ventilation dilution rates in a number of SARS and COVID-19 infection and non-infection cases. Different levels of ventilation requirements for “regular” air quality and infectious disease transmission control are discussed. Means to achieve different levels of goals are discussed with specific examples. The presentation will conclude by listing a number of opportunities and challenges to make built environments safer. The presentation will also propose some ideas how to make simulation tools readily useful rather than simply academic exercises.

 


 

- Keynote speech at the International Conference on Moisture in Buildings (ICMB21), UCL London 28 June 2021

 

Title: Novel functional materials for energy-efficient indoor moisture control, by Prof. Menghao Qin

The regulation of the latent load remains a critical problem for built environment control. Unlike the traditional vapor compression system that features high-energy consumption and environmental-unfriendly processes, desiccants represent an alternative air-conditioning method that takes advantage of the low-grade energy, decreases the energy consumption and even employs use of water vapor. However, for a long time, solid desiccants that can be used for built environment control are very limited. Traditional/conventional desiccants, such as silica gel and zeolite, have relatively low water vapor uptake and high energy demand for desorption, which render them unsuitable for energy-efficient humidity control. In the paper, two types of novel functional materials, i.e. metal-organic frameworks (MOFs) and polymer hydrogels (pHyG) developed at DTU are presented. The hygrothermal and sorption properties of these materials are measured. Both MOFs and pHyG have high water vapor uptake and low regeneration temperature and could be used for energy-efficient indoor moisture control. Some examples of the applications of these new materials developed at DTU are presented. We conclude with prospective directions for next generation solid desiccants to promote energy-efficient moisture control from scientific research to practical application.

  

 


 

- Kick-off meeting of IEA Annex 86 ST3 project: Smart materials as an IAQ management strategy 22 June 2021

IEA Annex 86 Subtask 3 identifies opportunities to use novel materials (from advanced functional nano-materials to bio-based building materials) as building components to actively/passively manage the IAQ, for example, through active paint, wallboards and textiles coated with advanced sorbents or catalysts and quantify their potential based on the assessment framework developed in the project.

 


 

- New EU H2020 project: Measuring Envelope products and systems contributing to next generation of healthy nearly Zero Energy Buildings

The aim is a deep analysis of building envelope systems for their optimization during the operation phase considering users experience to improve the mutual behavioural conditions in terms of both energy-saving and comfort. Dedicated wearable sensors will be designed and developed to assess users’ perceptions of the main known parameters (temperature, humidity, and visual comfort) and to correctly adapt the automation logic to these.

 


- New International Energy Agency (IEA) EBC Annex 86 project launched. 

The goal of the project is to accelerate the development of better and more energy efficient IAQ management strategies to address rapidly changing expectations of the home environment due to challenges such as peak oil, climate change or pandemics. Prof. Qin will lead the research task for smart materials for IAQ management. 

 


The 8th International Building Physics Conference (IBPC2021) will be hosted by DTU Civil Engineering on 25-27 August 2021 in Copenhagen. 

Organization Committee:

  • Carsten Rode
  • Menghao Qin
  • Mikkel Kragh,

  • Steffen Petersen

  • Ruut Hannele Peuhkuri

  • Per Kvols Heiselberg,

  • Petter Wallentén

  • Jesper Arfvidsso

 

IBPC2018 in Syracuse, USA

 

https://www.staff.dtu.dk/menqin/news
30 NOVEMBER 2022