Solar Energy
Solar Energy
5 years ago

Overheating phenomena induced by fully-glazed facades: Investigation of a sick building in Italy and assessment of the benefits achieved via fuzzy control of the AC system

Overheating phenomena induced by fully-glazed facades: Investigation of a sick building in Italy and assessment of the benefits achieved via fuzzy control of the AC system
This paper investigates the overheating due to overabundant solar gains through fully glazed façades, aligned on the heliothermal axis. An Italian sick building was selected as case study to quantify the level and the characteristics of discomfort and verify whether a smart control of the AC system could suffice in restoring satisfactory environmental conditions. Fuzzy control logics were designed and implemented to regulate the speeds of the false-ceiling fan coil unit serving the office, selected as exemplary environment. Data were collected by an articulated sensor network mapping internal and external climate conditions as well as the thermal distribution on the internal side of the glazed façade and inside the fan coil ducts. Each configuration was assessed on a representative sunny day in terms of global comfort (operative temperature, PMV), local discomfort (draught rate, vertical gradient) and energy consumption. Serious overheating episodes were recorded throughout the year and in every configuration. Nevertheless, non-negligible improvements were achieved by including outdoor temperature and solar radiation in the control algorithm which allowed to narrow down the offset from to the set point (resulting in PMV<1 for the 97.2% of the time) and limit the use of the full-power mode (with all associated energy benefits).

Publisher URL: www.sciencedirect.com/science

DOI: S0038092X17308915

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.