Smart Buldings in Practice: CO2 Monitoring Project in Weilovka

Three months ago, we launched a project designed for smart buildings at Weilovka, the Secondary School of Automotive and Informatics in Prague´s Hostivař. We installed sensors monitoring CO2, temperature and humidity values in twenty classrooms. We analysed data in ten classrooms in the older school building first and then in the other ten rooms in the new building.

What did the data show?

• The environment in the new building clearly demonstrated better results:
  • After each lesson began, more time was required for the CO2 level to increase again.
  • At the end of each lesson, the CO2 level decreased at a faster rate.
• The temperature in the computer classrooms measured higher than in the other rooms.
  • Both monitored computer rooms showed an interesting trend: the CO2 level in the computer rooms also decreased faster than in the other rooms.
  • We assume that the fans inside the computers contributed to the faster air circulation.
• Classrooms with more plants achieved better measured values than those without.
  • Thus, photosynthesis is not only a myth.
• The efficiency of the rule of rapid ventilation has also been confirmed.
  • After opening numerous windows the level of CO2 rapidly decreased to the outside level, while the temperature in the room decreased only slightly.
  • Over the short period of time, the temperature returned to its original values.

This pilot project clearly indicates the importance of monitoring of CO2 in buildings. That is why at TTC MARCONI, we are actively focused on the topic of smart buildings, where the Internet of Things (IoT) plays a key role. IoT is significantly changing the possibilities of automation and control in buildings.

Photo: Shutterstock