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      VFA Solutions successfully finished the project SchoolVent = School ventilation with cooling and low pressure filtering of the Top Consortium Knowledge and Innovation (TKI) Urban Energy. The goal of the project was the development and practical testing of a ventilation system suited for renovation of schools and day care centres with an 80% reduction of the energy costs for cooling and filtering. VFA Solutions participated in this project together with TNO Science & Industry and Lucam B.V.

      Goal

      The goal of this project was the development and practical testing of a ventilation system suited for renovation of schools and day care centres with an 80% reduction of the energy costs for cooling and filtering. The system is equipped with Smart Sensoring to report anomalies of a class A indoor environment. The cool and filter techniques are an important contribution towards the reduction of the necessary cool and ventilation energy in buildings. They create the possibility of energy neutral or energy supplying buildings. In addition to schools and day care centres, offices will be the largest market share on the long term. The energy savings due to energy efficient cooling and low pressure filtering will be 0,25 Petra Joules per year in 2030.

      Short description

      The system is equipped with Smart Sensoring to report anomalies of a class A indoor environment. The cool and filter techniques are an important contribution towards the reduction of the necessary cool and ventilation energy in buildings. They will create the possibility of energy neutral or energy supplying buildings. In addition to schools and day care centres, offices will be the largest market share on the long term. The energy savings due to energy efficient cooling and low pressure filtering will be 0,25 Petra Joules per year in 2030.

      Result

      • 40-80% Reduction in energy consumption in an existing school.
      • Dew point cooling in combination with heat recovery in counter flow heat exchanger;
      • Electrostatic filter module for 10,000 m³/h applicable in air handling units;
      • One air handling unit supplies air for 4-5 classrooms (~2000 m³/h per classroom)
      • Smart sensor system: automatic reporting of CO2, temperature, humidity and PM2.5 particulates;
      • TNO Report:
        “The VFA ASPRA electrostatic filter has been scaled up from 2,000 to 10,000 m3/h and is built into the filter section of the air handling unit, see Figure 1. The filter efficiency meets the specifications of an E10 filter at an almost 80% lower pressure drop. At a low airflow rate (3,000 m3/h) even the specifications for E11 filter are almost met. Fine dust (PM2.5) is removed for 90 – 95% from the supply air. In the air-conditioned rooms, this results in a 70 to 96% lower PM2.5 concentration compared to the reference room.

      Partners
      • VFA Solutions B.V.
      • TNO Science & Industry
      • Lucam B.V. 

      More information:

      TNO Report Schoolventilatie met energiezuinige koeling en lage druk filtering (Schoolvent)

      Optimal Controllers for optimal air quality in classrooms)

      Topsectorenergie.nl

      In this [Dutch] webinar on Thursday 11 June, organized by ISIAQ.nl and TVVL, you can look back at how practical attention is given to the importance of a good indoor climate in schools in times of corona, and the role that installations or ventilation can play in this. . Ventilation is important. But how do you ensure adequate ventilation without creating a draft when it gets colder in autumn?

      One solution created by VFA Solutions is presented in the video at 38:13.

      Source