1. Work package 2 Performance of naturally ventilated buildings NatVent 19 naturally ventilated buildings 19 naturally ventilated buildings The monitoring campaigns The monitoring campaigns The monitoring results The monitoring results Select a building... Select a building... Objectives of WP 2 Objectives of WP 2 The NatVent Buildings The NatVent Buildings JOULE Final conclusions Final conclusions

2. NatVent 19 naturally ventilated buildings 19 naturally ventilated buildings The monitoring campaigns The monitoring campaigns The monitoring results The monitoring results Select a building... Select a building... Objectives of WP 2 Objectives of WP 2 The NatVent Buildings The NatVent Buildings JOULE Final conclusions Final conclusions WP2 - Objectives The aim of this work package was: ò To evaluate the performance of existing ad-hoc buildings designed and constructed specifically as energy-efficient naturally ventilated buildings ò To identify the advantages and shortcomings of natural ventilation strategies ò To specify the overall design and construction conditions required for achieving successful natural ventilation

3. NatVent 19 naturally ventilated buildings 19 naturally ventilated buildings The monitoring campaigns The monitoring campaigns The monitoring results The monitoring results Select a building... Select a building... Objectives of WP 2 Objectives of WP 2 The NatVent Buildings The NatVent Buildings JOULE Final conclusions Final conclusions 19 Monitored Buildings... 19 naturally ventilated buildings were selected from seven EU countries. Overview of the 19 buildings: Belgium: BE1 - BE2 - BE3 Switzerland: CH1 - CH2 - CH3 Denmark: DK1 -DK2 - DK3 Great Britain: GB1- GB2 -GB3 Norway: NO1 - NO2 The Netherlands: NL1 - NL2 - NL3 Sweden: SE1 - SE2 An overview of 19 buildings is given in the document overview.pdf (\Reports\Monitoring\...)

4. NatVent 19 naturally ventilated buildings 19 naturally ventilated buildings The monitoring campaigns The monitoring campaigns The monitoring results The monitoring results Select a building... Select a building... Objectives of WP 2 Objectives of WP 2 The NatVent Buildings The NatVent Buildings JOULE Final conclusions Final conclusions The Monitoring Campaigns The 19 buildings selected were monitored under winter and summer conditions The following parameters were measured in all of the buildings: Temperature Internal air quality (H 2 O, CO 2, …) Ventilation rate Wind outdoor: direction and velocity Wind indoor: velocity The parameters were measured in 4 rooms and 1 corridor for a minimum of one week The basic monitoring set-up and the monitoring protocol is described in document monitor_protoc.pdf (\Reports\Monitoring\…)

5. NatVent 19 naturally ventilated buildings 19 naturally ventilated buildings The monitoring campaigns The monitoring campaigns The monitoring results The monitoring results Select a building... Select a building... Objectives of WP 2 Objectives of WP 2 The NatVent Buildings The NatVent Buildings JOULE Final conclusions Final conclusions WP2 - Monitoring Results The results of the monitoring programmes are presented in the following documents: Summary Reports (\Reports \Monitoring Reports \Summary Reports\…) global presentation of the buildings (  4p./ building) contents: building description - ventilation strategy and technology - winter and summer monitoring results - conclusions Detailed Reports (\Reports \Monitoring Reports \Detailed Reports\…) detailed reports of all 19 monitoring campaigns (  20 p./ campaign) contents: monitoring set up - analysis of results - conclusions The results of the monitoring programmes are presented in the following documents: Summary Reports (\Reports \Monitoring Reports \Summary Reports\…) global presentation of the buildings (  4p./ building) contents: building description - ventilation strategy and technology - winter and summer monitoring results - conclusions Detailed Reports (\Reports \Monitoring Reports \Detailed Reports\…) detailed reports of all 19 monitoring campaigns (  20 p./ campaign) contents: monitoring set up - analysis of results - conclusions You can read and print pdf-files with the Acrobat® Reader ®3.0. Program. This program is free. Download it from the Acrobat web site: www.adobe.com OR run the installation file ar32e301(1).exe in the directory \Installation You can read and print pdf-files with the Acrobat® Reader ®3.0. Program. This program is free. Download it from the Acrobat web site: www.adobe.com OR run the installation file ar32e301(1).exe in the directory \Installation

6. Select a Building... BE2: Keppekouter Building BE2: Keppekouter Building BE3: Renson Headquarters BE3: Renson Headquarters BE1: PROBE Building BE1: PROBE Building CH1: VELUX Building CH1: VELUX Building CH3: Basler Versicherungen Building CH3: Basler Versicherungen Building CH2: EWZ Building CH2: EWZ Building DK1: E.Pihl & Son AS Headquarters DK1: E.Pihl & Son AS Headquarters DK2: BRF Kredit Headquarters DK2: BRF Kredit Headquarters DK3: WindowMaster Office Build. DK3: WindowMaster Office Build. NO1: Ulleval Administration Build. NO1: Ulleval Administration Build. GB1: BRE Energy Efficient Office GB1: BRE Energy Efficient Office GB2: Canning Crescent Centre GB2: Canning Crescent Centre GB3: Portland Street Building GB3: Portland Street Building NO2: Pfizer Building NO2: Pfizer Building NL1: European Patent Office NL1: European Patent Office NL2: Town Hall of Zevenhuizen-M. NL2: Town Hall of Zevenhuizen-M. NL3: Tax Office of Enschede NL3: Tax Office of Enschede SE1: Tage Møller Building SE1: Tage Møller Building SE2: Technical Office of Varberg SE2: Technical Office of Varberg NatVent

7. 19 naturally ventilated buildings 19 naturally ventilated buildings The monitoring campaigns The monitoring campaigns The monitoring results The monitoring results Select a building... Select a building... Objectives of WP 2 Objectives of WP 2 The NatVent Buildings The NatVent Buildings JOULE Final conclusions Final conclusions Final Conclusions (1...) There were 8 key findings from the 19 building monitoring programme: 1. The challenge is to provide comfortable conditions within an energy efficient building. 2. It is essential to understand what natural ventilation actually is. 3. Ventilation for IAQ should optimise both IAQ and energy efficiency 4. The required air flow rates for summer comfort are much higher than for IAQ control and the thermal mass of the building must be accessible 1. The challenge is to provide comfortable conditions within an energy efficient building. 2. It is essential to understand what natural ventilation actually is. 3. Ventilation for IAQ should optimise both IAQ and energy efficiency 4. The required air flow rates for summer comfort are much higher than for IAQ control and the thermal mass of the building must be accessible

8. Final Conclusions (2|) 5. Achieving comfortable conditions in the summer requires more than just high ventilation rates 6. Successful design involves more than simply estimating air flow rates 7.The creation of an attractive environment for innovation is extremely important 8.Natural ventilation can be an attractive option, but NOT the only option You can find more information in the Final Monitoring Report (final_monitor_rep.pdf) in the directory \Reports\Monitoring 5. Achieving comfortable conditions in the summer requires more than just high ventilation rates 6. Successful design involves more than simply estimating air flow rates 7.The creation of an attractive environment for innovation is extremely important 8.Natural ventilation can be an attractive option, but NOT the only option You can find more information in the Final Monitoring Report (final_monitor_rep.pdf) in the directory \Reports\Monitoring NatVent You can read and print pdf-files with the Acrobat® Reader ®3.0. Program. This program is free. Download it from the Acrobat web site: www.adobe.com OR run the installation file ar32e301(1).exe in the directory \Installation You can read and print pdf-files with the Acrobat® Reader ®3.0. Program. This program is free. Download it from the Acrobat web site: www.adobe.com OR run the installation file ar32e301(1).exe in the directory \Installation 19 naturally ventilated buildings 19 naturally ventilated buildings The monitoring campaigns The monitoring campaigns The monitoring results The monitoring results Select a building... Select a building... Objectives of WP 2 Objectives of WP 2 The NatVent Buildings The NatVent Buildings JOULE Final conclusions Final conclusions