AIVC - Air Infiltration and Ventilation Centre

Search form

EBC

You are here

Home  |  ventilation rate

Study on Performance Evaluation of Mechanical Ventilation Systems for Occupied Houses

Takaki R., Yoshino H., Mihara K. , Maatouk K., 2006
Airflow meter | ventilation rate | Field survey | filter | maintenance | mechanical ventilation
Bibliographic info: 27th AIVC and 4th Epic Conference "Technologies & sustainable policies for a radical decrease of the energy consumption in buildings", Lyon, France, 20-22 November 2006
Languages: English

In the first phase of the current project, the ventilation rates of occupied houses in the northern region of Japan were investigated from 2001 to 2005. It was revealed that, despite installing mechanical ventilation system, low ventilation rate was found in many houses. The causes were believed attributing to lack of cleaning of grills, filters and insect protection meshes. The second phase of the project was to investigate the causes and resolve the problems. This project was started in 2005 and 12 houses installed with mechanical ventilation system were investigated. The investigation included measurement of airflow rates at inlet/outlet by using airflow meter, observation of dust conditions in filters and questionnaire survey about the condition of usage and maintenance of the ventilation system. This study found that some of the ventilation systems were not properly operated and airflow rates were insufficient in almost all houses because the dust was accumulated on the filters as airflow rate at inlet/outlet increased after the filter was cleaned. Only very few occupants cleaned the filters regularly as reported in questionnaire survey. The investigation confirmed that airflow meter is a convenient and efficient method to measure airflow rate, particularly for the occupied house. It is thus recommended that periodic measurement using airflow meter should be carried out to monitor the airflow rate


Related publications

Setting sustainable urban development goals and developing energy efficient solutions f
INIVE eeig,
AIVC Literature List 35 is linked to the topics of “building & ductwork airtightnes
AIVC,
Setting sustainable urban development goals and developing energy efficient solutions f
INIVE eeig,