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Performance assessment of demand controlled ventilation controls concerning indoor VOC exposure based on a dynamic VOC emission model

Klaas De Jonge (UGent) , Arnold Janssens (UGent) and Jelle Laverge (UGent)
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Abstract
The performance assessment of ventilation systems often focusses only on CO2 and humidity levels. The indoor Volatile Organic Compounds (VOC) emissions of building materials or other products is thereby overlooked. The new generation of ventilation systems, Demand Controlled Ventilation (DCV), are systems that do not supply the nominal airflow continuously but are controlled by CO2 or humidity sensors in order to save energy. This poses potential problems for exposure to VOCs. In this study, a dynamic VOC model, which takes into account changing temperature and humidity that was derived from literature, is implemented in a CONTAM model of the Belgian reference apartment. The impact of a DCV system on the indoor VOC levels is investigated. Results show that the use of a dynamic model is necessary compared to the previously used approximation of a constant emission. Furthermore, on a system level, the influence of the ventilation system control on the indoor VOC levels shows. The overall VOC concentration in the different rooms will be higher because of lowered ventilation rates. Especially in rooms that are often unoccupied during the day, the accumulation of VOCs shows. In the development of DCV system controls, the aspect of VOC exposure should not be overlooked to be able to benefit from both the energy savings and improved Indoor Air Quality (IAQ).

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MLA
De Jonge, Klaas, et al. “Performance Assessment of Demand Controlled Ventilation Controls Concerning Indoor VOC Exposure Based on a Dynamic VOC Emission Model.” CLIMA 2019 Congress, edited by S.I Tanabe et al., vol. 111, EDP Sciences, 2019, doi:10.1051/e3sconf/201911101051.
APA
De Jonge, K., Janssens, A., & Laverge, J. (2019). Performance assessment of demand controlled ventilation controls concerning indoor VOC exposure based on a dynamic VOC emission model. In S. . Tanabe, H. Zhang, J. Kurnitski, M. C. Gameiro da Silva, I. Nastase, P. Wargocki, … C. Inard (Eds.), CLIMA 2019 Congress (Vol. 111). Bucharest, Romania: EDP Sciences. https://doi.org/10.1051/e3sconf/201911101051
Chicago author-date
De Jonge, Klaas, Arnold Janssens, and Jelle Laverge. 2019. “Performance Assessment of Demand Controlled Ventilation Controls Concerning Indoor VOC Exposure Based on a Dynamic VOC Emission Model.” In CLIMA 2019 Congress, edited by S.I Tanabe, H. Zhang, J. Kurnitski, M.C. Gameiro da Silva, I. Nastase, P. Wargocki, G. Cao, L. Mazzarela, and C. Inard. Vol. 111. EDP Sciences. https://doi.org/10.1051/e3sconf/201911101051.
Chicago author-date (all authors)
De Jonge, Klaas, Arnold Janssens, and Jelle Laverge. 2019. “Performance Assessment of Demand Controlled Ventilation Controls Concerning Indoor VOC Exposure Based on a Dynamic VOC Emission Model.” In CLIMA 2019 Congress, ed by. S.I Tanabe, H. Zhang, J. Kurnitski, M.C. Gameiro da Silva, I. Nastase, P. Wargocki, G. Cao, L. Mazzarela, and C. Inard. Vol. 111. EDP Sciences. doi:10.1051/e3sconf/201911101051.
Vancouver
1.
De Jonge K, Janssens A, Laverge J. Performance assessment of demand controlled ventilation controls concerning indoor VOC exposure based on a dynamic VOC emission model. In: Tanabe S., Zhang H, Kurnitski J, Gameiro da Silva MC, Nastase I, Wargocki P, et al., editors. CLIMA 2019 Congress. EDP Sciences; 2019.
IEEE
[1]
K. De Jonge, A. Janssens, and J. Laverge, “Performance assessment of demand controlled ventilation controls concerning indoor VOC exposure based on a dynamic VOC emission model,” in CLIMA 2019 Congress, Bucharest, Romania, 2019, vol. 111.
@inproceedings{8643783,
  abstract     = {The performance assessment of ventilation systems often focusses only on CO2 and humidity levels. The indoor Volatile Organic Compounds (VOC) emissions of building materials or other products is thereby overlooked. The new generation of ventilation systems, Demand Controlled Ventilation (DCV), are systems that do not supply the nominal airflow continuously but are controlled by CO2 or humidity sensors in order to save energy. This poses potential problems for exposure to VOCs. In this study, a dynamic VOC model, which takes into account changing temperature and humidity that was derived from literature, is implemented in a CONTAM model of the Belgian reference apartment. The impact of a DCV system on the indoor VOC levels is investigated. Results show that the use of a dynamic model is necessary compared to the previously used approximation of a constant emission. Furthermore, on a system level, the influence of the ventilation system control on the indoor VOC levels shows. The overall VOC concentration in the different rooms will be higher because of lowered ventilation rates. Especially in rooms that are often unoccupied during the day, the accumulation of VOCs shows. In the development of DCV system controls, the aspect of VOC exposure should not be overlooked to be able to benefit from both the energy savings and improved Indoor Air Quality (IAQ).},
  articleno    = {01051},
  author       = {De Jonge, Klaas and Janssens, Arnold and Laverge, Jelle},
  booktitle    = {CLIMA 2019 Congress},
  editor       = {Tanabe, S.I and Zhang, H. and Kurnitski, J. and Gameiro da Silva, M.C. and Nastase, I. and Wargocki, P. and Cao, G. and Mazzarela, L. and Inard, C.},
  issn         = {2267-1242},
  language     = {eng},
  location     = {Bucharest, Romania},
  pages        = {5},
  publisher    = {EDP Sciences},
  title        = {Performance assessment of demand controlled ventilation controls concerning indoor VOC exposure based on a dynamic VOC emission model},
  url          = {http://dx.doi.org/10.1051/e3sconf/201911101051},
  volume       = {111},
  year         = {2019},
}

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