CO2-based demand controlled ventilation under new ASHRAE Standard 62.1-2010: a case study for a gymnasium of an elementary school at West Lafayette, Indiana

Ng, Malcolm Owen; Qu, Ming; Zheng, Pengxuan; Li, Zhiyuan; Hang, Yin

doi:10.1016/j.enbuild.2011.08.021

Cited by 52 publications

(20 citation statements)

References 18 publications

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“…Occupants are the main source of CO 2 as well as other bioeffluents (such as body odour) that might be unacceptable to other occupants (Dougan and Damiano, 2004;Petty, nd). Being linked to occupancy, particularly in commercial buildings, CO 2 has been used as an indicator of ventilation rates and used as a basis for designing ventilation solutions; however levels of CO 2 are not necessarily directly linked to levels of other pollutants (Dougan and Damiano, 2004;Nga et al, 2011). The measurements taken in the case-study buildings illustrate this point.…”

Section: Carbon Dioxide Comentioning

confidence: 99%

Thermal comfort and indoor air quality in super-insulated housing with natural and decentralized ventilation systems in the south of the UK

Sassi

2017

Architectural Science Review

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Improved energy performance standards are resulting in better insulated and more airtight building. In such buildings ventilation can be provided by natural means alone or in conjunction with extract mechanical ventilation or with wholehouse mechanical ventilation with or without heat recovery. This paper reports on a study funded by the NHBC Foundation of the indoor environment of eight super-insulated homes with natural and decentralized ventilation systems in the south of the UK. The aim was to examine the effectiveness of such ventilation options. The buildings were monitored for one year in relation to temperature, relative humidity, CO 2 , CO, NO 2 , CH 2 O and TVOC. The building occupants' feedback and IES building modelling triangulated the site data. The study showed that natural and decentralized ventilation systems provided good air quality in the case-study buildings and allowed users to create comfortable thermally differentiate environments in response to their preferences.

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Section: Carbon Dioxide Comentioning

confidence: 99%

Thermal comfort and indoor air quality in super-insulated housing with natural and decentralized ventilation systems in the south of the UK

Sassi

2017

Architectural Science Review

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“…Other indoor CO 2 sources are plant respiration, direct fire, and outdoor CO 2 concentration. CO 2 gas produced by occupants is counted as an adequate indicator of IAQ [19][20][21][22][23] and it is used to demonstrate the acceptability of an indoor environment in terms of human body odor and population density [2]. Most IAQ studies in schools show that the CO 2 concentration reaches very high values, which requires improvements in the ventilation control systems to reduce the amount of pollutants in indoor environments [6,24,25].…”

Section: Co 2 Generation Ratementioning

confidence: 99%

A modeling and simulation study about CO 2 amount with web-based indoor air quality monitoring

2018

Turk J Elec Eng & Comp Sci

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Human breath causes indoor air quality (IAQ) to get worse in overcrowded places such as schools, hospitals, and offices where people spend most of their time, and it is rarely felt. For a healthy and comfortable living environment, pollutant gases must also be monitored in addition to temperature and humidity control. In this respect, carbon dioxide (CO 2) is considered as one of the main indoor air pollutants to determine ventilation requirements. In this study, a mathematical model and simulator software have been developed to predict CO 2 concentrations under different indoor conditions and to visualize the predicted results that come from the model. During the study some experiments are conducted to validate the model at a faculty building of Sakarya University. In these experiments, first CO 2 concentrations are predicted using the model and then they are measured to validate the model for target classrooms under different indoor conditions depending on the number of students, their physical characteristics, and activities. The study shows that increasing the number of students has considerable impacts on the amount of CO 2 produced and it can be used as the minimum value of the outdoor ventilation rate. The modeling and simulator software can be used for analyzing alternative building designs such as different ventilation types, occupant profiles, and numbers and dimensions of windows, doors and rooms in terms of IAQ.

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“…CO2 is a major product of microbial metabolism and fermentation [14,15]. In rooms with poor ventilation, CO2 can accumulate and elevate levels far above the average outdoor level of 400 ppm [16]. The Occupational Safety and Health Administration (OSHA) has set a permissible exposure limit (PEL) for CO2 of 5000 ppm for an 8-hour workday [17].…”

Section: A N U S C R I P Tmentioning

confidence: 99%

Remote monitoring of winery and creamery environments with a wireless sensor system

Madrid

Boulton

Knoesen

2017

Building and Environment

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CO2-based demand controlled ventilation under new ASHRAE Standard 62.1-2010: a case study for a gymnasium of an elementary school at West Lafayette, Indiana

Cited by 52 publications

References 18 publications

Thermal comfort and indoor air quality in super-insulated housing with natural and decentralized ventilation systems in the south of the UK

Thermal comfort and indoor air quality in super-insulated housing with natural and decentralized ventilation systems in the south of the UK

A modeling and simulation study about CO 2 amount with web-based indoor air quality monitoring

Remote monitoring of winery and creamery environments with a wireless sensor system

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