재실자 발생 이산화탄소 가스를 활용한 주거건물의 공기교환율 추정

다국어 초록 (Multilingual Abstract)

The objective of this study is to investigate methodology of estimating air exchange rates using occupant-generated carbon dioxide (CO₂) gas in residential buildings. The method uses build-up and decay of indoor CO₂ concentration data assuming constant air exchange rate and constant CO₂ generation rates by occupants. Field experiment data measured in residential units for 7 days were employed to investigate the CO₂ method and compare the results of air exchange rates estimated by CO₂ method with those by SF6 (sulfur hexafluoride) and PFT (perfluorocarbon tracer). It is found that the daily patterns of CO₂ concentration during the test period are not repeated. Also, it was suggested that the decay curve of CO₂ concentration was more feasible in estimating air exchange rates, due to the insufficient occupant schedule data provided during the experiment. The air exchange rates estimated using three methods showed different results. The CO₂ method using decay curve resulted in similar distribution of the estimated air exchange rates with the values by PFT method. This finding suggests that the occupant-generated CO₂ method can be one of practical methods to estimate air exchange rates for residential units.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 재실자 발생 CO₂를 이용한 환기량 추정방법
• 3. CO₂ 추적가스법의 실제 적용
• 4. 기타 추적가스와의 비교
• 5. 결론
• 참고문헌

참고문헌 (Reference)

1 김훈, "PFT 환기량 측정법과 타 환기량 측정법과의 비교 실험" 26 (26): 661-664, 2006

2 Sundell J., "On the association between building ventilation characteristics, some indoor environmental exposures, some allergic manifestations and subjective symptom reports" (Suppl.2) : 1-148, 1994

3 Turiel, I., "Occupant-generated as an indicator of ventilation rate, LBL-10496"

4 Bartlett K. H., "Modeling of occupant-generated dynamics in naturally ventilated classrooms" 1 (1): 139-148, 2004

5 Won D., "Issues related to the use of as an indicator of ventilation" NRCC 2011

6 Persily A. K., "Evaluating building IAQ and ventilation with indoor carbon dioxide" 103 (103): 1997

7 Fortmann, R.C., "Comparison of methods for the measurement of air change rates and interzonal airflows in two test residences, In Air change rate and airtightness in buildings" American Society for Testing and Materials 104-118, 1990

8 Won D.Y., "Comparison of air exchange rates measured with different methods and influencing factors: preliminary results of a field study involving asthmatic children" 1-6, 2011

9 Guo L., "Carbon dioxide concentration and its application on estimating the air change rate in typical irish houses" 6 (6): 235-245, 2007

10 American Society for Testing and Materials, "ASTM D6245, Standard Guide for Using Indoor Carbon Dioxide Concentrations to Evaluate Indoor Air Quality and Ventilation, ASTM International, West Conshohocken"

11 American Society for Heating, Refrigerating and Air-Conditioning Engineers, Inc., "ASRHAE Hanbook - Fundamentals" ASHRAE 2005