Modeling and monitoring of CO,NO and NO2 in a modern townhouse |
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| Institution: | 1. Faculty of Materials Technology, Ho Chi Minh city University of Technology, VNU-HCM, 268 Ly Thuong Kiet street, Ward 14, District 10, Ho Chi Minh City, Viet Nam;2. Technical Equipment and Allocation Administration, Ministry of Public Security, 47 Pham Van Dong, Cau Giay, Ha Noi, Viet Nam;3. Institute of Chemistry and Materials, 17 Hoang Sam, Cau Giay, Ha Noi, Viet Nam;4. Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Viet Nam;5. Duy Tan University, 254 Nguyen Van Linh, Da Nang, Viet Nam |
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| Abstract: | Mass-balance models for indoor concentrations of CO, NO and NO2 were applied to an energy-efficient townhouse. Model parameters included source emission rates, infiltrating airflows, and, for NO2, loss rate coefficients. Emission factors for CO, NO and NO2 were estimated for each of the gas-fired appliances in the house. Airflows were estimated using sulfur hexafluoride (SF6) decay techniques. Loss rates for NO2 were calculated as the difference between NO2 removal rates and estimated air exchange rates; CO and NO concentrations decayed at a rate not significantly different than that for SF6. Comparing model predictions with measured concentrations yielded differences averaging 17% for CO and NO, and 28% for NO2. |
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