The multiple tracer gas technique developed at UMIST has been improved so that interconnecting airflows and cell air change rates can be calculated in up to three connected cells of a building. This paper describes the mathematical analysis required to calculate intercell airflows from site measurements of tracer gas concentrations varying with time. Several results of three-cell ventilation and air movement studies in a dwelling are given, thus illustrating the usefulness of the measurement and analysis technique described.
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References
1.
1 Perera MReview of techniques for measuring ventilation rates in multi-celled buildings, Proc. European Community Contractors' Meeting on Natural Ventilation, Brussels (September 1982)
2.
2 Penman J M and Rashid AAn experimental determination of ventilation rates in occupied rooms using carbon dioxideBuilding Environ.15 (1980)
3.
3 Irwin C, Edwards R E and Howarth A TAn improved multiple tracer gas technique for calculating air movement in buildingsAir Infiltration Rev.5(2) (1984)
4.
4 Edwards R E and Irwin CMultiple cell air movement measurements, ventilation strategies and measurement techniquesProc. 6th Air Infiltration Centre Conf., The Netherlands (September 1985)
5.
5 Irwin C, Edwards R E and Howarth A TThe measurement of airflows using a rapid response tracer gas techniqueBuilding Serv. Eng. Res. Technol., 6(4) (1985)
6.
6 Irwin C A method of measuring air movements in compartmentalised buildings PhD thesis, University of Manchester (1985)
7.
7 Irwin C and Edwards R EThe validation of a multiple tracer gas technique for the determination of airflows between three interconnected cellsAir Infiltration Rev.7(4) (1986)
8.
8 Dick J BExperimental studies of natural ventilation of housesJ. Inst. Heating Ventil. Eng.17(X)420 (1944)
