Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
EXPERIMENTAL AND NUMERICAL INVESTIGATIONS FOR EVALUATING CONTAMINANT REMOVAL EFFECTIVENESS IN A MIXING VENT ILATED ROOM
For occupants and facility managers of the buildings, assessment of risks related to indoor air quality (IAQ), has become a very complex and challenging issue. To meet the requirements of better indoor air quality, HVAC engineers, world-wide, are facing many challenges related to system design and operation because of development of variety of air distribution systems and innovative diffusers. The demand for appropriate ventilation systems which provide contaminant free healthy air to the occupants is constantly growing. In this context detailed study related to different ventilation systems like displacement ventilation, mixing ventilation and UFAD ventilation systems has become inevitable. The performance of these ventilation systems is affected by variables like air changes per hour, contaminant particle sizes and contaminant source locations. In this paper, performance evaluation of mixing ventilation system based on contaminant removal effectiveness in occupied zone and breathing zone, is presented. For this, rigorous experimentation is carried out in a experimental test room using suitable instrumentation. CFD simulations are also carried out using RNG k-ε model and Drift-flux model. Encouraging results are obtained through both experimentations and simulations. The parametric variations in terms of effects of changes in ACH, contaminant particle size and contaminant source location help in evaluating the given ventilation method based on contaminant removal effectiveness. The results obtained will help in deciding appropriate parametric combinations at operational level which will help in providing cleaner and healthier indoor environment.
EXPERIMENTAL AND NUMERICAL INVESTIGATIONS FOR EVALUATING CONTAMINANT REMOVAL EFFECTIVENESS IN A MIXING VENT ILATED ROOM
For occupants and facility managers of the buildings, assessment of risks related to indoor air quality (IAQ), has become a very complex and challenging issue. To meet the requirements of better indoor air quality, HVAC engineers, world-wide, are facing many challenges related to system design and operation because of development of variety of air distribution systems and innovative diffusers. The demand for appropriate ventilation systems which provide contaminant free healthy air to the occupants is constantly growing. In this context detailed study related to different ventilation systems like displacement ventilation, mixing ventilation and UFAD ventilation systems has become inevitable. The performance of these ventilation systems is affected by variables like air changes per hour, contaminant particle sizes and contaminant source locations. In this paper, performance evaluation of mixing ventilation system based on contaminant removal effectiveness in occupied zone and breathing zone, is presented. For this, rigorous experimentation is carried out in a experimental test room using suitable instrumentation. CFD simulations are also carried out using RNG k-ε model and Drift-flux model. Encouraging results are obtained through both experimentations and simulations. The parametric variations in terms of effects of changes in ACH, contaminant particle size and contaminant source location help in evaluating the given ventilation method based on contaminant removal effectiveness. The results obtained will help in deciding appropriate parametric combinations at operational level which will help in providing cleaner and healthier indoor environment.
EXPERIMENTAL AND NUMERICAL INVESTIGATIONS FOR EVALUATING CONTAMINANT REMOVAL EFFECTIVENESS IN A MIXING VENT ILATED ROOM
V.V.POTDAR 1 (Autor:in) / V.K.PRAVEEN 2 (Autor:in)
25.05.2018
oai:zenodo.org:1253330
International Journa l Of Innovations in Engineering Research And Technology [IJIERT] 5(NATIONAL CONFERENCE ON INNOVATIVE TRENDS IN ENGINEERING & TECHNOLOGY – NITET - 18) 35-39
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
DDC:
690
Room Air and Contaminant Distribution in Mixing Ventilation
| British Library Conference Proceedings | 1996
Room Air and Contaminant Distribution in Mixing Ventilation
| British Library Online Contents | 1996