NCEUB Conferences, MC2014 Masters Conference People and Buildings

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Multi-objective assessment of ventilation strategies in a case-study dwelling in the Delhi climate
Caiyu Chen, Payel Das, Emily Nix

Date: 2014-09-19 04:30 PM – 04:40 PM
Last modified: 2014-09-18

Abstract


Ventilation plays a crucial role in providing a comfortable and healthy indoor environment for occupants. In this study, a typical flat constructed by the Delhi Development Authority (DDA) was modeled in EnergyPlus. Different ventilation strategies including architectural revision and mechanical interventions were applied to this model. Considering potential health and energy impacts of ventilation systems, PM2.5 concentration, overheating time and energy consumption were chosen to assess the strategies. ANOVA tests and multi-objective assessment were carried out to estimate the impact of different interventions and to determine the optimal healthy and energy-saving strategy. Results showed that all interventions including the enlargening of windows, movement of kitchen, exhaust fan, air conditioning and zone control significantly affected the contaminant concentration while the reduction of overheating was much more significant with air conditioning. Overall, the multi-objective assessment shows that the ventilation strategy of zone control is the most reasonable choice.