Single sided ventilation Cross ventilation Atria (single-cell) Chimneys (multi-cells)
Buoyancy driven

OptiVent 2.0 is a simple natural ventilation steady-state tool which was initially developed as an in-house tool by a practice of architects and environmental design consultants in the UK.
The tool has been developed to expand the range of generic airflow strategies that can be explicitly evaluated and support strategic decisions regarding the feasibility of natural ventilation during the early design stage.


This tool has been developed by Juan VallejoJuan Vallejo
Dipl. Arch, MSc, PhD candidate.
Environmental Design Analyst. Natural Cooling Ltd, UK.
and Pablo AparicioPablo Aparicio
Dipl. Eng, MSc, Industrial Organization and Business Management, Ph.D.
University of Seville, Spain.
, coordinated by Brian FordBrian Ford
Emeritus Professor University of Nottingham, UK.
. Acknowledgements to the University of Nottingham (United Kingdom) and Universidad de Sevilla (Spain).

The authors wish to thank Camilo DiazCamilo Diaz
PhD, Environmental Design.
Associate Director at WSP/Parsons Brinckerhoff, UK.
for the development of the original version of Optivent in 2003, to David Etheridge for his helpful comments during the peer review process, and the postgraduate students from University of Westminster, University of Nottingham and University College of London (UCL) for providing useful feedback when approaching to the last stage of development.