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Natural ventilation: Harnessing natural forces to create comfort conditions within buildings
Natural ventilation and passive cooling is the harnessing of natural forces — heat generated buoyancy, wind pressures, thermal mass, phase change, adiabatic processes and so on, to provide comfort conditions within buildings without the use of mechanical processes, ie, from air conditioning systems, chillers or refrigeration processes. Although the principles of natural ventilation have been understood for many years and have become increasingly popular in recent times, there are many ways in which these systems may fail or not work to best advantage. This article sets out to explain some of the issues surrounding the use of natural ventilation and passive cooling.
The full article is available to institutions that have subscribed to the journal
Derek Walker IEng ACIBSE MASHRAE is a director of EDP Consulting Ltd, a building services consulting practice that specialises in building sciences — the interaction of engineering services with building fabric. He has been a practising engineer for over 32 years with 16 years’ experience in designing lowenergy and passive buildings. He has acquired a large amount of knowledge resulting from working with architects in delivering low-energy buildings.