Solar support for natural ventilation

Sławomir Rabczak


One of the most type of buildings ventilation is a natural ventilation, also called as gravitational ventilation. The driving force for natural ventilation comes from the difference in air density. Cold air flows into the rooms through leaks in the windows and walls of the building or through diffusers installed in the windows and walls. Gravitational ventilation systems are the optimal solution because its use only the forces of nature. Unfortunately, it can not always be used. When significant level of air exchange in the room is required, the possibilities of classical air exchange are exceeded (especially in summer). This is a reason, why air flow need forced exchange comes from fan. In summer, the temperature difference between indoor and outdoor air and as well as a difference in density of air columns, does not provide adequate air flow, and can produce an inverse flow in chimney. Systems supporting an air flow by used wind energy does not solve the problem, because it works in the time of maximum ambient temperature (cause of the sun) while the lack of air movement is very often.


natural ventilation; foil exchanger; solar support; heat exchanger

Full Text:


Included Database


Opaliński S, Rabczak S. Gravitational Ventilation, Rzeszów University of Technology Publishing House, Rzeszów 2003.

Allard F. Natural Ventilation in Buildings: A Design Handbook, James $ James, London 1998.

J.ArceaM.J.Jiménezb Kotlarczyk M, Marcinów E, Pisariev V: experimental study for natural ventilation on a solar chimney, Renewable Energy. Elsevier, 2009, 34(12): 2928–2934.

Rakesh K, Chengwang L, Solar chimney. A passive strategy for natural ventilation, Energy and Buildings. Elsevier, 2011, 43(8): 1811–1819.

PN-78/B-03420 Standard. Parameters of external air.

Soteris Kalogirou A. Solar Energy Engineering, Second Edition: Processes and Systems 2nd Edition, Elsevier, 2013.

Boryczko K, Water age ın the water supply network as health rısk factor assocıated wıth collectıve water supply, Ecologıcal Chemıstry And Engıneerıng, Chemıa I Inzynıerıa Ekologıczna, 2016, 23(1): 33–43.



  • There are currently no refbacks.

Copyright (c) 2018 Sławomir Rabczak

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.