Transcription of Ventilation for buildings — Calculation methods for the ...
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Ventilation for buildings — Calculation methods for the ...
Document type: European Standard Document subtype: Document stage: Formal Vote Document language: E J:\Intcom\CEN\CEN 156\prEN 15242\prEN STD Version CEN/TC 156 Date: 2006 prEN 15242 CEN/TC 156 Secretariat: BSI Ventilation for buildings Calculation methods for the determination of air flow rates in buildings including infiltration ICS: Descriptors: prEN 15242:2006 (E) 2 Contents Page Foreword .. 4 Introduction .. 5 1 7 2 Normative references .. 7 3 Terms and 8 4 Symbols and abbreviations .. 10 5 General 11 6 Instantaneous Calculation (iterative method).. 14 Basis of the Calculation method .. 14 Mechanical air flow Calculation .. 15 Introduction .. 15 Required air flow qv-sup-req and qv-exh 15 Cuse 15 Ventilation effectiveness 15 Local air flow control Coefficient 16 Csyst coefficient.
ventilation system where the air is supplied or extracted from the building or both by a fan and using exhaust air terminal devices, ducts and roof /wall outlets. In single exhaust mechanical systems, the air have entered the dwelling through externally mounted air transfer devices, windows and leakages 3.13 airing
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