BSI PD ISO/TR 16219:2024
$215.11
Fans. System effects and system effect factors
| Published By | Publication Date | Number of Pages |
| BSI | 2024 | 90 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms, definitions and symbols |
| 10 | 4 Origin of fan system effects |
| 12 | 5 Definitions of system effect factor (SEF) 5.1 Inlet SEF |
| 14 | 5.2 Outlet system effect |
| 17 | 6 Examples of inlet SEF 6.1 Introduction 6.2 Axial fans 6.2.1 Experimental setups |
| 22 | 6.2.2 Results |
| 24 | 6.3 Centrifugal and mixed-flow fans 6.3.1 Experimental setups |
| 31 | 6.3.2 Results |
| 35 | 7 Examples of outlet SEF 7.1 Axial fans 7.1.1 General 7.1.2 Experimental setups |
| 36 | 7.1.3 Results |
| 37 | 7.2 Centrifugal and mixed-flow fans 7.2.1 Experimental setups |
| 38 | 7.2.2 Results |
| 39 | 8 Reducing system effects 8.1 General 8.2 Inlet effects 8.2.1 General |
| 40 | 8.2.2 Non-uniform flow |
| 41 | 8.2.3 Swirl or vorticity 8.2.4 Inlet blockage |
| 44 | 8.3 Outlet effects 8.3.1 General 8.3.2 Insufficient duct length |
| 45 | 8.3.3 Outlet obstruction 8.3.4 Non-uniform flow |
| 48 | 8.4 Examples of the effects of poor inlet and outlet connections 9 Conclusions |
| 50 | Annex A (informative) Basic principles on fan performance representation |
| 78 | Annex B (informative) Fan system calculation |
| 87 | Annex C (informative) Changes in fan shaft input power (absorbed) in relation to system effects |
| 88 | Bibliography |
