NFPA 204 2021

$80.71

NFPA 204: Standard for Smoke and Heat Venting

Published By	Publication Date	Number of Pages
NFPA	2021	96

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Category: NFPA

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Description

Apply NFPA 204 for smoke and heat venting systems to help prevent the accumulation of products of combustion within buildings. Engineers developing fire protection schemes and enforcers charged with approving plans can use NFPA 204, Standard for Smoke and Heat Venting, to learn the critical requirements and find additional information addressing the design of venting systems for emergency venting of products of combustion. The requirements in NFPA 204 include the following: Fundamentals, including design objectives, design basis, and determination of contents Vents Air inlets Draft curtains Fire design, including steady (limited-growth) fires and growing (continuous-growth) fires Sizing vents Mechanical smoke exhaust systems Venting in sprinklered buildings Inspection and maintenance Design documentation The standard’s manual calculation and computer-modeled solution methods can aid in design. In addition, the equations and models can help a designer determine the tools necessary to develop vent designs based on selected performance objectives related to a specific building or a specific set of circumstances. Revisions keep NFPA 204 consistent with other NFPA® codes and standards. In the 2021 edition of NFPA 204, the requirements for sprinkler waterflow activating automatic smoke vents have been removed. Further, SI unit (metric) conversations have been added to Annex C, and the informational references have been updated.

PDF Catalog

PDF Pages	PDF Title
2	Important Notices and Disclaimers
3	Additional Important Notices and Disclaimers
8	Chapter 1 Administration 1.1 Scope. 1.2 Purpose. (Reserved) 1.3 Application. 1.4 Retroactivity. 1.5 Equivalency. 1.6 Units and Formulas.
10	Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions.
11	Chapter 4 Fundamentals 4.1 Design Objectives. 4.2 Design Basis. 4.3 Determination of Contents Hazard. 4.4 Venting. 4.5 Smoke Production.
12	4.6 Vent Flows. Chapter 5 Vents 5.1 Listed Vents. 5.2 Vent Design Constraints. 5.3 Methods of Operation. 5.4 Dimensions and Spacing of Vents. 5.5 Mechanical Smoke Exhaust Systems.
13	Chapter 6 Air Inlets 6.1 General. 6.2 Construction. 6.3 Location. 6.4 Installation. 6.5 Methods of Operation.
14	6.6 Dimensions and Spacing of Air Inlets. 6.7 Air Paths. Chapter 7 Draft Curtains 7.1 General. 7.2 Construction. 7.3 Location and Depth. 7.4 Spacing. Chapter 8 The Design Fire 8.1 General. 8.2 Steady (Limited-Growth) Fires. 8.3 Growing (Continuous-Growth) Fires.
15	Chapter 9 Sizing Vents 9.1 General. 9.2 Hand Calculations.
17	9.3 Models.
18	Chapter 10 Mechanical Smoke Exhaust Systems 10.1 General. 10.2 Exhaust Rates. 10.3 Fire Exposure. 10.4 Number of Exhaust Inlets. 10.5 Intake Air. Chapter 11 Venting in Sprinklered Buildings 11.1 Design. 11.2 Automatic Sprinkler Systems. 11.3 Storage Occupancies Protected by Control Mode Sprinklers.
19	Chapter 12 Inspection and Maintenance 12.1 General. 12.2 Requirements. 12.3 Inspection, Maintenance, and Acceptance Testing. 12.4 Conduct and Observation of Operational Tests.
20	12.5 Air Inlets. 12.6 Ice and Snow Removal. Chapter 13 Design Documentation 13.1 Documentation Required.
21	Annex A Explanatory Material
30	Annex B The Theoretical Basis of LAVENT
43	Annex C User Guide for the LAVENT Computer Code
57	Annex D Sample Problem Using Engineering Equations (Hand Calculations) and LAVENT
72	Annex E Predicting the Rate of Heat Release of Fires
79	Annex F Design Information
87	Annex G Informational References