ISO 24678-7:2019 PDF

Fire safety engineering — Requirements governing algebraic formulae — Part 7: Radiation heat flux received from an open pool fire

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Title (English):

ISO 24678-7:2019

Fire safety engineering — Requirements governing algebraic formulae — Part 7: Radiation heat flux received from an open pool fire

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 40
Publication date:: March 20, 2019
Edition:: ISO IS 24678 edition 1 version 1
ICS:: 13.220.01

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Description (English):

The requirements in this document govern the application of a set of explicit algebraic formulae for the calculation of specific characteristics of radiation heat flux from an open pool fire. This document is an implementation of the general requirements provided in ISO 16730‑1 for the case of fire dynamics calculations involving a set of explicit algebraic formulae. This document is arranged in the form of a template, where specific information relevant to the algebraic formulae is provided to satisfy the following types of general requirements: a) description of physical phenomena addressed by the calculation method; b) documentation of the calculation procedure and its scientific basis; c) limitations of the calculation method; d) input parameters for the calculation method; and e) domain of applicability of the calculation method. Examples of sets of algebraic formulae meeting the requirements of this document are provided in Annexes A and B. Annex A contains a set of algebraic formulae for radiation heat fluxes from a circular or near-circular open pool fire. Annex B contains formulae for configuration factors of a flame to a target.

Technical details

Technical committee: ISO/TC 92/SC 4 - Fire safety engineering
SKU: ISO 24678-7:2019

Abstract

Overview

ISO 24678-7:2019 - Fire safety engineering - Requirements governing algebraic formulae - Part 7: Radiation heat flux received from an open pool fire - defines the requirements for using explicit algebraic formulae to calculate radiation heat flux from an open pool fire. It implements the general verification/validation approach in ISO 16730‑1 and is delivered as a template that ensures formulae are documented, limited and applied consistently in fire dynamics and performance‑based fire safety engineering.

Key topics and technical requirements

Scope and phenomena: Focuses on radiation heat flux from pool fires (circular or near‑circular) and the physical parameters that control radiative flux (fuel properties, pool geometry, flame height, radiative fraction, atmospheric transmissivity).
Template requirements: Formula sets must provide:
- Clear description of the physical phenomena addressed
- Full documentation of calculation procedures and scientific basis
- Quantitative limitations and domain of applicability
- Defined input parameters, valid ranges and SI units
- Worked examples demonstrating use
Documentation & traceability: Each algebraic formula must be presented with variable definitions, assumptions, references to peer‑reviewed literature or handbooks, and examples of evaluation.
Geometry and configuration: Diagrams to describe pool geometry, target location, and any intervening screens are required. Annex B supplies configuration factor formulae (flame‑to‑target).
Examples and annexes: Annex A provides algebraic formulae for radiation from circular/near‑circular pool fires; Annex B covers configuration factors for a cylindrical flame to a target.

Practical applications

Rapid estimation of radiation heat flux to assess ignition risk, equipment damage, human injury thresholds, or structural exposure in design fire scenarios.
Screening and comparison of trial designs in performance‑based fire safety projects where quick, repeatable calculations are needed before detailed numerical modeling.
Supporting detector placement studies, protection shielding design, and emergency planning by quantifying target heat load from pool fires.
Useful for project stages where validated, documented algebraic models can guide design decisions or feed into larger fire dynamics calculations.

Who should use ISO 24678‑7:2019

Fire safety engineers and consultants performing performance‑based design
Regulatory authorities and reviewers assessing calculation methods
Researchers developing or validating simplified radiation models
Designers of industrial installations, ships, vehicles and buildings where pool‑type hydrocarbon fires are a credible hazard

Related standards

ISO 16730‑1 (verification and validation of calculation methods)
ISO 23932‑1 (performance‑based fire safety design process)
ISO 13943 (fire safety vocabulary)
ISO 16733‑1 and ISO 5725 (scenario selection; precision of test methods)

Keywords: ISO 24678-7:2019, fire safety engineering, radiation heat flux, open pool fire, algebraic formulae, pool fire radiation, configuration factors, radiative fraction.

Related standards

Standards mentioned in the description

Abstract

Overview

Key topics and technical requirements

Scope and phenomena: Focuses on radiation heat flux from pool fires (circular or near‑circular) and the physical parameters that control radiative flux (fuel properties, pool geometry, flame height, radiative fraction, atmospheric transmissivity).
Template requirements: Formula sets must provide:
- Clear description of the physical phenomena addressed
- Full documentation of calculation procedures and scientific basis
- Quantitative limitations and domain of applicability
- Defined input parameters, valid ranges and SI units
- Worked examples demonstrating use
Documentation & traceability: Each algebraic formula must be presented with variable definitions, assumptions, references to peer‑reviewed literature or handbooks, and examples of evaluation.
Geometry and configuration: Diagrams to describe pool geometry, target location, and any intervening screens are required. Annex B supplies configuration factor formulae (flame‑to‑target).
Examples and annexes: Annex A provides algebraic formulae for radiation from circular/near‑circular pool fires; Annex B covers configuration factors for a cylindrical flame to a target.

Practical applications

Rapid estimation of radiation heat flux to assess ignition risk, equipment damage, human injury thresholds, or structural exposure in design fire scenarios.
Screening and comparison of trial designs in performance‑based fire safety projects where quick, repeatable calculations are needed before detailed numerical modeling.
Supporting detector placement studies, protection shielding design, and emergency planning by quantifying target heat load from pool fires.
Useful for project stages where validated, documented algebraic models can guide design decisions or feed into larger fire dynamics calculations.

Who should use ISO 24678‑7:2019

Fire safety engineers and consultants performing performance‑based design
Regulatory authorities and reviewers assessing calculation methods
Researchers developing or validating simplified radiation models
Designers of industrial installations, ships, vehicles and buildings where pool‑type hydrocarbon fires are a credible hazard

Related standards

ISO 16730‑1 (verification and validation of calculation methods)
ISO 23932‑1 (performance‑based fire safety design process)
ISO 13943 (fire safety vocabulary)
ISO 16733‑1 and ISO 5725 (scenario selection; precision of test methods)

Keywords: ISO 24678-7:2019, fire safety engineering, radiation heat flux, open pool fire, algebraic formulae, pool fire radiation, configuration factors, radiative fraction.

ISO 24678-7:2019 PDF

Technical details

Abstract

Overview

Key topics and technical requirements

Practical applications

Who should use ISO 24678‑7:2019

Related standards

Related standards

Abstract

Overview

Key topics and technical requirements

Practical applications

Who should use ISO 24678‑7:2019

Related standards

Related standards

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