neqsim-jet-fire-radiation-screening

Estimates jet-fire radiative flux and distance to thermal limits using a point-source flame model.

4|2|Updated May 31, 2026
One-click install
npx skills add https://github.com/equinor/neqsim-community-skills --skill neqsim-jet-fire-radiation-screening-equinor
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: neqsim-jet-fire-radiation-screening
Source: https://github.com/equinor/neqsim-community-skills/tree/main/skills/safety/jet-fire-radiation-screening
Command: npx skills add https://github.com/equinor/neqsim-community-skills --skill neqsim-jet-fire-radiation-screening-equinor

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve? Safety engineers and students need a quick, public screening estimate of jet-fire thermal radiation before committing to detailed fire-consequence analysis. This Skill computes the radiative heat flux at a given distance, or the distance to a target flux, from an ignited gas release using the open single-point-source flame model. ## Core Features & Use Cases - Flux at Distance: Computes radiation flux in kW/m2 at a specified distance from the release using q = tau * Xr * mdot * Hc / (4 pi r^2). - Distance to Target Flux: Inverts the model to find the distance to personnel (4.7 kW/m2), equipment (12.5 kW/m2), or severe (37.5 kW/m2) thermal limits. - Hazard Triage: Returns a warning level (ok, watch, high, severe) and redirects detailed analysis to validated NeqSim classes like JetFireModel, PoolFireModel, and BLEVECalculator. - Use Case: Given a 10 kg/s gas release, determine how far personnel must stand to stay below the 12.5 kW/m2 equipment limit before running a full fire-consequence study. ## Quick Start Ask the agent to estimate the jet-fire radiation flux at 40 meters from a 10 kg/s gas release and the distance to the 12.5 kW/m2 equipment limit.

Frequently Asked Questions about neqsim-jet-fire-radiation-screening

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate jet fire radiation flux at a distance in Python?

Use the JetFireRadiationModel evaluate method with release_rate and distance parameters. It applies the point-source formula q = tau * Xr * mdot * Hc / (4 pi r^2) and returns the flux in kW/m2 along with a warning level.

How to find safe distance from a jet fire thermal radiation limit?

Pass a target_flux value in kW/m2 to the evaluate method instead of a distance. The model inverts the point-source relation to return the distance where radiation drops to that target, such as the 4.7 kW/m2 personnel limit.

What thermal radiation limits apply to personnel and equipment?

The model uses public screening thresholds of 4.7 kW/m2 for personnel, 12.5 kW/m2 for equipment, and 37.5 kW/m2 as a severe limit. Flux results are classified as ok, watch, high, or severe against these values.

When should I use NeqSim JetFireModel instead of point-source screening?

Use validated NeqSim fire classes like JetFireModel, PoolFireModel, or BLEVECalculator for real fire-consequence analysis. The point-source model over-predicts flux near the flame and ignores flame shape, view factor, and wind tilt.

What are the limitations of point-source flame radiation models?

Point-source models assume isotropic emission with no flame length, shape, view factor, wind tilt, or partial combustion. They are suitable only for educational screening and over-predict radiation close to the flame.