# Relief System Designer

> Pressure relief system design skill for PSV sizing, flare header analysis, and overpressure protection

- Skill: `a5c-ai/relief-system-designer` (Agent Skill)
- Install (CLI): `npx skillmds@latest add a5c-ai/relief-system-designer`
- Raw SKILL.md: https://api.skillmd.com/api/skills/a5c-ai/relief-system-designer/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: a5c-ai (https://skillmd.com/u/a5c-ai)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/a5c-ai/relief-system-designer

---


# Relief System Designer Skill

## Purpose

The Relief System Designer Skill designs pressure relief systems including PSV sizing, relief load calculations, and disposal system design per API standards.

## Capabilities

- Relief scenario identification
- Relief load calculations
- PSV sizing (API 520/521)
- Flare header hydraulics
- Blowdown system design
- Two-phase relief calculations
- Reactive systems relief
- Relief device selection

## Usage Guidelines

### When to Use
- Designing pressure relief systems
- Sizing relief devices
- Analyzing flare headers
- Evaluating relief scenarios

### Prerequisites
- Process conditions defined
- Relief scenarios identified
- Physical properties available
- Design codes specified

### Best Practices
- Consider all credible scenarios
- Use appropriate methods for two-phase
- Account for backpressure
- Document all assumptions

## Process Integration

This skill integrates with:
- Pressure Relief System Design
- Safety Instrumented System Design
- HAZOP Study Facilitation

## Configuration

```yaml
relief-system-designer:
  design-codes:
    - API-520
    - API-521
    - API-526
  relief-scenarios:
    - fire
    - blocked-outlet
    - control-valve-failure
    - runaway-reaction
```

## Output Artifacts

- Relief calculations
- PSV datasheets
- Flare load summaries
- Header sizing calculations
- Disposal system design