Use the offered OEM’s current heated-fuel specification for fuel composition and temperature; GE GER-4189B gives historical context only
Use the offered OEM fuel enveloperecommendation
| Value kind | recommendation — Recommendations are design guidance, not measured facts; validate them against the project boundary conditions. |
|---|---|
| Scope | Historical GE technical-reference context, not a universal tolerance or current guarantee for every turbine/engine. Use the offered combustion system’s current fuel specification. |
| As of | 2026 |
| Source | GE, GER-4189B, Design Considerations for Heated Gas Fuel (historical technical reference); its former PDF URL redirects to GE Vernova’s resource catalog. · Modified Wobbe Index discussion and definition; verify turbine-specific permitted range against the current OEM fuel specification. |
| Review | checking…review by 2026-09-19 · standard cadence |
| Recorded changes | last 2026-07-14 · 2 revisions tracked |
| Claim id | modified-wobbe-index-band-for-gas-turbine-fuel |
Where the guide uses it
Not quoted in a chapter yet; it is kept in the curated register.
← Full numbers register — every date-stamped figure in the guide, with revision history.