📊 EPA 40 CFR 63 Subpart CC (Combustion Zone Net Heating Value NHVcz >= 270 BTU/scf)

Flare Net Heating Value (NHVcz) Calculator

Model real-time continuous combustion zone net heating value (NHVcz) compliance for refinery flares under EPA 40 CFR 63 Subpart CC & EPA Flare Rule: calculate supplementary natural gas assist flow required to maintain NHVcz >= 270 BTU/scf during low-BTU relief events, optimize automated steam-to-vent gas ratio (S/VG), and compliance savings.

1. Project & Operating Inputs

Unassisted Vent Gas Flow (SCFM e.g. 150 SCFM Low-BTU Purge/Relief)

Vent Gas Raw Heating Value (BTU / SCF e.g. 180 BTU/SCF Sub-Standard Gas)

Annual Potential EPA Flare Violation Penalty Avoided ($ / Yr)

Turnkey Extractive Gas Chromatograph (GC), Automated Flare PLC ($)

2. Financial Breakdown & Yield

EPA SUBPART CC NHVCZ

Annual Flare Assist Gas Optimization Profit

Refinery Environmental Compliance Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost