⚙️ ASME PTC 6 / API 611 (Backpressure 600 to 50 PSIG, Isentropic Efficiency 70%-82%)

Backpressure Steam Turbine Calculator

Size industrial backpressure steam turbines (Elliott / Siemens) generating electrical power while providing low-pressure exhaust steam for chemical and paper mill processes under ASME PTC 6 & API 611: calculate theoretical steam rate (TSR Lbs/kWh), isentropic expansion efficiency ($70% ext{ to }82%$), generator electrical output (kW), and co-generation profits.

1. Project & Operating Inputs

Throttle Steam Flow Rate (Lbs / Hr e.g. 45,000 Lbs/Hr Steam)

Turbine Isentropic Efficiency (% e.g. 76.0% Isentropic Efficiency)

Customer Bid Price for Supplied & Landed Steam Turbine Skid ($)

Turbine Casing, 2.5 MW Synchronous Generator, Lube Skid & Controls ($)

2. Financial Breakdown & Yield

ASME PTC 6 STEAM TURBINES

Turnkey Steam Turbine Skid Profit

Co-Generation Mechanical Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost