🛡️ Tube Sheet Stress (Differential Thermal Expansion, Floating Header Tube Sheets)

Rotary Steam Tube Dryer Tube Sheet Stress Calculator

Model axial differential thermal expansion ($Delta L = alpha cdot L cdot Delta T$) between hot steam tubes ($180^circ ext{C}$) and cooler outer drum shells ($80^circ ext{C}$): engineer floating-end tube sheets and expansion bellows eliminating thermal stress fatigue cracking on welded tube joints, and structural reliability yields.

1. Project & Operating Inputs

Total Steam Tube Length (Feet e.g. 60.0 Foot Drum Shell Length)

Steam Operating Temp (°C e.g. 185.0°C Saturated Steam @ 150 PSIG)

Customer Bid Price for Supplied Floating Header Rebuild ($)

Forged Tubesheets, Inconel Expansion Joints, Certified ASME R-Stamp Labor ($)

2. Financial Breakdown & Yield

FLOATING TUBE SHEET HEADERS

Turnkey Floating Tube Sheet Overhaul Profit

Heavy ASME Boiler & Pressure Vessel Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost