Problem: 100 m straight pipe, carbon steel, operating temp 260°C, ambient 20°C.
Thermal expansion = 100 m × 0.0119 mm/m/°C × 240°C ≈ 286 mm (over 11 inches).
If straight and anchored at both ends:
Thermal stress = E × α × ΔT ≈ 200 GPa × 1.2e-5 × 240 ≈ 576 MPa – far above yield (~250 MPa).
Solution: Add an expansion loop. Rule of thumb – loop leg length (L) = √(D × ΔL / 2) for first estimate. Problem: 100 m straight pipe, carbon steel, operating
The lesson explains the fundamental physics that pipes expand when heated and contract when cooled. It details how different materials (e.g., Carbon Steel vs. Stainless Steel) expand at different rates and why this matters in design.
A primary focus of Fluor’s training is protecting sensitive equipment (pumps, compressors, turbines). The lesson likely covers: Primary & Secondary Stresses
By the end of this lesson, you should be able to:
Author: Engineering Training Group
Topic: Piping Flexibility, Primary & Secondary Stresses, and Layout Rules of Thumb Problem: 100 m straight pipe
The primary objective of Lesson 1: Pipe Stress is to provide an understanding of the principles and importance of pipe stress analysis in piping design. This includes recognizing the sources of stress in piping systems, understanding the consequences of excessive pipe stress, and learning methods for evaluating and mitigating pipe stress.
"Lesson 1: Pipe Stress" typically serves as an introduction to the mechanics of piping flexibility. The content generally covers the following key concepts:
