At SPL, we take pride in supporting the engineering needs of leading oil and gas players across Malaysia. One of our engagements involved a comprehensive pipe stress analysis for a steam desuperheater system, a crucial component in regulating steam temperatures within process facilities. The project was carried out for a multinational oil and gas company, with a focus on ensuring the mechanical integrity of the piping system under various operating conditions.

Project Requirement

Our scope involved evaluating the structural responses and stress behaviour of a piping system connected to the steam desuperheater package. The assessment was conducted in accordance with the ASME B31.3 Piping Code, taking into account key loads such as pressure, temperature, weight, and displacement.

Using a specialised engineering tool designed for piping systems, we simulated real-world operating conditions to observe the system’s response and identify critical stress points. This analysis allowed us to verify code compliance and provide actionable recommendations to improve the system’s performance. A complete stress report was also prepared as part of the deliverables to support the client’s internal and regulatory requirements.

Key Benefits of the Project

i. Stress Identification and Control

The simulation revealed regions where overstress could occur, especially due to thermal expansion and load concentration. These areas were reviewed in both graphical and tabular formats, providing a clear picture for design validation.

ii. Optimisation of Support System

Based on the analysis, appropriate pipe supports were identified and positioned to manage displacements and control stress transfer across the system, enhancing long-term structural integrity.

iii. Connection Integrity and Safety

Flange connections were evaluated to prevent potential leakage, especially in areas exposed to pressure cycling and temperature fluctuations.

iv. Risk Mitigation and Reliability

The results allowed us to anticipate issues such as vibration and misalignment, enabling proactive design improvements and reducing the likelihood of operational disruptions.

Conclusion

This project highlighted the importance of pipe stress analysis in supporting the safety and reliability of steam service systems in industrial environments. Through detailed evaluation and the use of reliable engineering software such as CAESAR II, our team was able to deliver insights that contributed to a safer and more efficient piping layout. The experience reaffirmed our commitment to high engineering standards and effective problem-solving within the oil and gas industry.