Work

Global and Detailed Calculation of Tube Wall Temperature in a Process Furnace Steam Superheater

Year: 2026

Type: article

Abstract: ABSTRACT The increasing hydrogen concentration in industrial fuels poses new challenges for the thermal and mechanical integrity of combustion equipment. Higher hydrogen content modifies combustion characteristics and heat transfer performance, affecting component lifetime. This study presents a computational framework for predicting tube wall temperatures in a steam superheater of a process furnace combusting natural gas–hydrogen blends. An iterative global heat transfer model is compared with a detailed finite‐volume‐based non‐iterative method for cross‐flow tube bundles. The results show that a suitably formulated non‐iterative method achieves accuracy comparable to iterative approaches while maintaining low computational cost, making it suitable for quick parametric studies.

Source: Chemie Ingenieur Technik

DOI: 10.1002/cite.70097

Authors: Anežka Michálková, Zdeněk Jegla

Institution: Brno University of Technology

Language: English

Topic: Heat Transfer and Optimization

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $4,030