Corrosion and Material Degradation in Industrial Air Handling Units

Air Handling Units (AHUs) are often designed with a primary focus on thermal performance, airflow efficiency, and energy consumption. However, in many industrial environments, a far more aggressive and less predictable force governs their long-term reliability: corrosion and material degradation.Across chemical plants, coastal installations, refineries, pharmaceutical facilities, and wastewater treatment sites, AHUs operate in atmospheres that contain chlorides, sulfur compounds, acidic vapors, and reactive airborne contaminants. These elements do not simply reduce efficiency-they progressively attack metals, coatings, seals, coils, fasteners, and structural frames until failure becomes inevitable.This book was written to address a gap that is still common in HVAC engineering practice: corrosion is often treated as a secondary maintenance issue rather than a primary design parameter. In reality, corrosion is a system-level design challenge that directly affects lifecycle cost, safety, hygiene, uptime, and energy performance.The objective of this work is to provide engineers, designers, facility managers, and contractors with a practical and technically grounded understanding of how corrosion develops in industrial AHUs-and more importantly, how it can be prevented, controlled, or slowed through intelligent design and material selection.Rather than focusing only on theory, this book combines engineering fundamentals with real-world industrial behavior. It examines failure mechanisms, environmental exposure types, material performance, protective strategies, and case-based observations drawn from harsh operating environments.Ultimately, the goal is simple: to help HVAC professionals move from reactive maintenance thinking to proactive corrosion-resilient design thinking.

Pagina's: 173, Paperback, Independently published