Coils (Cooling & Heating Coils) – The Heart of HVAC Heat Transfer

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Heating and cooling coils are among the most critical components in any HVAC system. Whether installed in air handling units (AHUs), fan coil units (FCUs), rooftop units, or industrial process systems, coils are responsible for the actual heat exchange that conditions the air we breathe. Charles Nehme's book, Coils (Cooling & Heating Coils), provides a practical guide to understanding, selecting, maintaining, and optimizing these essential HVAC components. The book explores heat transfer fundamentals, fin-and-tube coil design, face velocity considerations, maintenance practices, freeze protection strategies, coil fouling issues, and modern coil selection techniques. 

Why HVAC Coils Matter

Cooling and heating coils are often hidden within HVAC equipment, yet they directly influence:

  • Energy efficiency

  • Indoor air quality

  • Humidity control

  • Occupant comfort

  • Equipment reliability

  • Operating costs

Improperly selected or poorly maintained coils can lead to increased energy consumption, reduced capacity, airflow restrictions, corrosion, and premature system failure. Understanding coil performance is therefore essential for HVAC engineers, facility managers, contractors, and maintenance personnel. 

Topics Covered in the Book

This practical HVAC guide discusses:

  • Cooling coil fundamentals

  • Heating coil operation

  • Heat transfer principles

  • Chilled water and hot water coils

  • Direct expansion (DX) coils

  • Face velocity optimization

  • Coil sizing and selection

  • Coil fouling and cleaning

  • Freeze protection methods

  • Glycol coil applications

  • Maintenance best practices

  • Troubleshooting performance issues

  • Improving HVAC system efficiency

The book bridges theoretical engineering concepts with real-world field applications, helping professionals improve system performance and extend equipment life.

Who Should Read This Book?

This book is ideal for:

  • HVAC Engineers

  • Mechanical Engineers

  • Facility Managers

  • Maintenance Technicians

  • Commissioning Engineers

  • Building Owners

  • Energy Managers

  • Engineering Students

  • MEP Consultants

International HVAC Consulting Services

Charles Nehme provides international HVAC, MEP, energy efficiency, data center cooling, cleanroom, pharmaceutical, commercial, industrial, and building services consulting. With over 30 years of global experience, services include:

  • HVAC Design Reviews

  • Load Calculations

  • Energy Audits

  • Chiller Plant Optimization

  • Data Center Cooling Consulting

  • Retrofits and Refurbishments

  • Technical Due Diligence

  • MEP Project Management

  • Facility Management Support

  • Troubleshooting Complex HVAC Problems

  • Technical Writing and Training

Books and Consulting

Explore Charles Nehme's HVAC books, publications, and consulting services:

https://bit.ly/m/HVAC

For consulting inquiries:

cfnehme@gmail.com



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