1st Edition

Absorber Types in Vapour Absorption Refrigeration Systems

By A. Mani, Narasimha Reddy Sanikommu Copyright 2025
    106 Pages 36 B/W Illustrations
    by CRC Press

    This book addresses the increasing energy demand and costs associated with the global refrigeration industry, primarily driven by the need for cooling. It proposes the substitution of vapour compression refrigeration systems (VCRS) with vapour absorption refrigeration systems (VARS), which operate on low-grade, renewable energy sources like solar, geothermal, and waste heat.

    Focusing on the absorber component of VARS, which plays a critical role in facilitating heat and mass transfer processes, the book provides a comprehensive overview of absorber configurations, including tray, packed bed, falling film, spray, bubble, and membrane absorbers. It offers guidance on selecting the appropriate absorber configuration considering their advantages and limitations in different operating conditions, as well as their numerical, experimental, and performance enhancement studies.

    The book will interest heating, ventilation, and air conditioning (HVAC) academic researchers, graduate students, and professionals involved in the advancement of sustainable refrigeration technologies, particularly absorber selection.

    1. Introduction.  2. Working Fluids Used in VARS.  3. Absorber Configurations.  4. Falling Film Absorber.  5. Bubble Absorber.  6. Comparison of Absorber Configurations.  


    A. Mani is a professor in the Refrigeration and Air-Conditioning Laboratory in the Department of Mechanical Engineering at the Indian Institute of Technology Madras. He obtained his PhD from IIT Madras in 1986. He has undertaken more than 30 sponsored projects and consulting assignments from government organizations and private Ltd. companies. He has been the principal investigator for a number of projects sponsored by various agencies in India and abroad. He has been invited to many academic institutes around the globe for keynote and invited lectures. Professor Mani has published more than 218 research articles in reputed international journals and conferences. He is a reviewer for several international journals. He is a fellow of the Institution of Engineers (India). He is a life member of the Indian Society of Heating, Refrigeration and Air Conditioning Engineers (ISHRAE), Solar Energy Society of India, Indian Desalination Association (InDA), and Indian Society for Heat and Mass Transfer (ISHMT). He is a member of the editorial board of the International Journal of Energy and Environment.

    Narasimha Reddy Sanikommu is a doctoral research scholar from the Refrigeration and Air Conditioning Laboratory, Department of Mechanical Engineering at the Indian Institute of Technology Madras. His research areas are Vapour Absorption Refrigeration Systems, HVAC, solar energy applications, experimental techniques, and multiphase flow simulations. He has presented his research at national and international conferences and published research articles in reputable international journals.