Cogeneration and trigeneration result in two and three outputs, respectively, from the energy source. Polygeneration is a method of multi-generation with four or more outputs with the aim of minimising energy loss and maximising energy conversion. This book is focused on the description, development, and analysis of polygeneration systems to generate electricity, fresh water, hot air, cold air, and hot water from a source of energy. The main highlights of this book are desalination with no pressure or vacuum components; combined use of refrigerator and heat pump with a vapour compression refrigeration (VCR) cycle; binary fluid polygeneration; compact units; and flexible operation. Four polygeneration configurations are studied, viz., binary fluid polygeneration with single stage HDH, binary fluid polygeneration with double stage HDH, heat pump polygeneration with single stage HDH, and heat pump polygeneration with double stage polygeneration. The VCR is analysed with a water-cooled condenser. Another option for polygeneration development is to use a binary fluid system instead of the VCR. The heat pump element with the water cooled heat exchanger to support the HDH cycle is analysed to develop the best operational conditions. This book also triggers many other combinations to result in an innovative layout of polygeneration. The HDH plant with single stage operation and double stage operation is simulated with the objective of maximum yield and maximum energy conversion for binary fluid polygeneration and heat pump polygeneration. The polygeneration cycle energy performance ratio (EPR) is crossing more than 100% with all the configurations. The operating conditions of the proposed polygeneration systems are optimised to achieve higher EPR. Contents : Foreword Preface Acknowledgements Nomenclature 1. Introduction 2. Power Generation 3. Binary Fluid Properties and Processes 4. Binary Fluid Power 5. Binary Fluid Cooling 6. Vapour Compression Refrigeration 7. Humidification-Dehumidification Desalination 8. Binary Fluid Polygeneration 9. Heat Pump Polygeneration 10. Polygeneration – A Comparative Study Appendix - A - Binary Fluid Properties – Ammonia-Water Mixture Appendix - B - Refrigerants and Psychrometric Properties References About the Author Dr. Tangellapalli Srinivas is an Associate Professor in the Department of Mechanical Engineering at the Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, Punjab, India. He previously worked as a professor at Vellore Institute of Technology's School of Mechanical Engineering, CO2 Research and Green Technologies Centre, Tamil Nadu. He is also associated with Gudlavalleru Engineering College in Andhra Pradesh. He received his PhD from JNT University College of Engineering, Hyderabad, Telangana in 2008 and was a postdoctoral fellow at the University of Ontario Institute of Technology (UOIT), Canada in 2010 and 2013. He is the principal investigator for research projects funded by CSIR, SERB, SERB (IMPRINT), and DST. He has industrial consultancy experience in the areas of solar thermal energy and thermal systems. He has two copyrights to his credit and has published six patents. He has authored 4 full books (titles: Thermal Polygeneration, Flexible Kalina Cycle Systems, Thermal Cycles of Heat Recovery Power Plants, and Desalination and Cooling Integration), 15 book chapters, 125 journal publications, and 90 conference proceedings. His current areas of research are solar thermal energy and poly-generation. He has supervised five Ph.D. students, 40 M. Tech theses, and 45 UG projects. He also has industrial experience of 3 years and 9 months in the machine tool industry in Hyderabad. He serves on the editorial boards of the journals Recent Innovations in Chemical Engineering and Applied Solar Energy (Springer). For teaching excellence, he received the best teacher award in 2021 at NIT Jalandhar.