Dynamic Modeling And Capacity Control Of Multiple Chiller Systems
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Dynamic Modeling and Capacity Control of Multiple Chiller Systems
Multiple chiller systems are widely utilized for space cooling in industrial and commercial buildings. Good chiller control methods could offer benefits to users for more energy savings. Matching the anticipated cooling load and achieving higher coefficient of performance (COP) are the main objectives of multiple chiller capacity control strategies. With this as a main motivation, a dynamic model of compressor refrigeration chiller (CRC) and design of a closed loop PI controller for single CRC and multiple CRC systems are presented in this thesis. The dynamic model of vapor compressor refrigeration system includes thermostat expansion valve, evaporator, compressor, compressor motor, and condenser. The model equations were solved and open loop simulations were made to evaluate the time response characteristics of each component and whole chiller system under varying cooling load. A PI controller was designed and output responses of supply water temperatures, refrigerant mass flow rate and compressor motor rotor speed were studied.
Intelligent Building Control Systems
Readers of this book will be shown how, with the adoption of ubiquituous sensing, extensive data-gathering and forecasting, and building-embedded advanced actuation, intelligent building systems with the ability to respond to occupant preferences in a safe and energy-efficient manner are becoming a reality. The articles collected present a holistic perspective on the state of the art and current research directions in building automation, advanced sensing and control, including: model-based and model-free control design for temperature control; smart lighting systems; smart sensors and actuators (such as smart thermostats, lighting fixtures and HVAC equipment with embedded intelligence); and energy management, including consideration of grid connectivity and distributed intelligence. These articles are both educational for practitioners and graduate students interested in design and implementation, and foundational for researchers interested in understanding the state of the art and the challenges that must be overcome in realizing the potential benefits of smart building systems. This edited volume also includes case studies from implementation of these algorithms/sensing strategies in to-scale building systems. These demonstrate the benefits and pitfalls of using smart sensing and control for enhanced occupant comfort and energy efficiency.
IMDC-IST 2021
Author: Abd-Alhameed Raed
language: en
Publisher: European Alliance for Innovation
Release Date: 2022-01-26
This book contains the proceedings of the Second International Conference on Integrated Sciences and Technologies (IMDC-IST-2021). Where held on 7th–9th Sep 2021 in Sakarya, Turkey. This conference was organized by University of Bradford, UK and Southern Technical University, Iraq. The papers in this conference were collected in a proceedings book entitled: Proceedings of the second edition of the International Multi-Disciplinary Conference Theme: “Integrated Sciences and Technologies” (IMDC-IST-2021). The presentation of such a multi-discipline conference provides a lot of exciting insights and new understanding on recent issues in terms of Green Energy, Digital Health, Blended Learning, Big Data, Meta-material, Artificial-Intelligence powered applications, Cognitive Communications, Image Processing, Health Technologies, 5G Communications. Referring to the argument, this conference would serve as a valuable reference for future relevant research activities. The committee acknowledges that the success of this conference are closely intertwined by the contributions from various stakeholders. As being such, we would like to express our heartfelt appreciation to the keynote speakers, invited speakers, paper presenters, and participants for their enthusiastic support in joining the second edition of the International Multi-Disciplinary Conference Theme: “Integrated Sciences and Technologies” (IMDC-IST-2021). We are convinced that the contents of the study from various papers are not only encouraged productive discussion among presenters and participants but also motivate further research in the relevant subject. We appreciate for your enthusiasm to attend our conference and share your knowledge and experience. Your input was important in ensuring the success of our conference. Finally, we hope that this conference serves as a forum for learning in building togetherness and academic networks. Therefore, we expect to see you all at the next IMDC-IST.