HVAC Water Chillers and Cooling Towers provides fundamental principles and practical techniques for the design, application, purchase, operation, and maintenance of water chillers and cooling towers. Written by a leading expert in the field, the book analyzes topics such as piping, water treatment, noise control, electrical service, and energy effi
HVAC Water Chillers and Cooling Towers provides fundamental principles and practical techniques for the design, application, purchase, operation, and maintenance of water chillers and cooling towers. Written by a leading expert in the field, the book analyzes topics such as piping, water treatment, noise control, electrical service, and energy efficiency for optimal system and equipment performance and offers extensive checklists, troubleshooting strategies, and reference data, as well as recommended specifications for the procurement of new or replacement equipment. This reference also discusses proper installation and placement of chillers and cooling towers, start-up, and capacity.
Cooling Towers: Principles and Practice, Third Edition, aims to provide the reader with a better understanding of the theory and practice, so that installations are correctly designed and operated. As with all branches of engineering, new technology calls for a level of technical knowledge which becomes progressively higher; this new edition seeks to ensure that the principles and practice of cooling towers are set against a background of up-to-date technology. The book is organized into three sections. Section A on cooling tower practice covers topics such as the design and operation of cooling towers; types of cooling tower; cooling tower components and construction materials; practical aspects of tower selection; industrial applications; and water quality and treatment. Section B is devoted to cooling tower theory and calculations. These include psychrometry; heat transfer theory and calculations; calculations when selecting tower size for a given duty; and the use of charts for calculation of cooling tower duties. Section C on data and tables explains the basis of the SI system of units and includes meteorological tables and data as well as data on specific heat capacity of some common substances.
HVAC Water Chillers and Cooling Towers: Fundamentals, Application, and Operation, Second Edition explores the major improvements in recent years to many chiller and cooling tower components that have resulted in improved performance and lower operating costs. This new edition looks at how climate change and "green" designs have significantly impact
In large commercial and industrial systems, chilled water system serves as means to transfer heat from building spaces to the refrigeration system. Initially, when energy costs were low, constant volume and primary-secondary systems provided a stable and simple operation of the chillers and distribution systems. However, as energy costs increased, particularly in the late 1970s, the efficiency of the chillers and the costs associated with operating the distribution system became more important. As a result, the need for new schemes to improve chiller performance and reduce energy costs drove the HVAC industry to advance chilled water technology, particularly in the manner that chilled water is delivered. To understand the hydraulic considerations associated with delivering chilled water and how they influence system performance, it is important to understand how technology and design challenges over the years have influenced today's approach to chilled water pumping. This 5 - hour Quick Book discusses the history of chilled water distribution systems and the development of “variable primary flow system”. Problems such as low delta-T syndrome associated with the chilled water pumping schemes are defined and discussed and finally, this course compares the advantages and disadvantages of primary-secondary and direct-primary pumping schemes. Three chilled water schemes are discussed:SCHEME -1: CONSTANT FLOW CHILLED WATER SYSTEM SCHEME -2: PRIMARY / SECONDAY DISTRIBUTION SCHEMESCHEME -3: VARIABLE PRIMARY FLOW SCHEMEThe course includes a multiple-choice quiz consisting of twenty five (25) questions at the end to enhance course learning. Learning ObjectiveAt the conclusion of this course, the student will able to understand:1. The basic hydronic principles i.e. relationship of chilled water flow rate v/s cooling load and the energy savings due to adjustable speed pumps. 2. How do constant volume chilled water systems different from primary/secondary arrangement?3. What is low delta-T syndrome and how it affects the chiller loading?4. What are the causes and mitigation measures to prevent low delta-T syndrome?5. Why distributed pumping arrangement is better than headered arrangement for constant flow systems?6. How do primary/secondary chilled water systems create hydraulically independent loops?7. How to size the de-coupler bridge?8. The characteristics of control valves and why 2-way valve is better than 3-way valve in variable flow systems?9. How do the variable primary flow system compare with primary/secondary system in terms of cost and energy?10. The importance of design tube velocity and rate of chilled water flow variations in variable primary flow systems.
Refrigeration, Air Conditioning and Heat Pumps, Fifth Edition, provides a comprehensive introduction to the principles and practice of refrigeration. Clear and comprehensive, it is suitable for both trainee and professional HVAC engineers, with a straightforward approach that also helps inexperienced readers gain a comprehensive introduction to the fundamentals of the technology. With its concise style and broad scope, the book covers most of the equipment and applications professionals will encounter. The simplicity of the descriptions helps users understand, specify, commission, use, and maintain these systems. It is a must-have text for anyone who needs thorough, foundational information on refrigeration and air conditioning, but without textbook pedagogy. It includes detailed technicalities or product-specific information. New material to this edition includes the latest developments in refrigerants and lubricants, together with updated information on compressors, heat exchangers, liquid chillers, electronic expansion valves, controls, and cold storage. In addition, efficiency, environmental impact, split systems, retail refrigeration (supermarket systems and cold rooms), industrial systems, fans, air infiltration, and noise are also included. - Full theoretical and practical treatment of current issues and trends in refrigeration and air conditioning technology - Meets the needs of industry practitioners and system designers who need a rigorous, but accessible reference to the latest developments in refrigeration and AC that is supported by coverage at a level not found in typical course textbooks - New edition features updated content on refrigerants, microchannel technology, noise, condensers, data centers, and electronic control
Introductory technical guidance for mechanical engineers and others interested in water treatment for cooling towers. This is what is discussed: 1. TYPES OF COOLING WATER SYSTEMS 2. COOLING TOWER WATER CALCULATIONS 3. OBJECTIVES OF COOLING WATER TREATMENT 4. MICROBIOLOGICAL DEPOSITS AND CONTROL 5. CORROSION IN COOLING SYSTEMS 6. DEVELOPING AN EFFECTIVE COOLING WATER TREATMENT PROGRAM 7. COOLING WATER SYSTEM START-UP AND LAYUP REQUIREMENTS.
DISTRICT COOLING: THEORY and PRACTICE provides a unique study of an energy cogeneration system, set up to bring chilled water to buildings (offices, apartment houses, and factories) needing cooling for air conditioning and refrigeration. In winter, the source for the cooling can often be sea water, so it is a cheaper resource than using electricity to run compressors for cooling. The related technology of District Heating has been an established engineering practice for many years, but District Cooling is a relatively new technology now being implemented in various parts of the world, including the USA, Arab Emirates and Kuwait, and Saudi Arabia. Existing books in the area are scarce, and do not address many of the crucial issues facing nations with high overall air temperatures, many of which are developing District Cooling plans using sea water. DISTRICT COOLING: THEORY & PRACTICE integrates the theory behind district cooling planning with the practical engineering approaches, so it can serve the policy makers, engineers, and planners whose efforts have to be coordinated and closely managed to make such systems effective and affordable. In times of rising worldwide temperatures, District Cooling is a way to provide needed cooling with energy conservation and sustainability. This book will be the most up-to-date and comprehensive study on the subject, with Case Studies describing real projects in detail.
The ultimate reference book on the most frequently used HVAC data, chock-full of equations, data, and rules of thumb--a necessary addition to any library for mechanical, architectural, and electrical engineers, HVAC contractors and technicians, and others. Features over 216 equations for everything from air change rates to swimming pools to steel pipes. Includes both ASME and ASHRAE code information, and follows the CSI MasterFormat "TM."
Air source heat pumps are mainly used for space heating, and have the advantages of environmental protection, energy saving, and comfort. Written by leading heat pump technology expert Hui Huang, this book summarizes the research and applications of variable volume ratio two-stage vapor compression air source heat pump technology, and its use in cold climate regions. This book can be used for reference by scientific researchers and engineers engaged in research on air source heat pump technology, product development and popularization; and by energy management and policy researchers. It will also be of value to undergraduate and graduate students studying these areas of technology.
