Hvac Cooling Load Calculations And Principles
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Hvac Cooling Load Calculations And Principles
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Author : A. Bhatia
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2014-10-16
Hvac Cooling Load Calculations And Principles written by A. Bhatia and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-16 with Air conditioning categories.
Heating and cooling load calculations are carried out to estimate the required capacity of heating and cooling systems, which can maintain the required conditions in the conditioned space. To estimate the required cooling or heating capacities, one has to have information regarding the design indoor and outdoor conditions, specifications of the building, specifications of the conditioned space (such as the occupancy, activity level, various appliances and equipment used etc.) and any special requirements of the particular application. For comfort applications, the required indoor conditions are fixed by the criterion of thermal comfort, while for industrial or commercial applications the required indoor conditions are fixed by the particular processes being performed or the products being stored. Generally, heating and cooling load calculations involve a systematic and stepwise procedure, which account for all the building energy flows. In practice, a variety of methods ranging from simple rules-of-thumb to complex transfer function methods are used to arrive at the building loads. This short quick book provides a procedure for preparing a manual calculation for cooling load using CLTD/CLF method suggested by ASHRAE and includes two detailed examples. For more advanced methods such as TFM, the reader should refer to ASHRAE and other handbooks.Learning ObjectiveAt the end of this course, the student should be able to: 1. Understand the basic terminology and definitions related to air conditioning load calculations 2. Explain the differences between heating and cooling load design considerations3. Explain the difference between 1) space heat gain v/s cooling load 2) space cooling v/s cooling load and 3) external loads v/s internal loads4. Differentiate between sensible and latent loads5. List commonly used methods for estimating cooling loads 6. Estimate the internal and external cooling loads using CLTD/CLF method from building specifications, design indoor and outdoor conditions, occupancy etc. 7. Describe various equations and the information sources to determine conductive load through opaque building elements.8. Describe various equations and information sources to determine the solar transmission load through glazing.9. Describe various equations and information sources to determine the internal load due to people, lights and power appliances.10. Determine the supply air flow rate11. Learn by examples the detailed methodology to cooling load calculations12. Learn the functional parameters of software programs such as TRACE 700 and CHVAC
Hvac Heating Load Calculations And Principles
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Author : A. Bhatia
language : en
Publisher: CreateSpace
Release Date : 2014-11-01
Hvac Heating Load Calculations And Principles written by A. Bhatia and has been published by CreateSpace this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-11-01 with categories.
The prime requirement in respect of the indoor climate in a building is that room temperature should be at a comfortable level, regardless of the weather conditions outside. As soon as the ambient temperature is lower than the indoor temperature, heat flows out from the building through its boundary surfaces (the building envelope). At the same time, the building also loses heat through air infiltration, i.e. the inward leakage of outdoor air into the building through gaps and cavities in walls, roofs, doors and windows. Bearing in mind the fact that the indoor temperature in most buildings is maintained at a little over 65°F, this means, throughout most of the year, the building is losing heat to its surroundings.This 5-hour course, discusses the stepwise procedure to determine the rate of heat loss through building elements using a process called heat loss calculation. You will learn how to extrapolate your calculation of a maximum hourly rate into an annual energy usage rate. You will also learn some useful tips on saving heating energy. The course includes one sample example for better understanding of the concept.Learning ObjectiveAt the end of this course, the reader will: 1. Describe the factors affecting comfort in winter2. Describe the overall heat transfer coefficient (U-value) and its relationship to resistance (R-value) 3. Understand the basic equation of heat loss through building elements such as walls, roof and glass4. Understand the basic equation of heat loss through floor slab and basement5. Understand the basic equation of heat loss through ventilation and infiltration6. Understand the concept of degree days and how it is used to estimate the annual heat loss7. Understand the three basic modes of heat transfer, conduction, convection and radiation8. Understand the difference between the k-values, C-values, R-values and U-values 9. Learn by examples to calculate the series resistance and U-values of a composite wall 10. Learn how to determine the infiltration and ventilation air flow rate 11. Understand by an example the detailed methodology to heat loss calculations12. Understand the basic terminology and definitions related to air conditioning load calculations
Load Calculation Applications Manual I P Edition
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Author : Jeffrey D. Spitler
language : en
Publisher: Ashrae
Release Date : 2014-10-01
Load Calculation Applications Manual I P Edition written by Jeffrey D. Spitler and has been published by Ashrae this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-01 with Air conditioning categories.
"This manual focuses on the calculation of cooling and heating loads for commercial buildings. The heat balance method (HBM) and radiant time series method (RTSM) (as well as how to implement these methods) are discussed. Heat transfer processes and their analysis, psychrometrics, and heating load calculations are also considered"--
1997 Ashrae Handbook
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Author : American Society of Heating, Refrigerating and Air-Conditioning Engineers
language : en
Publisher: American Society of Heating Refrigerating and Air-Conditioning Engineers
Release Date : 1997
1997 Ashrae Handbook written by American Society of Heating, Refrigerating and Air-Conditioning Engineers and has been published by American Society of Heating Refrigerating and Air-Conditioning Engineers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Air conditioning categories.
The industry's most comprehensive source of HVAC and refrigeration information for more than 60 years. Every chapter undergoes a rigorous four-year review process that examines the content and precludes product or system bias.
Principles Of Heating Ventilation And Air Conditioning In Buildings
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Author : John W. Mitchell
language : en
Publisher: John Wiley & Sons
Release Date : 2012-03-06
Principles Of Heating Ventilation And Air Conditioning In Buildings written by John W. Mitchell and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-03-06 with Science categories.
Principles of HVAC in Buildings by J. W. Mitchell and J. E. Braun provides foundational knowledge for the behavior and analysis of HVAC systems and related devices. The emphasis is on the application of engineering principles, and features a tight integration of physical descriptions with a software program that allows performance to be directly calculated, with results that provide insight into actual behavior. The examples, end-of-chapter problems, and design projects are more than exercises; they represent situations that an engineer might face in practice and are selected to illustrate the complex and integrated nature of an HVAC system or piece of equipment. Coverage of material applicable to the field is broad: a Fundamentals section on thermodynamics, fluid flow, heat transfer, and psychrometrics; types of HVAC systems and components; comfort and air quality criteria; a Loads section on weather data processing; design heating and cooling loads; an Equipment section on air and water distribution systems, heating and cooling coils, cooling towers, refrigeration equipment, and a Design and Control section on seasonal energy use, control techniques, supervisory control, the HVAC design process, and the rules of thumb often used in design. The textbook provides a foundation for students and practicing engineers to design HVAC systems for buildings. In addition, there is extensive supplemental on-line material that provides more in-depth and comprehensive treatment of equipment and component modeling and performance that is geared towards current and future equipment design engineers.
Handbook Of Air Conditioning And Refrigeration
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Author : Shan K. Wang
language : en
Publisher: McGraw Hill Professional
Release Date : 2000-11-07
Handbook Of Air Conditioning And Refrigeration written by Shan K. Wang and has been published by McGraw Hill Professional this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-11-07 with Technology & Engineering categories.
* A broad range of disciplines--energy conservation and air quality issues, construction and design, and the manufacture of temperature-sensitive products and materials--is covered in this comprehensive handbook * Provide essential, up-to-date HVAC data, codes, standards, and guidelines, all conveniently located in one volume * A definitive reference source on the design, selection and operation of A/C and refrigeration systems
Heating And Cooling Of Buildings
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Author : Jan F. Kreider
language : en
Publisher: CRC Press
Release Date : 2009-12-28
Heating And Cooling Of Buildings written by Jan F. Kreider and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-12-28 with Science categories.
The art and the science of building systems design evolve continuously as designers, practitioners, and researchers all endeavor to improve the performance of buildings and the comfort and productivity of their occupants. Retaining coverage from the original second edition while updating the information in electronic form, Heating and Cooling of Buildings: Design for Efficiency, Revised Second Edition presents the technical basis for designing the lighting and mechanical systems of buildings. Along with numerous homework problems, the revised second edition offers a full chapter on economic analysis and optimization, new heating and cooling load procedures and databases, and simplified procedures for ground coupled heat transfer calculations. The accompanying CD-ROM contains an updated version of the Heating and Cooling of Buildings (HCB) software program as well as electronic appendices that include over 1,000 tables in HTML format that can be searched by major categories, a table list, or an index of topics. Ancillary information is available on the book’s website www.hcbcentral.com From materials to computers, this edition explores the latest technologies exerting a profound effect on the design and operation of buildings. Emphasizing design optimization and critical thinking, the book continues to be the ultimate resource for understanding energy use in buildings.
Load Calculation Applications Manual
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Author : Jeffrey D. Spitler
language : en
Publisher: Amer Society of Heating
Release Date : 2010-01-01
Load Calculation Applications Manual written by Jeffrey D. Spitler and has been published by Amer Society of Heating this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-01-01 with Technology & Engineering categories.
"Focuses on the radiant time series and heat balance methods for calculating cooling loads in nonresidential buildings. The intended audience is relatively new engineers who are learning to do load calculations, as well as experienced engineers who wish to learn the radiant time series method"--Provided by publisher.
Heating Ventilating And Air Conditioning
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Author : Faye C. McQuiston
language : en
Publisher: John Wiley & Sons
Release Date : 2004-08-06
Heating Ventilating And Air Conditioning written by Faye C. McQuiston and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-08-06 with Technology & Engineering categories.
HEATING, VENTILATING, AND AIR CONDITIONING Completely revised with the latest HVAC design practices! Based on the most recent standards from ASHRAE, this Sixth Edition provides complete and up-to-date coverage of all aspects of heating, ventilation, and air conditioning. You’ll find the latest load calculation procedures, indoor air quality procedures, and issues related to ozone depletion. Throughout the text, numerous worked examples clearly show you how to apply the concepts in realistic scenarios. In addition, several computer programs (several new to this edition) help you understand key concepts and allow you to simulate various scenarios, such as psychometrics and air quality, load calculations, piping system design, duct system design, and cooling coil simulation. Additionally, the load calculation program has been revised and updated. These computer programs are available at the book’s website: www.wiley.com/college/mcquiston Key Features of the Sixth Edition Additional new worked examples in the text and on the accompanying software. Chapters 6-9 have been extensively revised for clarity and ease of use. Chapter 8, The Cooling Load, now includes two approaches: the heat balance method, as recommended by ASHRAE, and the simpler RTS method. Both approaches include computer applications to aid in calculations. Provides complete, authoritative treatment of all aspects of HVAC, based on current ASHRAE standards. Numerous worked examples and homework problems provide realistic scenarios to apply concepts.
Principles Of Heating Ventilation And Air Conditioning With Worked Examples
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Author : Nihal E Wijeysundera
language : en
Publisher: World Scientific
Release Date : 2015-11-25
Principles Of Heating Ventilation And Air Conditioning With Worked Examples written by Nihal E Wijeysundera and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-25 with Technology & Engineering categories.
This book presents the most current design procedures in heating, ventilation and air conditioning (HVAC), available in handbooks, like the ASHRAE (American Society of Heating, Refrigeration and Air Conditioning Engineers) Handbook-2013 Fundamentals, in a way that is easier for students to understand. Every effort is made to explain in detail the fundamental physical principles that form the basis of the various design procedures.A novel feature of the book is the inclusion of about 15 worked examples in each chapter, carefully chosen to highlight the diverse aspects of HVAC design. The solutions for the worked examples clarify the physical principles behind the design method. In addition, there are problems at the end of each chapter for which numerical answers are provided. The book includes a series of MATLAB programs that may be used to solve realistic HVAC design problems, which in general, require extensive and repetitive calculations. remove Supplementary materials are available upon request for all instructors who adopt this book as a course text. Please send your request to [email protected].