Engineering Principles, Modeling and Economics of Evaporative Coolers PDF Download
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Author: Daniel Ingo Hefft
Publisher: Academic Press
ISBN: 0323886272
Category : Technology & Engineering
Languages : en
Pages : 340
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Book Description
Engineering Principles, Modelling and Economics of Evaporative Coolers covers the basic engineering and technical principles behind the operation and construction of evaporative coolers, also highlighting challenges. The book presents the reader with selected case studies on modelling in the cooling chamber and explains the economic implications an evaporative structure can bring. Edited by a team of specialists, the book also explains the strong dependence of the technology’s performance on environmental conditions, and hence the limits on temperature control in the preservation of post-harvest agriculture products. Evaporative coolers are an ancient technology, invented long before the introduction of chemical refrigerants as used in modern fridges or cooling towers. This two volume set covers the topic, with practical applications, construction techniques, and operation of the technology. Thoroughly explores unit operations and engineering principles of evaporative coolers Includes CFD modelling on evaporative cooling structures Covers the economics of evaporative coolers
Author: Daniel Ingo Hefft
Publisher: Academic Press
ISBN: 0323886272
Category : Technology & Engineering
Languages : en
Pages : 340
Get Book Here
Book Description
Engineering Principles, Modelling and Economics of Evaporative Coolers covers the basic engineering and technical principles behind the operation and construction of evaporative coolers, also highlighting challenges. The book presents the reader with selected case studies on modelling in the cooling chamber and explains the economic implications an evaporative structure can bring. Edited by a team of specialists, the book also explains the strong dependence of the technology’s performance on environmental conditions, and hence the limits on temperature control in the preservation of post-harvest agriculture products. Evaporative coolers are an ancient technology, invented long before the introduction of chemical refrigerants as used in modern fridges or cooling towers. This two volume set covers the topic, with practical applications, construction techniques, and operation of the technology. Thoroughly explores unit operations and engineering principles of evaporative coolers Includes CFD modelling on evaporative cooling structures Covers the economics of evaporative coolers
Author: Jie Lin
Publisher: Springer Nature
ISBN: 3031307585
Category : Science
Languages : en
Pages : 126
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Book Description
This book systematically discusses state-of-the-art dew-point evaporative cooling and provides key insights into current research efforts and future research interests. Novel energy-efficient and environment-friendly cooling technologies are essential to reduce the sharply rising energy consumption and greenhouse gas emissions and achieve carbon neutrality. Conventional air-conditioners which adopt a vapor compression cycle are neither energy-efficient nor sustainable due to the use of compressors and chemical refrigerants, as well as their intrinsic coupling of sensible and latent cooling loads. With the merits of high energy efficiency and the ability to decouple cooling loads without using chemical refrigerants, indirect dew-point evaporative cooling provides an ideal alternative solution to air conditioning in a variety of applications. A comprehensive review of evaporative cooling and their underlying engineering challenges is included. Advanced engineering and modeling experience critical to the development of dew-point evaporative coolers are highlighted. The effective analysis techniques for dew-point evaporative coolers are documented, and their intrinsic characteristics captured by these methods are reported. Lastly, advanced dew-point evaporative cooling systems in various energy-connected applications are discussed by providing multiple case studies. Specifically targeted at HVAC engineers, thermal scientists, and energy-engineering researchers, this book will balance fundamental concepts, industrial applications, and leading-edge research. As this book provides readers with depth and breadth of coverage, it can also be used by graduate-level students in relevant fields.
Author: Charles Oluwaseun Adetunji
Publisher: Academic Press
ISBN: 0323886213
Category : Technology & Engineering
Languages : en
Pages : 480
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Book Description
Evaporative Coolers for the Postharvest Management of Fruits and Vegetables covers world demand for food of high quality without chemical preservatives and with extended shelf life. The book provides the practical application of evaporative coolers, with a strong focus on postharvest management and fruit/vegetable science as high moisture foods are highly perishable. Special emphasis is laid on the impact of the evaporative coolant structure on the nutritional and food safety content of fresh produce. Moreover, the book covers the effect of evaporative coolant structure towards the reduction of spoilage microorganisms responsible for the spoilage of post-harvest losses of various fruits and vegetables. Edited by a team of specialists, this title also helps people dealing with microbiology understand how this simple technology can help improve product quality for communities that currently lack access to cooling or have unreliable power supplies. Thoroughly explores shelf-life extensions that can be achieved when applying evaporative cooling Covers postharvest management through evaporative cooling Brings food and consumer science aspects from evaporative cooled fruits and vegetables Presents information on the interaction of edible coatings towards the extension of climacteric and non-climacteric fruits
Author: Arthur William Gutenberg
Publisher:
ISBN:
Category : Air conditioning
Languages : en
Pages : 598
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Book Description
Author: Noureddine Benkeblia
Publisher: Springer Nature
ISBN: 3031658124
Category :
Languages : en
Pages : 260
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Book Description
Author: John R. Watt
Publisher: Prentice Hall
ISBN:
Category : House & Home
Languages : en
Pages : 536
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Book Description
"Providing guidance to design engineers and contractors, this book illustrates in full detail how operational savings of 50 to 75 percent can be achieved with evaporative cooling technologies compared to equivalent electric-based systems. Thorough in scope, the book addresses the technical aspects of evaporative cooling, as well as a broad range of specific commercial and industrial applications. Topics include cost analysis, technology and equipment options, application guidelines, and operational and performance characteristics. The third edition adds a new chapter which shows how evaporative cooling can be integrated into large-scale HVAC systems, with discussions of achievable savings, maintenance costs, cooling tower and finned coil indirect cooling, wet bulb economizers, precooling condensed air, makeup air and return air, humidity control, and more, including sample calculations as well as demonstration and engineering data."--BOOK JACKET.Title Summary field provided by Blackwell North America, Inc. All Rights Reserved
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 44
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Book Description
This paper describes the latest results of an ongoing analysis investigating the potential for evaporative cooling as an energy-efficient alternative to standard air-conditioning in California residences. In particular, the study uses detailed numerical models of evaporative coolers linked with the DOE-2 building energy simulation program to study the issues of indoor comfort, energy and peak demand savings with and without supplemental air-conditioning and consumptive water use. In addition, limited surveys are used to assess the current market availability of evaporative cooling in California, typical contractor practices and costs, and general acceptance of the technology among engineers, contractors, and manufacturers. The results show that evaporative coolers can provide significant energy and peak demand savings in California residences, but the impact of the increased indoor humidity on human comfort remains an unanswered question that requires further research and clarification. Evaluated against ASHRAE comfort standards developed primarily for air-conditioning both direct and two-stage evaporative coolers would not maintain comfort at peak cooling conditions due to excessive humidity. However, using bioclimatic charts that place human comfort at the 80% relative humidity line, the study suggests that direct evaporative coolers will work in mild coastal climates, while two-stage models should provide adequate comfort in Title 24 houses throughout California, except in the Imperial Valley. The study also shows that evaporative coolers will increase household water consumption by less than 6% on an annual basis, and as much as 23% during peak cooling months, and that the increases in water cost are minimal compared to the electricity savings. Lastly, a survey of engineers and contractors revealed generally positive experiences with evaporative coolers, with operational cost savings, improved comfort, unproved air quality as the primary benefits in their use.
Author: Pavan Kumar Verubhotla
Publisher:
ISBN:
Category : Electronics
Languages : en
Pages : 174
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Book Description
Author: Thane Brown
Publisher: CRC Press
ISBN: 1420008102
Category : Science
Languages : en
Pages : 370
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Book Description
Engineers often find themselves tasked with the difficult challenge of developing a design that is both technically and economically feasible. A sharply focused, how-to book, Engineering Economics and Economic Design for Process Engineers provides the tools and methods to resolve design and economic issues. It helps you integrate technical a
Author: John Watt
Publisher: Springer Science & Business Media
ISBN: 1461322596
Category : Science
Languages : en
Pages : 528
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Book Description
Air conditioning boosts man's efficiency no less than his comfort. Air-conditioned homes, offices, and factories unmistakably raise human productivity and reduce absenteeism, turnover, mistakes, accidents and grievances, especially in summer. Accordingly, many employers every year cool workrooms and offices to raise summer profits. Employees in turn find cool homes enhancing not only comfort and prestige but also personal efficiency and income. With such economic impetus, low-cost summer cooling must irresistibly spread to all kinds of occupied buildings. Refrigeration provides our best cooling, serving well where people are closely spaced in well-constructed, shaded, and insulated structures. However, its first and operating costs bar it from our hottest commercial, industrial, and residential buildings. Fortunately, evaporative cooling is an economical substitute in many regions. First used in Southwest homes and businesses and in textile mills, it soon invaded other fields and climates. In 1946, six firms produced 200,000 evaporative coolers; in 1958, 25 firms produced 1,250,000, despite the phenomenal sale of refrigerating window air conditioners. Though clearly secondary to refrigeration, evaporative cooling is 60 to 80 percent is economical for moderate income groups and cheaper to buy and operate. Thus, it climates where summers are short. Moreover, it cheaply cools hot, thinly constructed mills, factories, workshops, foundries, powerhouses, farm buildings, canneries, etc., where refrigerated cooling is prohibitively expensive.
