Air Conditioning with Natural Energy is a comprehensive examination of the principles, theory, applications, and energy saving performance of newly developed technologies for air conditioning using natural energy. Based on the latest research and real-world case studies from North America, Europe, and China, the book provides an engineering perspective on the design and application of air conditioning from multiple climates. The book is divided into two parts. Part I examines the range of air conditioning technologies that use natural energy. This includes enhanced treatment technologies for outdoor air such as earth-to-air heat exchanger, fresh air pre-handling system using shallow geothermal energy, as well as newly developed technologies such as pipe-embedded wall, nocturnal cooling wall, and pipe-embedded window systems. With particular focus on applications in China, Part II provides real world case studies from multiple climatic zones, demonstrating the practical application and implementation of these technologies. Each case study analyses the carbon emission reduction potential, energy saving potential and the operational performance of the technologies. Air Conditioning with Natural Energy is an invaluable review of the latest developments in air conditioning technologies for practicing engineers, researchers, and students involved in the design and implementation of HVAC systems or working in the fields of thermal and mechanical engineering and the sustainable built environment. Explains the theory and principles underpinning the latest and most important air conditioning technologies with natural energy Provides a new decision-making index and revised degree hours to evaluate the energy saving potential of different air conditioning technologies with natural energy, helping readers identify the most suitable air conditioning technology for any climate zone Analyzes the energy saving potential of different technologies from real projects in different climate zones and calculates the contribution of carbon emission reduction that can be achieved globally

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.