Solar Envelope Concepts

While solar technology for individual buildings has become an accepted part of architectural design, Knowles takes the next innovative step. In this book, he proposes solar access in urban environments with a novel design method called the "solar envelope."Ralph L. Knowles is Professor of Architecture, University of Southern California, Los Angeles.

Solar energy utilization in urban areas requires public guarantees that all property owners have direct access to the sun. The study examines the implications of this premise in relation to the need for cities to also encourage or accommodate rebuilding and future development. The public policy mechanism for guaranteeing solar access is conceptualized as a solar zoning envelope that allows the largest possible building bulk on a land parcel without shadowing neighboring properties during specified times. Step-by-step methods for generating solar envelopes are described with extensive drawings, showing a variety of urban platting and lot configurations. Development and design possibilities are examined on a selected set of Los Angeles sites with typically diverse urban characteristics. Envelope attributes suitable for encouraging moderate-density commercial and residential building are examined in the context of two hypothetical but realistic development programs: one for speculative office buildings and one for condominium housing. Numerous illustrations of envelope forms and prototypical building designs are provided. The results of development simulation studies on all test sites are tabulated to show building bulk, density, land-coverage and open space characteristics obtainable under the hypothesized envelopes.

This book presents a series of significant methods and examples for the design of sustainable intelligent facades in a variety of contexts. Emphasis is placed on how intelligence has been applied for successful energy-saving efforts in the planning of building envelopes. Readers will find essential information on the core principles involved in designing, calculating and organizing intelligent facades according to the need for a new or retrofitted building. Not only are different materials and technologies considered, but also efficient ways to combine them according to user needs and other project-specific constraints. Illustrations, tables and graphs accompany the text, clarifying the concepts discussed. Architects, facade consultants and all those interested in and energy-saving measures and improved indoor comfort will find this book useful not only as an introduction to the subject but also as a guide to achieving more responsive building methods.

In examining North American Spanish cities, this book presents a neglected aspect of American urban history.

Today, architects and designers are beginning to look toward developments in new "smart" or "intelligent" materials and technologies for solutions to long-standing problems in building design. However, these new materials have so far been applied in a diverse but largely idiosyncratic nature, because relatively few architects have access to information about the types or properties of these new materials or technologies. Two of the leading experts in this field - Addington and Schodek - have solved this problem by incorporating all the relevant information of all the latest technologies available to architects and designers in this one volume. They present materials by describing their fundamental characteristics, and go on to identify and suggest how these same characteristics can be exploited by professionals to achieve their design goals. Here, the wealth of technical understanding already available in the materials science and engineering literature is at last made accessible to a design audience.

Celebrated architect Ralph Knowles, Distinguished Emeritus at USC’s School of Architecture, has carefully crafted a book for architects, designers, planners—anyone who yearns to reconnect to the natural world through the built environment. He shows us how to re-examine a shadow, a wall, a window, a landscape, as they respond to the natural cycles of heat, light, wind, and rain. Analyzing methods of sheltering that range from a Berber tent to a Spanish courtyard to the cityscape of contemporary Los Angeles, Ritual House shows us the future: by coining the concept of solar access zoning, he introduces a radical yet increasingly viable solution for tomorrow’s mega-cities.

This book presents the main principles for designing buildings and neighborhoods with increased potential to capture and utilize solar energy. It discusses practical issues in the design of the built environment and their impact on energy performance; and a range of design considerations, from building components (e.g. the building envelope) to urban planning issues (e.g. density and street layouts). In addition to design guidelines on how to increase buildings’ potential to capture solar energy, the book provides creative tips to increase the aesthetic value of solar technology integration in buildings. Helping readers plan energy-efficient buildings with innovative building envelope technologies, and to understand the impact of early-stage design considerations on the energy performance of buildings and communities, the book offers a valuable source of information for building professionals, including architects, engineers, and urban planners. It can also serve as a reference guide for academics and students of energy efficiency in buildings and urban planning.

With the improved efficiency of heating, cooling and lighting in buildings crucial to the low carbon targets of all current governments, Building Science: Concepts and Applications provides a timely and much-needed addition to the existing literature on architectural and environmental design education. Taking a logical and didactic approach, the author introduces the reader to the underlying concepts and principles of the thermal, lighting, and acoustic determinants of building design in four integrated sections. The first section explores the thermal building environment and the principles of thermal comfort, translating these principles into conceptual building design solutions. The author examines the heat flow characteristics of the building envelope and explains steady state design methods that form the basis of most building codes. He discusses the sun as a natural heat source and describes the principles of active and passive solar building design solutions. The second section introduces the scientific principles of light, color, and vision, stressing the importance of daylight in building design, presenting the Daylight Factor design concept and methodology, and discussing glare conditions and their avoidance. It also addresses artificial lighting, delving into the prominent role that electricity plays in the production of light by artificial means and comparing the efficacy and characteristics of the various commercially available light sources in terms of the energy to light conversion ratio, life span, available intensity range, color rendition properties, and cost. The third section deals with the various aspects of sound that impact the design of the built environment, discussing the nature of sound as a physical force that sets any medium through which it travels into vibration and laying the foundations for the treatment of sound as an important means of communication as well as a disruptive disturbance. The final section discusses the foundational concepts of ecological design as a basis for addressing sustainability issues in building design solutions. These issues include the embedded energy of construction materials, waste management, preservation of freshwater and management of graywater, adoption of passive solar principles, energy saving measures applicable to mechanical building services, and the end-of-lifecycle deconstruction and recycling of building materials and components. Covers the fundamental building science topics of heat, energy, light and sound Takes a logical and didactic approach, tracing the historical roots of building science Includes summaries of new technologies in solar energy and photovoltaic systems Features a section on the principles of sustainable architecture Website with answers to MC questions testing students' learning