Browsing by Author "Chou, Chia-Peng"
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- Community spaces in elderly housing: a study of design research communicationChou, Chia-Peng (Virginia Polytechnic Institute and State University, 1983)Recent experiences in environmental design have suggested the importance of understanding the wants and needs of users of various settings. Designers of large-scale environments find it necessary to turn to others professionals for guidance in designing more responsive settings for daily living. Existing misfits between behavioral needs of the elderly and the community spaces in planned residential environments are explored. It was found that the designer often worked with inadequate and sometimes misleading information while confronted with tasks which demanded deeper understanding of human behavior and desires. The central issue of this thesis is focused on the questions: how can we bridge the communication gap between researchers and designers? And, how can the information, which were presented by behavioral researchers, be best translated into formats useful to designers? As an illustration, the thesis concludes with the descriptions of the guidelines for twenty-two activity areas deemed essential in the design of community spaces in elderly housing. In these guidelines, spatial relationships, environmental qualities, and furnishings and equipment for each are suggested.
- A mathematical model of building daylighting based on first principles of astrometry, solid geometry and optical radiation transferChou, Chia-Peng (Virginia Polytechnic Institute and State University, 1987)There is a growing recognition in design professions that lighting is a significant factor in energy consideration. This has generated an interest in daylighting; the bringing of direct and diffuse daylight into buildings to reduce the use of artificial lighting. Many methods exist for quantifying diffuse daylight distribution for use in the design of buildings, but the methods vary widely both in technique and capability. Moreover, no present method deals with direct daylight (sunshine) distribution. Additionally, none have taken advantage of improvements in computer technology that make feasible more complex mathematical computational models for dealing with direct and diffuse daylight together. This dissertation describes the theoretical development and computer implementation of a new mathematical approach to analyzing the distribution of direct and diffuse daylight. This approach examines light transfer from extraterrestrial space to the inside of a room based on the principles of astrometry, solid geometry, and radiation transfer. This study discusses and analyzes certain aspects critical to develop a mathematical model for evaluating daylight performance and compares the results of the proposed model with 48 scale model studies to determine the validity of using this mathematical model to predict the daylight distribution of a room. Subsequent analysis revealed no significant variation between scale model studies and this computer simulation. Consequently, this mathematical model with the attendant computer program, has demonstrated the ability to predict direct and diffuse daylight distribution. Thus, this approach does indeed have the potential for allowing designers to predict the effect of daylight performance in the schematic design stage. A microcomputer program has been developed to calculate the diffuse daylight distribution. The computation procedures of the program use the proposed mathematical model method. The program was developed with a menu-driven format, where the input data can be easily chosen, stored, and changed to determine the effects of different parameters. Results can be obtained through two formats. One data format provides complete material for analyzing the aperture size and location, glass transmission, reflectance factors, and room orientation. The other provides the graphic displays which represent the illuminance in plan, section, and 3-dimensional contour. The program not only offers a design tool for determining the effects of various daylighting options quickly and accurately in the early design stage, but also presents the daylight distribution with less explanation and with more rapid communication with the clients. The program is written in BASICA language and can be used with the IBM microcomputer system.