International Journal of Applied Engineering Research ISSN 0973-4562 Volume 11, Number 7 (2016) pp 5288-5292 © Research India Publications. http://www.ripublication.com 5288 Innovative design strategy to develop facades opening for a commercial building in Amman, Jordan Hind Alshoubaki and Tasneem Rawashdeh Lecturer, University of Jordan, Department of Architectural Engineering, India E-mail: alshoubakihind@yahoo.com Khaled Alomari & Rizq Hammad corresponding author Professor, Department of Architectural Engineering, India Abstract Natural light is one of the most important elements in architecture, helping to transform spaces and save energy. Day lighting design starts with the selection of a building site and continues as long as the building is occupied. This study is seeking to enhance buildings envelope facades with architectural aesthetic potential and optimizing daylight to boost both the quality of health and wellbeing as well as improving the building energy efficiency. The primary control of daylight should be made by the choice of the opening size and Position.This study tries to form the architectural composition of façade which can be Measured by using digital technology involved in building physics, through Computational process of cellular automata (CA). Cellular automata are the computational method which can simulate the process of Growth by describing a complex system by simple individuals following simple rules. The connection to architecture is the ability of cellular automata to generate patterns, which is useful to propose an innovative design strategy Keywords: Cellular Automata (CA), Day lighting, Building Physics, Building façades Geometric patterns, Energy saving. Introduction Day lighting strategies and architectural design strategies are inseparable. Daylight not only replaces artificial lighting, reducing lighting energy use, but also influences both heating and cooling loads. Planning for daylight therefore involves integrating the perspectives and requirements of various specialties and professionals. Daylight System A daylighting system is comprised not just of daylight apertures, such as skylights and windows, but is coupled with a daylight-responsive lighting control system. When there is adequate ambient lighting provided from daylight alone, this system has the capability to reduce electric lighting power. Further, the fenestration, or location of windows in a building, must be designed in such a way as to avoid the admittance of direct sun on task surfaces or into occupants' eyes. Alternatively, suitable glare remediation devices such as blinds or shades must be made available. Implementing daylighting on a project goes beyond simply listing the components to be gathered and installed. Day lighting requires an integrated design approach to be successful, because it can involve decisions about the building form, sitting, climate, building components (such as windows and skylights), lighting controls, and lighting design criteria. The Design of Daylighting. The science of daylighting design is not just how to provide enough daylight to an occupied space, but how to do so without any undesirable side effects. Beyond adding windows or skylights to a space, it involves carefully balancing heat gain and loss, glare control, and variations in daylight availability. For example, successful daylighting designs will carefully consider the use of shading devices to reduce glare and excess contrast in the workspace. Additionally, window size and spacing, glass selection, the reflectance of interior finishes, and the location of any interior partitions must all be evaluated. Daylighting In Offices. Day lighting in the Offices is considered as critical issue where Occupants in day lit and full-spectrum office buildings reported an increase in general well being. Specific benefits in these types of office environments include better health, reduced absenteeism increased productivity, financial savings, and preference of workers (1) 1 . Benefits to the office worker are so great that many countries in Europe require that workers be within 27 feet of a window (Franta and Anstead 1994). Studies show that the proper use of day lighting decreases the occurrence of headaches, SAD, and eyestrain (Franta and Anstead 1994). Headaches and SAD are related to insufficient light levels. These ailments are reduced when the lighting level is improved by using proper spectral light. However, the number one health problem in offices is eyestrain (Ott Biolight Systems, Inc. 1997a). Studies show that office worker productivity can increase with the quality of light. Studies of the effects of light on productivity date back to the 1920s(2) 2 .Because the building envelope has a role as a medium between inside and outside, it has much potential to make an enhancement of residents comfort and also reduce 1 Bertman, T. “Creating Comforts: Companies Weave Employees? Needs into Thoughtful Design Plans 2 Bilbrey, B. (July 3, 2001). Telephone Conversation with Natural Lighting Company Vice President.