office environment

The main purpose of lighting in offices is to provide effective and comfortable working environments. Mental comfort and health in turn guarantee an increase in user motivation and lead to better performance and efficiency. Providing sufficient and appropriate light in the workplace increases the willingness to work in employees, the operational accuracy and efficiency, and output. It also results on ocular health, better protected eyes and less fatigued nerves work better, and eventually fewer workspace accidents.The purpose of this research is to investigate lighting from the perspective of operational satisfaction and well-being using the case of Shiraz National Documentation Center.In this research, it is assumed that in the space occupied by the users; while using artificial light in the space, they are not satisfied with the amount of natural light and its effective factors. 

In this regard, after using library resources, in the topic of space lighting, field data collection with a photometer and in the topic of employee satisfaction and well-being, a phenomenological and psychoanalytical approach to analyze the unconscious behavior of humans through questionnaires and software analysis in SPSS; Because the brightness of the space alone does not have the ability to express the pleasantness and desirability of the ambient lighting from the users’ point of view. 

According to the results, employees have an average of 50% or higher in terms of satisfaction, well-being and visual comfort. But it does not mean that those who are working in the space without natural light are satisfied with the conditions. According to field observations, these spaces do not even have substitutes for visual compositions and nature themes. In terms of satisfaction, well-being and visual comfort in the female group, the average values are higher than the male group; In the post-graduate class, it is more than other classes and the working position of expert is higher than other working positions.

Lighting is one of the physical factors of work environments that play an important role in protecting visual health and preventing work-related accidents. The current study aims to optimize the received daylight and the desirability of office space lighting to evaluate the lighting status of the rooms of a four-storey office building in Tehran. This research, which is an applied study, has been conducted on the employees of the mentioned building in a quarterly period. The research method is a combination of analytical method with the use of software simulation and modeling. In the field section, at the same time with the staff survey, the brightness of the study environment in real conditions was measured using a light meter. The results of field assessments and surveys show that in more than half of the rooms of this building, the local light intensity is higher than the recommended standard values and this has caused users to be dissatisfied with the lighting situation and visual comfort. The authors' suggested solution is to use a kinetic façade system to make optimal use of daylight and efficient lighting in the interior. This system reduces the visual damage caused by non-standard ambient lighting by controlling the amount of light received and adjusting the glare of the light in the environment. In this process, using the findings of space modeling in Rhino software and Diva plugin, the existing technology in the country was used to design a functional kinetic façade. The results show that the application of a shell responsive to a particular variable (daylight), the possibility of controlling the light entering the building based on the change as a result of the application and the degree of glare (DGP) for annual analysis reliably.