دانلود رایگان مقاله لاتین اجزای سازنده در روشنایی روز بین اتاقی از سایت الزویر
عنوان فارسی مقاله:
اثر خارجی و داخلی اجزای سازنده و بازتابنده در روشنایی روز بین اتاقی
عنوان انگلیسی مقاله:
Effect of externally and internally reflective components on interior daylighting
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Design of buildings for indoor comfort and daylighting depends on many parameters as climatic locality and sky conditions, building surroundings, internal room geometry, window size and orientation, window glazing and shadings, and geometry and interior finishings [1]. Total amount of the natural light is distributed into buildings in three ways as the light transmitted directly from the sky and externally and internally reflected components [1,2]. The externally reflected component is influenced due to surface reflectance of the surroundings as the ground and external obstructions. The internally reflected component depends on interior surfaces as wall and floor and ceiling finishes and furnishing. Shading obstructions as neighbouring buildings, walls, billboards, trees and bushes and ground surfaces etc. at a building site influence indoor visual environment [3,4], They limit sky component but effect externally reflected component of rooms daylighting. Analyses of daylight evaluation show importance of ground reflection for the internal daylight performance [5,6]. Daylighting in building interiors is also influenced due to internally reflected component of daylighting [7,8]. Room geometry and interior colour design [9] and surface patterns are important for inter-reflections and scattering of daylight in the interiors [10]. Indoor daylighting should be optimised with respect of the above mentioned factors of the external and internal reflections [11,12]. Daylight simulations are useful for the design optimisation. The simulations are in many cases carried out for the most unfavourable daylight conditions. It means for the dark ground and overcast sky [13]. In real sky conditions external illuminance variations influences indoor daylighting [13,14]. Also different surfaces of ground as asphalt or concrete pavement, grass, sand or gravel fillings have effect on the external reflective component of indoor daylighting [15]. A snow cover has importance for the ground reflection in annual daylight evaluations, in snowy regions. Values of light re- flectance for common exterior and interior surfaces are available for lighting evaluation purposes [16,17]. They can be used as input data for computer daylight simulation. The simulation of daylighting [18,19] in buildings gives possibility of design studies for the best practice of daylighting for indoor visual comfort. The article is focused on an analysis of daylighting in a residential area influences by different externally and internally re- flected components for clear and also overcast sky conditions. Computer daylight simulations were run for the evaluation. The simulation outputs give data for design requirements for daylighting in the side-lit residential areas.
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کلمات کلیدی:
PDF]Effects of Sun Controls on Buildings Interior Lighting and Thermal ... www.cder.dz/download/Art7-1_5.pdf by N Zemmouri - Cited by 1 - Related articles In most cases they ignore the effect on the interior daylighting environment, .... The Internal Reflected component is estimated using the BRS formula [9]. Effect of externally and internally reflective components on interior ... isi-dl.com/item/159028 ... wiley.com, worldscientific.com. SEARCH. Effect of externally and internally reflective components on interior daylighting. sciencedirect.com. Source Link ... Building Services and Equipment https://books.google.com/books?isbn=1317892704 F. Hall - 2015 - Technology & Engineering 142 144 Lux (Im/m”) Limiting glare index Laundries (general) Printing (general) ... to be applied to the internally reflected component of daylight to allow for dirt on ... As mentioned previously, this form of interior lighting is particularly suitable in ... Daylight Design of Buildings: A Handbook for Architects and Engineers https://books.google.com/books?isbn=1134257341 Nick Baker, Koen Steemers - 2014 - Architecture daylight. Figure 4.15 Before the 20th century, the interior finishes of ... that is reflected from internal surfaces is called the internally reflected component (IRC). Environment and Services - Page 51 - Google Books Result https://books.google.com/books?isbn=1317891503 Peter Burberry - 2014 - Technology & Engineering The daylight factor is made up of three components. ... by reflection from the internal surfaces of the room (the internally reflected component). ... if the working plane is adequately illuminated, the walls will be well lit, giving a pleasant interior. Daylighting - Wikipedia https://en.wikipedia.org/wiki/Daylighting Daylighting is the practice of placing windows or other openings and reflective surfaces so that .... The principle method of light redirection is by Total Internal Reflection (TIR) of light ... The tube itself is a passive component consisting of either a simple reflective interior coating or a light conducting fiber optic bundle. Searches related to internally reflective components on interior daylighting externally reflected component internally reflected component sky component daylight factor
