Table 4 Average spatial dimensions, window size (by the authors).
Related Figures (19)
Source: www.engineeringtoolbox.com/light-level-rooms Table 1; Common outdoor light levels at day and night: Table 2: Proper daylight factor in educational spaces Table 3: Proper [luminance in educational spaces. In addition to the good amount of natural light, direct sunlight should be controlled to stop glare, overheating and disturbing thermal comfort in spaces, especially during the summer. Also, providing good visual contact with the outside and reflection coefficient of interior surfaces are important. Figure 3 shows appropriate reflection factors for educational spaces. The appropriate amount is 70 to 90 percent for ceilings, 30 to 50 percent for floor, 40 to 60 percent for walls and over 20 percent for educational boards. Figure 2: Appropriate reflection factors for educational spaces [1 3. METHODOLOGY Figure 3: Site Location of Kashim Ibrahim Library. Vol. 7, Issue 4, pp: (6-20), Month: October - December 2019, Available at: www.researchpublish.com Figure 4: Arrangement of Freestanding Shelves in the Library. Figure 5: Horizontal shading devices used on the north face of the building. Daylight factor of the space. Vol. 7, Issue 4, pp: (6-20), Month: October - December 2019, Available at: www.researchpublish.com Iiluminance of the space. Southeast space. The simulation of the Southeast Space of the library is shown below; compiaring the space with natural daylight and the combination of the dalight and energy use of the space. /ol. 7, Issue 4, pp: (6-20), Month: October - December 2019, Available at: www.researchpublish.com Iluminance of the space The selected building of this study (KASHIM IBRAHIM LIBRARYABU) is located in North Zaria (35° Latitude, 33° Longitude). North Zaria features a rain, sun, wind, humidity and temperature. The Long-range 10 day forecast also includes detail for Zaria weather today. Live weather reports from Zaria weather stations and weather warnings that include risk of thunder, high(Ultraviolet) UV index and forecast gale. Vol. 7, Issue 4, pp: (6-20), Month: October - December 2019, Available at: www.researchpublish.com The graph shows the monthly number of rain, sun, wind, overcast and precipitation days. Days with less than 30% cloud cover are considered as sunny, with 30-70% cloud cover as partly cloudy and with more than 70% as overcast. Figure 7: ABU library interior pictures showing the use of artificial lightening. The results could be useful for physical reformation of the implementation examples and also in new designs. dow much daylight illuminance is sufficient for student’s tasks in library building and other educational spaces? Figure 8: Floor Plan of the Second Floor of Kashim Ibrahim Library.
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