Natural L ighting of Studio Apartment with East-Oriented Opening

Aisyah Anindya Putri,Tri Wulan Sari,Politeknik Negeri Jakarta ,Dyah Nurwidyaningrum

doi:10.31940/logic.v21i1.2256

Abstract

Less optimized natural lighting would result in apartment residents being dependent on artificial lighting, thus increasing energy consumption. Building opening orientation considerably influences the natural light intensity. This research aimed to analyze the natural lighting pattern on apartment units with east-oriented opening orientation and determine methods to support the existing condition to be optimized. This research applied the descriptive analysis research method assumed from calculation outcome of the software DIALux. Results indicated a proportion of units in The H-Residence Apartment do not meet the requirements specified by SNI 03 6197-2011, predominantly in the kitchen area. The average light intensity in a day in units with east-oriented opening reached its peak at 08.00 – 09.00 a.m. and decreased towards 16.00 p.m. following the sun path. The light intensity in numerous areas exceeded the requirements significantly. Other factors influencing the natural light distribution are layout and interior element. Several ways to optimize the natural light intensity utilization are adding suitable shading device, using dark-colored interior elements, and considering the sun path in designing building openings.

Highlights

The building sector in Indonesia is the largest energy consumer after the industrial and transportation sector, reckoned at 24% in 2004 and still expected to rise to 39% by 2030
The energy consumption generated by the use of artificial lighting contributes about 15%– 25% to building’s total energy consumption [1]
In countries with tropical climate, lighting system that depends on natural lighting from the sun could decrease the use of artificial lighting, reducing energy consumption

Summary

Introduction

The building sector in Indonesia is the largest energy consumer after the industrial and transportation sector, reckoned at 24% in 2004 and still expected to rise to 39% by 2030. In countries with tropical climate, lighting system that depends on natural lighting from the sun could decrease the use of artificial lighting, reducing energy consumption. Less optimized natural lighting intensity might result in apartment residents being dependent on artificial lighting, increasing energy consumption per unit so as affecting the expenses paid by the residents [3]. One of the factors influencing the penetration depth of natural light is window or opening orientation [4], [5]. This theory is based on the sun path throughout the day that progresses from east to west, influencing the natural lighting received by building opening depending on its orientation. The optimal opening orientation for buildings in Jakarta that is located in the equator area would be facing south or north to avoid excessive radiation and high temperature [6, 7]

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Results

Conclusion