scholarly journals Natural L ighting of Studio Apartment with East-Oriented Opening

2021 ◽  
Vol 21 (1) ◽  
pp. 23-30
Author(s):  
Aisyah Anindya Putri ◽  
◽  
Dyah Nurwidyaningrum ◽  
Tri Wulan Sari ◽  
◽  
...  
Keyword(s):  
Energy Consumption ◽  
Light Intensity ◽  
Research Method ◽  
Descriptive Analysis ◽  
Natural Light ◽  
The Sun ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Factors Influencing ◽  
Shading Device

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.

scholarly journals The Architectural Analysis of the Illuminance Level in the Workspace, Using Natural and Artificial Lighting in Graha Pena Building in Makassar, Indonesia

2021 ◽  
Vol 21 (1) ◽  
pp. 1-12
Author(s):  
Nurul Jamala ◽  
Ramli Rahim ◽  
Sharyzee Mohamad Shukri
Keyword(s):  
Energy Efficient ◽  
Descriptive Analysis ◽  
Building Design ◽  
Building Envelope ◽  
Natural Light ◽  
Architectural Analysis ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Work Area ◽  
Lighting Systems

Energy-efficient building design models are one of the factors that need to be considered in building planning. In the morning to evening, sunlight as a source of natural light can be used as a source of lighting in buildings. By utilizing natural light, it will reduce energy consumption in buildings. Air conditioning and lighting are important factors in designing energy efficient buildings. In this study, analyzing natural and artificial lighting at Graha Pena Makassar Building. The research method is quantitative by measuring and analyzing several workspaces that are directly and indirectly related to openings in the building envelope. statistical descriptive analysis, namely entering data into tables and graphs, then analyzing the level of illumination in the analyzed workspace. The research objective was to determine the level of illuminance in several workspaces with different orientations. How is the effect of natural light distribution on building orientation and how is the artificial lighting system at workspace in the Graha Pena Makassar. The results showed that the orientation of the building had an effect on the distribution of natural light into the space. The spatial orientation facing East has a higher distribution of natural light than that of the south. Workspaces that are not directly related to window openings in the building envelope are using artificial lighting systems in the form of lights. The workspace has uneven illumination levels in its work area, because the layout and placement of lighting points have not been well planned. The contribution of this research is a reference in designing a building facade design with an attractive appearance, and can maximize the use of solar energy as a source of natural lighting, while still paying attention to the visual comfort of space users.

Review of the Current State and Future Development in Standardizing Natural Lighting in Interiors

2018 ◽  
pp. 5-26 ◽  
Author(s):  
Stanislav Darula
Keyword(s):  
Human Life ◽  
Natural Light ◽  
Artificial Lighting ◽  
Computer Tools ◽  
Natural Lighting ◽  
Current State ◽  
Minimum Requirements ◽  
Life On Earth ◽  
Window Design

Three elements mainly wind, water and sun seemed to determine in ancient ages the basic phenomena of life on Earth. Architectural history documented the importance of sun influence on urban and building construction already in layouts of Mesopotamian and Greek houses. Not only sun radiation but especially daylight played a significant role in the creation of indoor environment. Later, in the 20th century, a search of interaction between human life in buildings and natural conditions were studied considering well­being and energy conscious design recently using computer tools in complex research and more detail interdisciplinary solutions. At the same time the restricted daytime availability of natural light was supplemented by more efficient and continually cheaper artificial lighting of interiors. There are two main approaches to standardize the design and evaluation of indoor visual environment. The first is based on the determination of the minimum requirements respecting human health and visibility needs in all activities while the second emphasizes the behaviour and comfort of occupants in buildings considering year­around natural changes of physical quantities like light, temperature, noise and energy consumption. The new current standardization basis for daylight evaluation and window design criteria stimulate the study of methodology principles that historically were based on the overcast type of sky luminance pattern avoiding yearly availability of sky illuminance levels. New trends to base the daylight standardization on yearly or long­term availability of daylight are using the averages or median sky illuminance levels to characterise local climatological conditions. This paper offers the review and discussion about the principles of the natural light standardization with a short introduction to the history and current state, with a trial to focus on the possible development of lighting engineering and its standards in future.

Effect of the Window Position in the Building Envelope on Energy Consumption

2018 ◽  
Vol 7 (3) ◽  
pp. 1861
Author(s):  
Neveen Y. Azmy ◽  
Rania E. Ashmawy
Keyword(s):  
Energy Consumption ◽  
Light Intensity ◽  
Environmental Performance ◽  
Lower Energy ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Natural Lighting ◽  
Energy Plus ◽  
Window Position

Windows play a significant role as they largely influence the energy load. Although there are many studies on the energy-efficient windows design, there is still a lack in information about the mutual impact of windows’ size, position and orientation on the energy loads. In this paper, the effect of different window positions and orientations on the energy consumption in a typical room in an administrative building that is located in the hot climatic conditions of Cairo city, Egypt is considered. This case study has been modeled and analyzed to achieve good environmental performance for architectural space, as well as assessing its impact on the amount of natural lighting required by using the Energy Plus program. The study concludes that the WWR (Window Wall Ratio) 20% square north-oriented upper  opening consumes 25% lower energy than the rectangular 3:1 opening in the lower west-oriented façade. The upper openings are the highest in terms of light intensity, as they cover about 50% of the room area. The WWR 30% rectangular north-oriented upper 3:1 opening consumes 29% lower energy than the rectangular lower 3:1opening in the façade. Regarding light intensity, the upper openings are the best for natural lighting as the light covers more than 60% of the room area.                                                                                                                                                               

Case Study: Performance Assessment of Various Sun Shades for Hot-Dry Climate

2013 ◽  
Vol 816-817 ◽  
pp. 875-881 ◽  
Author(s):  
R. Sairam ◽  
P.L. Raviteja ◽  
A. Naresh
Keyword(s):  
Energy Consumption ◽  
South India ◽  
Solar Heating ◽  
Heat Gain ◽  
Natural Lighting ◽  
Shading Devices ◽  
Shading Device ◽  
Study Performance

There are many reasons to control the amount of sunlight admitted into a building. In warm, sunny climates excess solar gain may result in high cooling energy consumption. In cold and temperate climates winter sun entering south-facing windows can positively contribute to passive solar heating; and in nearly all climates controlling and diffusing natural Illumination will improve day lighting. A Well-designed sun control and shading devices can dramatically reduce building peak heat gain and cooling requirements and improve the Natural lighting quality of building interiors. In this casestudy Shading Devices commonly found in India are evaluated to find Optimized Shading Device for Hot-Dry Climate of South India

KAJIAN KARAKTERISTIK PENCAHAYAAN BUATAN PADA BIOSKOP (STUDI KASUS : CINEMACITRA XXI,MALL CIPUTRA,KOTA SEMARANG)

MODUL ◽  
2018 ◽  
Vol 17 (2) ◽  
pp. 75
Author(s):  
Nadiah Khamairah ◽  
Sri Hartuti Wahyuningrum
Keyword(s):  
Light Source ◽  
Architectural Design ◽  
Natural Light ◽  
Health Safety ◽  
Artificial Lighting ◽  
Natural Lighting

Architecture is a science that covers many areas of other scientific aspects. One aspect considered in architectural design is building utilities. Building utilities are the completeness of building facilities aimed at achieving the elements of comfort, health, safety, ease of communication and mobility in the building so that sustainability activity in the building can run with the best. One of the main aspects of building utilities is lighting. Lighting is divided into natural lighting and artificial lighting. Artificial Lighting is the lighting produced by a light source other than  natural light. Artificial lighting is necessary if the position of the room is difficult to achieve by natural lighting or when natural lighting is insufficient. This paper will be studied artificial lighting characteristic in cinema Citra XXI Semarang.is a space in certain locations which being owned by some societies and being use together with other societies in needs.

scholarly journals PENGGUNAAN SIMULASI DESKTOP RADIANCE PADA KONFIGURASI BENTUK BUKAAN

2021 ◽  
Vol 5 (2) ◽  
pp. 171
Author(s):  
Nova Asriana ◽  
Dewi Rachmaniatus Syariyah
Keyword(s):  
Energy Consumption ◽  
Light Intensity ◽  
Spatial Visualization ◽  
Visual Comfort ◽  
Artificial Lighting ◽  
Building Orientation ◽  
Simulation Based ◽  
Two Phases ◽  
Realistic Images

Abstract: The usage of daylight in a room or building during the day is a wide strategy for illuminating the room naturally without artificial lighting services so that it can reduce the energy consumption of building. In addition, the use of daylight aims to enhance the quality of spatial visualization, vision health, environmental comfort, and increase the performance of user productivity in the room. This research will discourse about the amount of light get into room to identify how much the daylight can be useful and captured by human sight’s perception through a radiance simulation camera which will be translated into realistic images. This simulation is experimental-based that include two phases, namely the configuration of alternative openings and draws light according to the perception of user’s vision, then the set of radiance simulation based on scripting to generate the realistic images. Based on this simulation, the amount of daylight is influenced by source, quantity, position, area of openings and the building orientation or building. The amount of light intensity also affects the visual comfort of users who have activities in the room. The result of this simulation is to identify the room that generates daylight area and non-daylight area to decrease the artificial lighting.Abstrak: Pemanfaatan pencahayaan alami (daylight) pada sebuah ruangan dan bangunan di siang hari merupakan salah satu strategi desain untuk menerangi ruangan secara alami tanpa bantuan cahaya buatan sehingga dapat mengurangi konsumsi energi pada bangunan. Selain itu juga, permanfaatan pencahayaan alami (daylight) bertujuan untuk meningkatkan kualitas visual dalam ruangan, kesehatan indera penglihatan, kenyamanan lingkungan dan meningkatkan produktivitas kinerja pengguna bangunan. Pada penelitian ini akan membahas mengenai besaran cahaya yang masuk ke dalam suatu ruangan untuk melihat seberapa besar pencahayaan alami yang masuk dan ditangkap dalam suatu persepsi indera penglihatan manusia melalui kamera simulasi radiance yang diwujudkan ke dalam foto realistik. Simulasi ini dilakukan dengan metode berbasis eksperimen mandiri (experimental-based) yang terdiri dua tahap, yaitu tahapan konfigurasi bentuk bukaan dan draw light berdasarkan persepsi indera penglihatan peneliti, kemudian dilanjutkan dengan simulasi radiance berbasis scripting untuk menghasilkan foto realistik. Berdasarkan hasil simulasi ini, besarnya cahaya alami yang masuk ke dalam ruangan dipengaruhi oleh beberapa faktor, yaitu sumber bukaan, jumlah bukaan, posisi bukaan, besaran bukaan, dan orientasi ruangan atau bangunan. Besarnya intensitas cahaya yang masuk juga akan mempengaruhi kenyamanan visual bagi pengguna yang beraktivitas dalam ruangan tersebut. Hasil dari penelitian ini untuk melihat konfigurasi mana yang menghasilkan sebagian area daylight dan area non-daylight yang cukup merata untuk menghindari bantuan cahaya buatan.

scholarly journals Analysis on Energy-saving Lighting Design of the Underground Construction

2012 ◽  
Vol 1 ◽  
pp. 1 ◽  
Author(s):  
Fang Du ◽  
Yong Li ◽  
Feng Wu
Keyword(s):  
Energy Saving ◽  
Architectural Design ◽  
Indoor Environment ◽  
Lighting Design ◽  
Conduction System ◽  
Natural Light ◽  
Underground Space ◽  
Underground Construction ◽  
Artificial Lighting ◽  
Natural Lighting

There are often no windows and lack of natural light in the most of underground space, so lighting design is the most basic for most underground architectural design. Natural lighting is not only for comfortable indoor energy-saving and healthy light environment, but also for the good indoor environment. We need to use natural light and artificial lighting conduction system to offset the lack of natural light and improve the effect of underground space of natural light.

scholarly journals Modeling Natural Light Availability in Skyscraper Farms

Agronomy ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1684
Author(s):  
Michael Eaton ◽  
Kale Harbick ◽  
Timothy Shelford ◽  
Neil Mattson
Keyword(s):  
New York ◽  
Energy Consumption ◽  
Los Angeles ◽  
Light Availability ◽  
Electric Energy ◽  
Natural Light ◽  
Worst Case ◽  
Natural Lighting ◽  
Electric Energy Consumption ◽  
Canopy Area

Lighting is a major component of energy consumption in controlled environment agriculture (CEA) operations. Skyscraper farms (multilevel production in buildings with transparent glazing) have been proposed as alternatives to greenhouse or plant factories (opaque warehouses) to increase space-use efficiency while accessing some natural light. However, there are no previous models on natural light availability and distribution in skyscraper farms. This study employed climate-based daylight modeling software and the Typical Meteorological Year (TMY) dataset to investigate the effects of building geometry and context shading on the availability and spatial distribution of natural light in skyscraper farms in Los Angeles (LA) and New York City (NYC). Electric energy consumption for supplemental lighting in 20-storey skyscraper farms to reach a daily light integral target was calculated using simulation results. Natural lighting in our baseline skyscraper farms without surrounding buildings provides 13% and 15% of the light required to meet a target of 17 mol·m−2·day−1. More elongated buildings may meet up to 27% of the lighting requirements with natural light. However, shading from surrounding buildings can reduce available natural light considerably; in the worst case, natural light only supplies 5% of the lighting requirements. Overall, skyscraper farms require between 4 to 11 times more input for lighting than greenhouses per crop canopy area in the same location. We conclude that the accessibility of natural light in skyscraper farms in dense urban settings provides little advantage over plant factories.

scholarly journals The effects of natural light on measures of meat quality and adrenal responses to husbandry stressors in swine

1998 ◽  
Vol 78 (3) ◽  
pp. 293-300 ◽  
Author(s):  
Nigel J. Cook ◽  
John Chang ◽  
Robert Borg ◽  
Wayne Robertson ◽  
Allan L. Schaefer
Keyword(s):  
Meat Quality ◽  
Salivary Cortisol ◽  
Natural Light ◽  
Full Spectrum ◽  
Lighting Condition ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Lighting Conditions ◽  
Cortisol Levels ◽  
Major Factors

Two groups of pigs, born and housed under artificial and natural lighting, demonstrated increases in plasma and salivary cortisol levels at the time of weaning (day 24) and following handling and transport, indicating that these husbandry practices are stressful experiences for the animals. Piglets housed under natural light had a mean plasma cortisol response to weaning of 33.7%, compared with 47.9% for pigs in the artificial-lighting condition (P < 0.03). The relative percentage of eosinophils was reduced following weaning in both groups of pigs (P < 0.04). Salivary cortisol levels were significantly increased in response to handling and transport (P < 0.0001). Also, "basal" levels of salivary cortisol were lower in pigs exposed to natural lighting (P < 0.02) but no differences in the magnitude of the response to handling and transport were evident between different lighting conditions. Male pigs raised under artificial lighting had greater fat depth than those raised under natural light (P < 0.03) and a lower lean yield (P < 0.05). The longer photoperiod and full spectrum of natural light probably entrains the circadian rhythm of cortisol to an earlier clock time and are likely to be the major factors in differential cortisol concentrations between lighting conditions. Key words: Lighting, cortisol, saliva, pigs, stress, meat quality

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