Luminous Environment and the Perceived Environment

2019 ◽  
pp. 15-21
Author(s):  
Banu Manav
Keyword(s):  
Experimental Studies ◽  
Light Output ◽  
Lighting Design ◽  
Lighting System ◽  
Main Concept ◽  
Healthy Environment ◽  
Perceived Environment ◽  
Efficiency Cost ◽  
Lighting Systems ◽  
User Friendly

In lighting design, the main concept is to achieve a healthy environment, which addresses energy efficiency, cost, maintenance, and quality. User-friendly lighting systems shall be adopted to architecture and interior architecture. User control over the lighting system is important, by dimming or increasing light output, by changing the colour of the light sets the inner atmosphere and affects user mood. Standards and codes on lighting shall also be evaluated by means of these topics. The paper aims to analyse how the luminous environment is affective on the perceived environment. Hence, a series of experimental studies and recent research will be evaluated in regard to understanding and designing luminous environment.

Luminous Environment and the Perceived Environment

2019 ◽  
pp. 15-21
Author(s):  
Banu Manav
Keyword(s):  
Experimental Studies ◽  
Light Output ◽  
Lighting Design ◽  
Lighting System ◽  
Main Concept ◽  
Healthy Environment ◽  
Perceived Environment ◽  
Efficiency Cost ◽  
Lighting Systems ◽  
User Friendly

In lighting design, the main concept is to achieve a healthy environment, which addresses energy efficiency, cost, maintenance, and quality. User-friendly lighting systems shall be adopted to architecture and interior architecture. User control over the lighting system is important, by dimming or increasing light output, by changing the colour of the light sets the inner atmosphere and affects user mood. Standards and codes on lighting shall also be evaluated by means of these topics. The paper aims to analyse how the luminous environment is affective on the perceived environment. Hence, a series of experimental studies and recent research will be evaluated in regard to understanding and designing luminous environment.

An Overview of Energy Efficient Lighting System Design for Indoor Applications of an Office Building

2016 ◽  
Vol 692 ◽  
pp. 45-53 ◽  
Author(s):  
Proneel Mukherjee
Keyword(s):  
System Design ◽  
Energy Efficient ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Light Level ◽  
Lighting Design ◽  
Lighting System ◽  
Residential Group ◽  
Lighting Systems ◽  
The Aesthetic

Indoor Lighting design of different types of buildings is a very challenging and technology oriented work. Building lighting designing has specific rules and regulations and can be varied depending upon the designers choice. As per National Building Code of India, buildings can be classified according to the use or the character of occupancy in one of the nine groups. These are Group A_(Residential), Group B_(Educational), Group C_(Institutional),Group D_(Assembly ),Group E_(Business), Group F_(Mercantile), Group G_(Industrial) ,Group H_(Storage) and Group J_(Hazardous) types of buildings. With the reduction of energy consumption, there should not be any sacrifice in quality and quantity of light required as per the lighting codes. The shortage of Electrical energy is increasing gradually. As it is the energy source of lighting, the lighting designers should be more concerned about energy efficient lighting system design. LED consumes less power than the conventional luminaires & maintains almost the same lighting level. So, lighting designers are using LED luminaires into their designs now a days. Also, renewable energy sources driven lighting systems should be used. It will be environmental friendly also. A proper lighting design requires consideration of the amount of functional light level provided, the energy consumed and the aesthetic effect supplied by the lighting system. The electrical lighting systems should also consider the impacts of, and ideally be integrated with, daylighting systems. Building lighting design focuses on three fundamental aspects of the illumination of buildings or spaces. The first is the aesthetic appeal of a building. Secondly, the ergonomic aspect: the measure of how much of a function the lighting can achieve. Thirdly is the energy efficiency issue to ensure that light is not wasted by over-illumination, light pollution, by illuminating vacant spaces unnecessarily or by providing more light than needed for the aesthetics or the task.

scholarly journals Design of Solar Transmission System using Fiber Optic for Indoor Lighting

KnE Energy ◽  
2015 ◽  
Vol 2 (2) ◽  
pp. 59 ◽  
Author(s):  
Elita Fidiya Nugrahani ◽  
Reza Arraffi Birahmatika ◽  
Epri Wahyu Pratiwi ◽  
Sekartedjo K
Keyword(s):  
Optical Fiber ◽  
Focal Point ◽  
Light Output ◽  
Lighting System ◽  
Output Intensity ◽  
Final Project ◽  
Collector System ◽  
Solar Lighting ◽  
Lighting Systems ◽  
Parabolic Collector

<p>Transmission of fiber solar lighting system is a lighting system using sunlight as a source. The system consists of two main components, there are: solar collectors and optical fiber. Solar collector is used to collect and focus sunlight into the focal point. Sunlight that received by collector is transmitted by optical fiber into the room, primarily through efficiency of the collector system. In this final project, we designed the transmission systems via optical fiber for lighting on the Photonics Laboratory ITS. Transmission of solar lighting systems used parabolic collector as a major collector and end glow plastic optical fiber as the transmission with length of 50m. There are four types of collector systems were designed, i.e. parabolic, parabolic with flat mirrors, parabolic with pyramid and parabolic with a cone. Characterization system consists of measuring reflectance values, the output intensity of the optical fiber, and the intensity light distribution in the room. The results of measurements of the reflectance (R) collector surface with paint gray and silver are 0.225 and 0.475, respectively. In the measurement light output intensity of the optical fiber with variation types of collector systems, it is obtained that the highest value from the combination of parabolic collector with a cone. Distribution of light output from the optical fiber in the room was also calculated and measured. </p><p><strong>Keywords</strong>: collector; optical fiber; solar lighting</p>

scholarly journals A novel lighting design system in Masoumeh with an approach to improving technical and economic conditions

2020 ◽  
Vol 18 (4) ◽  
pp. 161-168
Author(s):  
Rohollah Abdollahi ◽  
Mohammad Hossein Aref
Keyword(s):  
Energy Consumption ◽  
Lighting Design ◽  
Economic Conditions ◽  
Design System ◽  
Lighting System ◽  
Sacred Places ◽  
Technical Indicators ◽  
Proper Design ◽  
Simulation Results ◽  
Lighting Systems

Islamic countries have many sacred places that represent the culture, identity, and civilization of them. One of the most important tools that can improve the design and architecture of these places is the proper design of lighting systems. Using simulation results in DIALux Evo software and comparing them with lighting standards, technical and operational disadvantages of the current scheme were identified. In this paper, we propose alternative lighting schemes for the courtyard of the Holy Shrine of MASOUMEH considering standards of lighting systems and related international experiences in order to eliminate disadvantages in the current lighting system and to reduce and optimize energy consumption. The results show that proposed alternative schemes not only satisfy technical indicators and standard lighting values but also save the number of lights, the amount of energy consumption, and corresponding costs.

Light Dramaturgy as an Element of an Integrated Approach to the Creation of Museum Expositions and Exhibition Projects

2019 ◽  
pp. 108-114
Author(s):  
Nicolay R. Vorobyov
Keyword(s):  
Final Stage ◽  
Historical Development ◽  
Integrated Approach ◽  
Lighting Design ◽  
Lighting System ◽  
Scientific Concepts ◽  
Hands On ◽  
Artistic Styles ◽  
The Creation

Architectural and artistic construction of museum is one of the most complex genres in environment development and design, with its inherent qualities, means of expressiveness, principles of environment and image development, scientific concepts, in the context of historical development, artistic styles and trends. The author of the article considers the artistic lighting design in isolation from the integral dramaturgy of the project to be deeply flawed, and the setting of accent lighting at the final stage Ц to be simple, but not outstanding. Based on extensive hands-on experience in the construction of museum expositions, the author of the article reveals some peculiarities, especially significant to the participants of the lighting system setting for museums and other cultural facilities.

scholarly journals A Supervisory Control Strategy for Improving Energy Efficiency of Artificial Lighting Systems in Greenhouses

Energies ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 202
Author(s):  
Gianluca Serale ◽  
Luca Gnoli ◽  
Emanuele Giraudo ◽  
Enrico Fabrizio
Keyword(s):  
Control Strategy ◽  
Light Emitting Diode ◽  
Cost Savings ◽  
Energy Performance ◽  
Lighting System ◽  
Light Emitting ◽  
Artificial Lighting ◽  
Lighting Control ◽  
Lighting Systems ◽  
Power Densities

Artificial lighting systems are used in commercial greenhouses to ensure year-round yields. Current Light Emitting Diode (LED) technologies improved the system efficiency. Nevertheless, having artificial lighting systems extended for hectares with power densities over 50W/m2 causes energy and power demand of greenhouses to be really significant. The present paper introduces an innovative supervisory and predictive control strategy to optimize the energy performance of the artificial lights of greenhouses. The controller has been implemented in a multi-span plastic greenhouse located in North Italy. The proposed control strategy has been tested on a greenhouse of 1 hectare with a lighting system with a nominal power density of 50 Wm−2 requiring an overall power supply of 1 MW for a period of 80 days. The results have been compared with the data coming from another greenhouse of 1 hectare in the same conditions implementing a state-of-the-art strategy for artificial lighting control. Results outlines that potential 19.4% cost savings are achievable. Moreover, the algorithm can be used to transform the greenhouse in a viable source of energy flexibility for grid reliability.

A field study of fluorescent and LED classroom lighting

2016 ◽  
Vol 50 (4) ◽  
pp. 631-650 ◽  
Author(s):  
N Gentile ◽  
T Goven ◽  
T Laike ◽  
K Sjoberg
Keyword(s):  
Secondary School ◽  
Field Study ◽  
Energy Savings ◽  
Electricity Consumption ◽  
Visual Comfort ◽  
Lighting System ◽  
Upper Secondary ◽  
Lighting Systems ◽  
Indoor Lighting ◽  
Academic Year

Indoor lighting is facing a massive retrofit to LED lighting. Research is needed to assess whether LED-based lighting can promote energy efficiency, boost visual comfort and support biological functions. This field study considered the lighting of four identical classrooms in an upper secondary school in Helsingborg, Sweden. Two classrooms were fitted with state-of-the-art ceiling pendants containing T5 fluorescent tubes and that had a direct/indirect light distribution (the control rooms). The other two classrooms were fitted with an experimental LED indirect lighting system (the experimental rooms). In the classrooms, 72 students aged 17–18 years performed their usual educational activities over a whole academic year. The light environment, electricity consumption, and students’ mood, light perception and saliva cortisol concentration were monitored. The two lighting systems produced only marginal differences. Overall, the experimental rooms were slightly preferred but achieved only small energy savings due to high parasitic losses.

scholarly journals Design Lighting Quality Based on DIALux Evo 8.1

2019 ◽  
Vol 2 (2) ◽  
pp. 42
Author(s):  
R. Febriyursandi ◽  
A.Z. Azryenni ◽  
A. Hamzah
Keyword(s):  
Direct Measurement ◽  
Boarding School ◽  
Lighting System ◽  
Class A ◽  
Measurement Results ◽  
The Difference ◽  
Lighting Systems

This research develops and implements methods for calculating lighting systems for classrooms in the Khairul Ummah Boarding School. The lumen is used to determine the number of luminaires needed to improve lighting quality following SNI 6197:2011. The number of luminaires obtained from this study was entered into the DIALux Evo 8.1 software. The results obtained of this study indicate that the lighting in the classroom at Khairul Ummah Boarding School didn’t reach the recommended standard, the direct measurement results of the average lighting level of class A was 10.79 lux, while the class X-IPA-3 was 11.66 lux. To improve this condition, class A requires 15 luminaires, and X-IPA-3 requires 12 luminaires. The difference in the results obtained from the two calculations for class A is 0.6%, and X-IPA-3 is 3.4%. Investment costs are needed to improve the lighting system in these classes worth Rp.2,700,000.00 to provide 27 lamps.

scholarly journals Energy Efficient Lighting Design Criteria: Cost-Effective Solutions in an Industrial Environment

2007 ◽  
Author(s):  
Frank J. Agraz ◽  
John Maneri
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Return On Investment ◽  
Energy Savings ◽  
Cost Effective ◽  
Lighting Design ◽  
Design Criteria ◽  
Lighting System ◽  
Light Levels

The continual rising cost of energy, existing outdated lighting technology, and inefficient lighting designs have given property owners the opportunity to improve their facilities by retrofitting their existing luminaires with an energy efficient lighting system. A lighting retrofit uses the existing electrical infrastructure to replace, relocate, or convert existing luminaires with the latest generation of cost-effective components. New lighting technology has emerged within the last 6 years that generates energy savings of 40% to 50% while maintaining existing light levels. These upgraded and field-tested solutions lower energy consumption, generate a healthy financial return on investment, and can improve both the quality and quantity of light in the task area. As with any other solution, a cost-effective lighting system must be designed and engineered carefully to accommodate the needs of each work space. Simply installing a new lamp into an existing luminaire will not necessarily guarantee substantial energy savings or an improved lighting environment. In any space that uses electric lighting, the lighting designer must evaluate potential solutions for energy consumption, maintenance concerns, delivered light levels, hostile environments, and the overall economic impact of installing and long-term operation of the new system. In this paper, the author will discuss energy efficient lighting design criteria and how a lighting designer properly engineers a retrofit project to deliver energy savings without sacrificing light levels. The discussion includes a summary of both traditional and emerging technologies, and the long-term impact on energy consumption, maintenance, return on investment, lighting quality, and delivered light levels. Paper published with permission.

scholarly journals An approach to energy efficient lighting design for economic residential flats

2021 ◽  
Vol 850 (1) ◽  
pp. 012013
Author(s):  
Subhasish Das ◽  
Anubrata Mondal ◽  
Kamalika Ghosh
Keyword(s):  
Power Consumption ◽  
Energy Saving ◽  
Energy Efficient ◽  
Residential Building ◽  
Light Level ◽  
Lighting Design ◽  
Wide Range ◽  
Standard Values ◽  
Lighting Systems

Abstract The lighting design in a residential building now-a-days is not only limited to general lighting but also it is focused to provide quality lighting with the help of wide range of available luminaire with different orientations as well as colours with efficient use of energy, that opens up accurate characteristics of specific areas in any room of the building. The affordable housings in many states are some of the examples of residential building where most of the flats in a typical floor are using conventional lighting systems which are not energy efficient and light level is low compared to standards. This paper is mainly focused to provide a budget friendly as well as energy efficient lighting design with the help of new and energy efficient lamps using DIALux Software, which can be proposed to renovate the existing conventional lighting systems. In this paper effort has been made to reduce the power consumption in all rooms and lux levels has been achieved as per standard values along with good amount of energy saving with the use of newer technologies.

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