Hyperbaric Chamber Lighting

Internal electrical systems have been the cause of some very serious accidents in hyperbaric chambers. This paper describes a new “light pipe” system which can be installed in a very small opening in the vessel wall. Most of the IR energy is intercepted before the light enters the chamber resulting in a cool light source, simple to install and maintain. A description of the system is presented along with performance for several light pipe configurations.

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Daylight and Energy Performance of a Light Pipe System in an Underground Carpark

Proceedings of the Thirteenth International Conference on Civil, Structural and Environmental Engineering Computing ◽

10.4203/ccp.96.39 ◽

2011 ◽

Author(s):

J.Y. Shin ◽

G.Y. Yun ◽

J.T. Kim

Keyword(s):

Energy Performance ◽

Pipe System ◽

Light Pipe

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Experimental Study of Tubular Light Pipe System: Influence of Light Reflector on Its Performance

Transition Towards 100% Renewable Energy - Innovative Renewable Energy ◽

10.1007/978-3-319-69844-1_3 ◽

2018 ◽

pp. 21-30 ◽

Cited By ~ 1

Author(s):

Abdus Salam Azad ◽

Dibakar Rakshit

Keyword(s):

Experimental Study ◽

Pipe System ◽

Light Pipe

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Monitoring of a small top lighting solar light pipe system

10.1117/12.838185 ◽

2009 ◽

Author(s):

Yanpeng Wu ◽

Zhiyou Yue ◽

Rendong Jin ◽

Li Liu

Keyword(s):

Solar Light ◽

Pipe System ◽

Light Pipe

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Energy saving potential of tubular light pipe system with different colors on internal surfaces

International Journal of Energy Sector Management ◽

10.1108/ijesm-12-2018-0001 ◽

2019 ◽

Vol 14 (4) ◽

pp. 793-837

Author(s):

Abdus Salam Azad ◽

Mohd Salman ◽

S.C. Kaushik ◽

Dibakar Rakshit

Keyword(s):

Prediction Models ◽

Residential Buildings ◽

Mean Bias Error ◽

Bias Error ◽

New Delhi ◽

Content Type ◽

Pipe System ◽

Solar Altitude ◽

Light Pipe ◽

Different Seasons

Purpose Lighting in building sectors (consumes the highest energy in commercial buildings and the second highest in residential buildings in India) has very much potential for energy conservation in buildings. With the use of daylighting system, energy consumption in lighting can be lowered up to 30 to 40 per cent. Design/methodology/approach An experimental effort has been made in this paper to explore the internal wall coloring effect on the performance of tubular light pipe. Trace-pro software has been used and validated. With the help of this software, light pipe has been designed and simulated in a ray tracing mode. Assessment of four globally used prediction models has also been conducted to compare the performances in different seasons for light pipes in the composite climate of New Delhi. Findings It has been conducted based on three statistical indicators as mean bias error, root mean square error and R2. Using regression, an empirical model for average internal illuminance has been developed as a function of light reflectance value (LRV) and solar altitude angle. Trace-pro results confirmed that maximum internal illuminance can be obtained with wall surfaces coated with high LRV color. Finally, by using of a single light pipe system for a test room with the artificial lighting system and applying continuous dimming control, the amount of electrical energy has been saved up to 38.5 per cent per year. Originality/value After going through the literature, it has been identified that there has been no paper published which explores the effect of colors of the internal walls on the performance of the light pipe. Along with this, the comparison between existing empirical performance models and find out which model gives the best result in different seasons has been carried out for New Delhi, India.

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