منابع مشابه
Lighting programme and iranian schools lighting requirements
It is accepted that the visual comfort in schools depends on the quality of the whole visual environment. This leads to the concern upon the quality and quantity of lighting. Currently in Iran, in order to calculate energy transfer for public buildings a coefficient is usually used. This coefficient considers the rate of sunlight energy absorption in these kinds of buildings. To increase the ...
متن کاملThe $230-billion Global Lighting Energy Bill
This paper presents the first global estimate of lighting energy use, costs, and associated greenhouse-gas emissions. Based on a compilation of estimates for 41 countries representing approximately 63% of the world’s population, we develop a model for predicting lighting electricity use for other countries where data are lacking. The corresponding lighting-related electricity production for the...
متن کاملLighting an African School with Alternative Energy
1. Abstract Insufficient lighting is an issue in many poverty-stricken nations. Without proper electric lighting, residents of impoverished communities resort to using potentially hazardous light sources, such as kerosene lamps, candles, and car batteries used to light lightbulbs. Burkina Faso, located in western Africa, is one of the poorest nations in the world, with an annual per capita inco...
متن کاملClassroom Lighting Control Systems and Level of Energy Consumption, Tehran, Iran
Buildings play an important role in the energy demand sector. Due to the increase of environmentalconcerns and renewable energy sources restriction, lighting control systems will play an important role in the reductionof energy consumption of the lighting without impeding comfort goals. Lighting control systems can control lightingconsumption according to the type of building, adequate luminanc...
متن کاملLEDs for Energy Efficient Greenhouse Lighting
Light energy is an important factor for plant growth. In regions where the natural light source (solar radiation) is not sufficient for growth optimization, additional light sources are being used. Traditional light sources such as high pressure sodium lamps and other metal halide lamps are not very efficient and generate high radiant heat. Therefore, new sustainable solutions should be develop...
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ژورنال
عنوان ژورنال: Journal of the Illuminating Engineering Institute of Japan
سال: 1998
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij1980.82.10_798