Artificial lighting comprises nearly one-third of the total electrical load of buildings, resulting
in significant carbon emissions. Reducing the carbon emissions caused by artificial lighting …

In a concerning global energy context, the construction industry must be able to respond
both in terms of energy management and the comfort of its buildings⿿ occupants. In this …

As an emerging passive daylighting technology, tubular daylight guidance systems (TDGSs)
are increasingly used in low-energy buildings. However, TDGS may become a thermal …

Light pipes transmit daylight into building interiors. Their installation into thermally insulated
roofs of low energy buildings can be a problem because of thermal bridges and …

Over the recent years, the energy use of artificial lighting has been gradually increasing in
office buildings. Tubular daylight guidance system (TDGS) is an innovative daylighting …

Light holds an important place in the way of life of humans. The first type of lighting which
could be exploited was daylight. Tubular Daylight Guidance Systems (TDGS) transport and …

This study investigates the properties of light transmission and distribution, examining how
incident light angles impact illuminance distribution and daylight factor. Light tubes are …

Abstract Zenithal Daylight Guides (ZDG) and Solar Water Heaters (SWH) are individual
energy-saving solutions utilized across diverse building types. This study proposes an …

Tubular light pipes (ie, solar tubes) are modern daylighting devices, which are designed to
let confined interior spaces benefit from natural lighting. In tropical country, the use of …

A light pipe prototype with a concentrating mirror parabolic head was tested for temperature
profiles. The purpose of the testing was to find maximal temperature and estimate potential …