Directing sun light with the help of reflecting material into photo voltaic cells and then generating electricity for use in lighting and heating small apartments is a green craze of modern world. With better heat insulation properties and more flexibilities solar tubes have become common feature for eco friendly homes and commercial establishments. They save inhabitants from bad effects of conventional systems such as over heating of room, illumination effects and thus improve their health.
Solar light tubes are manufactured in dome shape to avoid harmful ultraviolet rays fading carpet, furniture and other colorful objects in the premises. They admit green natural light in dark rooms, giving slow heating and thus hereby reducing cost of electricity in lighting and air-conditioning.
Solar heating tubes are in use for heating water with sun light. In almost all modern appliances solar vacuum tubes or solar evacuated tubes are used.
Manufacturing firms produce a number of products utilizing sunlight available in abundance. Solar evacuated tubes are used for heating of water. Their high efficiency and affordability has forced people to use them in homes and small organizations such as guest houses and hotels as alternate to electric appliances. They help in reducing carbon di oxide emission by approximately 3 ton per year which is equivalent to emission of a small car.
Solar evacuated tubes are basically twin tubes. Outer tube is made up of transparent material and allows sunlight to fall on inner tube made up of a black body material with zero reflection properties. Usually outer tube is of glass. As per recent practices now a days twin glass tubes are chosen for reliable performance and cost effectiveness.
Vacuum between the glass tubes in solar water heater tubes prevent convection and conduction heat losses, thus achieving greater efficiency. To with stand high pressure and temperature these glass tubes are of borosilicate glass. Inner tube is coated with Aluminum Nitride which allows no reflection and hereby absorbs all sunlight falling on it. The vacuum between the two tubes is sealed on the top.
While selecting a vacuum tube emphasis should be on its cost effectiveness, low thermal heat loss, high vacuum with long term stability, high pressure resistance, fast start up, reliability and durability. Consumers must check their specifications before taking any decision.
Solar appliances are flooded in market. Although they are slightly costlier than conventional electrical equipments but their nature friendly specialties are boons to society. In remote areas where supply of electricity is still a dream, these appliances are must for living beings. Emphasis should be made by manufacturing firms to trap such virgin areas which exist in almost all the nations of world.
Sites on world wide net list their products for everyone and for every pocket. Their innovative ideas improve the product to consumer satisfaction. Specific requirement of individuals can be examined and implemented with the help of concerning firms. Design of water heating systems, lighting systems of homes and establishments can be booked on line on preferred site.