Tampilkan postingan dengan label Teknologi. Tampilkan semua postingan
Tampilkan postingan dengan label Teknologi. Tampilkan semua postingan

Rabu, 16 Mei 2012

Energi Matahari Populerkan Era Plastik di Bumi



Headline
Ilmuwan kembangkan plastik photovoltaics yang lebih murah dan ringan dibandingkan silikon. Ini menandai revolusi perangkat pendukung energi tata surya. Seperti apa?
“Plastik jauh lebih murah untuk diproses dibandingkan silikon. Pada prinsipnya, perangkat ini akan berharga lebih murah dan mencakup area yang sangat luas,” ujar David Lidzey dari University of Sheffield, Inggris.
Tak seperti panel silikon yang kaku, plastik photovoltaics jauh lebih fleksibel sehingga mudah untuk dipasang. Jika masyarakat memanfaatkan panel gulung seperti lebaran kertas dinding maka materi ini dapat dimanfaatkan pula di negara berkembang.
Polimer panel surya ini berbeda dengan plastik komersial lain seperti polythene yang bersifat isolator.
“Kami mengubah plastik dari materi yang mencegah proses konduktivitas menjadi sesuatu yang mampu mendukung kimia dengan struktur molekul baru,” ujar Lidzey.
Sederhananya, plastik yang digunakan sebagian besar penduduk saat ini berbeda dengan materi photovoltaics.
Ilmuwan berharap plastik ini dapat digunakan di sebagian besar produk teknologi untuk menyerap tenaga surya sehingga menghemat sumber daya alam tak terbarukan.

Minggu, 18 Desember 2011

Infrared Heaters

Tips on Buying an Infrared Heater for Your Home

 

Due to the practical advantages of an infrared heater, it is fast becoming the heater of choice in many homes. This type of heater makes use of electromagnetic radiation when transferring energy or heat to a body or object of lower temperature. The heat produced is more concentrated and direct as it hits people, objects, and surface areas in a room.
How do infrared heaters work?
Compared to most types of standard heaters, an infrared heater does not work by heating the air in a room. This heater produces heat and directs this heat to people and objects found in the room, which results in faster heating. With traditional heaters, the heating effect is achieved by warming the air first. This process can be time-consuming and even expensive. Since heating takes time, more fuel is also consumed. An infrared heating device on the other hand heats up another body - objects, surfaces, people - directly. A few minutes after turning the heater on, you will be able to enjoy the warmth almost instantly.
How safe is an infrared heater?
These types of home heaters are one of the safest around since the heating elements are completely covered without compromising heating efficiency. The heating elements, which are responsible in emitting heat, are covered with copper, brass, steel or any other type of metal. Moreover the body of the heater is secured in a case and kept cool by a fan that also helps prevent overheating. This makes the heater safe to have around the home, even in rooms where there are children and pets.
Efficient and eco-friendly
Fuel powered home heaters normally work through combustion, which may emit harmful gases into the environment. Because infrared heaters do not go through the combustion process to create warmth, they are a cleaner, environmentally-friendly choice. People who are prone to dust allergies may also benefit from infrared heating. Unlike air heating systems that emit dust all over the room, these heaters deliver warmed, cleaner air, and doesn't make use of fuels or emit combustion gases. Their ability to convert energy to heat also means you are getting a highly efficient home heating device. Many households are able to cut down on their electricity expenses significantly by using an infrared heater.
The Howard Berger infrared heater is a safe, efficient, and easy to use heater choice for the home. It comes with a remote control for easy manipulation and also features a backlit LCD display, washable air filter, and safety cut-off switch. Its whisper quiet operation ensures you efficient heating results without the unnecessary background noise, resulting in faster and even heating from day to night.