Electrical and Technology

Solar green houses are the enclosures where crops, vegetables, flowers, and plants can be grown under unfriendly climatic conditions. The plant growth gets affected by availability of light, moisture, ambient temperature and carbon dioxide. It is possible to design enclosures which admits sunlight when it is desired and at same time controls inside temperature within acceptable range. Usually, solar greenhouse find application in cold areas where vegetation is damaged due to extreme low temperature. GREENHOUSE EFFECT:- It is only because of greenhouse effect that our life on Earth is possible to a great extent. Without natural greenhouse the Earth's surface temperature would be 33℃ cooler - a chilly - 18℃ rather than the tolerable 15℃. The natural greenhouse is due to naturally occurring greenhouse gases such as water vapor, carbon dioxide, methane and nitrous oxide. If this is so then you may be wondering why we are so afraid with greenhouse effect. The reason of our w

The visible and near visible (Ultra-Violet and near Infrared) electromagnetic radiation that is emitted by the Sun is termed as Solar Radiation . The solar radiation has a spectral or wavelength, distribution that corresponds to different energy levels, short wavelength radiation has a higher energy than long wave length radiation. These solar radiation convert into useful forms of energy such as "heat and electricity", using a variety of technologies. The technical feasibility and economical operation of these technologies at a specific location depends on the available solar radiation or solar resource. Photovoltaic Effect :- Photo-voltaics are the technology for conversion of solar radiation (sunlight) directly into electricity. A photo-voltaic cell also called a PV or a solar cell is the device used for this purpose. The PV technology has  emerged as a promising technology to generate electricity for small applications like lighting and meeting other electric