Solar green house-Review

In fact, all forms of energy on the earth are derived from the sun. Sun's energy has been used by nature and man throughout the time to grow food, to see by, to get suntan. Solar energy can be widely used in many applications such as air heating, water heating, cooling, refrigeration, solar thermal power, solar photovoltaic's etc. In the present context, study is emphasized on solar green house especially. There are several variables outside and inside the green house which influence the thermal environment of green house and increase the crop yield. In the green house, parameters such as radiation intensities, green house temperature, soil temperature, relative humidity can be measured. Emphasized is given on required parameters for the growth of plants. An attempt has been made to study on how solar green house can be designed in summer or winter season. Solar green house are used for growing particular vegetables and flowers throughout the year provided light and temperature in the green house is controlled. Thus, advantage of solar green house techniques is lower operating cost, easy to install and economically viable. Many innovative ideas have been incorporated into green house design. Both active and passive methods are used for meeting energy demands of green house.