Largest Solar Cooking System commences in Shirdi
Thursday, July 30, 2009 0 comments
Its not often that you come across such events happening in India. But a new solar cooking system being inaugrated at the Sri Saibaba Sansthan Trust in the famous Saibaba temple at Shirdi to cater to almost 30,000 devotees who visit the temple every day. The new prasadalaya' is spread over 7.5 acres of land in which 5,000 devotees can be served food at the same time.
Technical process -
They reflect and concentrate the solar rays on the 40 receivers placed in focus. Water coming from the steam headers placed above the header centres is received from bottom of the receiver, gets heated up to due to heat generated (about 5500C) due to concentration of solar rays on the receivers and get pushed up via top pipe of receiver into the header. The principle of anything that gets heated is pushed up is called thermo-siphon principle. The advantage of thermosiphon principle is no pumping (thus no electricity) is needed to create circulation since the heated water is pushed into the header and water from the same headers come into the receivers for heating. The cycle continues till it reaches 1000C and gets converted into steam.
The header is only filled and thus steam generated gets accumulated in the upper half of the steam header. The temperature and pressure of steam generated keeps on increasing and heat is stored till the steam is drawn for cooking into the kitchen.All the 40 dishes rotate continuously along with the movement of the sun, always concentrating the solar rays on the receivers. This movement of concentrators is called tracking, which is continuous and is controlled by the fully automatic timer mechanism.
Only once during the day i.e. in the early morning the dishes have to be turned manually onto the morning position, subsequently the automatic tracking takes over.
Considering the fuel expenses and to avoid pollution, the trust has installed the automatic solar energy system worth Rs 1.33 crore. A subsidy of Rs 58.4 lakh was sanctioned by the Union ministry of non-conventional energy for the project which will help save around 74 metric tonne of LPG worth approximately Rs 29.80 lakh. Earlier, the trust had installed two windmills for electricity generation at Supe in Ahmednagar district.
The Solar Company:
Gadhia Solar, a global player in thermal energy systems has manufactured and commissioned this project which is possibly the worlds largest solar parabolic concentrated technology systems. The newly upgraded system now installed at Saibaba Sansthan would cook 50,000 meals per day. It took the company seven months to install and commission the system, which would have 25 years of life. The company has also other plans to enter in Solar Energy space in India. Few announced projects are:
Capacity and Technology
100 MW - Solar concentrated thermal plant
Cancer hospital in Gujarat
100-tonne - Solar concentrated air-conditioning project
Nagpur- Lathur area, Maharshtra
1 to 1.5 MW - Steam-based solar thermal power system
IBM office in Bangalore
Solar air-conditioning system
The company provides different applications like concentrated solar thermal power packs from 1KW to 100MW, concentrated solar air-conditioning and heating systems, concentrated solar process heat for systems for various industrial applications. The company also undertakes concentrated solar waste water evaporation systems, concentrated solar desalination systems, concentrated solar space heating systems and concentrated solar drying systems to cater to industrial needs. (Source: Indian Express, Times of India)
I hope that many more systems come up soon and companies like Gadhia becomes one of the most respected and profitable companies as such companies are working towards making the world a place to live.Read the full story