12-14 September, 2011, Lucknow - Earth Science India

More documents

Recommendations

Info

National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow up. Suitable sites for renewable energy installations were identified through resource assessment, fiscal and financial incentives were announced, policies conducive to private participation were put in place. As a result, renewable energy in India has made a noteworthy progress with its definite contribution in the energy technology portfolio of the country. To day, the total installed grid interactive renewable power generating capacity stands at around 20 GW. This constitutes 11% of the total power generating capacity in the country. The Jawaharlal Nehru Solar Mission being implemented by the Government is an important initiative. Within one year, the achievements made under the Mission have attracted attention world over. Apart from grid interactive power, the contribution of decentralized renewable energy systems like photovoltaic (PV) lighting systems, small PV power plants, solar pumps, water heating systems, biogas plants, biomass gasifiers is not only significant in terms of energy generation and savings but also because of the impact these could create in the society. Potential of various renewable energy technologies in the country has been estimated based on the state of technology currently available. However, for harnessing this potential, still there are constraints in terms of low capacity utilization factor, high initial investment, problems in energy storage and balance of systems, load management, maintenance etc. Eventually renewable energy technologies will have to compete with their conventional counterparts in terms of quality, reliability and cost. It is therefore required to realign our strategies on R&D, technology development, management, industrial production, financial & fiscal incentives, policies in such a way that larger share of renewable energy can be achieved in shorter period with concomitant environmental benefits. PHOTOSYNTHETIC EFFICIENCY TO CONVERT SOLAR ENERGY: LESSONS TO LEARN FROM NATURE Madhumita Banerjee and Bibek Bandyopadhyay Department of Botany, Ramjas College, University of Delhi, Delhi 110007 Solar Energy Centre, Ministry of New and Renewable Energy, Lodi Road, New Delhi 110003 Email: madhumita01@gmail.com, bbibek@nic.in Photosynthesis is the fundamental biological process that converts the electromagnetic energy of solar radiation into stored biomass energy. Over millions of years, nature evolved this phenomenon to harness the energy from sun. It is a very complex process that involves a series of reactions starting with the splitting of water molecules into molecular oxygen, protons and electrons, followed by a chain of electron transfer reactions resulting in the production of chemical energy used in cell metabolism. 70
National Conference on Science of Climate Change and Earth’s Sustainability: Issues and Challenges ‘A Scientist-People Partnership’ 12-14 September, 2011, Lucknow Chlorophyll is a prime component of this process. It captures the energy of sunlight and allows this energy to power the complex chemical reactions inside the plant. The transfer of energy from light-harvesting Chlorophylls to the reaction centres that have been intelligently crafted by nature is a highly efficient process. However, the actual percentage of solar energy ultimately stored by plants in the form of biomass is very less, and therefore, the overall photosynthetic efficiency is low. There are a number of intermediary steps that work in tandem to produce the resultant biomass. It is necessary to revisit this path that nature has built and perfected over a long time and to understand the process to learn a few lessons. In this paper the efficiency of photosynthesis has been discussed in analogy to other solar energy conversion processes that are being developed today in search of sustainable sources of energy. CLIMATE CHANGE AND INDIAN TELECOMMUNICATION SECTOR C.S. Azad Bharat Sanchar Nigam Ltd., Ghaziabad. email: csazad68@gmail.com With increasing pervasiveness of mobile phones and the widespread adoption of Information and Communications Technology (ICT) worldwide, the ICT sector is expected to contribute around 3% of the global emissions of greenhouse gases (GHG) by the year 2020. While globally the telecommunication sector contributes around 0.7% of the global GHG emissions, the corresponding figure in India is 1%.The main contributing sectors within the ICT industry include the energy requirements of PCs and monitors (40%), data centres about 23% and fixed and mobile telecommunications contribute about 24% of the total emissions. The telecommunication sector can help in climate change mitigation by reducing the sector's energy requirements, using renewable energy sources and providing technology to implement and monitor reductions in other sectors of the economy. This paper discusses the approach of Indian telecommunication service providers to the climate change by efficient power management, infrastructure sharing, use of ecofriendly renewable energy sources and cutting down carbon emission. 71
Page 2 and 3:
National Conference on Science of C
Page 4 and 5:
Page 6 and 7:
Page 8 and 9:
Page 10 and 11:
Page 12 and 13:
Page 15 and 16:
Page 17 and 18:
Page 19 and 20:
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34: National Conference on Science of C
Page 83: National Conference on Science of C
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149:
Page 152 and 153:
show all

12-14 September, 2011, Lucknow - Earth Science India

Create successful ePaper yourself

Delete template?

Save as template?