1. Describe the environmental aspects of non-conventional energy resources. In Comparison with various conventional energy systems, their prospects and limitations. 2. Know the need of renewable energy resources, historical and latest developments. 3. Describe the use of solar energy and the various components used in the energy production with respect to applications like - heating, cooling, desalination, power generation, drying, cooking etc. 4. Appreciate the need of Wind Energy and the various components used in energy generation and know the classifications. 5. Understand the concept of Biomass energy resources and their classification, types of biogas Plants- applications 6. Compare Solar, Wind and bio energy systems, their prospects, Advantages and limitations.
Irrecoverable rapid depletion of petroleum reserves, high price fluctuations, uncertainty in supply to consuming nations, high expenditure on fuel import, harmful effects of various exhaust emission on the human being and environment sorces to search for alternative fuels that they themselves can produce. These alternative fuels should be preferably available from renewable sources. Therefore, attention is mainly focused towards biomass- based fuels. Alternative considered are ethanol, methanol, biogas and vegetable oil, methyl or ethyl ester of vegetable oil (biodiesel).Karanja bio-diesel production should be improved according to higher environmental impacts than the conventional diesel fuel from life cycle aspects.
Today energy consumption and demand are growing up all over the world and most of the resources used like petroleum, natural gas, coal are not sustainable sources of energy. The combustion of these traditional energy sources creates greenhouse gases which causes global warming. The problems arising from non sustainable use of energy sources have led to increased awareness and widespread research on the accessibility of new and renewable energy resources and technologies. Biogas is one of the most efficient and effective options among the various other alternative sources of renewable energy especially for developing country like Ethiopia. This green energy technology have great contribution in economic, social, health and environmental aspects of the society which are pillars of sustainable development. Despite of its numerous advantages, the potential of biogas technology could not be fully harnessed due to various characteristics of substrates used for biogas production. Researchers have tried different techniques to enhance biogas production from various types of substrates and these techniques are reviewed in this book.
Animal wastes are a significant environmental concern in countries such as Ireland, where meatproduction activities are an important sector of the national economy. The purpose of this work is to develop a decision support system (DSS) for policy makers to evaluate technical, economic and environmental aspects of anaerobic digestion development in Ireland. The approach involves the production of a livestock and abattoir nationaldatabase and the development of an algorithmic data-model which allows estimation of the biogas potentialproduction in a given area. This algorithmic approach is supported by a technical, economic and environmental analysis of the technology. Part of the model is a site selection model that helps identify suitable areas for anaerobicdigestion plants. The aim is the proposal of a successful method of animal waste management matched with biogas production for means of transport.
Energy crisis has become one of the most concerning issues throughout the world including emerging developing country like Bangladesh. Scientific community has unequivocally agreed that renewable energy is the only solution to face this challenge. A number of researches on renewable energy (e.g., solar, wind, hydor energy & biogas) have been carried out in Bangladesh. So far, biogas and solar energy has been proved to be the best alternative to meet the daily energy demand. However, Bangladesh could achieve more success with biogas in rural areas if socioeconomic, technical and regulatory issues were addressed appropriately. This study analyzed not only these factors but also (i) the present situation of the biogas production, (ii) ways to improve the efficiency and economic benefits of small-scale or farm-scale biogas production, (iii) existing problem associated with small-scale/farms-scale biogas production, (iv) reason behind not using and not using of biogas by the people nearby the user of biogas, (v) economic benefits of small biogas plants and (vi) the ways to improve efficiency by intervening feed stock quality and composition of the small-scale/farms-scale biogas plants.
This book presents the state of the art in biogas production using anaerobic digestion technology, with an emphasis on waste utilization/valorization. Offering a comprehensive reference guide to biogas production from different waste streams, it covers various aspects of anaerobic digestion technology from the basics, i.e., microbiological aspects to prominent parameters governing biogas production systems, as well as major principles of their operation, analysis, process control, and troubleshooting. Written and edited by internationally recognized experts in the field of biogas production from both academia and industry, it provides in-depth and cutting-edge information on central developments in the field. In addition, it discusses and reviews major issues affecting biogas production, including the type of feedstock, pretreatment techniques, production systems, design and fabrication of biogas plants, as well as biogas purification and upgrading technologies. 'Biogas: Fundamentals, Process, and Operation' also addresses the application of advanced environmental and energy evaluation tools including life cycle assessment (LCA), exergy, techno-economics, and modeling techniques.
The main objective of the study is to assess the contribution of dairy farming on rural livelihood. In Nepalese context, dairy farming is one of the most appropriate and viable alternatives, which can provide food in terms of milk and meat, income earning and energy generation in terms of biogas at the household level. In this study following issues were clearly examined and analyzed, Crop and dairy farming and their production in Nepal. Milk yield of individual dairy cow. Role of Cooperative dairying in dairy production at the household level. Role of dairy animal as a source of energy Livelihood strategies being practiced by the farmers in order to maintain their livelihood. I hope this study is helpful for students, researchers, teachers and all those who are doing research, especially on various socio-economic aspects.