Fossil Energy Articles
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Saint-Vincent Hospital, Ottawa, Ontario, Canada
Boiler/Cogen Heat/Energy Recovery Application Thermal Energy installed designed and implemented an integrated FLU-ACE heat recovery system with cogeneration unit for efficient electrical power generation and an overall reduction in energy consumption. The installation consists of a natural gas fueled engine with a 425 kW generator, waste heat boiler, and FLU-ACE system processing combined flue ...
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Carbonation of concrete containing mineral admixture in normal indoor environment
The carbonation depth of concrete containing mineral admixture exposed in normal indoor environment after different moistly curing ages has been measured at different ages. The relationship among carbonation of concrete and several influencing factors, such as moistly curing ages before carbonation, water-binder ratio, kinds of mineral admixture, fly ash-slag mixing ratio and replacing ...
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IEA commends Italy on progress in energy policy but cautions that further long-term challenges remain
“Significant recent changes in Italy’s energy legislation provide the country with new opportunities to build on past successes”, said Nobuo Tanaka, Executive Director of the International Energy Agency (IEA) today in Rome at the launch of Energy Policies of IEA Countries – Italy 2009 Review. He highlighted that over the past five years, the Italian government had gone a long way towards ...
By IEA
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Biochar application to soils - a critical scientific review of effects on soil properties, processes and functions
EXECUTIVE SUMMARYBiochar application to soils is being considered as a means to sequester carbon (C) while concurrently improving soil functions. The main focus of this report is providing a critical scientific review of the current state of knowledge regarding the effects of biochar application to soils on soil properties, processes and functions. Wider issues, including atmospheric emissions ...
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Investment decisions for baseload power plants
Executive Summary This six-volume report is designed to provide a detailed understanding of the key drivers and processes that affect private entities in the United States (U.S.) as they consider investing in baseload generation capacity. The report was prepared by ICF International at the request of the National Energy Technology Laboratory (NETL). Volume I of this report identifies the key ...
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Exergy analysis of a combined fuel cell and Gas Turbine Power Plant with intercooling and reheating
This paper presents a comparative exergy study of the performance of various gas turbine power generation plants and a high temperature Solid Oxide Fuel Cell (SOFC). The overall system is analysed and its exergy efficiency and exergy destruction are obtained, as well as individual models of each component. The results for selected operating conditions are compared against past literature data. ...
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Consumption analysis of Solid Oxide Fuel Cells
The characteristics of the Solid Oxide Fuel Cell (SOFC) were introduced. The SOFC system can be divided into ten sections based on the Second Law of Thermodynamics. The fuel specific consumption was taken as the primary indicator to investigate the specific consumption for each section. The Energy-flow Framework Diagram (EFD) was undertaken to modify the system, such as controlling the operating ...
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Agent-based modelling of energy infrastructure transitions
Shaping energy transitions not only requires technical system innovation and redesign but also new policies, regulations, Research and Development (R&D) and investment strategies – a transition assemblage. Transition management thus equates to designing and implementing such an assemblage. Agent-Based Models (ABMs) may be used for ex-ante assessment of transition assemblage alternatives. To help ...
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Renewable energy solutions: Necessity not choice
An elite gathering of Asia Utility firms speak out on the need to go Green. The Energy industry has become a key talking point globally. Renewable energy solutions are no longer optional but a necessity which must be embraced by all governments. Driven by China’s determination to reduce their dependence on coal energy and to look ahead to a more sustainable future, the recent NGU APAC summit ...
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Gardens by the Bay: High performance through design optimization and integration
This is a case study on the development of the Gardens by the Bay, Bay South and Conservatory Complex to provide intelligent and integrated building responses. This article demonstrates the effectiveness of combining a number of environmental design and building services optimization steps to achieve a sustainable design. Key initiatives undertaken include high-level daylighting design of the ...
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Portable biogas bottling plant: a practical approach for using biogas as transportation fuel in rural areas
Biogas contains about 65% methane, 30-35% carbon dioxide, traces of hydrogen sulphide and moisture. It has been observed that diesel engines get severely damaged when operated on biogas for long duration. Presence of these corrosive gases make biogas unsuitable for transportation application. By removing CO2 and trace acidic gases like H2S and moisture, biogas can be converted into natural gas ...
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Biodiesel production from high FFA crude rice bran oil and investigation on its properties as CI engine fuel
This study is an attempt to convert high free fatty acid (FFA) crude rice bran oil (CRBO) into biodiesel and to evaluate whether the biodiesel obtained meets the biodiesel quality standards prescribed by ASTM D 6751-07b. CRBO was subjected to a two-step transesterification process using HCl and NaOH as acid and base catalyst respectively with a 15% v/v of methanol to oil ratio. This process ...
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Modelling competition between natural gas pipeline projects to China
China's natural gas demand is expected to grow rapidly in the coming decades. Therefore the potential of several pipelines from Russia and other CIS countries to China has been investigated. A two-step game-theoretic procedure for the problem formulation is proposed to assess the projects' economic perspectives. In the instantaneous supply game the players determine optimal supply levels to the ...
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Optimisation of micro gas turbine by exergy, economic and environmental (3E) analysis
This research proposes a new method for optimisation of a power generation system based on exergy fuel cost and external social cost of air pollution. A thermodynamic model is provided to estimate the outlet mass flow rates of CO2, CO, NO and NO2 for a gas turbine based on maximising the first and second law efficiencies and minimising the objective function. Results show that inclusion of the ...
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Exergy analysis of engines fuelled with biodiesel from high oleic soybeans based on experimental values
This study dealt with energy and exergy analyses of a John Deere 4045T diesel engine run with no. 2 diesel fuel, Soybean oil Methyl Ester (SME) and High-Oleic soybean oil Methyl Ester (HOME) at 1400 1/min. It was aimed at determining energy and exergy efficiencies, energy losses and exergy destructions of the combustion process and comparing exergetically the fuels used. The specific exergy of ...
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Used Tires are Better Fuels than Coal and Coke, Aliapur Says
A research conducted by French company Aliapur provides proof that burning used tires produce comparable energy (heat output) but less fossil CO2 emissions than burning coal or petroleum coke. Since used tires are not 100% fossil unlike coal and coke, their combustion emissions have renewable carbon or biomass fraction. Through ASTM D6866 testing, the biomass fraction of used tires was ...
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Low-emission coal burning technology
Customer: Foster Wheeler Energy, Siemens, EnergoProjekt Katowice Challenge: One third of carbon dioxide emissions caused by humans come from the burning of fossil fuels in energy production. How to reduce them? Solution: Developing a circulating fluidised bed (CFB) boiler where fossil fuels are combusted with pure oxygen separated from the air. Key benefits: 15-20 per cent lower carbon dioxide ...
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Three models of social change
Can we change fast enough? When thinking about the enormous need for social change as we attempt to move the world economy onto a sustainable path, I find it useful to look at various models of change. Three stand out. One is the catastrophic event model, which I call the Pearl Harbor model, where a dramatic event fundamentally changes how we think and behave. The second model is one where a ...
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U.S. headed for massive decline in carbon emissions*
For years now, many members of Congress have insisted that cutting carbon emissions was difficult, if not impossible. It is not. During the two years since 2007, carbon emissions have dropped 9 percent. While part of this drop is from the recession, part of it is also from efficiency gains and from replacing coal with natural gas, wind, solar, and geothermal energy. The United States has ended ...
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Could food shortages bring down civilization?
“In early 2008, Saudi Arabia announced that, after being self-sufficient in wheat for over 20 years, the non-replenishable aquifer it had been pumping for irrigation was largely depleted,” writes Lester R. Brown in his new book, Plan B 4.0: Mobilizing to Save Civilization (W.W. Norton & Company). “In response, officials said they would reduce their wheat harvest by one eighth each year ...
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