fuel efficiency law Articles

  • Second law analyses on oxy-fuel combustion of gaseous fuels

    The exergy losses in the adiabatic premixed oxy-fuel combustion are quantitatively analysed. The global exergy loss decreases with increasing equivalence ratio. The exergy loss of chemical reaction is comparable to that of internal thermal energy exchange for low equivalence ratio while that of mixing process is negligible. To keep similar thermodynamic characteristics of conventional combustion, ...


    By Inderscience Publishers

  • The law, agency and global climate change

    Consideration of policy for addressing global climate change must start with a recognition of the conflicting interests of the industrialised and the developing nations. Effective resource management regimes require a structure of incentives that will induce nations with disparate interests to cooperate and to resist temptations to defect from international agreements. Agency theory offers ...


    By Inderscience Publishers

  • Efficiency of a standard gas-turbine power generation cycle running on different fuels

    This paper presents a study of second-law efficiency in a standard Brayton combined cycle power generation, using several paraffinic fuels ranging from methane to heptane. The main objective of the study was to identify a trend with the number of carbon atoms in the compound. In this way, a qualitative criterion can be built to evaluate the properties of poor-quality gas turbine fuels containing ...


    By Inderscience Publishers

  • 5 out of 7 EU Carmakers on Track to Hit EU 2021 Fuel Efficiency Targets – Report

    Five out of seven European carmakers are on track to meet their CO2 targets by the 2021 deadline if they keep progressing as they have since the introduction of the law in 2008, T&E’s 2014 cars and CO2 report reveals. The report, in its 9th edition, ...

  • How California’s greenhouse gas laws can better serve disadvantaged communities

    Environmental justice advocates are working to ensure the state’s efforts to combat climate change benefit everyone — and the lessons can be applied nationwide. It was a time of year that should have been perfect. Warming temperatures marked Southern California’s gentle return to spring. The grass had shifted from drab to glowing green. The sky, which can be pale and ...


    By Ensia

  • Black Liquor – Green fuel or greenwash?

    Black liquor is not the product of a pot still in rural Tennessee, but a toxic by-product of the kraft wood pulping process. On May 20, 2009 Canada, together with the European Union, Brazil and Chile, wrote to the United States Congress urging them to repeal a tax credit for the use of black liquor as a biofuel on the basis that the credit is acting as a subsidy on the production of kraft pulp ...


    By McMillan LLP

  • Second-law analysis of an LPG-powered 4-stroke SI engine under variable stroke length and compression ratio

    A second-law analysis of an LPG-powered, 4-stroke, single-cylinder, water-cooled, variable stroke length spark-ignition engine was carried out to assess the engine's energy efficiency. The engine was simulated at each stroke length/compression ratio combination. The second law of thermodynamics with the aid of the first law represents the results of entropy generation, reversible work output and ...


    By Inderscience Publishers

  • Second law evaluation and sensitivity analysis of a thermal power plant operating with 10 different types of low grade Turkish lignites

    Second law and sensitivity analysis of a lignite–fired Thermal Power Plant (TPP) are implemented by using the data obtained from a simulated 245 MWel TPP in Thermoflex simulation software. In this regard, exergy destruction and exergy efficiency of each component of the power plant and power generation, emissions and exergetic performance of the overall TPP is determined. Also ...


    By Inderscience Publishers

  • Study Charts a Future for Waste-Derived Fuels

    Pointers to possible future EU policy initiatives to give co-incineration facilities burning waste-derived fuels a strategic role in waste management have emerged in a study for the European Commission.1 The report suggests a policy focus on promoting source separation of municipal wastes, active discouragement of mass burn incinerators, and a levelling of the regulatory playing-field for ...

  • The real power behind today’s energy efficiency industry?

    President Barack Obama recently pushed for increased energy efficiency in his State of the Union address. His endorsement is a plus, no argument. But it may not be the federal government that drives the industry’s next growth spurt. Increasingly, the push for clean energy seems to be more grassroots, from the city and community. Consider these significant ...

  • Refuse Derived Fuel, Current Practice and Perspectives

    Untitled Document Summary I OBJECTIVES The objectives of the project were to undertake a survey on the current ...

  • How to Optimize Oxidation Systems for Efficient Operation

    Emphasis on air management within converting-process dryers and ovens is critical to the design of pollution-control systems for treating exhausts containing VOCs (volatile organic compounds). Efficient air management allows the pollution-control system to be optimally sized to meet the needs of the process. Good process control further defines the emission stream by avoiding the need for large ...


    By Babcock & Wilcox MEGTEC LLC

  • AST regional fuel distribution and services provider – Case Study

    The Challenge This Tanknology client is one of the largest regional wholesale petroleum marketers in the US, currently operating 15 bulk-fueling locations with more than 100 Aboveground Storage Tanks (ASTs), supplies, fuel and lubricants to thousands of clients across multiple states. The company is an expansion mode, with frequent acquisitions. Tanknology historically has supported the ...


    By Tanknology Inc.

  • Raising energy efficiency in a new materials economy - Part II

    There is a vast worldwide potential for cutting carbon dioxide (CO2) emissions by reducing the use of materials. This begins with the major metals--steel, aluminum, and copper--where recycling requires only a fraction of the energy needed to produce these metals from virgin ore, and with the recycling and composting of most household garbage. It continues with designing cars, appliances, and ...


    By Earth Policy Institute

  • In view of sustainable future energetic–exergetic and economic analysis of a natural gas cogeneration plant

    Thermodynamics plays an important role in performing energy and exergy analyses of industrial processes. The first law is widely used in engineering practice, and is the basis of the heat–balance method of analysis that is commonly used in energy systems performance analysis. However, the second law involves the reversibility or irreversibility of processes, and is a very important aspect ...


    By Inderscience Publishers

  • Australian electricity supply: orientations to growth and prospects for sustainability

    In the new competitive order, Australian electricity systems have been oriented to growth of electricity sales based on low margins and the capture of market share. Electricity is a premium fuel. The second law of thermodynamics testifies to this, as does the relationship between coal-fired electricity and the negative externality of greenhouse warming. Electricity prices should reflect its ...


    By Inderscience Publishers

  • Energetic and exergetic performance assessment of a turboprop engine at various loads

    It is necessary to understand the mechanisms that have enabled improvements of performance parameters such as thermodynamics efficiencies, thrust or power, specific fuel consumption and specific power in aero engines, thus reducing environmental impact. In this study, a thermodynamic analysis of a turboprop engine is performed at full and partial load conditions. The maximum overall and exergy ...


    By Inderscience Publishers

  • A review on exergetic analysis and assessment of various types of engines

    This study presents a review on energy and exergy analysis of Otto and Diesel engines. Calculation methods of the analysis are discussed in detail. Previous studies, from 1963 to 2008, are chronologically listed and studied. The test engines had different cylinder numbers, speeds and rated powers. Engine specifications and test bench schematics are given in tables and figures. The best exergetic ...


    By Inderscience Publishers

  • Exergy analysis of a steam power plant: a case study in Iran

    In the last decades, exergy analysis, based on the second law of thermodynamics was a method that substituted the energy analysis in studying thermodynamic systems. In this paper, the cycle of a power plant and its details, with two kinds of fuels, natural gas and diesel, have been analysed at its maximum load and the two factors, losses and exergy efficiency, which are the basic factors used to ...


    By Inderscience Publishers

  • Optimisation of energy and exergy of turbofan engines using genetic algorithms

    This paper presents an application of genetic algorithm (GA) metaheuristics to optimise the design of two-spool separated-flow turbofan engines based on energy and exergy laws. The GA was used to seek the optimum values of eight parameters that defined the turbofan engine. A computer program called the TurboJet-Engine Optimiser v1.0 (TJEO-1.0) has been developed to perform thermodynamic property ...


    By Inderscience Publishers

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