The frame of an optimization model of coal alloction in a power generation group was introduced in present study. The influence of multi-coals blending and transportation were all considered in the model. Firstly, the impact of each process of coal using on the cost of power generation and boiler safety in the combustion process were analyzed, and the detailed mathematical descriptions were giv...

There is growing international interest in carbon capture and sequestration (CCS) technology to reduce carbon dioxide emissions linked to global climate change. CCS is especially attractive for electric power plants burning coal and other fossil fuels, which are a major source of global CO2 emissions. This paper describes the performance and cost of CO2 capture technologies for large-scale elec...

The efforts of Justices Sandra Day O’Connor and Stephen Breyer to provoke examination of the vitality of the American judiciary’s independence have inspired two conferences,1 which in turn have produced many thoughtful papers and much commentary. I have been asked to respond to one such paper offered by Professors Paul Carrington of Duke and Roger Cramton of Cornell.2 These two distinguished sc...

a r t i c l e i n f o JEL classification: C14 D24 O13 O44 Q53 Q56 Keywords: Shadow price Emissions trading Directional distance function Marginal abatement cost Coal power plant Shadow prices, also termed marginal abatement costs, provide valuable guidelines to support environmental regulatory policies for CO 2 , SO 2 and NO x , the key contributors to climate change. This paper complements the...

Carbon capture and sequestration (or storage)—known as CCS—has attracted interest as a measure for mitigating global climate change because large amounts of carbon dioxide (CO 2) emitted from fossil fuel use in the United States are potentially available to be captured and stored underground or prevented from reaching the atmosphere. Large, industrial sources of CO 2 , such as electricity-gener...

This paper discusses the use of laboratory drag measurements and filter operating data to analyze factors affecting dustcake flow resistance in a hot-gas filter at the Power Systems Development Facility (PSDF). The hot-gas filter is a Siemens-Westinghouse two-tier candle filter system that is collecting coal gasification ash from a KBR Transport Gasifier. Operating experience with this system h...

It is not every day that a scholar stoops to defend legislatures. Oh sure, lots of political theorists rush to the defense of democracy in the abstract, but they often have little to say about actual democratic practice. By contrast, empirical political scientists (and “positive political theorists”) have lavished attention on the institutions of democratic governance such as legislatures (part...

Coal gangue is residual abandoned coal, produced after the pre-processing steps of mining. It is an amalgam of several unwanted substances. It is important to separate coal gangue from lump coal before fed to thermal power plants. In this paper, investigation on the fundamental characteristics of coal images and gangue images with digital image processing technology is proposed. The system dete...