Carbon capture and sequestration (or carbon capture and storage, CCS) is widely seen as a critical strategy for limiting atmospheric emissions of carbon dioxide (CO 2)—the principal " greenhouse gas " linked to global climate change—from power plants and other large industrial sources. This report focuses on the first component of a CCS system, the CO 2 capture process. Unlike the other two com...

Combustion characteristics (Introduction) .................................................................................................... 1 Combustion fundamentals (What it is) ..................................................................................................... 1 What it is not ...................................................................................................

The current design of gas-turbine (GT) systems is driven by the need for increased powerdensities, improved fuel-efficiencies, and reduced life cycle costs and environmental impact. Computational techniques have the potential for providing valuable information for the design of GT combustion systems, if adequate models are available. Over recent years, remarkable progress has been made in the d...

Introduction Gasifying biomass to produce a combustible gas provides the possibility for much more efficient overall conversion of a given biomass resource into electric power than is possible with traditional combustion-based technologies. In particular, gasified biomass can be used to power internal combustion engines (ICEs), gas turbines, and fuel cells, all of which are able to produce elec...

This report describes work completed during the eleventh quarter of a DOE-funded study of mineral transformations and ash deposition during staged combustion. Accomplishments included repairs and improvements to the laboratory combustor, collection of deposits and observation of deposition behavior as a function of operating conditions, and analysis of deposit samples collected under both stage...

In previous studies, active suspension system in conventional powertrain systems was investigated. This paper presents the application of active suspension system in parallel hybrid electric vehicles as a novel idea. The main motivation for this study is investigation of the potential advantages of this application over the conventional one. For this purpose, a simultaneous simulation is develo...

An introductory overview of the micro and small-scale devices for the combustion in micro-gas turbines is presented at the beginning of this paper in order to identify and select the main topics to be discussed in the following. The wide variety of combustion systems for this particular application, together with the different strategies and design concepts that are proposes for setting up effi...

The U.S. EPA State and Local Climate Change Program is unveiling the Emission Inventory Improvement Program Volume VIII: Estimating Greenhouse Gas Emissions, a revised guide for states conducting greenhouse gas emission inventories. The revised guidance is accompanied, for the first time, by the State Tool for Greenhouse Gas Inventory Development, a user-friendly inventory spreadsheet tool inte...

The synthesis of singleand double-wall carbon nanotubes by gas flow-modified, catalyst-supported chemical vapor deposition (CCVD) is reported. We have investigated the gas flow condition dependence on the synthesis of carbon nanotubes (CNTs) by placing blocks in the CCVD reactor. Carbon nanotubes having large diameters are preferentially grown under turbulent flow conditions. This indicates tha...

Computational fluid dynamics (CFD) is being increasingly used to analyse gasoline direct injection (G-DI) combustion systems in the early stages of design and development. Consequently, it is important to ensure that the CFD codes are both fast and accurate. The objective of the work presented in this article was to validate the new, advanced boundary motion capability of VECTIS which is built ...