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Renfrew, United Kingdom

Doosan Power Systems is a holding company in the power generation industry that provides shared IT, communications, legal, financial and other administrative services to its subsidiary companies:Doosan Babcock is a power sector OEM, construction, upgrade and after-market services company that offers specialist technologies to the fossil-fired power generation, nuclear power generation, and oil, gas and petrochemical industries.Doosan Lentjes is a specialist engineering, design and construction business that provides proprietary waste-to-energy services and technologies, circulating fluidised bed boiler technologies and air quality control systems to the thermal power generation, industrial and municipal sectors.Doosan Škoda Power is an OEM steam turbine designer and manufacturer that provides systems, components and maintenance services to fossil and nuclear power generation plants, municipal waste-to-energy and biomass incineration plants, and any manufacturing or petrochemicals application that requires turbo generator technology. Doosan Power Systems' headquarters are located in Crawley, England. Its parent company is Doosan Heavy Industries and Construction in Korea. Wikipedia.

White V.,Air Products and Chemicals Inc | Torrente-Murciano L.,Imperial College London | Sturgeon D.,Doosan Power Systems | Chadwick D.,Imperial College London
International Journal of Greenhouse Gas Control

Oxyfuel combustion in a pulverised fuel coal-fired power station produces a raw CO2 product containing contaminants such as water vapour plus oxygen, nitrogen and argon derived from the excess oxygen for combustion, impurities in the oxygen used, and any air leakage into the system. There are also acid gases present, such as SO3, SO2, HCl and NOx produced as byproducts of combustion. At GHGT8 (White and Allam, 2006) we presented reactions that gave a path-way for SO2 to be removed as H2SO4 and NO and NO2 to be removed as HNO3. In this paper we present initial results from the OxyCoal-UK project in which these reactions are being studied experimentally to provide the important reaction kinetic information that is so far missing from the literature. This experimental work is being carried out at Imperial College London with synthetic flue gas and then using actual flue gas via a sidestream at Doosan Babcock's 160 kW coal-fired oxyfuel rig. The results produced support the theory that SOx and NOx components can be removed during compression of raw oxyfuel-derived CO2 and therefore, for emissions control and CO2 product purity, traditional FGD and deNOx systems should not be required in an oxyfuel-fired coal power plant. © 2009 Elsevier Ltd. Source

North M.,Northumbria University | Wang B.,Doosan Power Systems | Young C.,Northumbria University
Energy and Environmental Science

The impact of flue gas from the combustion of natural gas or coal in a combustion test facility on the activity of catalysts for the synthesis of cyclic carbonates from epoxides and waste carbon dioxide has been investigated. In batch reactions with styrene oxide as substrate, some loss of catalyst activity was apparent and this was greater for catalyst exposed to flue gas generated from burning coal than for catalyst exposed to flue gas obtained by burning gas. In a gas-phase flow reactor with ethylene oxide as substrate, the detrimental effect of flue gas exposure on catalyst activity was much less apparent. © 2011 The Royal Society of Chemistry. Source

Taylor I.J.,University of Strathclyde | Robertson A.C.,Doosan Power Systems
Journal of Wind Engineering and Industrial Aerodynamics

Rain-wind induced vibration is an aeroelastic phenomenon that occurs on the inclined cables of cable-stayed bridges. The vibrations are believed to be caused by a complicated non-linear interaction between rivulets of rain water that run down the cables and the wind loading on the cables due to the unsteady aerodynamic flow field. Recent research at the University of Strathclyde has been to develop a numerical method to simulate the influence of the external air flow on the rivulet dynamics and vice versa, the results of which can be used to assess the importance of the water rivulets on the instability. The numerical approach for the first time couples a Discrete Vortex Method solver to determine the external flow field and unsteady aerodynamic loading, and a pseudo-spectral solver based on lubrication theory to model the evolution and growth of the water rivulets on the cable surface under external loading. The results of the coupled model are used to assess the effects of various loading combinations, and importantly are consistent with previous full scale and experimental observations of rain-wind induced vibration, providing new information about the underlying physical mechanisms of the instability. © 2011 Elsevier Ltd. Source

Doosan Power Systems | Date: 2011-11-25

An apparatus for the simultaneous drying and transport of low-rank coal is described. The apparatus has a first pipe having an inner wall surface surroundingly defining a first flow channel and an outer wall surface; a low-rank coal supply system to supply particulate low-rank coal to an inlet of the first flow channel; a transport gas supply to supply transport gas to an inlet of the first flow channel; a heating apparatus to apply heat to an outer wall surface of the first pipe along at least part of the length thereof for example in the form of a drying fluid supply to supply a drying fluid, configured such that a drying fluid is brought into contact with the outer wall surface of the first pipe along at least part of the length thereof. A system of design of thermal power plant incorporating such an apparatus is also described. A method for the simultaneous drying and transport of low-rank coal is also described. A system and method for supplying dried low-rank coal for combustion are also described.

Doosan Power Systems | Date: 2011-11-23

A column structure is described for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream. The column structure comprises a plurality of vessel column modules each having an elongate upright wall structure, each column module comprises a plurality of vertically disposed sub-modules, the modules being disposed together alongside one another in two dimensional array to constitute collectively the column structure. A column top support structure is located in the vicinity of the upper part of a column structure so assembled and each column module is mechanically supported from the column top support structure. A method of assembly of such a column and to a method of removal of a target gas from a gas phase using such a column are also described.

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