By Andrzej Witkowski, Andrzej Rusin, Miroslaw Majkut, Sebastian Rulik, Katarzyna Stolecka
Providing a finished research of CO2 compression, transportation tactics and questions of safety for put up combustion CO2 seize purposes for a 900 MW pulverized demanding coal-fired energy plant, this e-book assesses ideas for reinforcing the strain of CO2 to pipeline strain values with a minimum volume of strength. 4 sorts of compressors are tested intimately: a traditional multistage centrifugal compressor, integrally geared centrifugal compressor, supersonic surprise wave compressor, and pump machines. The learn demonstrates that the complete compression strength is heavily relating to the thermodynamic approach and isn't made up our minds by means of compressor potency on my own. one other challenge addressed is that of CO2 pipeline delivery from the compressor outlet web site to a disposal website below warmth move stipulations. The publication additionally gains an research of simulations and types which are used to figure out the utmost secure pipeline distance to next booster stations as a functionality of inlet strain, ambient temperature, thickness of the thermal insulation and ground-level warmth flux stipulations. This publication makes a speciality of compression in addition to transportation techniques with specific emphasis at the protection dangers concerning the shipping of CO2. an important challenge by way of environmental security is making sure certain and trustworthy possibility id. As dangers can simply be controlled successfully in the event that they are correctly pointed out, difficulties regarding the release and atmospheric dispersion of CO2 also are discussed.
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Additional resources for Advances in Carbon Dioxide Compression and Pipeline Transportation Processes
1 General Introduction The power of the CO2 compressor may amount to approximately 8–10 % of the rated power of the entire turbine set, which substantially increases the thermal power plant own needs and, as a consequence, reduces the net efficiency of electricity generation. For this reason, intercooling is introduced in order to improve the compression process efficiency as it makes it possible to bring compression closer to an isothermal process. The introduction of interstage coolers may in this case significantly reduce the required driving power of the compressor.
The obtained results make it possible in this case to determine both the heat exchange surface area and the pressure drops on the “hot” and “cold” ends for individual coolers. Moreover, the presented analysis points to a number of problems arising during the selection of the cooling system configuration and appropriate parameters. The main problems related to the selection and structure of interstage coolers are discussed in the sub-sections below. 2 Cooling Water Temperature The cooling water temperature has a decisive impact on the effectiveness of the cooling process.
A potential increase in permissible pressure losses leads to a rise in the flowing CO2 velocity and, consequently, to a more intense heat exchange, which in turn entails a reduction in the required heat exchange surface area. Therefore, the optimum selection of the size of pressure losses should take account of their impact on the dimensions of the heat exchanger itself. 1. 5. The results indicate that six exchangers are needed in the multistage compressor conception under consideration. 4). 1 Introduction Existing CO2 compressor designs are expensive because they have to ensure a high overall pressure ratio of 100:1 and, partly, because they require stainless steel to accommodate CO2 in the presence of water vapour.
Advances in Carbon Dioxide Compression and Pipeline Transportation Processes by Andrzej Witkowski, Andrzej Rusin, Miroslaw Majkut, Sebastian Rulik, Katarzyna Stolecka