Autor: Rulik, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Numerical modeling of CO₂ separation process
Autorzy:: Remiorz, L.
Rulik, S.
Dykas, S.
Powiązania:: https://bibliotekanauki.pl/articles/240653.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: CO2 separation
thermoacoustic
CFD
separacja CO2
termoakustyka
Opis:: Paper presents the results of numerical modelling of a rectangular tube filled with a mixture of air and CO₂ by means of the induced standing wave. Assumed frequency inducing the acoustic waves corresponds to the frequency of the thermoacoustic engine. In order to reduce the computational time the engine has been replaced by the mechanical system consisting of a piston. This paper includes the results of model studies of an acoustic tube filled with a mixture of air and CO₂ in which a standing wave was induced.
Źródło:: Archives of Thermodynamics; 2013, 34, 1; 41-53
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Application of CFD technique for modelling of the thermoacoustic engine
Autorzy:: Rulik, S.
Remiorz, L.
Dykas, S.
Powiązania:: https://bibliotekanauki.pl/articles/239996.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: silnik termoakustyczny
termoakustyka
CFD
thermoacoustic
thermoacoustic engine
thermoacoustic regiferator
Opis:: The paper is concerned with an important issue from the field of thermoacoustics - the numerical modelling of the flow field in the thermoacoustic engine. The presented way of modelling is based on the solution to fundamental fluid mechanics equations that govern the flow of compressible, viscous, and heat-transferring gas. The paper presents the way of modelling the thermoacoustic engine, the way of conducting calculations and the results which illustrate the correctness of the selected computational technique.
Źródło:: Archives of Thermodynamics; 2011, 32, 3; 175-190
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Analysis of pipeline transportation systems for carbon dioxide sequestration
Autorzy:: Witkowski, A.
Majkut, M.
Rulik, S.
Powiązania:: https://bibliotekanauki.pl/articles/240910.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: carbon dioxide
dense phase
pipeline transportation
energy efficiency
thermal insulation
dwutlenek węgla
transport przesyłowy
energoefektywność
izolacja termiczna
Opis:: A commercially available ASPEN PLUS simulation using a pipe model was employed to determine the maximum safe pipeline distances to subsequent booster stations as a function of carbon dioxide (CO₂) inlet pressure, ambient temperature and ground level heat flux parameters under three conditions: isothermal, adiabatic and with account of heat transfer. In the paper, the CO₂ working area was assumed to be either in the liquid or in the supercritical state and results for these two states were compared. The following power station data were used: a 900 MW pulverized coal-fired power plant with 90% of CO₂ recovered (156.43 kg/s) and the monothanolamine absorption method for separating CO₂ from flue gases. The results show that a subcooled liquid transport maximizes energy efficiency and minimizes the cost of CO₂ transport over long distances under isothermal, adiabatic and heat transfer conditions. After CO₂ is compressed and boosted to above 9 MPa, its temperature is usually higher than ambient temperature. The thermal insulation layer slows down the CO₂ temperature decrease process, increasing the pressure drop in the pipeline. Therefore in Poland, considering the atmospheric conditions, the thermal insulation layer should not be laid on the external surface of the pipeline.
Źródło:: Archives of Thermodynamics; 2014, 35, 1; 117-140
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: The effect of the internal reheat application on the efficiency of the 900 MW ultra-supercritical coal-fired power unit
Autorzy:: Łukowicz, H.
Dykas, S.
Stępczyńska, K.
Rulik, S.
Powiązania:: https://bibliotekanauki.pl/articles/240128.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: sprawność generowania energii elektrycznej
ultra-nadkrytyczne bloki energetyczne
wewnętrzne podgrzewanie
electricity generation efficiency
internal reheat
ultra-supercritical coal-fired power units
Opis:: The paper presents a thermal-economic analysis of a 900 MW coal-fired power unit for ultra-supercritical parameters with internal steam reheat. The subject of the study was the cycle proposed as the "initial thermal cycle structure" during the completion of the project "Advanced Technologies for Energy Generation" with the steam parameters of 650/670 [degrees]C/30 MPa. Two configurations of internal reheat were analysed: with a fourand seven-section exchanger. The effect of reheat on the operation of the power unit under a partial load was also analysed, and preliminary calculations of the heat exchange area of the internal reheat were made.
Źródło:: Archives of Thermodynamics; 2011, 32, 3; 127-144
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Thermodynamic and economic analysis of a 900 MW ultra-supercritical power unit
Autorzy:: Łukowicz, H.
Dykas, S.
Rulik, S.
Stępczyńska, K.
Powiązania:: https://bibliotekanauki.pl/articles/240644.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: obieg pary
parametry apry
podwójne podgrzewanie
coal-fired power unit
double reheat
steam cycle
ultra-supercritical steam parameters
Opis:: The paper presents a thermal-economic analysis of different variants of a hard coal-fired 900 MW ultra-supercritical power unit. The aim of the study was to determine the effect of the parameters of live and reheated steam on the basic thermodynamic and economic indices of the thermal cycle. The subject of the study was the cycle configuration proposed as the "initial thermal cycle structure" during the completion of the project "Advanced Technologies for Energy Generation" with the live and reheated steam parameters of 650/670 [degrees]C. At the same time, a new concept of a thermal cycle for ultra-supercritical parameters with live and reheated steam temperature of 700/720 [degrees]C was suggested. The analysis of the ultra-supercritical unit concerned a variant with a single and double steam reheat. All solutions presented in the paper were subject to a detailed thermodynamic analysis, as well as an economic one which also included CO2 emissions charges. The conducted economic analysis made it possible to determine the maximum value of investment expenditures at which given solutions are pro.table.
Źródło:: Archives of Thermodynamics; 2011, 32, 3; 231-245
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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