Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Oscar de Santiago"'
Publikováno v:
Advances in Mechanical Engineering, Vol 15 (2023)
Although organic Rankine cycles (ORCs) have cornered the small-scale energy harvesting market, the generation capacities produced by sCO 2 cycles far exceed those of ORCs, reaching higher powers and efficiencies. This paper analyzes the results of th
Externí odkaz:
https://doaj.org/article/e61adcab21f84ef2a2895c29c8fe15f5
Autor:
Alfredo Chávez, Oscar De Santiago
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. 236:1388-1408
Dry gas seals represent a significant advancement in turbo machinery due to their ability to handle high pressures and speeds without the use of external sealing fluids, such as oil or water, thus reducing contamination and increasing reliability. De
Autor:
Oscar Tenango-Pirin, J. C. García, Laura Castro-Gómez, J. A. Rodríguez, F. Sierra, Oscar De Santiago, J. M. Rodríguez-Lelis
Publikováno v:
International Journal of Rotating Machinery, Vol 2016 (2016)
Microgas turbines (MGT) are an alternative for small-scale energy production; however, their small size becomes a drawback since it enhances the heat transfer among their components. Moreover, heat transfer drives to temperature gradients which becom
Externí odkaz:
https://doaj.org/article/0f7dbb1a31724d25b017cd6714d3842d
Autor:
Oscar De Santiago Duran, Juan Jauregui
Publikováno v:
Volume 7A: Structures and Dynamics.
The work presented here is a continuation of a set of experiments that were designed for predicting friction forces during rotor rubbing. The experimental set up consisted of a rotor rubbing a fixed surface. The surface had two force sensors, one ali
Autor:
Alfredo Chávez, Oscar De Santiago
Publikováno v:
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology. :135065012097380
This work shows the experimental thermo elastic behavior of the stationary ring of a dry gas seal with logarithmic spiral grooves of 15° (common commercial configuration) and 11° spiral (configuration evaluated to confirm analytical predictions dev
Autor:
Oscar De Santiago, Alfredo Chávez
Publikováno v:
Tribology International. 143:106007
This work shows the estimation of the pressure response function between the pressure developed at the working film of a dry gas seal and the dynamic pressure measurement at the end of a flexible hose (attenuated pressure) used to monitor the film pr
Publikováno v:
Volume 7B: Structures and Dynamics.
Gas bearings are an attractive means of load support for rotating machinery due to their low mechanical power losses and dispensing of expensive lubrication systems. A subset of gas bearing technology, porous type gas bearings utilize a porous materi
Autor:
J.A. Rodríguez, J. M. Rodríguez-Lelis, J. C. García, Laura Castro-Gómez, Oscar De Santiago, Oscar Tenango-Pirin, F. Z. Sierra
Publikováno v:
International Journal of Rotating Machinery, Vol 2016 (2016)
Microgas turbines (MGT) are an alternative for small-scale energy production; however, their small size becomes a drawback since it enhances the heat transfer among their components. Moreover, heat transfer drives to temperature gradients which becom
Autor:
Oscar De Santiago, Luis San Andrés
Publikováno v:
Tribology Transactions. 50:114-126
Bearing force coefficients are a necessary component in the analysis of linear stability and response of rotating dynamic systems. Often, these bearing parameters are predicted using limited or restrictive flow models, or operating conditions in the
Publikováno v:
Volume 7A: Structures and Dynamics.
This paper presents a novel method for identifying the dynamic parameters of a gas bearing, whose force coefficients are strong functions of frequency. The method is based on the analysis of the phase diagram with the model assuming a mass-damper-spr