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Carchipulla Saca, Cristian Andres - One of the best experts on this subject based on the ideXlab platform.
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Ingeniería de diseño para la utilización de los relés multifunción de la central mazar en las unidades de la central molino pertenecientes a CELEC EP. Hidropaute
2015Co-Authors: Argüello Martinez, Gorky Salvador, Carchipulla Saca, Cristian AndresAbstract:Esta tesis tiene como objetivo diseñar un módulo móvil con los relés multifunción que posee CELEC EP HIDROPAUTE en las bodegas de la central Mazar, con el fin de minimizar el tiempo fuera de servicio no programado de las unidades de la central Molino, debido a fallas en los relés de protección, de manera que éste remplace a los relés actualmente instalados, que son electromecánicos y de estado sólido, en el sistema de protecciones de la unidad en la cual surgió la falla. Para esto,primero se realizó un trabajo de campo que consistió en levantar toda la información acerca del sistema de protecciones de la central Molino, tanto planos, equipos utilizados y calibraciones actuales de los relés de protección. Además se estudió las características de los relés multifunción disponibles en las bodegas de la central Mazar, con el fin de seleccionar los más aptos para instalarse en el módulo móvil. El diseño del módulo móvil se desarrolló en tres etapas; la primera etapa fue configurar y parametrizar los relés multifunción de manera que su actuación se asemeje lo más posible a los relés de electromecánicos y de estado sólido instalados actualmente; la segunda etapa fue realizar el diseño tanto eléctrico y mecánico del módulo, de manera que cumpla con todos los requerimientos técnicos para una central hidroeléctrica; en la tercera etapa se realizó el procedimiento detallado para reemplazar a los relés actualmente instalados con el modulo móvil. Una vez finalizado el diseño, se elaboró un presupuesto y un cronograma referencial para el proceso de construcción. Para corroborar que las calibraciones de las diferentes funciones de protección de respaldo se asemejan al funcionamiento actual del sistema de protecciones se realizaron pruebas de inyección de señales en los relés multifunción.This thesis aims to design a mobile module with the multifunction relays, which CELEC EP HIDROPAUTE have stored in the cellars of the Mazar plant. It will minimize unscheduled downtime of the units of the Molino plant, due to a failure in protection relays, which are electromechanical and solid state, so that it replaces the relays Currently installed in the System protection unit where failure has happened. First, we did a fieldwork, it consists to obtain all information about protections System of the Molino plant both planes, equipment installed and Current protection relays’ calibrations. Furthermore, we investigated the characteristicsof the multifunction relays available in cellars of the Mazar plant, in order to select the most suitable for installation in mobile module. The design of the mobile module was developed in three stages; the first one was set multifunction relay so that its operation is as close as possible to the electromechanical relays and solid state Currently installed. The second one was performing both electrical and mechanical design of the module,so that it meets all technical requirements for a hydroelectric plant. In the third stage, the procedure to replace the Currently installed relays with mobile module with multifunction relays was made. Then we made a referential budget and timeline of the construction process. Finally, we made injection signals tests on multifunction relays in order to corroborate that the calibrations of different backup protection functions are similar to the Current Operating System protections.Ingeniero EléctricoCuenc
Argüello Martinez, Gorky Salvador - One of the best experts on this subject based on the ideXlab platform.
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Ingeniería de diseño para la utilización de los relés multifunción de la central mazar en las unidades de la central molino pertenecientes a CELEC EP. Hidropaute
2015Co-Authors: Argüello Martinez, Gorky Salvador, Carchipulla Saca, Cristian AndresAbstract:Esta tesis tiene como objetivo diseñar un módulo móvil con los relés multifunción que posee CELEC EP HIDROPAUTE en las bodegas de la central Mazar, con el fin de minimizar el tiempo fuera de servicio no programado de las unidades de la central Molino, debido a fallas en los relés de protección, de manera que éste remplace a los relés actualmente instalados, que son electromecánicos y de estado sólido, en el sistema de protecciones de la unidad en la cual surgió la falla. Para esto,primero se realizó un trabajo de campo que consistió en levantar toda la información acerca del sistema de protecciones de la central Molino, tanto planos, equipos utilizados y calibraciones actuales de los relés de protección. Además se estudió las características de los relés multifunción disponibles en las bodegas de la central Mazar, con el fin de seleccionar los más aptos para instalarse en el módulo móvil. El diseño del módulo móvil se desarrolló en tres etapas; la primera etapa fue configurar y parametrizar los relés multifunción de manera que su actuación se asemeje lo más posible a los relés de electromecánicos y de estado sólido instalados actualmente; la segunda etapa fue realizar el diseño tanto eléctrico y mecánico del módulo, de manera que cumpla con todos los requerimientos técnicos para una central hidroeléctrica; en la tercera etapa se realizó el procedimiento detallado para reemplazar a los relés actualmente instalados con el modulo móvil. Una vez finalizado el diseño, se elaboró un presupuesto y un cronograma referencial para el proceso de construcción. Para corroborar que las calibraciones de las diferentes funciones de protección de respaldo se asemejan al funcionamiento actual del sistema de protecciones se realizaron pruebas de inyección de señales en los relés multifunción.This thesis aims to design a mobile module with the multifunction relays, which CELEC EP HIDROPAUTE have stored in the cellars of the Mazar plant. It will minimize unscheduled downtime of the units of the Molino plant, due to a failure in protection relays, which are electromechanical and solid state, so that it replaces the relays Currently installed in the System protection unit where failure has happened. First, we did a fieldwork, it consists to obtain all information about protections System of the Molino plant both planes, equipment installed and Current protection relays’ calibrations. Furthermore, we investigated the characteristicsof the multifunction relays available in cellars of the Mazar plant, in order to select the most suitable for installation in mobile module. The design of the mobile module was developed in three stages; the first one was set multifunction relay so that its operation is as close as possible to the electromechanical relays and solid state Currently installed. The second one was performing both electrical and mechanical design of the module,so that it meets all technical requirements for a hydroelectric plant. In the third stage, the procedure to replace the Currently installed relays with mobile module with multifunction relays was made. Then we made a referential budget and timeline of the construction process. Finally, we made injection signals tests on multifunction relays in order to corroborate that the calibrations of different backup protection functions are similar to the Current Operating System protections.Ingeniero EléctricoCuenc
Kihyun Kim - One of the best experts on this subject based on the ideXlab platform.
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a proposal for the upgrade of the Current Operating System of the seoul s atmospheric monitoring network based on statistical analysis
Journal of Korean Society for Atmospheric Environment, 2013Co-Authors: Minsuk Bae, Chang Hoon Jung, Young Sung Ghim, Kihyun KimAbstract:The present Operating System for the atmospheric monitoring network in the city of Seoul, Korea, has been established since the late 90s by the Korean Ministry of Environment (KMOE). In this research, it was evaluated by the multi-statistical approaches through combinations of time series analysis, correlation matrix, and multiple cluster analysis. Finally, road traffic including resuspended materials can be one of the main sources of particulate matter in the atmosphere. Based on its importance, it will be significant challenges in quantitative evaluation of its contribution to airborne concentrations. The future directions for their amendments such as a new management plan for the source of road dust (including car emissions) were devised and proposed based on the statistical judgements derived in this research.
Tao Zhang - One of the best experts on this subject based on the ideXlab platform.
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energy performance analysis on segmented liquid desiccant air conditioning System for bus spray paint booths
Journal of Cleaner Production, 2021Co-Authors: Bowen Guan, Xiaohua Liu, Tao ZhangAbstract:Abstract A paint booth is the dominant energy consumer in a manufacturing plant. Large amount of conditioned air with accurate temperature and humidity is required in the spray-paint booth to guarantee constant product quality, which implies huge energy consumption for air-conditioning. However, there has been limited research on energy-saving design for air-conditioning Systems applied in the spray-paint booth. In this study, a novel segmented liquid desiccant air-conditioning System is proposed for energy conservation in the spray-paint booths of a bus manufacturing plant. A mathematical model is built to simulate the performance of the proposed System during the cooling season. The advantages of the proposed System can be summarized in terms of the following two aspects: first, the segmented and cascaded configuration of the proposed System helps to reduce the cooling load from 2844.4 to 1078.0 kW under basic conditions when compared with the separated configuration; second, the adoption of the liquid desiccant dehumidifier helps to avoid reheating, and a reheating capacity of 630.8 kW in the Current Operating System could be saved by Operating the proposed System under basic conditions. When Operating the proposed System, a yearly primary energy saving rate of 40.7% can be achieved, while a yearly running cost saving rate of 35.6% can be achieved in this plant as compared to the Current Operating System. This study would provide valuable reference for energy-efficient air-conditioning System design for applications in spray-paint booths.
Minsuk Bae - One of the best experts on this subject based on the ideXlab platform.
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a proposal for the upgrade of the Current Operating System of the seoul s atmospheric monitoring network based on statistical analysis
Journal of Korean Society for Atmospheric Environment, 2013Co-Authors: Minsuk Bae, Chang Hoon Jung, Young Sung Ghim, Kihyun KimAbstract:The present Operating System for the atmospheric monitoring network in the city of Seoul, Korea, has been established since the late 90s by the Korean Ministry of Environment (KMOE). In this research, it was evaluated by the multi-statistical approaches through combinations of time series analysis, correlation matrix, and multiple cluster analysis. Finally, road traffic including resuspended materials can be one of the main sources of particulate matter in the atmosphere. Based on its importance, it will be significant challenges in quantitative evaluation of its contribution to airborne concentrations. The future directions for their amendments such as a new management plan for the source of road dust (including car emissions) were devised and proposed based on the statistical judgements derived in this research.
