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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
61

Advanced modeling and simulation of integrated gasification combined cycle power plants with CO2-capture

Rieger, Mathias 17 April 2014 (has links)
The objective of this thesis is to provide an extensive description of the correlations in some of the most crucial sub-processes for hard coal fired IGCC with carbon capture (CC-IGCC). For this purpose, process simulation models are developed for four industrial gasification processes, the CO-shift cycle, the acid gas removal unit, the sulfur recovery process, the gas turbine, the water-/steam cycle and the air separation unit (ASU). Process simulations clarify the influence of certain boundary conditions on plant operation, performance and economics. Based on that, a comparative benchmark of CC-IGCC concepts is conducted. Furthermore, the influence of integration between the gas turbine and the ASU is analyzed in detail. The generated findings are used to develop an advanced plant configuration with improved economics. Nevertheless, IGCC power plants with carbon capture are not found to be an economically efficient power generation technology at present day boundary conditions.
62

A Colombian Nun and the Love of God and Neighbour : The Spiritual Path of María de Jesús (1690s-1776) / En Colombiansk Nunna och Kärleken till Gud och till Nästan : María de Jesús (ca 1690-1776) Andliga Väg

Cadavid Yani, Helwi Margarita January 2016 (has links)
María de Jesús (1690s-1776) was a white-veiled Discalced Carmelite nun of the San José convent in Santa Fe de Bogotá, founded in 1606. She professed in the year 1714, and her spiritual journal was printed in a chronicle about the convent in the 1940s. The aim of this study is to examine the love of God and of neighbour, as expressed in the spiritual journal of María de Jesús. In this study I will proceed from the understanding of love as charity. In Christian thought God Himself is love, and its source. Charity, the third, and greatest, of the theological virtues, is a state of being in and responding to God’s love and favour. This way of loving consists in loving God wholeheartedly and loving our neighbour as ourselves. Included in loving our neighbour are acts related to his or her spiritual benefit and salvation. These are all present themes in María de Jesús’ text, but my aim is to examine how she incorporates these themes in her spiritual testimony by analyzing the imagery she uses, and the affective language in her spiritual journal. I will also seek to understand her way of writing by analyzing her text against the background of the tradition of women’s spiritual writings. Being a Discalced Carmelite, it will also be interesting to discover the Teresian presence in María de Jesus’ text, i.e. the influence of her predecessor and the reformer of the order, Teresa of Ávila (1515- 1582). I suggest that this can be noticed in certain rhetorical techniques. I also aim to examine if there are any similarities and differences in their expressions of love of God and of neighbour.

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