536 research outputs found
Simulation of a new Pressure Swing Batch Distillation System
No full textThe operation and performance of a new pressure swing batch distillation
configuration is investigated by rigorous simulation calculations. A maximum boiling point
azeotrope is separated in a double column batch rectifier. We study the influence of the main
operational parameters and determine the optimal value of these parameters. The calculation
results are presented for the mixture water (A) – ethylene-diamine (B)
New column configurations for pressure swing batch distillation I. Feasibility Studies
No full textThe feasibility of the pressure swing distillation in different batch column
configurations is investigated. The method is based on the assumption of maximal
separation. Besides studying the well known batch configurations (rectifier, stripper,
middle vessel column) we also suggest two novel configurations such as double column
batch rectifier and double column batch stripper. We also study the alternate application
of a rectifier and a stripper
New column configurations for pressure swing batch distillation II. Rigorous simulation calculations
No full textThe pressure swing distillation in different batch column configurations is
investigated by rigorous simulation calculations. The calculations are made by a
professional flow-sheet simulator for the separation of a minimum (ethanol–toluene) and
a maximum boiling (water– ethylene-diamine) azeotropic mixture. Besides studying the
well known configurations (rectifier, stripper) we also investigate two novel
configurations such as double column batch rectifier and double column batch stripper.
The alternate application of a batch rectifier and a batch stripper is also studied. The
different column configurations are compared
Sass Gábor munkássága. Egy gazdasági géptan tankönyv születéstörténete
No full textThis article examines the work of Gábor Sass, a mechanical engineer, as a textbook author and his textbook on Economic Mechanics. We draw heavily on the author\u27s papers, a valuable part of the Collection of Agricultural History Papers of the Hungarian Agricultural Museum and Library. The collection of documents includes the review reports on the textbook, the author\u27s reply, the author\u27s correspondence with the agricultural machinery companies, and his correspondence with his co-author, Béla Molnár, in 1935 and 1936. Information on the actual use of the textbook in schools was gathered from contemporary school notices. For the biography of Sass, we consulted Gyula Réz\u27s 1989 book, and for our knowledge of the history of machinery, we consulted János Estók\u27s 2001 volume. Our research is interdisciplinary since it enriches our understanding of agricultural history, the history of agricultural education, and the history of machinery and mechanical engineering, in addition to school history and textbook history.Írásunk a gépészmérnök Sass Gábor tankönyvírói munkásságát és Gazdasági géptan tankönyvét veszi górcső alá. Kiemelten támaszkodunk a szerző irathagyatékára, mely a Magyar Mezőgazdasági Múzeum és Könyvtár Agrártörténeti Iratok Gyűjteményének értékes darabja. Az iratcsomó a tankönyvről készült bírálati jelentéseket, a szerzői választ, a szerzőnek a mezőgazdasági gépgyárakkal folytatott levelezéseit, valamint a szerzőtárssal, Molnár Bélával folytatott 1935-ös és 1936-os levélváltásait is őrzi. A tankönyv tényleges iskolai használatára vonatkozó adatokat a korabeli iskolai értesítőkből gyűjtöttük ki. Sass életrajzához irathagyatéka mellett Réz Gyula 1989-es írását, géptörténeti ismereteink kiegészítéséhez Estók János 2001-es kötetét hívtuk segítségül. Kutatásunk interdiszciplináris kötöttségű, hiszen az iskolatörténeti és tankönyvtörténeti kutatások mellett az agrártörténeti, agrár szakoktatástörténeti, továbbá géptörténeti- és gépgyártástörténeti ismereteinket egyaránt gazdagítj
Entrainer selection for pressure swing batch distillation
No full textThe feasibility of the separation of binary homoazeotropes with pressure swing batch
distillation by the application of an entrainer is studied. The feasibility studies are based
on the assumption of maximal separation and on the analysis of batch
distillation/stripping regions and the vessel path in the residue curve map of the ternary
mixture. The following configurations are investigated: batch rectifier, batch stripper,
double column batch rectifier and double column batch stripper. Rules for the selection
of an entrainer are suggested
Who's who in the fifth Orbán government : old and new faces united by loyalty to the prime minister
No full textAuthor: Gábor Györ
Gábor Kézdi Memorial Conference – Conference Report
No full textThe Hungarian Economic Association organised a conference in memory of
Gábor Kézdi on 20 December 2021. Gábor Kézdi, one of the most influential
Hungarian economists of his generation, died last year at the age of 50. His
career as a researcher and teacher was an inspiration and an example not only
to the economics profession but also to the wider social science community
(including the author of these lines). His research addressed many topics of
interest to sociologists and social policy researchers, such as educational
inequalities, school segregation, prejudice and discrimination, the situation of
the Roma population in Hungary and empirical studies of the effects of social
policies. (...
Velem: Supplementary Material 3
No full textThis supplementary material is part of the 'Non-destructive Analysis of a Late Bronze Age Hoard from the Velem-Szent Vid Hillfort' article submitted to Journal of Archaeological Sciences in 2020.
Supplementary Material 3: LBA spearhead elemental composition (Carpathian Basin). Author: János Gábor Tarbay, Co-authors: Boglárka Maróti, Zoltán Kis, György Káli, László Szentmiklósi
The Life and Scientific Work of James Bryce, Author of "The Holy Roman Empire"
No full textDr. iur. DDr. h. c. Gábor Hamza, professor of law, full member of Hungarian Academy of
Sciences, analyses James Bryce’s work titled The Holy Roman Empire, pointing out its significance in the first half of the 21st centur
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