Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Z. Jegla"'
Publikováno v:
Chemical Engineering Transactions, Vol 61 (2017)
Waste-to-energy (WtE) units represent specific technologies that process problematic raw materials (i.e., wastes) and deal with equally problematic products such as flue gasses or solid residues (these often induce fouling and are considerable pollut
Externí odkaz:
https://doaj.org/article/eb2e0ffe70e04c60b09c416e9031620e
Publikováno v:
Chemical Engineering Transactions, Vol 52 (2016)
The tube coil in real fired heater after some use deviates from the ideal designed geometry. The tubes slightly bend and depending on the quality of the hooks on which they are suspended, they may also shift from their design positions. Such behaviou
Externí odkaz:
https://doaj.org/article/e0300400568e45e287d8863fb648c98e
Autor:
Z. Jegla
Publikováno v:
Chemical Engineering Transactions, Vol 52 (2016)
The paper presents validation of innovative adaptation of modified plug flow (MPF) model to recognition of thermal behaviour of industrial system of low emission gas fuel burners operated in radiant chamber of vertical cylindrical fired heater placed
Externí odkaz:
https://doaj.org/article/daaa74217cba418886e0dab0da1d66e0
Autor:
B. Kilkovský, Z. Jegla
Publikováno v:
Chemical Engineering Transactions, Vol 52 (2016)
Heat regenerators transfer heat from one gas to another, with by storage in solids. This type of heat exchanger is used primarily when heat has to be transferred between enormous amounts of gases, when the gases are dirty and liable to plug up the re
Externí odkaz:
https://doaj.org/article/cc77497287174a76955e2b646a431f5f
Publikováno v:
Chemical Engineering Transactions, Vol 52 (2016)
Possible ways to model flow distribution and pressure drop in process and power equipment containing porous elements (e.g. tube sheets of dense tube bundles of recuperative heat exchangers, matrices of regenerative heat exchangers, packed beds of cat
Externí odkaz:
https://doaj.org/article/4a3c0f726a404b0eaa770b0401a6a1db
Publikováno v:
Chemical Engineering Transactions, Vol 45 (2015)
The paper discusses results of the next stage of development of the so-called Modified Plug-Flow Furnace Model (MPF) which was in its initial formulation originally presented two years ago. The MPF model is intended for calculation of heat flux distr
Externí odkaz:
https://doaj.org/article/27f70106f8884fb7a02b6eb5bb7cf1d0
Publikováno v:
Chemical Engineering Transactions, Vol 45 (2015)
It is imperative that flow distribution is considered while designing heat exchanger tube bundles because it greatly influences equipment performance. What is more, a wide range of operating issues can occur if the distribution is significantly non-u
Externí odkaz:
https://doaj.org/article/8ecd975611014d9abb08c84ef0b86153
Publikováno v:
Chemical Engineering Transactions, Vol 45 (2015)
Laboratory of Energy Intensive Processes placed in the building of NETME Centre, Faculty of Mechanical Engineering, Brno University of Technology, is a research laboratory focused on increasing efficiency of industrial plants. Current research in the
Externí odkaz:
https://doaj.org/article/cad7ea0d07024b82a22aaa6ebef4f69d
Publikováno v:
Chemical Engineering Transactions, Vol 39 (2014)
Complex numerical computations are performed for vertical cylindrical fired heater operated in crude oil atmospheric distillation unit to analyse the distribution of heat flux on the tubes of radiant section. The numerical model describes flow, gas c
Externí odkaz:
https://doaj.org/article/dd40847c4e0d49379de80d57068dae8e
Publikováno v:
Chemical Engineering Transactions, Vol 39 (2014)
A simpli?ed model of a radial hydrocarbon reforming catalytic converter is presented. It focuses on ?uid ?ow, distribution along the annular catalytic packed bed, and overall pressure drop. As for the chemistry aspect of the problem or possible issue
Externí odkaz:
https://doaj.org/article/32947d7a105e46a59eba6394050fbc20