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Wyświetlanie 1-2 z 2
Tytuł:
New ideas of micro-bearings lubrication
Autorzy:
Wierzcholski, K.
Łupicka, O.
Jaworek, A.
Powiązania:
https://bibliotekanauki.pl/articles/245337.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
new ideas slide micro-bearings
micro-bearings
micro-robots
memory of carrying capacity
artificial intelligence
Opis:
In this paper are presented the possibilities to attain the artificial intelligence features of slide micro-bearings taking into account: 1.           Cooperation between super thin boundary lubricant layer and thin superficial layer lying on the micro-bearing shaft and sleeve with various shapes. 2.           Application of a novel method of depositing thin organic and inorganic layer (superficial layer) onto a metal substrate utilizing electro-spraying (electrostatic atomization) method. The new achievements presented in this paper are aimed at application of this technology to functional layer deposition in micro-bearings. Electro-spraying is a low-energy process of liquid atomisation by means of electrical forces. Electro-spraying device consists of a capillary nozzle connected to a high electric potential whereas the substrate is grounded. The liquid flowing out the nozzle is subjected to an electrical stress, and fine droplets are generated from the meniscus or the jet formedat the nozzle outlet. Depending on physical properties of the liquid to be spraye dań d spraying conditions, the size of the droplets can be in the submicron size range. In the electro-spraying process, a solution or a suspension of a material to be deposited is atomised into droplets, which can be targeted onto a substrate to form a condensed product, for example a thin layer after solvent evaporation. The deposition efficiency of charged droplets on a target is much higher than for uncharged ones due to electric forces, which drive the droplets along the electric filed lines towards the substrate.
Źródło:
Journal of KONES; 2009, 16, 4; 493-498
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abatement of particulate matter and SO2 emission by ships
Autorzy:
Jaworek, A.
Krupa, A.
Marchewicz, A.
Sobczyk, A.
Czech, T.
Ottawa, A.
Śliwiński, Ł.
Antes, T.
Kurz, M.
Szudyga, M.
Charchalis, A.
Powiązania:
https://bibliotekanauki.pl/articles/245025.pdf
Data publikacji:
2016
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
marine transport
diesel exhausts
air pollution control
environment protection
PM removal
Opis:
Ship engines emit noxious gases (SO2, NOx, and VOC) and particulate matter (PM), mostly black carbon. Since 1990, the International Maritime Organization (IMO) regulations gradually restricted the level of emission of NOx, which since 2016 have to be lower than 2-3.4 g/kWh, depending on engine power. SO2 emission reduction has begun since 2010 and now the content of sulphur in marine fuels is limited to 3.5%. At the same time, the Sulphur Emission Control Areas (SECA) has been established, at which the sulphur content in fuel cannot be higher than 0.1%. Since 2020, only a fuel of 0.5% sulphur can be used at all cruising areas outside SECA. It should be noted that due to lack of efficient technology, IMO still has not issued regulations regarding the PM emission by ships. The paper discusses various electrostatic techniques used for the reduction of PM emission in Diesel engine exhausts. Electrostatic scrubber systems, using seawater, allow removal of PM from exhausts with high efficiency and simultaneously SO2 gas. Electrostatic agglomerators allow increasing submicron and nanoparticles by coagulation of those particles to the larger ones, which could be removed by conventional techniques.
Źródło:
Journal of KONES; 2016, 23, 4; 183-192
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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