Temat: anemometria obrazowa - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Characteristics of single wood particle pyrolysis using particle image velocimetry
Autorzy:: Kluska, J.
Ronewicz, K.
Kardaś, D.
Powiązania:: https://bibliotekanauki.pl/articles/240493.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: pyrolysis
particle image velocimetry
gas cushion
piroliza
anemometria obrazowa
poduszka gazowa
Opis:: This study examines the pyrolysis of a single cylindrical wood particle using particle image velocimetry (PIV). The pyrolysis was conducted inside a pyrolysis reactor designed for this purpose. The experimental setup presented in this paper is capable of effectively characterizing the intensity of pyrolysis based on velocity distribution in the vicinity of wood particles. The results of the gas velocity distribution show that evaporation of moisture has as a major impact on the formation of the gas cushion as devolatilization.
Źródło:: Archives of Thermodynamics; 2018, 39, 2; 3-13
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: The use of liquid crystal thermography TLC and particle image velocimetry PIV in selected technical applications
Autorzy:: Stąsiek, J. A.
Jewartowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/240403.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: liquid crystal thermography
particle image velocimetry
heat transfer
fluid flow visualization
termografia ciekłokrystaliczna
cyfrowa anemometria obrazowa
transport ciepła
Opis:: Nowadays, the energy cost is very high and this problem is carried out to seek techniques for improvement of the aerothermal and thermal (heat flow) systems performances in different technical applications. The transient and steady-state techniques with liquid crystals for the surface temperature and heat transfer coefficient or Nusselt number distribution measurements have been developed. The flow pattern produced by transverse vortex generators (ribs) and other fluid obstacles (e.g. turbine blades) was visualized using liquid crystals (Liquid Crystal Thermography) in combination with the true-colour image processing as well as planar beam of double-impulse laser tailored by a cylindrical lens and oil particles (particle image velocimetry or laser anemometry). Experiments using both research tools were performed at Gdańsk University of Technology, Faculty of Mechanical Engineering. Present work provides selected results obtained during this research.
Źródło:: Archives of Thermodynamics; 2018, 39, 3; 129-147
1231-0956
2083-6023
Pojawia się w:: Archives of Thermodynamics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Application of PIV method to study the speed distribution of oil mist particles in the orthogonal cutting process
Autorzy:: Wójcik, R.
Stachurski, W.
Powiązania:: https://bibliotekanauki.pl/articles/95346.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: orthogonal cutting
MQL
particle image velocimetry
PIV
cutting force
skrawanie ortogonalne
smarowanie minimalne
cyfrowa anemometria obrazowa
siła skrawania
Opis:: The paper presents the use of the PIV method in experimental studies on the speed distribution of oil particles contained in oil mist delivered into a cutting zone with minimum quantity (MQL). During investigations an orthogonal sample was of an aluminum alloy PA7N was machined using HS18-0-1 high-speed steel cutter. The oil mist was delivered into the cutting zone by a single spray nozzle directed at the tool rake surface. Two angular settings of the spray nozzle were applied in relation to the surface of the machined sample. Based on the images obtained by the PIV method, the distribution of the oil particles in the cutting area was determined according to the setting the spray nozzle. Studies have indicated more favorable conditions for the delivery of oil mist at the angle of spray nozzle at 85°. These conclusions were confirmed by measuring the cutting force in tangential direction to the machined surface.
Źródło:: Journal of Mechanical and Energy Engineering; 2017, 1, 1; 51-55
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Identification of the flow pattern of liquid streams in the shell-side of a segmental-baffled shell-and-tube heat exchanger
Autorzy:: Ligus, G.
Zając, D.
Kołodziej, S.
Powiązania:: https://bibliotekanauki.pl/articles/95380.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: PIV
particle image velocimetry
shell and tube heat exchanger
tube bundles
leakage stream
bypass stream
anemometria obrazowa
wymiennik płaszczowo-rurowy
wiązki rur
strumień wycieku
strumień obejściowy
Opis:: Shell-and-tube heat exchangers are widely used in chemical and process engineering. Assessing hydrodynamics of fluid flow in their shell-side is a highly complex task. This results from the complex geometry of the shell-side itself, defined by such parameters as the tubesheet layout, tube diameter, baffle spacing or baffle cut. Shell-and-tube heat exchangers are the subject of many studies in which design and flow parameters are analysed. However, only a few studies concentrate on issues strictly related to the identification of streams of the liquid flowing in the shell-side of apparatus on an industrial scale. In this article, the authors present the results of an experimental visualization study, utilizing Particle Image Velocimetry (PIV). The experiment used a laser sheet technique along and across a tube bundle. The main results of the measurements and analyses concentrate on identifying the flow pattern of streams in the shell-side and assessing stagnation vortices and their consequences. Finally, detecting bypass streams and leakage streams flowing through design gaps between the shell and the tube bundle as well as between the baffles and the tubes in the bundle are presented.
Źródło:: Journal of Mechanical and Energy Engineering; 2018, 2, 3; 245-256
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

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