Temat: cleaning efficiency - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Efektywność czyszczenia nasion ogórecznika lekarskiego (Borago officinalis L.)
Efficiency of borrage seeds cleaning (Borago officinalis L.)
Autorzy:: Choszcz, D. J.
Jadwisieńczak, K. K.
Konopka, S.
Powiązania:: https://bibliotekanauki.pl/articles/289033.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Inżynierii Rolniczej
Tematy:: nasiona
ogórecznik lekarski
odpad
efektywność czyszczenia
borrage
seeds
waste
cleaning efficiency
Opis:: Przedstawiono wyniki badań nad możliwością odzyskiwania nasion ogórecznika lekarskiego wydzielanych do odpadu podczas czyszczenia. Stwierdzono, że wydzielenie nasion ogórecznika z odpadu przy stosowaniu tylko kanału aspiracyjnego lub sit jest mało skuteczne. Natomiast stosując czyszczenie w kanale aspiracyjnym, przy prędkości powietrza 5,5 m*s-1, a następnie na sicie o średnicy otworów 2,8 mm, można odzyskać ponad 60% nasion ogórecznika lekarskiego wydzielonych do odpadu, przy czystości produktu spełniającej wymagania dla materiału siewnego powyżej 97%. Podano również formuły matematyczne opisujące przebieg procesu rozdzielania.
Experimental results of possibility of retrieving borrage seeds realesed as waste during cleaning were presented. It was predicated that the retrieve of borrage seeds from waste with application of an aspiration channel or sieves is not effective enough. Whereas, applying cleaning in an aspiration channel with the air speed of 5.5 m*s-1, and then on a sieje with 2.8 mm meshes diameter, over 60% of borrage seeds my be retrieved from the seeds relesed as waste with the product purity that meets the requirements of sowable material over 97%. Moreover, a mathematical formula describing the course of separation process was presented.
Źródło:: Inżynieria Rolnicza; 2011, R. 15, nr 8, 8; 53-59
1429-7264
Pojawia się w:: Inżynieria Rolnicza
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Efektywność usuwania zanieczyszczeń ze ścieków w oczyszczalni hydrofitowej w Zwierkach
Evaluation of efficiency of sewage treatment plant in constructed wetland in Zwierki
Autorzy:: Ignatowicz, K.
Oksiuta, J.
Powiązania:: https://bibliotekanauki.pl/articles/402821.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:: przydomowa oczyszczalnia ścieków
hydrofit
efektywność oczyszczania
household sewage treatment plant
hydrophyte
cleaning efficiency
Opis:: W artykule przedstawiono wyniki badań efektywności przydomowej oczyszczalni ścieków ze złożem hydrofitowym w miejscowości Zwierki. W celu określenia efektywności pracy oczyszczalni ścieków pobierano do analizy próbki z poszczególnych jej elementów w latach 2017-2018. Poboru dokonywano z osadnika gnilnego, po złożu hydrofitowym oraz ze stawu tlenowego. Przeanalizowano otrzymane wyniki i ustalono wysoką efektywność usuwania związków organicznych oraz biogennych. Na podstawie badań i otrzymanych wyników stwierdzono dużą skuteczność usuwania związków organicznych określanych jako ChZT i BZT5, gdyż nastąpiło zmniejszenie stężenia o 74,19% i 93,80%.
The article presents results of research with household sewage treated by constructed wetland system in Zwierki. For effectiveness evaluation of sewage treatment plant sampling events were performed in 2017-2018. The samples were taken from: septic tank, after treatment in vertical flow constructed wetland and from aerobic pond. Efficiency of removal of organic matter as well as biogenic compounds was evaluated. Carried out investigation confirmed high efficiency of organic compounds removal BOD5 was up to 74,19% and COD up to 93,80%.
Źródło:: Budownictwo i Inżynieria Środowiska; 2018, 9, 3; 117-124
2081-3279
Pojawia się w:: Budownictwo i Inżynieria Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: The Parameters of Cleaning a CIP System Affected Energy Consumption and Cleaning Efficiency of the Plate Heat Exchanger
Autorzy:: Piepiórka-Stepuk, J.
Diakun, J.
Jakubowski, M.
Powiązania:: https://bibliotekanauki.pl/articles/185066.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: cleaning
CIP system
energy consumption
cleaning parameters
cleanliness
cleaning efficiency
czyszczenie
System CIP
zużycie energii
parametry czyszczenia
czystość
Opis:: This paper presents a study on the effect of cleaning factors on the energy consumption of the cleaning process in a CIP system, and the correlation between single components of electricity necessary to perform this process and the cleanliness degree obtained. Studies were carried out in a laboratory cleaning station, wherein a plate heat exchanger contaminated with hot milk was included. The research program was developed according to a 5-level statistical plan. Based on the results, obtained with Experiment Planner 1.0, a regression function of energy requirement considering variables such as: cleaning time, temperature and flow rate of the cleaning liquid via the cleaned exchanger has been developed. Describing this relationship, linear and quadratic functions with double interactions were used. Significance level for the analysis was established at α = 0.05. Correlation analysis between components of the electricity necessary to perform the cleaning process (pump drive and heating of the cleaning agent) and the resulting degree of cleaning of heat exchanger plates was performed.
Źródło:: Chemical and Process Engineering; 2017, 38, 1; 111-120
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Energetyczne aspekty procesu i skuteczności mycia płytowego wymiennika ciepła
Electrical energy aspects and cleanliness in the cleaning process in cip system a plate heat exchanger
Autorzy:: Piepiórka-Stepuk, J.
Diakun, J.
Powiązania:: https://bibliotekanauki.pl/articles/227606.pdf
Data publikacji:: 2014
Wydawca:: Wyższa Szkoła Menedżerska w Warszawie
Tematy:: mycie
CIP
skuteczność mycia
zużycie energii
cleaning
efficiency of cleaning
energy consumed
Opis:: W pracy zaprezentowanej w artykule podjęto próbę określenia zależności pomiędzy skutecznością mycia płyt płytowego wymiennika ciepła a ilością energii elektrycznej potrzebną do przeprowadzenia procesu. Uzyskane wyniki przedstawiono w postaci graficznej wyznaczając korzystne i niekorzystne warunki mycia w aspekcie energetycznym.
The paper attempts to define the relationship between the degree of cleaning plates the heat exchanger and the amount of energy needed to carry out the process. The results in graphical form, determining positive and negative conditions for cleaning in the aspect of energy consumed was shown at the figures.
Źródło:: Postępy Techniki Przetwórstwa Spożywczego; 2014, 2; 86-91
0867-793X
2719-3691
Pojawia się w:: Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Zwalczanie zapylenia w górnictwie polskim
Dust Control in Poland Mining
Autorzy:: Kuczera, Zbigniew
Ptaszyński, Bogusław
Powiązania:: https://bibliotekanauki.pl/articles/318422.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Przeróbki Kopalin
Tematy:: pyły szkodliwe
pylica płuc
urabianie mechaniczne
zraszanie
odpylacz mokry
odpylacz suchy
skuteczność odpylania
bezpieczeństwo pracy
damaging dusts
pneumoconiosis
mechanical dredging
mist
wet dust collector
dry dust collector
cleaning efficiency
safety work
Opis:: W artykule omówiono istniejące rodzaje pyłów, których powstawanie towarzyszy działalności górniczej, zwłaszcza przy urabianiu mechanicznym skał. płuc. Przedstawiono różne sposoby zwalczania zapylenia w górnictwie polskim, w tym omówiono zasadnicze typy stosowanych odpylaczy mokrych i suchych oraz przeprowadzono analizę ich skuteczności w odniesieniu do obowiązujących wartości granicznych (NDS) w aspekcie bezpieczeństwa pracy.
In this article various types of dust created by mining activities have been discussed. Especially the dust which is formed during mechanical rock-cutting. Classification of particular kinds of dust considering its particle size, silicose content as well as inhalation level has been discussed and effect on the pneumoconiosis. Different ways of polish mining dust suppression have been presented and their efficiency regarding maximum allowed concentration (MAC) have been analyzed in the work security aspect.
Źródło:: Inżynieria Mineralna; 2019, 21, 1/2; 181-187
1640-4920
Pojawia się w:: Inżynieria Mineralna
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Sposob ochistki krysh ehnergosberegajushhikh teplic ot snega
Method of snow cleaning roof energy-efficient greenhouse
Autorzy:: Opryshko, A.
Pasechnik, H.
Powiązania:: https://bibliotekanauki.pl/articles/77451.pdf
Data publikacji:: 2014
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:: greenhouse
snow
cleaning
energy efficiency
thermal radiation
analysis
Źródło:: Motrol. Motoryzacja i Energetyka Rolnictwa; 2014, 16, 3
1730-8658
Pojawia się w:: Motrol. Motoryzacja i Energetyka Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Investigation of gas gathering pipelines operation efficiency and selection of improvement methods
Autorzy:: Volovetskyi, V. B.
Doroshenko, Ya. V.
Kogut, G. M.
Dzhus, A. P.
Rybitskyi, I. V.
Doroshenko, J. I.
Shchyrba, O. M.
Powiązania:: https://bibliotekanauki.pl/articles/2055762.pdf
Data publikacji:: 2021
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: gas
gas gathering pipeline
hydraulic efficiency
liquid contamination
foam
inner cavity cleaning
gaz
rurociąg
sprawność hydrauliczna
piana
Opis:: Purpose: The article implies theoretical and experimental studies of the liquid pollution accumulations impact on the efficiency of gathering gas pipelines operation at the Yuliivskyi oil and gas condensate production facility (OGCPF). Research of efficiency of gas pipelines cleaning by various methods. Design/methodology/approach: The research methodology consists of determining the hydraulic efficiency of gathering gas pipelines before and after cleaning of their internal cavity by different methods and comparing the obtained results, which allows to objectively evaluate the efficiency of any cleaning method. CFD simulation of gas-dynamic processes in low sections of gas pipelines with liquid contaminants. Findings: Experimental studies of cleaning efficiency in the inner cavity of the gas gathering pipelines of the Yuliivskyi OGCPF by various methods, including: supply of surfactant solution, creating a high-speed gas flow, use of foam pistons were performed. It was established that cleaning the inner cavity of gas gathering pipelines by supplying a surfactant solution leads to an increase in the coefficient of hydraulic efficiency by 2%-4.5%, creating a high-speed gas flow by 4%-7%, and under certain conditions by 8%-10 % and more. However, for two gas pipelines the use of foam pistons allowed to increase the coefficient of hydraulic efficiency from 5.7 % to 10.5 % with a multiplicity of foam from 50 to 90. be recommended for other deposits.The results of CFD simulation showed that the accumulation of liquid contaminants in the lowered sections of gas pipelines affects gas-dynamic processes and leads to pressure losses above the values provided by the technological regime. With the increase in liquid contaminants volume the pressure losses occur. Moreover, with a small amount of contamination (up to 0.006 m3), liquid contaminants do not have a significant effect on pressure loss. If the contaminants volume in the lowered section of the pipeline is greater than the specified value, the pressure loss increases by parabolic dependence. The increase in mass flow leads to an increase in the value of pressure loss at the site of liquid contamination. Moreover, the greater the mass flow, the greater the impact of its changes on the pressure loss. The CFD simulation performed made it possible not only to determine the patterns of pressure loss in places of liquid contaminants accumulation in the inner cavity of gas pipelines, but also to understand the gas-dynamic processes in such places, which is an unconditional advantage of this method over experimental. Research limitations/implications: The obtained simulation results showed that the increase in the volume of liquid contaminants in the inner cavity of gas gathering pipelines leads to an increase in pressure losses above the value provided by the technological regime. To achieve maximum cleaning of gas gathering pipelines, it is necessary to develop a new method that will combine the considered. Practical implications: The performed experimental results make it possible to take a more thorough approach to cleaning the inner cavity of gas gathering pipelines and to forecast in advance to what extent the hydraulic efficiency of gas gathering pipelines can be increased. Originality/value: The obtained results of CFD simulation of gas-dynamic processes in lowered sections of gas pipelines with liquid contaminants, experimental studies of the effectiveness of various methods of cleaning the inner cavity of gas gathering pipelines has original value.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2021, 107, 2; 59--74
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Experimental effectiveness studies of the technology for cleaning the inner cavity of gas gathering pipelines
Autorzy:: Volovetskyi, V. B.
Doroshenko, Ya. V.
Tarayevs'kyy, O. S.
Shchyrba, O. M.
Doroshenko, J. I.
Stakhmych, Yu. S.
Powiązania:: https://bibliotekanauki.pl/articles/1818794.pdf
Data publikacji:: 2021
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: gas
foam
gas gathering pipeline
hydraulic efficiency
cleaning the inner cavity of pipelines
gaz
piana
rurociąg
sprawność hydrauliczna
Opis:: Purpose: The purposes of the article are to determine the hydraulic efficiency of two gas gathering pipelines of the Yuliivskyi oil and gas condensate production facility (OGCPF) and develop a set of measures to increase it; to experimentally determine the efficiency of using foams to increase the hydraulic characteristics of the gas gathering pipelines in the Yuliivskyi OGCPF; to develop a set of measures that will help to improve the hydraulic characteristics of gas gathering pipelines. Design/methodology/approach: The research methodology consists in determining the hydraulic efficiency of gas gathering pipelines before and after cleaning their inner cavity with foams with different expansion ratios and comparing the obtained values, which allows to objectively assess the efficiency of this cleaning method. The studies were performed within the framework of research and development work by the specialists of the Ukrainian Scientific Research Institute of Natural Gases. Findings: The pilot testing was carried out to determine the efficiency of cleaning the inner cavity of gas gathering pipelines with foams with different expansion ratios. It showed positive results. It was determined that cleaning the inner cavity of gas gathering pipelines with foams with the expansion ratio from 80 to 90 led to an increase in the hydraulic efficiency coefficient by 10.5%, and with foams with the expansion ratio from 50 to 60 - by 5.7%. The measures taken to clean the inner cavity of gas gathering pipelines from liquid contaminations have proven their efficiency and can be recommended for other fields. Research limitations/implications: The obtained results show that it is reasonable to conduct the experimental studies on the efficiency of cleaning the inner cavity of gas gathering pipelines with the foams with higher expansion ratios. To achieve the maximum quality of cleaning the gas gathering pipelines, it is necessary to develop a new method that will combine the use of foam and gel piston.Practical implications: The performed experimental studies help to take a more reasonable approach to cleaning the inner cavity of gas gathering pipelines with foams and to predict in advance the effect of the foam expansion ratio on the hydraulic efficiency of gas gathering pipelines. Originality/value: The experimental studies on the effect of foam expansion ratios on the hydraulic efficiency of gas gathering pipelines are original.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2021, 105, 2; 61--77
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Developing a set of measures to provide maximum hydraulic efficiency of gas gathering pipelines
Autorzy:: Volovetskyi, V. B.
Uhrynovskyi, A. V.
Doroshenko, Ya. V.
Shchyrba, O. M.
Stakhmych, Yu. S.
Powiązania:: https://bibliotekanauki.pl/articles/368779.pdf
Data publikacji:: 2020
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: well
gas
gas gathering pipeline
hydraulic efficiency
cleaning the inner cavity of pipelines
studnia
gaz
rurociąg
sprawność hydrauliczna
Opis:: Purpose: The purposes of this article are to study the effective ways of increasing the hydraulic efficiency of gas gathering pipelines of the Yuliivskyi oil and gas condensate production facility (OGCPF); to calculate the operation efficiency of gas gathering pipelines of the Yuliivskyi OGCPF and develop a set of measures to monitor their condition and improve their hydraulic characteristics; to investigate the technology of cleaning the inner cavity of flowlines of gas-condensate wells with foam, to perform the feasibility study on the prospects of its application in practice. Design/methodology/approach: The technology of cleaning the inner cavity of flowlines of gas-condensate wells with foam was investigated to objectively evaluate its application and determine the effectiveness of this measure. The research was carried out within the framework of research and development work by the specialists of the Ukrainian Scientific Research Institute of Natural Gases. Findings: The results of production studies showed that due to cleaning the flowlines of gas-condensate wells (No.85 and No.60) from the accumulation of liquid, the coefficients of their hydraulic efficiency increased by 12% and 7%, respectively. Measures taken to clean the inner cavity of the flowlines from liquid have proven their efficiency and can be recommended for other flowlines of wells at other production fields. Research limitations/implications: Based on the characteristics of gas gathering pipelines, it is reasonable to conduct experimental studies on the use of the proposed technology of cleaning the inner cavity with foam in the case of increasing its multiplicity. Practical implications: Using the wells of the Yuliivske oil and gas condensate field as case studies, the operating parameters were measured and the pressure losses along the length of the flowlines were calculated. According to the results of calculations at two wells (No.85 and No.60), a significant excess of the actual value of the flow friction characteristic over the theoretical value was established. To reduce excessive pressure losses due to the presence of liquid and improve the hydraulic characteristics of the wells, their inner cavities were cleaned using foam with the expansion ratio from 40 to 100. Originality/value: It is important to note that the advantages of foam piston include: ease of use, no occurrence of hydraulic shocks and preventing stuck during movement in the gas pipeline, application in both straight and inclined sections, no wear of the elements of the cleaning equipment, a rather efficient cleaning of gas pipelines.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2020, 101, 1; 27-41
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Research into the development of a hybrid spacer
Autorzy:: Kremieniewski, Marcin
Kędzierski, Miłosz
Powiązania:: https://bibliotekanauki.pl/articles/1834097.pdf
Data publikacji:: 2020
Wydawca:: Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:: hybrydowa ciecz buforowa
bufor
ciecz wyprzedzająca
oczyszczenie przestrzeni pierścieniowej
poprawa skuteczności
zacementowania
ciecz dwufunkcyjna
hybrid spacer
spacer
preflushes
cleaning of the annular space
improvement of cementing efficiency
bifunctional liquid
Opis:: While the cement slurry is being pumped, the drilling mud is removed in the annular space filled with it. The cement slurry pressed after the mud removes residues of mud sludge. In order to properly seal the borehole with cement slurry, which will prevent gas flow after binding, it is necessary to thoroughly clean the annular space from the mud sludge by pumping the sequence of preflush. First, the washing liquid is pumped, then the spacer, followed by the cement slurry. Obtaining a properly cleaned annular space before cementing undoubtedly improves sealing and allows to eliminate or reduce the possibility of the undesirable phenomenon of gas micro flows in the annular space. However, pressing the washing liquid to disperse the residue of the sludge and then pressing the spacer after it, which equalizes the rheological parameters between the pressed drilling fluids (low-viscous washing - cement slurry with much higher plastic viscosity) causes an increase in the costs of cementing. Therefore, it was decided to carry out research on the development of a hybrid spacer. The idea of research was that the spacer had a dual-purpose nature. On the one hand, the hybrid liquid was to act as a spacer (properly selected density, viscosity and structural strength), and on the other hand, the surfactants contained in the spacer were to clean the annular space prepared for cementation. The use of such a liquid reduces costs and shortens the preparation time for cementing. This article presents the results of research on the development of a hybrid spacer. Annular space purification studies were performed under simulated borehole conditions. The obtained research results allowed to state that the developed hybrid spacer has bifunctional properties and an improvement in the cleaning of the rock formation surface is visible compared to the washing liquids used so far. Unfortunately, a problem was also found regarding significant gelation of the mud during contact with the cement present in the spacer. It should be noted that these were pilot studies in which only a partial solution to the problem was achieved. The developed hybrid spacer requires further research to eliminate gelation of the mud during contact with the hybrid spacer. The discussed issue allows researchers themselves to familiarize themselves with the discussed subject, thanks to which in the future it will be possible to further develop given issues.
Źródło:: Nafta-Gaz; 2020, 76, 8; 517-526
0867-8871
Pojawia się w:: Nafta-Gaz
Dostawca treści:: Biblioteka Nauki

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