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Wyszukujesz frazę "power consumption" wg kryterium: Temat


Tytuł:
Specific features and models of electric power consumption by household - type consumers
Autorzy:
Frąckowiak, R.
Gałan, T.
Powiązania:
https://bibliotekanauki.pl/articles/97403.pdf
Data publikacji:
2012
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
electric power consumption
power consumption
power network
electrical energy
Opis:
In the paper, the results of analysis of the load curves for the household - type consumers fed from the LV electric power network are presented. In the study, the influence of the sunset time and ambient temperature on the electric load curves has been assessed and, consequently, the specific features of the graphs for the allocated consumer groups have been defined. Also, suitable models considering the impact of the observed factors on the electrical energy consumption have been developed. Energy consumption in the tariff zones by the consumers settled according to G12 tariff has been of special interest.
Źródło:
Computer Applications in Electrical Engineering; 2012, 10; 264-274
1508-4248
Pojawia się w:
Computer Applications in Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecological Aspects in the Process of Turning Cast Iron with Coated Tools
Autorzy:
Jenek, Mariusz
Ociepa, Michał
Woźniak, Waldemar
Vilamová, Šárka
Švecová, Eva
Powiązania:
https://bibliotekanauki.pl/articles/2174910.pdf
Data publikacji:
2022
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
machining
PVD coating
machine power consumption
Opis:
The article presents the research results on the influence of the PVD coating on the cutting tool on the surface roughness and energy consumption in the cast iron turning process. It was shown that using coated tools leads to obtaining a surface qualitatively corresponding to the ground surface and to reducing the power consumption of the machine tool. In addition, the process itself, carried out without a cooling and lubricating liquid, is more eco-friendly, as it excludes its use, disposal and negative environmental impact.
Źródło:
Rocznik Ochrona Środowiska; 2022, 24; 360--370
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Continuous wavelet and Hilbert-Huang Transforms applied for analysis of active and reactive power consumption
Autorzy:
Avdakovic, S
Bosovic, A.
Powiązania:
https://bibliotekanauki.pl/articles/221580.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
active power consumption
reactive power consumption
continuous wavelet transform (CWT)
empirical mode decomposition
Hilbert-Huang transform
Opis:
Analysis of power consumption presents a very important issue for power distribution system operators. Some power system processes such as planning, demand forecasting, development, etc.., require a complete understanding of behaviour of power consumption for observed area, which requires appropriate techniques for analysis of available data. In this paper, two different time-frequency techniques are applied for analysis of hourly values of active and reactive power consumption from one real power distribution transformer substation in urban part of Sarajevo city. Using the continuous wavelet transform (CWT) with wavelet power spectrum and global wavelet spectrum some properties of analysed time series are determined. Then, empirical mode decomposition (EMD) and Hilbert-Huang Transform (HHT) are applied for the analyses of the same time series and the results showed that both applied approaches can provide very useful information about the behaviour of power consumption for observed time interval and different period (frequency) bands. Also it can be noticed that the results obtained by global wavelet spectrum and marginal Hilbert spectrum are very similar, thus confirming that both approaches could be used for identification of main properties of active and reactive power consumption time series.
Źródło:
Metrology and Measurement Systems; 2014, 21, 3; 413-422
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Power and Energy Consumption for Hard Turning and Burnishing Operations of 41CR4 Steel
Autorzy:
Chudy, R.
Grzesik, W.
Powiązania:
https://bibliotekanauki.pl/articles/99749.pdf
Data publikacji:
2015
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machine tool
power consumption
hard turning
burnishing
Opis:
This paper presents a new power measurement system which allows recording the power consumption profile and determining its components related to all the controlled axes. The system is based on computer processing of signals generated by current and voltage sensors connected to spindle and axis driving electric motors. It should be noted that these motors are controlled independently with different frequencies and voltages. By using LabVIEW data acquisition system, it is possible to record total power consumption and its components during a typical machining operation. This study concerns the power consumption in a sequence machining process consisting of hard turning and ball burnishing operations under variable machining conditions.
Źródło:
Journal of Machine Engineering; 2015, 15, 4; 113-120
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Energy consumed by valves in conventional water systems and the application of a power-decentralization system
Autorzy:
Fu, Y.
Cai, Y.
Zhang, Z.
Wu, K.
Powiązania:
https://bibliotekanauki.pl/articles/1955328.pdf
Data publikacji:
2006
Wydawca:
Politechnika Gdańska
Tematy:
power-centralized system
power-decentralized system
valves' power consumption
valve
Opis:
The power consumption by valves of a conventional (i.e. power-centralized) water system is analyzed on the example of a water heating system in order to evaluate the extent of energy savings achievable in a power-decentralized system. The configuration and appli-cation of a power-decentralized system is briefly discussed.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2006, 10, 3; 311-320
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of sequential machining processes in terms of power consumption and surface quality
Autorzy:
Chudy, R.
Grzesik, W.
Powiązania:
https://bibliotekanauki.pl/articles/100080.pdf
Data publikacji:
2016
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
hard turning
ball burnishing
power consumption surface finish
Opis:
This paper presents the practical application of a power measurement system based on computer processing of signals generated by current and voltage sensors connected with spindle and axis driving electric motors. By using LabView data acquisition system, the total power and its components were recorded during machining operations. The experimental study concerns the power consumption and surface roughness produced in a sequential machining process consisting of hard turning and ball burnishing operations under variable machining parameters. In particular, some machining routines including finish hard machining and both single and multi-pass ball burnishing of hard surfaces were performed and compared. Finally, the optimization procedure based on these technological criteria was proposed.
Źródło:
Journal of Machine Engineering; 2016, 16, 3; 67-74
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design and Implementation of Wireless Module Based on ZiGBee for Applications in Machine Tools
Autorzy:
Kasprzak, M.
Powiązania:
https://bibliotekanauki.pl/articles/100139.pdf
Data publikacji:
2015
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machine tool
wireless modules
structure
tests
ZigBee
power consumption
Opis:
This paper presents a concept of a wireless measuring system based on ZigBee modules, and the stages in its implementation. The distinctive feature of the built measuring systems is their high resistance to environmental conditions. To a large extent this was achieved through the use of induction charging. The effectiveness of this solution was determined by comparing it with conventional charging. The measuring modules built in accordance with this concept were tested in the work space of a machine tool during milling. Special attention was paid to the amount of power consumed by the tested modules during different modes of their operation. The response time of the modules during their operation in the work space of the working machine tool and in the case when the modules were completely immersed in water was tested. By comparing the measured response times the effect of the above factors on the correctness of operation of the measuring system was determined.
Źródło:
Journal of Machine Engineering; 2015, 15, 4; 133-143
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diesel-locomotive switcher’s modernisation by hybrid transmission of power
Modernizacija manevrovogo teplovoza gibridnojj peredachejj moshhnosti
Autorzy:
Falendish, A.
Volodarets, N.
Bragin, N.
Powiązania:
https://bibliotekanauki.pl/articles/793677.pdf
Data publikacji:
2012
Wydawca:
Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:
hybrid transmission
power consumption
energy store
power plant
diesel locomotive
modernization
Źródło:
Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 4
1641-7739
Pojawia się w:
Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of broadband power line communication module for automatic meter reading
Autorzy:
Chen, Xia
Liu, Ling
Powiązania:
https://bibliotekanauki.pl/articles/949869.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
automatic meter reading
low-power consumption
long-distance transmission
power line communication
Opis:
Low-power consumption and long-distance transmission are two problems that have to be solved by the application of broadband power line communication for the automatic meter reading system. To reduce the power consumption of the communication module, based on the analysis of the composition of the power consumption, some methods are proposed. From the communication chip level and the module circuit level, the design scheme of low-power consumption is given. To solve the problem of transmission distance, a frequency band of 2.44 MHz~5.6 MHz is used as the main working frequency band. The communication module supports multiple frequency bands. Using this feature, the optimal frequency band is adaptively selected for communication and automatic switching, which further improve the transmission distance. Field application shows that the above methods effectively decrease the power consumption of the communication module and extend the transmission distance.
Źródło:
Archives of Electrical Engineering; 2020, 69, 4; 771-780
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of Selected Energy Parameters in the Supply System of a Model Vibratory Unit
Autorzy:
Ziółkowski, E.
Skrzyński, M.
Powiązania:
https://bibliotekanauki.pl/articles/380714.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
model of vibratory unit
selected energy parameters
active power consumption
apparent power consumption
model jednostki wibracyjnej
wybrane parametry energii
zużycie energii
pobór mocy
Opis:
The article presents the results of selected energy parameters calculations, carried out for the recorded values of instantaneous voltages and currents in the three-phase power supply of the model vibratory unit. The parameters were the values of active and apparent power taken from the drive consisting of two electric motors supplied by the inverter for selected frequency settings and directly from the power grid. In addition, calculations of tgφ power factor values were made to evaluate the compensation of reactive power consumption in the tested power systems. Measurements and calculations lead to the conclusion that if the frequency of the inverter output voltage rises, the active and apparent power consumed by the model vibratory drive unit increases. The active and apparent power for setting the output frequency of the inverter from 50 Hz was less than the active and apparent power taken by the model vibratory unit that was powered directly from the power grid. The power factor tgφ in the power supply system was approximately 6, except one case (f = 30 Hz).
Źródło:
Archives of Foundry Engineering; 2018, 18, 1; 145-150
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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