Temat: Energy Consumption - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Electrical energy consumption by the household - type consumers
Autorzy:: Frąckowiak, R.
Gałan, T.
Tematy:: electrical energy consumption
PTPiREE
forecast energy consumption; Pokaż więcej
Wydawca:: Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Powiązania:: https://bibliotekanauki.pl/articles/97411.pdf Link otwiera się w nowym oknie
Opis:: In the paper, selected results of analysis of the electrical energy consumption by the household-type consumer group as well as results for energy defined regarding the standard profiles for such a group are presented. In the analysis, a developed tailored IT tool has been used.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of trolleybus energy consumption
Autorzy:: Siemionek, E.
Tematy:: energy consumption
trolleybuses; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/103282.pdf Link otwiera się w nowym oknie
Opis:: Developing energy-saving solutions in vehicle construction and operation has become a priority in the automotive sector. For this reason, zero-emission and low-noise trolleybuses have started to play a significant role in urban public transportation. The paper discusses the methodology and results of energy consumption analysis for trolleybus travel on a determined route. For a given section of the route, energy recovery under braking was calculated.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Energy Consumption in Tram Transport
Autorzy:: Kuminek, Tomasz
Tematy:: tram
energy consumption
measurements; Pokaż więcej
Wydawca:: Międzynarodowa Wyższa Szkoła Logistyki i Transportu
Powiązania:: https://bibliotekanauki.pl/articles/504377.pdf Link otwiera się w nowym oknie
Opis:: Rail transport through the use of electric traction is more friendly for environment than other means of transport. It has a lot of benefits, mainly: the possibility of mass transport using as little energy as possible per one passenger, reducing crowd, reducing congestion, lower emission of pollution, weatherproof, more safety, regularity of travelling. As we can see from the above mentioned benefits, public tram transport is one of the most popular means in Poland. Tram market in Poland is one of the largest in the world. Nowadays we have 14 thousand tram lines used by 16 companies, which gives a total of above 3600 cars. We have many types of trams exploited at present. The most popular are cars 105Na, characterized by low comfort for passengers, too low durability and high energy consumption. Because these cars are at present exploited, on the basis of their structure many different modernizations are made. The examples could be two types of cars : 204WrAs and 205WrAs , which have been produced since 2005 by the Wrocław PROTRAM Company. The largest Polish cities also use a modern trams stock produced by the largest Polish construction companies. One of the examples is recently using five-cars type 120Na produced by PESA company. This article presents results of measurements of energy consumptions of trams 105Na using traditional start –up resistance and trams PROTRAM 205WrAs type with asynchronous propulsion system in IGTB technology. Then the energy consumption is compared with data obtained from manufacturer of a modern tram PESA 120Na, working in the same conditions – asynchronous propulsion system.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Methodology of forecasting and forecast of demand for energy carries by lorries in POland up to the year 2020 (Part II)
Autorzy:: Gis, W.
Menes, E.
Waśkiewicz, J.
Tematy:: lorries
energy consumption
forecast; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/241669.pdf Link otwiera się w nowym oknie
Opis:: Discussed methodology of forecasting and forecast of demand for energy carriers have been presented in two parts. In first part has been given forecast of freight road transport volumes up to the year 2020. Estimated structure of the fleet in the initial period of the forecast. Variant forecast of the fleet size and its structure according to categories and age. In this part has been given forecast of demand for energy carriers by lorries. When forecasting the scale of demand for individual energy carriers by lorries in a given year, the following issues were taken into account: estimated numbers of vehicles registered according to categories and production periods, an estimated average consumption offuels per 100 km of mileage according to specified categories of vehicles and their production periods, estimated average annual mileages of vehicles according to categories and production periods. A drop in the use of petrol by lorries in Poland is expected to have taken place by the year 2020. The estimated forecast level amounts to 315-325 Gg. The use of petrol in 2020 would decrease to the level of 55-57% of the consumption in the initial period of the forecast. An estimated increase in the demand for diesel fuels by lorries is expected to take place in Poland in 2020 and it is envisaged to reach the level of 5848-7680 Gg, which compared to the consumption in the initial period of the forecast, would be tantamount to an increase dynamics of 170-223%. The demand for LPG fuels by lorries in 2020 should amount to 264-287 Gg, (an increase of 147-160% compared to the initial period of the forecast). The demand for CNG fuel by lorries in 2020 would reach 61-68 Gg.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Research on energy consumption by an electric automotive vehicle
Badanie zużycia energii przez samochód elektryczny
Autorzy:: Chłopek, Zdzisław
Wydawca:: Scientific Publishing House of PIMOT
Opis:: Dominika Trębacz
In recent years, dynamic development of electric drives in automotive applications has taken place. This has chiefly been driven by ecological considerations, in particular pollutant and noise emissions and the depletion of the natural resources necessary for the production of liquid and gaseous fuels. For the energy characteristics of electric automotive vehicles to be assessed, the energy consumption by such vehicles must be tested in conditions corresponding to the actual operation conditions. In this paper, formal description of energy and economic characteristics of electric automotive vehicles has been proposed. The notions of efficiency of vehicle drive, efficiency of battery charging, efficiency of braking energy recuperation, total efficiency, and distance energy consumption by vehicles without and with braking energy recuperation have been introduced. Results of testing a Zilent Courant electric passenger car in conditions simulating the urban operation of such a vehicle have been presented. The Zilent Courant car has no braking energy recuperation system. The tests were carried out on a chassis dynamometer according to the procedures defined as UDC (Urban Driving Cycle), FTP 75 (Federal Transient Procedure), and Stop-and-Go test procedure intended to simulate the street jam traffic type. The average distance energy consumption and total vehicle efficiency was determined in the tests. The distance energy consumption was also tested in selected dynamic conditions of vehicle operation: the average values of distance energy consumption at positive and negative vehicle acceleration were determined.
Dostawca treści:: Repozytorium Centrum Otwartej Nauki

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Skocz do pozycji: 6.

Tytuł:: Estimation of energy demand in a territorial government unit - methodological problems
Szacowanie zapotrzebowania na energię jednostki terytorialnej - problemy metodyczne
Autorzy:: Kowalczyk-Juśko, A.
Kościk, B.
Tematy:: energy balance
energy demand
energy consumption
methodology; Pokaż więcej
Wydawca:: Akademia Bialska Nauk Stosowanych im. Jana Pawła II w Białej Podlaskiej
Powiązania:: https://bibliotekanauki.pl/articles/2051742.pdf Link otwiera się w nowym oknie
Opis:: Subject and purpose of work: The aim of the study is to identify methodological problems, which may be encountered during the preparation of the energy balance of a territorial unit, along with indications of ways to solve them. Materials and methods: Problems were identified during the preparation of the energy balance for two selected rural communes and then they were investigated with reference to the literature on this subject. Results: Estimating the energy demand of a local government unit requires proper identification of the groups of energy consumers, divided into facilities owned or co-owned by communes and ones independent from commune authorities. The latter group is divided further, into households, businesses, farms. For each of the users different methods of obtaining data may be needed: a survey and analysis of statistical data, analysis of financial documents, evaluation of the buildings’ age. Generally, however, preparing an energy balance statement requires many simultaneous approaches, and the combination of multi-criterion analysis provides the most reliable picture of the problem. Conclusions: The scope of the data needed to compile an energy balance statement for local government units, depends on the purpose of the developed analysis. Methodological handbooks and training materials on this subject are helpful, but the developed methodologies may need to be modified and adapted to specific conditions.
Przedmiot i cel pracy: Celem pracy jest wskazanie problemów metodycznych, na jakie napotkać można podczas sporządzania bilansu energetycznego jednostki terytorialnej, wraz ze wskazaniami sposobów ich rozwiązania. Materiały i metody: Problemy zidentyfikowano podczas sporządzania bilansu energetycznego dwu wybranych gmin wiejskich, a następnie skonfrontowano z literaturą przedmiotu. Wyniki: Oszacowanie zapotrzebowania na energię w jednostce samorządu terytorialnego wymaga właściwego określenia grup odbiorców energii w podziale na obiekty będące własnością lub współwłasnością gminy oraz niezależne od władz gminy. Druga grupa dzieli się dalej, na gospodarstwa domowe, przedsiębiorstwa, gospodarstwa rolne. Dla każdej z grup odbiorców mogą być potrzebne odmienne metody pozyskania danych: badanie ankietowe, analiza danych statystycznych, analiza dokumentów finansowych, ocena wieku budynków. Najczęściej jednak sporządzenie bilansu energetycznego wymaga stosowania wielu podejść równocześnie, a połączenie wyników analizy wielokryterialnej daje najbardziej rzetelny obraz badanego problemu. Wnioski: Zakres danych, potrzebnych do sporządzenia bilansu energetycznego jednostki samorządu terytorialnego, zależy od celu opracowania analizy. Poradniki metodyczne i materiały szkoleniowe na ten temat są pomocne, jednak opracowane metodyki mogą wymagać modyfikacji i dostosowania do konkretnych warunków.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The Problem of Energy-Consuming Processes in the Planning of Modern Manufacturing Technologies
Autorzy:: Rusek, P.
Wantuch, E.
Zagórski, K.
Tematy:: energy consumption
planning
technological process; Pokaż więcej
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:: https://bibliotekanauki.pl/articles/99607.pdf Link otwiera się w nowym oknie
Opis:: Despite the application of a series of universally acknowledged procedural principles, the manufacture of elements is a process in which the skills and professional experience of the planner are of continued importance. This leads to a certain degree of subjectivity in evaluation as well as to arbitrariness and variety in the solutions presented by process engineers. By introducing evaluations of the energy consumption of processes as an additional criterion, it is possible to make planning more objective, to reduce arbitrariness in the selection of production technologies, and to reduce energy consumption and manufacturing costs. An example of the application of energy consumption indices in the design of a selected manufacturing process is given in this article.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Implementation of Selected Spectrum Sensing Systems for Cognitive Radio Networks using FPGA Platform
Autorzy:: Abdullah, H. N.
Abed, H. S.
Tematy:: cognitive radio
energy consumption
energy detection
FPGA; Pokaż więcej
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Powiązania:: https://bibliotekanauki.pl/articles/958080.pdf Link otwiera się w nowym oknie
Opis:: The energy efficient spectrum sensing method is very important in cognitive radio (CR), since high power drain may limit its implementation in mobile applications. The spectrum sensing feature consumes more energy than other functional blocks, as it depends on continuous detection of the presence or absence of the primary user (PU). In this paper, we proposed two methods to reduce energy consumption of the spectrum sensing feature. The ﬁrst is of a single stage variety with a reduced number of sensed samples. The other uses two stages. The ﬁrst stage performs coarse sensing for many subchannels, and the best subchannel is forwarded for ﬁne sensing in the second stage. The performance of the proposed methods is evaluated in AWGN channel and compared with the existing approach. The proposed methods are simulated using Matlab and ModelSim and are then hardware implemented using the Altera Cyclone II FPGA board. Simulation results show that the proposed methods oﬀer an improvement in energy consumption with an acceptable reduction in the probability of detection. At Eb/N0 Eb/N0 Eb/N0 of 0 dB, the energy consumption is reduced by 50% and 72% in the ﬁrst and second proposed method, respectively, compared to the traditional method (100% sensing).
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Specific energy consumption – the comparison of belt conveyors
Autorzy:: Suchorab, Natalia
Tematy:: belt conveyor
energy efficiency
specific energy consumption; Pokaż więcej
Wydawca:: Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Powiązania:: https://bibliotekanauki.pl/articles/89009.pdf Link otwiera się w nowym oknie
Opis:: Belt conveyors (BCs), because of their high efficiency, are widely used for bulk material handling in the mining industry. However, due to the high level of conveyors' energy consumption, the belt conveyor systems generate a large part of mining costs. Therefore, the current solutions mostly focus on implementing new management strategies, which find energy consumption as a key indicator in designing belt conveyor systems. Belt conveyor equipment selection, conveying systems, operation, applied mining technology are considered to be areas where improvement of belt conveyors' energy efficiency may be achieved. Moreover, they can be used to implement novel standards for BC equipment and the proposal of defining new quality standards and creating BCs' classification has been already outlined. The main idea of the paper is to compare the values of specific energy consumption (SEC) of BCs with regard to the inclination angle of a conveyor route which results from technological needs. The multiple regression is used to find a relationship between two basic independent variables – the volume of transported material and conveyor's inclination angle – and a dependent variable (SEC). The procedure enables to determine the value of SEC which is required for lifting the material. Presented results prove that the value of SEC required for lifting the material is crucial for the interpretation of the SEC value when it comes to energy efficiency comparison.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Analysis of Energy Consumption in the Facilities of the Ciechanów Dairy Cooperative
Autorzy:: Gugała, M.
Zarzecka, K.
Kapela, K.
Sikorska, A.
Tematy:: electric energy
energy consumption
facilities
dairy cooperative; Pokaż więcej
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Powiązania:: https://bibliotekanauki.pl/articles/124580.pdf Link otwiera się w nowym oknie
Opis:: The work presents the analysis of electric energy consumption in individual buildings of the Ciechanów Dairy Cooperative in 2011. The plant includes a cool storage facility, a boiler house, a compression room and CIP (Cleaning In Place) stations. The plant manufactures liquid milk, cream, cheese, cottage cheese, cream cheese, butter and yoghurts. In 2011, the total electric energy consumption in the Cechanów Dairy Cooperative was 873114.0 kWh. The highest energy consumption (556430.0 kWh0 was recorded for the cooler (63.7% of total consumption) and the lowest for CIP stations (33084.0 kWh). The average electric energy consumption in the Cooperative plant was 72759.5 kWh, the highest (104800.6 kWh) in November and the lowest (40000.6 kWh) in March.
Dostawca treści:: Biblioteka Nauki

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