Wszystkie pola: Kuczynski, A. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Electromobility as one of the ways to a low emission transport system
Autorzy:: Kuczynski, W.
Denis, A.
Powiązania:: https://bibliotekanauki.pl/articles/95213.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: electric vehicles
fuels
emission of pollutants in exhaust gases
pojazdy elektryczne
paliwa
emisja związków szkodliwych w spalinach
Opis:: The transport sector in Poland heavily pollutes the environment, and together with individual heating systems, it contributes to bad air quality in Polish cities. One of solutions to this problem, among others, is electric transport. It should lead to reduced emissions, but 80% of electricity in Poland is generated from coal and lignite, the “dirty” fuels. This paper is meant to compare the emission of pollutants from power plants per kilometre covered by electric vehicles and by conventional cars. For this purpose, statistical data was used. Additional information concerning possible electromobility evolution, other low emission transport solutions, Polish energy mix evolution, external costs of electricity and differences between EURO limits and real driving emission are also included.
Źródło:: Journal of Mechanical and Energy Engineering; 2018, 2, 1; 51-58
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Modeling the instabilities of the condensation process of the R134a and 404A refrigerants in pipe minichannels in the conditions of periodic hydrodynamic disturbances
Autorzy:: Kuczyński, W.
Denis, A.
Powiązania:: https://bibliotekanauki.pl/articles/95362.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: condensation
minichannels
modeling of instabilities
kondensacja
minikanały
modelowanie niestabilności
Opis:: In the present paper, an attempt was made to model the periodic hydrodynamic instabilities of the condensation process of a refrigerant in pipe minichannels. For this purpose, a homogenous thermodynamic model with an equilibrium condition on both sides was used, which was based on the equations of the balance of the mass, momentum and energy. These equations were used for numerical modeling of flow disturbances with a phase change. This model takes into account the complexity of multiphase flows. The accuracy of the model calculations was verified by means of the experimental results obtained. A satisfactory compliance was found for this comparison, which confirms the usefulness of the computational model proposed for the determination of the influence of periodically generated hydrodynamic disturbances on the condensation process of R134a and R404A refrigerants in pipe minichannels.
Źródło:: Journal of Mechanical and Energy Engineering; 2017, 1, 2; 179-187
2544-0780
2544-1671
Pojawia się w:: Journal of Mechanical and Energy Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Analiza porównawcza zmian w rozbiorach wody z uwzględnieniem sposobu jej dostarczania do odbiorców
Comparative analysis of changes in water consumption including methods of its supplying to consumers
Autorzy:: Żuchowicki, A. W.
Kuczyński, W.
Powiązania:: https://bibliotekanauki.pl/articles/1819788.pdf
Data publikacji:: 2009
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: woda użytkowa
analiza porównawcza
water consumption
comparative analysis
Opis:: W związku z zaobserwowanym systematycznym zmniejszaniem się zużycia wody wodociągowej w Polsce, począwszy od roku 1990, rozpoczęto badania w tym zakresie dla różnych jednostek organizacyjnych, zużywających wodę wodociągową. Jednocześnie przepustowość komunalnych urządzeń w wielu przypadkach okazała się zbyt duża w stosunku do rzeczywistego zapotrzebowania na wodę, co powodowało wzrost kosztów eksploatacyjnych i niekorzystne zmiany w jakości dostarczanej wody [2, 3]. Wyżej wymieniona tendencja spadkowa zużycia wody utrudnia także właściwe programowanie przyszłych potrzeb w zakresie zaopatrzenia w wodę, jak też w odprowadzania i unieszkodliwiania ścieków.
The analysis of water consumption was based on the record of daily water records intake, carried out at urban aggreate No 1 of the Housing Estate KSM "Przylesie" in Koszalin with 118 inhabitants, during 3 years: 2006, 2007 and 2008. Basing on recorded water consumption and special conditions comparative analysis of individual. water consumption in dm3/inhabitantźday for each month and average unit water consumption for years 2006, 2007 and 2008 has been conducted. Due to increase of price of supplied water in 2007, year unit water consumption by inhabitats dropped to 112 dm3/inhabitantźday, but in last three months of 2007, due to change of metod of hot water supply (from local to central) value dropped dramatically to 100 dm3/inhabitantźday. This change was caused by increase of price of water supplied centrally and installation water meters in all flats. Comparing average year unit water consumption index in 2007 with index from 2006, its 3% decrease is noted. Through the whole year 2008 hot water was supplied centrally. Average year unit water consumption index decreased 15% in comparison to 2007. The results of the above research has confirmed early downward trend at present time in the water consumption, mainly due to: methods of hot water preparation, progressing increase of the water price, increase range of the individual water consumption measurement. Unit water consumption index is Lower than data from literature, which are assumed during designing [1]. The above results should be taken into consideration for the future programming of the water consumption rate for the small housing estates, particularly at present progressing financial and economic crisis. There is certain limit of minimum water consumption, which Carnot be crossed in order to maintain proper standard of living of modern human being. It is hard to determine that limit today. It will be possible to find it out continuing investigations during financial and economical crisis.
Źródło:: Rocznik Ochrona Środowiska; 2009, Tom 11; 781-786
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Kuczynski, A." wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język