Ograniczanie wyników
Czasopisma help
Lata help
Autorzy help
Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Znaleziono wyników: 34
first rewind previous Strona / 2 next fast forward last
Wyszukiwano:
w słowach kluczowych:  propulsion
help Sortuj według:

help Ogranicz wyniki do:
1
100%
Polish Maritime Research
EN In the paper a practical method of determination of propulsion characteristics of a ship with controllable pitch propeller is presented. The method is based solely on the results of the energy measurements performed onboard the ship. Therefore it is not necessary to make use of any results of ship h[...]
2
80%
Polish Maritime Research
2007 S 2 8--12
EN Paper presents the development of resistance, propulsion and steering quality model tests carried out on lake. Such pioneering investigations began in 1956 and were gradually improved and extended. Original equipment and measurement methods were developed. The paper presents those research methods a[...]
3
80%
Journal of KONES
EN The research object consists study of simplified turbojet engine known as a Schreckling design. Simplified layout is related to single centrifugal compressor and single axial turbine design (1R-1T). Presented design is favoured in model gasturbines that uses common compressor rotor from automotive t[...]
4
80%
Journal of KONES
2016 Vol. 23, No. 3 135--141
EN Efficiency is crucial for an airplane to reduce both costs of operations and emissions of pollutants. There are several airplane concepts that potentially allow for increasing the efficiency. A few of them were not investigated thoroughly enough yet. The inverted joined wing configuration, where the[...]
5
80%
Journal of KONES
EN Fuel supply systems used in microgasturbines are designed in experimental way. In literature they exist as geometrically prescribed that is proper in general. In commercial aeroengines injection system is the most vulnerable part which failure generates high thermal loads and causes overheating of w[...]
6
80%
Journal of KONES
EN During the development of the small gas turbine, the most important calculations comes from preliminary design process which gives a shape of airflow duct and limits available space for each component of the engine. Micro scale jet engines are not simply reduced-scale model of the full-size engines.[...]
7
70%
Problemy Eksploatacji
2008 nr 1 147-152
PL Artykuł oparty jest o dane zebrane w ramach wykonywania pracy badawczej "Program modernizacji jednostek rybackich w aspekcie zmniejszenia nakładów energetycznych i oddziaływania na środowisko" w ramach grantu UE. W artykule przedstawiono analizę awarii układów napędowych polskiej floty rybackiej, tj[...]
EN Part of the research work on "Fishing craft modernization program for the reduction of power consumption and minimization of environmental impact" funded by the EU is an analyses of fishing vessel power systems. Failures occurring in the propulsion systems of Polish fishing boats and cutters are ana[...]
8
70%
Journal of Polish CIMAC
EN A prediction model of the ship propulsion risk is presented, i.e. a risk of the consequences of loss of the ship propulsion capability. This is an expert model based on opinions elicited by the ship power plant operators. The risk level depends, among other things, on the reliability state of the sh[...]
9
70%
Journal of KONES
EN Gas turbines are used as marine prime movers but the market is dominated by the diesel engines (of course turbocharged but they are still diesels). The share of gas turbines is on a level of 4-5% in the worldwide shipping. It was presented the chosen parameters of Rolls-Royce gas turbine MT30 with n[...]
10
70%
Journal of KONES
EN Utilization of gas turbines on vessels is a reality. It was presented the examples of utilization on ships of United States Navy and the Rolls-Royce suggestion for sharing on merchant shipping. It was mentioned the advantages of gas turbine MT30 with nominal power 36 MW or 40 MW prepared for marine [...]
11
70%
Journal of KONES
EN The paper presents the main activities of the Institute of Aviation (IoA) in the field of chemical rocket propulsion. The relatively "fresh" research and development team performed many useful works within the last 5 years, starting from the strategy and ideas. Nowadays, the Space Technology Departm[...]
12
70%
Journal of KONES
EN Hydrogen is regarded as a potential future fuel for various kinds of vehicles: fuel cell cars, trucks, buses etc. Storing and transportation issues are the crucial safety problems concerned with utilization ofhydrogen. Because of its very łów density hydrogen needs to be stored under very high press[...]
13
61%
Bulletin of the Polish Academy of Sciences. Technical Sciences
EN The article concerns the optimization of manual wheelchairs with a lever propelling system. Lever-driven manual wheelchairs are a promising wheelchair group, however they still need to be improved in order to compete successfully with classic manual push rim-driven wheelchairs. Also, despite all man[...]
14
61%
Napędy i Sterowanie
PL W artykule zostały zaprezentowane niektóre z energooszczędnych napędowych wdrożeń firmy Control-Service z Krakowa. Firma jako Autoryzowany Dystrybutor i Partner Serwisowy współpracuje z Danfoss od ponad 10 lat. Control-Service na życzenie Klienta realizuje kompleksową obsługę: od projektu aż po real[...]
15
61%
Mechanik
2011 R. 84, nr 2 135-135
PL Przedstawiono konstrukcję wózka inwalidzkiego o alternatywnym sposobie napędzania. Innowacyjność konstrukcji polega na zastosowaniu dwóch dźwigni napędzających w taki sposób, aby osoba niepełnosprawna nie była zmuszona do bezpośredniego napędzania kół wózka.
EN The paper presents a design of a wheelchair with an alternative method of propulsion. The innovative method is based on adding two propelling levers that are arm driven. This solution eliminates the necessity of direct hand-push rim contact while propelling the wheelchair.
16
61%
Autobusy : technika, eksploatacja, systemy transportowe
2017 R. 18, nr 6 308--311, CD
PL W artykule omówiony został problem napędu głównego śródlądowych jednostek pływających w aspekcie bezpieczeństwa żeglugi i ekologii. Przedstawiono przykładowe rozwiązanie techniczne spełniające wymagania bezpieczeństwa żeglugi i przepisów ochrony środowiska.
EN Paper discussed the problem of main propulsion inland waterway vessels in terms of shipping safety and ecology. This is an example of a technical solution that meets shipping safety and environmental regulations.
17
61%
Autobusy : technika, eksploatacja, systemy transportowe
2017 R. 18, nr 6 969--974, CD
PL W artykule omówiono pneumatyczno-hydrauliczną jednostkę napędową oraz problemy związane ze sterowaniem tego typu jednostką. Opisano praktyczny sposób wykorzystania mikrokontrolera ARM w układach prototypowych systemu sterowania. Przeanalizowano dostępną dokumentację oraz literaturę pod względem zaga[...]
EN This article discusses the pneumatic-hydraulic propulsion drive and problems with control of this type of drive. Described practical way of using the ARM microcontroller in the prototype systems of the control system pneumatic-hydraulic drive. Analyzed available documentation and literature in terms[...]
18
61%
Central European Journal of Energetic Materials
2016 Vol. 13, no. 3 778--790
EN This paper presents the authors’ experience in the field of the safe preparation and utilisation of HTP (98%+), a storable propellant that is finding use in various engineering applications. Brief characterisations of the material as well as examples of its potential use within relevant industries a[...]
19
61%
Prace Naukowe Politechniki Warszawskiej. Transport
2018 z. 121 223--232
PL W pracy zaproponowano kryteria oceny cech jednostek napędowych, które mogą mieć zastosowanie na śródlądowych jednostkach pływających. Przedstawiono schematy zależności doboru jednostki napędowej od stosowanego paliwa jak i od akwenu. Schematy te, mogą służyć jako algorytmy działań ułatwiających racj[...]
EN The paper proposes criteria for the evaluation of characteristics of propulsion units can be used on inland waterway vessels. Diagrams of dependence of the selection of the drive unit on the fuel used and on the body of water are presented. These diagrams may serve as algorithms of actions facilitat[...]
20
61%
Journal of KONES
EN Numerical model for selected turboshaft engine is highly required by helicopter and aircraft designers. Presented paper includes key features for turboshaft numeric model builders. The study of the real performance and estimated results showed that presented method is exact for higher throttle level[...]
first rewind previous Strona / 2 next fast forward last