Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Krause, P" wg kryterium: Autor

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-9 z 9
    Tytuł:
    The effect of selected methods of waste heat utilization on waste heat boiler steam production
    Wpływ wybranych sposobów wykorzystania ciepła odpadowego na ilość pary wytwarzanej w kotle utylizacyjnym
    Autorzy:
    Behrendt, C.
    Krause, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/360159.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    siłownie okrętowe
    utylizacja ciepła odpadowego
    kotły utylizacyjne
    marine power plants
    waste heat utilization
    waste heat boilers
    Opis:
    Growing costs of ship operation and actions taken to reduce the emission of harmful components in exhaust gases make designers seek more effective methods of utilizing substantial amounts of waste energy in marine power plants. One such method leads to the steam turbogenerator. This machine to run, however, requires substantially greater amount of steam generated in the waste heat boiler (compared to steam demand for heating purposes). It is possible to supply a sufficient amount of steam if the waste heat contained in exhausts and charge air of the main engine is fully utilized. This article analyzes the influence of some methods of using waste heat from exhaust gases and charge air on the amount of steam produced in the waste heat boiler. The analysis takes account of boundary conditions, such as steam pressure in the boiler and the minimum value of outlet gas after the boiler. The analysis is illustrated with examples of basic calculations for the waste heat boiler co-operating with a specific slow speed engine. Two variants of waste heat recovery installation solutions are considered.
    Rosnące koszty eksploatacji statków oraz działania związane z ograniczeniem emisji szkodliwych składników spalin skłaniają konstruktorów do wnikliwych analiz możliwości skuteczniejszego wykorzystania zasobów energii odpadowej w siłowniach okrętowych. Jedną z nich jest zastosowanie turboprądnicy parowej. W tym celu należy znacząco (w porównaniu z zapotrzebowaniem pary na cele grzewcze) zwiększyć ilość pary wytworzonej w kotle utylizacyjnym. Jest to możliwe przy pełnym wykorzystaniu ciepła odpadowego zawartego w spalinach i w powietrzu doładowania silnika napędu głównego. W artykule przedstawiono analizę wpływu wybranych sposobów wykorzystania ciepła spalin i powietrza doładowania na ilość pary wytworzonej w kotle utylizacyjnym z uwzględnieniem warunków brzegowych, takich jak ciśnienie pary w kotle oraz minimalna wartość temperatury spalin za kotłem. Analizę zobrazowano przykładami podstawowych obliczeń dla kotła utylizacyjnego współpracującego z wybranym typem silnika wolnoobrotowego w dwóch wariantach rozwiązań instalacji utylizacji ciepła odpadowego.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 29 (101); 10-14
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Operating characteristics of the cargo turbopump
    Charakterystyki eksploatacyjne turbopompy ładunkowej
    Autorzy:
    Krause, P.
    Behrendt, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/258340.pdf
    Data publikacji:
    2007
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Technologii Eksploatacji - Państwowy Instytut Badawczy
    Tematy:
    eksploatacja
    turbina parowa
    turbopompa
    operation
    steam turbine
    turbopump
    Opis:
    The article presents the characteristic values of a turbopump set, for example, efficiency, and specific and hourly steam consumption for various loads of the set. Characteristic values were designated by means of the operational measurement results of a turbopump installed on a vessel carrying oil-related products.
    W artykule przedstawiono wielkości charakterystyczne zespołu turbopompy, takie jak sprawność, jednostkowe i godzinowe zużycie pary dla różnych obciążeń zespołu. Wielkości charakterystyczne wyznaczono wykorzystując wyniki pomiarów eksploatacyjnych turbopompy zainstalowanej na statku do przewozu produktów ropopochodnych.
    Źródło:
    Problemy Eksploatacji; 2007, 3; 121-128
    1232-9312
    Pojawia się w:
    Problemy Eksploatacji
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of liquid viscosity on atomized fuel mean droplet size determined by the laser diffraction method
    Autorzy:
    Krause, P.
    Labuda, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/27315941.pdf
    Data publikacji:
    2018
    Wydawca:
    STE GROUP
    Tematy:
    morski silnik Diesla
    lepkość paliwa
    rozpylanie paliwa
    marine diesel engine
    fuel viscosity
    fuel atomization
    Opis:
    The article presents the impact of viscosity of fuel on its atomization, which constitutes an important element of controlling the quality of the fuel-air mixture in compression ignition and direct injection engines. An experiment has been made using a three-hole atomizer of an engine with nominal power of 110 kW and revolutions n = 2800 min-1. Fuel was delivered by a PRW-2M injection pump intended for testing injectors. Fuel was sprayed in the atmospheric air. Three petroleum product liquids used for the experiment had a viscosity of, respectively, 3.93, 16.73 and 36.41 mm2/s. The fuel droplet size in a spray was determined by the laser diffraction method by means of a Spraytec STP 5929 analyzer. The quantity adopted for comparative purposes was the Sauter Mean Diameter D32. The results confirmed that a change of fuel viscosity within the range recommended by ship engine manufacturers has a strong impact on the size of sprayed fuel droplets. Shipowners have a limited choice of low sulphur fuel grade (up to 0.1% S), which forces the engine room personnel to use currently available fuels. Depending on the supplier, marine fuels may vary in viscosity and, according to the recommendations of engine manufacturers, they do not require heating. The increase in the size of the droplets injected into the fuel combustion chamber may affect the quality of the fuel-air mixture, increase of fuel consumption and a greater content of harmful exhaust constituents.
    Źródło:
    New Trends in Production Engineering; 2018, 1, 1; 435-441
    2545-2843
    Pojawia się w:
    New Trends in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Requirements for personnel qualifications and training for handling the marine part of LNG transport chain
    Autorzy:
    Rajewski, P.
    Krause, P.
    Matyszczak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/359097.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    transport of liquefied gas
    liquefied gas tankers
    training
    Opis:
    The article describes basic problems concerning qualifications required from personnel handling LNG terminal facilities and equipment in view of the new terminal in Świnoujście. Statistical data, separately reported for LNG tankers, indicate a drop of the number of accidents and machinery failures on ships. The legal basis for the organization of common seafarer training and additional training for LNG vessel crews is outlined. Finally, the authors point out the areas of training for shore-based personnel handling LNG vessels, types of equipment of training centers for specialized LNG courses and estimated costs of such training.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2012, 32 (104) z. 1; 67-74
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The quality of marine fuels and the safety of navigation: case studies
    Autorzy:
    Kamiński, W.
    Krause, P.
    Gumiński, D.
    Rajewski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/135064.pdf
    Data publikacji:
    2016
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    safety of navigation
    fuel samples
    quality of marine fuels
    procedures of fuel handling on board
    requirements
    failures
    Opis:
    The quality of marine fuels is standardised by the international standard ISO 8217. As practice shows, even fuels that meet all standard requirements do not completely guarantee avoiding disruptions in smooth and safe operation of the ship. The future is likely to bring more cases of improper operation of vessels, sometimes leading to main propulsion failures. One cause behind main engine breakdowns is the introduction of new products on the fuel market that are intended to meet the ever-increasing requirements of environmental protection (e.g. low sulphur content). As a result, some fuels are chemically different from the previously used residual fuels. Using them in the engine room requires special care on the part of the ship owner and the ship’s crew. The article analyses two cases in which the use of conventional residual fuels resulted in main engine stoppage. The authors, bearing in mind the causes of those failures, focus on technical consequences of using marine fuels produced by currently employed technologies.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2016, 48 (120); 15-21
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new apheliscine 'condylarth' mammal from the Late Paleocene of Montana and Alberta and the phylogeny of 'hyopsodontids'
    Autorzy:
    Zack, S P
    Penkrot, T.A.
    Krause, D.W.
    Maas, M.C.
    Powiązania:
    https://bibliotekanauki.pl/articles/20291.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Fieldwork in the early Late Jurassic (Oxfordian) Qigu Formation of the Junggar Basin in Northwest China (Xinjiang Autonomous Region) produced teeth and mandibular fragments of a new docodont. The new taxon has a large “pseudotalonid” on the lower molars, and by retention of crest b−g exhibits closer affinities to Simpsonodon and Krusatodon from the Middle Jurassic of Europe than to the other known Asian docodonts Tashkumyrodon, Tegotherium, and Sibirotherium. It differs from the Haldanodon–Docodon−lineage by the “pseudotalonid” and large cusps b and g. A PAUP analysis based on lower molar characters produced a single most parsimonious tree with two main clades. One clade comprises Docodon, Haldanodon, and Borealestes, and the other Dsungarodon, Simpsonodon, and Krusatodon plus the Asian tegotheriids. Analysis of the molar occlusal relationships using epoxy casts mounted on a micromanipulator revealed a four−phase chewing cycle with transverse component. The molars of the new docodont exhibit a well developed grinding function besides cutting and shearing, probably indicating an omnivorous or even herbivorous diet. A grinding and crushing function is also present in the molars of Simpsonodon, Krusatodon, and the Asian tegotheriids, whereas Borealestes, Haldanodon, and Docodon retain the plesiomorphic molar pattern with mainly piercing and cutting function.
    Źródło:
    Acta Palaeontologica Polonica; 2005, 50, 4; 809-830
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Cretaceous mammal from Tanzania
    Autorzy:
    Krause, D W
    Gottfried, M.D.
    O'Connor, P.M.
    Roberts, E.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/23042.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    mammal
    Gondwana
    Cretaceous
    Mammalia
    Africa
    Tanzania
    Gondwanatheria
    paleontology
    Opis:
    We report here the discovery of a Cretaceous mammal from the “Red Sandstone Group” of southwestern Tanzania. This specimen is one of only a very few Cretaceous mammals known from Gondwana in general and Africa in particular. The specimen consists of a short, deep left dentary that bore a large, procumbent central incisor, and five single−rooted, hypsodont cheek−teeth. The specimen is very tentatively identified as a sudamericid, and thus may represent the first African record of an enigmatic clade of mammals, the Gondwanatheria, which is otherwise known from the Late Cretaceous and Paleogene of several other Gondwanan landmasses. Unfortunately, the precise age of the specimen could not be determined. If it is pre−Campanian and if its identity as a sudamercid is corroborated through subsequent discoveries, it represents the earliest known gondwanatherian. If the specimen is from the Campanian or Maastrichtian, and again assuming its identification is correct, it has the potential to refute a recently formulated biogeographic hypothesis predicting the absence of certain terrestrial and freshwater vertebrate taxa, including gondwanatherians, in Africa (i.e., those that evolved elsewhere on Gondwana after Africa became an isolated landmass).
    Źródło:
    Acta Palaeontologica Polonica; 2003, 48, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Deposition Parameters and Thermal Annealing on the Structure and Properties of Nitride Coatings (TiHfZrVNb)N
    Autorzy:
    Pogrebnjak, A.
    Abadias, G.
    Chartier, P.
    Bondar, O.
    Yakuschenko, I.
    Takeda, Y.
    Krause-Rehberg, R.
    Kolesnikov, D.
    Beresnev, V.
    Partyka, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1365973.pdf
    Data publikacji:
    2014-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.46.-w
    62.20.Qp
    62.25.-g
    Opis:
    Results of structure, phase composition, physical and mechanical properties and tribological properties investigations of nitride high-entropy coatings (TiZrHfVNb)N are presented in the paper. Proton microbeam (μ-PIXE), X-ray diffraction method, including method of X-ray strains measurements, energy dispersive X-ray spectroscopy and scanning electron microscopy analysis, microhardness testing and nanoindentation were used. Thermal annealing (t=600°C) influence on defect profiles, structure and element distribution in the coatings was investigated. It was found that thermal treatment of coatings leads to changing of defect profiles and to element redistribution. Also we can say that it influences less on grain size changing. Investigated (TiZrHfVNb)N coatings demonstrate high values of hardness and excellent wear resistance.
    Źródło:
    Acta Physica Polonica A; 2014, 125, 6; 1296-1298
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new mammal from the Turonian–Campanian (Upper Cretaceous) Galula Formation, southwestern Tanzania
    Autorzy:
    O’Connor, P.M.
    Krause, D.W.
    Stevens, N.J.
    Groenke, J.R.
    MacPhee, R.D.E.
    Kalthoff, D.C.
    Roberts, E.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/20223.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    We here establish a new mammaliaform genus and species, Galulatherium jenkinsi (Mammalia), from the Upper Cretaceous Galula Formation in the Rukwa Rift Basin of southwestern Tanzania. This represents the first named taxon of a mammaliaform from the entire Late Cretaceous of continental Afro-Arabia, an interval of 34 million years. Preliminary study of the holotypic and only known specimen (a partial dentary) resulted in tentative assignation to the Gondwanatheria, a poorly known, enigmatic clade of Late Cretaceous–Paleogene Gondwanan mammals (Krause et al. 2003). The application of advanced imaging (μCT) and visualization techniques permits a more detailed understanding of key anatomical features of the new taxon. It reveals that the lower dentition consisted of a large, procumbent lower incisor and four cheek teeth, all of which were evergrowing (hypselodont). Importantly, all of the teeth appear devoid of enamel. Comparisons conducted with a range of Mesozoic and selected Cenozoic mammaliaform groups document a number of features (e.g., columnar, enamel-less and evergrowing teeth, with relatively simple occlusal morphology) expressed in Galulatherium that are reminiscent of several distantly related groups, making taxonomic assignment difficult at this time. Herein we retain the provisional referral of Galulatherium (RRBP 02067) to Gondwanatheria; it is most similar to sudamericids such as Lavanify and Bharratherium from the Late Cretaceous of Madagascar and India, respectively, in exhibiting relatively simple, high-crowned, columnar cheek teeth. Other features (e.g., enamel-less dentition) are shared with disparate forms such as the Late Jurassic Fruitafossor and toothed xenarthrans (e.g., sloths), here attributed to convergence. Revised analyses of the depositional context for the holotype place it as having lived sometime between the late Turonian and latest Campanian (roughly 91–72 million years ago). This enhanced geochronological context helps to refine the palaeobiogeographical significance of Galulatherium among Cretaceous mammals in general and those from Gondwanan landmasses specifically.
    Źródło:
    Acta Palaeontologica Polonica; 2019, 64, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-9 z 9

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies