Wyniki wyszukiwania - BazTech

1

Koncepcja autonomicznej sieci transportu indywidualnego na terenie miasteczka akademickiego w Kortowie

Piętak A., Drogosz P., Miernik M.

Logistyka

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2015

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nr 4

5307--5314, CD 2

PL

W artykule opisano koncepcję nowej inwestycji związanej z dążeniem do rozwiązania lokalnych problemów komunikacyjnych na wydzielonym obszarze, w którym okresowo przemieszcza się kilkanaście tysięcy osób. Wyodrębnionym obszarem jest miasteczko akademickie należące do Uniwersytetu Warmińsko-Mazurskiego w Olsztynie (dalej stosuje się skrót UWM). Na tym obszarze rozmieszczone są publicznie dostępne budynki użytkowe oraz budynki mieszkalne zasiedlone przez studentów i pracowników UWM. Ze względu na specyfikę działalności UWM wielokrotnie w ciągu dnia występuje wzrost lokalnego ruchu komunikacyjnego związanego z przemieszczaniem się dużej liczby osób pomiędzy różnymi budynkami i dzielnicami miasta Olsztyn. Wzrost efektywności wykorzystania przestrzeni oraz budynków Kortowa powoduje przeciążenie infrastruktury komunikacyjnej, którą trudno zmienić. Z tych powodów pojawiła się potrzeba poszukiwania możliwości rozwiązania bądź tylko złagodzenia narastających trudności. W tym artykule przedstawiono koncepcję budowy autonomicznej sieci transportu indywidualnego, która w nowatorski sposób może rozwiązać lokalne problemy transportowe. Opisane studium zostało opracowane w perspektywie realizacji długofalowego dążenia do realizacji rozwiązania optymalnego. Z tego powodu nie traktowano wstępnych ograniczeń finansowych jako istotnych.

EN

This paper describes the conception of a new investments associated with solving local communication problems in a relatively small separated area of the campus of the University of Warmia and Mazury in Olsztyn (UWM) with several thousand people (mainly students) moving around. The campus constitutes a district of Olsztyn called Kortowo. Olsztyn is the main city of Warmia-Masuria Province of Poland in Europe. In the area of the campus in Kortowo there are many publicly available buildings and residential houses inhabited by students and staff of UWM. Due to the nature of the university, there are local increases of traffic problems several times a day associated with the movement of large numbers of people between different buildings and districts of the city of Olsztyn. An increase in space and buildings efficiency in Kortowo generates overload communication infrastructure, which is difficult to change. For these reasons, it was necessary to seek possibilities to alleviate or at least reduce the increasing difficulties. This paper presents a conception of a public transport network of autonomous small vehicles, which can solve local traffic problems. The presented study was developed and described with a long-term view to implement the optimal solution. For this reason financial constraints are not treated as relevant.

2

Conception of vehicle of individual personal transport with hybrid pneumatic propulsion

Drogosz P., Paszkowski R.

Journal of KONES

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2013

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Vol. 20, No. 1

63--70

EN

This paper describes the conception of an individual personal transport vehicle. The conception of the vehicle is based on a mechanical structure of a bike and on a pneumatic engine as equipment of power support. The research was done as an analysis of existing vehicles with main or supporting gas power systems. In the research the expectations of users, technical resources as well as known constructions were taken into account. At the beginning, the technical properties of known methods and modern vehicles available for individual personal transport of people were reviewed. Next, some vehicles which can meet economic, ecologic and environmental criteria were identified. Finally, the authors proposed usage of extremely small and light-weight vehicles. It appears that the smallest, lightest and most economic construction of vehicles should be modeled on the bike. For power convenience on uphill roads compressed air as a supporting power factor was proposed. It also implied the possibility to use supporting power system as main power engine. However, the economic storage and management of compressed gas required optimization system of gas usage. This optimization depends on pulse wide modulation of air valve flow and possibility of air compression. Air compression is possible by driving downhill or on fixed vehicle by human muscle power. Those circumstances warrant to name such power system a hybrid pneumatic propulsion.

3

Possibilities of applications of stirling engine in cogeneration systems

Boruta G., Drogosz P., Nitkiewicz S., Piętak A.

Journal of KONES

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2012

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Vol. 19, No. 2

67-75

EN

This study takes into account engines working in Stirling cycles in cogeneration systems. Stirling engines have been selected because of their characteristics of exploitation. The possibility of their use in cogeneration systems is more favourable in comparison with other combustion engines because they can avoid usage of industrial and transport fuels. The Stirling engines enable the use of biomass, agricultural and other waste energy sources in micro tri- and cogeneration plants dedicated for the use in agriculture and forestry. Considering such applications, three types of usage structures of Stirling engines are proposed. All three structures are dedicated to install in small residential or farm buildings. These three types of structure are named: “type master”, “type slave” and “type customer”. In accordance with the proposed structures, different types of engine constructions are discussed, too. At the same time, the authors described the dependences between Stirling engines and electric power energy systems. The arguments of grid power systems and dispersed energy resource in text were reviewed. After that overview, some legal problems are discussed. Finally, the conception of independent dispersed micro agropower system and some technical equipment were described. Technical realization of the proposed conception requires: proper type, installation and usage of Stirling engines and proper expectations of achieved results.

4

Different types of power transforming machines with rotating pistons

Drogosz P.

Journal of KONES

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2012

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Vol. 19, No. 1

79-82

EN

This article describes the basic principles for determining the geometry of different types of power transforming machines with rotating pistons. Those machines can be used as internal combustion engines, pumps, hydraulic engines, compressors, flowmeters, feeders etc. An attempt is made to clarify whether it is possible to construct machines with rotating pistons for more general use. Differences in description in many sources lead to problems when it comes to comparison of information coming from these sources. An analysis of the data indicates that reorganizing the basic mathematical issues would be useful. In this article we choose and describe one most convenient name and form of mathematical equation. Many other applications of the chosen form of mathematical equation ascertain proper and convenient use. This is the first time that the chosen form of mathematical equation is proposed to be used to find constructions of different types of power transforming machines with rotating pistons. The main advantage of this form of mathematical equation is the application of two main parameters: curve size parameter and dimensionless curve parameter. These two parameters decided about the convenience in changing volume of internal combustion engines and comparisons of performance characteristic of different types of power transforming machines with rotating pistons. In this paper some convenient values of parameters dimensionless curve parameter are put and discussed.

5

Możliwości zastosowania silników o obiegu Stirlinga w agroenergetyce

Drogosz P., Piętak A.

Silniki Spalinowe

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2011

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R. 50, nr 3

PL

W artykule opisano możliwości zastosowań silników o obiegu Stirlinga w instalacjach energetycznych i w transporcie. Rozważania ukierunkowano na małe instalacje energetyczne wykorzystujące odnawialne źródła energii. W zakresie opracowania wskazano celowość podziału zastosowań na dwa zakresy temperaturowe zewnętrznego źródła ciepła doprowadzanego do nagrzewnia silników realizujących termodynamiczne obiegi zbliżone do obiegu Stirlinga. Zwrócono również uwagę na możliwość wykorzystania generatorów elektrycznych napędzanych przez silniki Stirlinga do produkcji wodoru technicznego oraz wodoru energetycznego. Wyjaśniono przy tym, dlaczego ta propozycja może być istotna dla szerszego wykorzystania wodoru jako paliwa energetycznego z uwzględnieniem zastosowań transportowych.

EN

This paper describes same technical possibility of Stirling engine appalling in cogeneration plants. After all it seems that small ecologic agropowerstations are the better places to applied different kinds of Stirling engines. Stirling engine usage gives possibility to increase energetic efficiency of local spread renewable energy sources. The usage of Stirling engine in cogeneration systems are more interesting compared with other combustion engines. This kind of engines does not have to use more and more expensive fuels and can use waste heat. The Stirling engine can be used in two ways: as high or low temperature systems. However Stirling engines are very quietly and give same opportunity to products hydrogen with technical or energetically quality. Possibility of wide spared, ecologic and relatively chip production of hydrogen is very interesting for renewable energy sources and ecologic fuels for transport vehicles.

6

Trajectory of the apex seals of the wankel rotary engine

Drogosz P.

Journal of KONES

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2011

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Vol. 18, No. 2

117-122

EN

This article describes the basic principles for determining the trajectory of the apex seals of Wankel rotary engines. An attempt is made as the Wankel engine seems to be the convenient as the burning hydrogen fuel engine. The main advantage is particularly intensive cooling. The main disadvantage is high pollution of combustion gases. Analyzing the working constructions it is possible to find the main sources of pollution. After all it seems that specific work of rotating piston seals are the main reason of usage big volume of lubrication oil. But part of lubrication oil is burnt together with the fuel increasing the pollution. Even using hydrogen as fuel it remains difficult to meet EURO V regulations of combustion gases pollution made by transport vehicles. Every possibility of volume reduction of lubrication oil is important. In the article the trajectories of apex seals are discussed. As the mathematical model of trajectory a special formula of trochoid was chosen. The main advantages of the chosen form of mathematical equation are applications of two main parameters: curve size parameter and dimensionless curve parameter. These two parameters decided about convenience in changing volume of internal combustion engines and comparisons of performance characteristic of different Wankel engines. In other publications connected with Wankel motors more complicated mathematic formulas are still used.

7

The selection of stirling engines applied to cogeneration systems

Drogosz P., Nitkiewicz S., Piętak A.

Journal of KONES

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2011

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Vol. 18, No. 4

85-90

EN

The cogeneration systems of energy production are built and developed to achieve the highest economic and ecologic efficiency. These two aims can be realized by increasing energetic efficiency of transforming different sources of energy into technical systems and optimizing usage of own energy. These can be achieved by the usage of different equipment. The search for new constructions, structure and systems is still developing. This article describes the basic principles for use of Stirling engines in micro immobility cogeneration systems. This attempt is made because the Stirling engines seem to be a convenient equipment of optimizing usage of own energy in micro agropower plants. Especially we try to determine which type of the Stirling engine seems to be the best to fulfil the demands in practice. For this purpose a procedure of selection and adjustment of Stirling engines was formulated. In the described procedure many steps ought to be taken for correct choice of all technical arrangements. In this paper the following topics were considered: energetic demands of small houses, maximum instantaneous electric power, consumption of electric energy throughout a year, maximum instantaneous heating power, consumption of heat energy of the year, selection and choice of construction of Stirling engines, selection and choice of pressure of working gas.

8

Zasady stosowania norm dotyczących układów ciśnieniowych

Drogosz P.

Hydraulika i Pneumatyka

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2011

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nr 6

26-28

9

Dlaczego teoria nie zawsze zgadza się z praktyką ?

Drogosz P.

Hydraulika i Pneumatyka

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2011

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nr 5

27-29

10

Geometry of the Wankel rotary engine

Drogosz P.

Journal of KONES

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2010

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Vol. 17, No. 3

69-74

EN

This article describes the basic principles for determining the geometry of Wankel rotary engines. An attempt is made to clarify if the characteristics of the rotary engine are such that the engine may be brought into more general use as an internal combustion hydrogen engine. An analysis of the data indicates that reorganizing the basic mathematical issues would be useful. Also the clarification of the names used to describe the basic curve characterizing the Wankel engine may be useful too. Now in such names and basic mathematical issues there are many differences generating many difficulties in comparison information comingfrom different sources. In this article one most convenient name and form of mathematical equation were chosen and described. The chosen name is the best for communication in the English language, but the other described names can be useful when comparing information from other European languages. This is the first time that the chosen form of mathematical equation is proposed to be used in accordance to construction of Wankel engines. Many other applications of the chosen form of mathematical equation ascertain proper and convenient use. The main advantages of this form of mathematical equation are applications of two main parameters: curve size parameter and dimensionless curve parameter. These two parameters decided about convenience in changing volume of internal combustion engines and comparisons of performance characteristic of different Wankel engines.

11

Zasady opracowania instrukcji użytkowania maszyn

Drogosz P.

Hydraulika i Pneumatyka

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2009

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nr 4

29-31

12

Ocena zużycia oleju hydraulicznego w urządzeniach pracujących w małym przedsiębiorstwie

Drogosz P.

Hydraulika i Pneumatyka

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2009

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nr 3

10-14

PL

Wskazano na możliwości obniżenia kosztów eksploatacji urządzeń z układami hydraulicznymi. Omówiono zakres wymagań dotyczący pielęgnacji cieczy hydraulicznej, określony w normach technicznych. Podano wzorzec obliczeniowy, ułatwiający ocenę stopnia zużycia oleju hydraulicznego.

EN

The authors presented the possibility of lowering the operating costs of equipment with hydraulic systems. The requirements for maintenance of hydraulic fluid, as specified in technical standards, has been discussed. An accounting model facilitates an assessment of the consumption of hydraulic oil.

13

Koncepcje wiertarki do otworów kwadratowych

Przemielewski E., Domański J., Drogosz P.

Mechanik

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2005

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R. 78, nr 7

630-633

PL

Przedstawiono zasadę pracy wrzeciona do wiercenia otworów kwadratowych: opis teoretyczny, analizę wymiarową, sposób modelowania i wyniki komputerowej symulacji pracy tego wrzeciona w aplikacjach SolidWorks 2004 i CosmosMotion 2004.

EN

Square hole drilling spindle design principle: theory, dimensional aspects, modelling method, simulation of the spindle performance in computer applications SolidWorks 2004 and CosmosMotion 2004.

14

Trochoid application to seed solid section mapping

Drogosz P., Mańkowski S.

Technical Sciences / University of Warmia and Mazury in Olsztyn

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2003

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nr 6

57-64

EN

The paper presents different forms of trochoid equations which may be used for describing the geometry of solid sections formed by seed outer surfaces. Special attention was paid to the possibility of choosing a given type of a trochoid equation with its modifications, as well as to the possibility of selecting parameters and coefficients characteristic of a given equation form.

PL

W pracy przedstawiono różne postacie równań trochoid, które mogą posłużyć do opisu geometrii przekrojów brył, jakie tworzą powierzchnie zewnętrzne nasion. Wskazano przy tym na możliwość wyboru rodzaju równania trochoidy wraz z jego modyfikacjami, jak również na możliwość doboru wartości parametrów i współczynników występujących w wybranej postaci równania.

15

Chłonność właściwa różnych odmian obiegowych silników hydraulicznych

Drogosz P., Kujawski M.

Maszyny Górnicze

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1998

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R. 16, nr 4 wyd. spec.

25--33

PL

Przedstawiono sposób i możliwości zastosowania oprogramowania komputerów klasy PC do wyznaczania chłonności właściwej różnych odmian obiegowych silników hydraulicznych w celu znalezienia rozwiązania optymalnego.

EN

A method and possibilities of the application of software of the PC computers for determining the specific absorbing capacity of different types of a circulating hydraulic motor with the object of finding an optimum solution have been presented in the paper.