Life Sciences and Agriculture

Teka Commission of Motorization and Power Industry in Agriculture


Teka Commission of Motorization and Power Industry in Agriculture | 2016 | vol. 16 | No 1 |


The paper presents a theoretical analysis of the effect of electric car performance characteristics on vehicle energy consumption and driving range. The test object was a Nissan Leaf electric vehicle. The characteristic curves of basic and additional resistance to motion (sum of rolling resistance and air resistance and inertia resistance or grade resistance, respectively) were applied to the model characteristic curve of electric motor torque of the tested vehicle. Based on that, the graphs describing the relationships between vehicle energy consumption and vehicle speed were made (for specific values of car acceleration / acclivity grade) as well as the relations between vehicle driving range and its traction properties. It was concluded that the use of performance characteristics significantly increased the vehicle’s energy consumption and decreased the available vehicle’s driving range.
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The paper presents the simulation analysis determining the effect of tyre energy efficiency class on fuel consumption of a passenger car. Calculations were made assuming the wheel movement on a dry and smooth asphalt road surface. The tests based on a simulation model were performed on 61 types of tyres, being characterised by different sizes and energy efficiency classes. Different values of rolling resistance coefficient were adopted (in accordance with energy efficiency classes), also, the values of basic and additional resistance to motion were determined. Based on them, engine speeds and load torque corresponding to respective specific fuel consumption were estimated. This parameter allowed the relationship between average mileage fuel consumption and tyre energy efficiency class to be determined on the basis of the NEDC test.
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The paper presents the problem of intelligent installations in buildings, their construction and integration with other systems present in the building. Attention has been focused on systems designed to ensure the safety of property and persons residing in different facilities. It also discusses ways to control the microclimate and other aspects of the building so as to obtain the maximum comfort of the people placed in them. Considering its high popularity, the smart installation based on the KNX/EIB standard is further discussed, examples of algorithms for dealing with security threats are given as well as the functions indicated which can improve the comfort of using a facility.
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The paper presents the results of laboratory tests concerning the cutting process of basket willow by means of disc cutting unit. A disc for cutting wood with diameter of 600mm was used in the tests. The influence of plant’s moisture and the rotary speed of the disc of cutting unit on the unitary energy were determined. The most favorable values of the operating parameters of the cutting unit were selected according to the minimum energy requirement in the cutting process of the tested plant.
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This paper presents the results of measurements of the operation of a photovoltaic system, connected to the power grid. The intensity of solar radiation and the ambient temperature in the location of the installation were simultaneously recorded in different weather conditions on selected days throughout the year. For the combined results the analysis of correlation in terms of efficiency of individual exemplary photovoltaic installation was conducted.
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The paper presents selected issues relating to the energy analysis of the air heat pump for hot water. Experimental studies on a test stand made it possible to verify the operational parameters of the heat pump under actual conditions of use. The study shows that heating the water in the storage tank with the capacity of 130 dm3 from 25°C to 40°C took approximately 60 minutes and the water heating for another 5°C took 30 minutes longer. The heat pump process in the field of higher water temperature in the tank is less effective, thus heating the water in the tank above 50°C is less favorable economically.
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The paper contains the technical analysis of the carried out modernisation of the facilities of a water-park consisting in fitting solar collectors for the heating of tap hot water and central heating system. The article includes information on the modernisation carried out with a particular emphasis on analysing the way in which the equipment has been selected and technical solutions employed.
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The paper contains the economic analysis of the carried out modernisation of the facilities of a water-park consisting in fitting solar collectors for heating of tap hot water and central heating system. The article presents the data showing investment outlays, operating costs and the calculations concerning the payback time.
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The article focuses on selected aspects of the technical and economic analysis of the 0.8 MW agricultural biogas plant. The electrical power, generated in a cogeneration system, fed power to the neighbouring overhead power grid, Węgrów – Sokołów Podlaski, while the heat energy recovered from combustion gases and liquids cooling the engine was used to heat digesters, a residential building, drying room and farm buildings. The planned annual production equals c.a. 6400 MWh per year given the 8000 h of engine operation. The substrates used as input for the digestive chambers were as follows: fermented maize, pig slurry and liquid digestate pulp.
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The article analyses selected aspects of the technology and logistics used to modernise a coal-fired heating plant to switch to woodchips, which is illustrated with a specific investment. The study presents characteristics of the investment’s heat economy before the modernisation, as well as the assumptions and program of the project. Finally, selected effects of the modernisation have been described
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This paper shall present and explain the key aspects related to the issue of combined heat and power generation (CHP – Combined Heat and Power or Cogeneration). The cooperation with the water treatment plant launched allowed a closer look at the described technology as well as allowed the analyses and survey. The survey on the efficacy of the selected components of the cogeneration system was based on two cogeneration units fuelled with biogas produced in the sewage fermentation.
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The article addresses the issues falling within the scope of the economic analysis of a detached building’s heating system with a direct evaporation ground source heat pump installation. The paper was elaborated based on the data made available by the investment’s contractor and the investor. The paper provides data on the investment expenditures and utility cost, calculations of the installation payback, internal return rate and the current net value.
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The article describes selected issues falling within the scope of the technical analysis of a detached building’s heating system with a direct evaporation ground source heat pump installation. This paper covers the characteristics of modernized facility as well as calculations to determine the heat demand. What is more, the article describes the manner in which heat pumps shall be selected, its installation components as well as the receiving installation.
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This work analyzes the process of construction and manufacturing of a blade used in a wind turbine. The calculation scheme is presented for forces generated on the blade of a wind turbine and parameters are determined of weather conditions in which the designed element would be working. Subsequently, for the chosen aerodynamic profile the characteristics are calculated of its aerodynamic coefficients, which enables the establishing of the angle of attack which impacts the yield of wind engines. The presented process is an introduction to 3D modelling of a wind turbine’s blade and simulation of its creation in a CAM environment.
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This work is an analysis of construction and creation of a 3D model of a wind turbine blade in a CAD environment, using SOLIDWORKS on the basis of forces influencing the blade, which were determined using WIATRAK 1.1 software. The presented process is related to the issues of 3D modelling of a wind turbine blade and simulation of fabrication process in the CAM environment.
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Editorial office

President of editorial and scientific committee
Redaktor naczelny:
prof. Eugeniusz Krasowski

Zbigniew Burski

Editorial committee  

Jan Glinski, Karol Cupial, Aleksandr Dashchenko, Sergiey Fedorkin,
Oleksandr Holubenko, Anatoliy Yakovenko, Janusz Laskowski,
Jerzy Merkisz, Ryszard Michalski, Aleksandr Morozow, Janusz Myslowski, Ilya Nikolenko,
Pawel Nosko, Stanislaw Niziiiski, Marek Opielak, Marek Rozmus, Wolodymyr Snitynskiy

Scientific committee

Andrzej Ambmzik, Kielce, Poland Volodymyr Bulgakow, Kiev, Ukraine Kazimierz Dreszer, Lublin, Poland Bohdan Hevko, Ternopil, Ukraine Marek Idzior, Poznan, Poland L.P.B.M. Jonssen, Groningen, Holland Elzbieta Kusinska, Lublin, Poland Jozef Kowalczuk, Lublin, Poland Stepan Kovalyshyn, Lwow, Ukraine Nikolaj Lubomirski, Simferopol, Ukraine Kazimierz Lejda, Rzeszow, Poland Leszek Moscicki, Lublin, Poland Ignace Niedziolka, Lublin, Poland Valery Diadychev, Lugansk, Ukraine     Juriy Osenin, Lugansk, Ukraine Janusz Nowak, Lublin, Poland Sergiey Pastushenko, Kherson, Ukraine Jozef Sawa, Lublin, Poland Ludvikas Spokas, Kaunas, Lithuania Povilas A. Sirvydas, Kaunas, Lithuania Stanisiaw Sosnowski, Rzeszow, Poland Aleksandr Sydorchuk, Lw6w, Ukraine Georgij Tayanowski, Minsk, Belarus Wojciech Tanas, Lublin, Poland Henryk Tylicki, Bydgoszcz, Poland Danis Viesturs, Ulbrok, Latvia Dmytro Voytiuk, Kiev, Ukraine Janusz Wojdalski, Warszawa, Poland Bogdan Zoltowski, Bydgoszcz, Poland


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Jan Kowalski, Katedra ....., Nazwa uczelni, adres, e-mail
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numer tomu, zeszytu oraz numery stron, np.
1. Chełkowski Z., 1966: Introdukcja troci do rzeki Gowienicy. Gospod. Ryb. 1(2), 18–19.
2. Greń J., Kowalski Z., 1972. Statystyka matematyczna. PWN Warszawa.
3. Horabik J., 1994: Load distribution in a model bin as influence d by mechanical properties
of wheat grain (in Polish). Acta Agrophysica, 1.5. Jury W.A., Roth K., 1990: Transfer Function
and Solute Movement through Soil. In: Theory and Applications. Birkhaser Verlag, Basel, Switzerland.
4. Turski W., 1972: Projektowanie oprogramowania systemów liczących. Mat. Konf.

Projektowanie maszyn i systemów cyfrowych. Warszawa 2-5 czerwca 1971. PWN Warszawa, 132-139.
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