Zobrazeno 1 - 10
of 71
pro vyhledávání: '"I. Vitázek"'
Autor:
P. Trávníček, I. Vitázek
Publikováno v:
Research in Agricultural Engineering, Vol 66, Iss 2, Pp 52-59 (2020)
The paper is focused on the uncertainty estimation of the mean isobaric and isochoric specific heat capacity calculation. The differences in the data among the individual sources for the technical calculation are presented in the first part of the pa
Externí odkaz:
https://doaj.org/article/8747fbd9e5314fcc9eb03f726b880b0e
Publikováno v:
Tribology in Industry, Vol 39, Iss 4, Pp 547-558 (2017)
Three filtration systems using the tractor hydraulic circuit were proposed and verified during the tractors operation. Using the tractor-implement hydraulic system and filter body with accessories the universally useful filtration systems were design
Externí odkaz:
https://doaj.org/article/08e804f481e54c9f9795dcd6cc781d6a
Publikováno v:
Research in Agricultural Engineering, Vol 62, Iss 3, Pp 122-128 (2016)
Car service centres are specific in terms of production of pollutants. The aim of the paper is to assess the quality of indoor environment of car service interiors with respect to the safe range of oxocarbon emission limits, concentration of gaseous
Externí odkaz:
https://doaj.org/article/7b40639b11564009bf3aa761e101339d
Publikováno v:
Research in Agricultural Engineering, Vol 62, Iss Special Issue, Pp S14-S20 (2016)
The aim of the paper is to present a detailed methodology of calculations of parameters of an ideal working cycle of spark-ignition combustion engine. Natural gas in the form of compressed natural gas (CNG) was used as a fuel. A theoretical ideal cyc
Externí odkaz:
https://doaj.org/article/7b152862d8374069885e4ca18a8bf1c3
Publikováno v:
Research in Agricultural Engineering, Vol 62, Iss Special Issue, Pp S8-S13 (2016)
Biogas as a respected source of renewable energy is used in various areas for heating or in power cogeneration units. It is produced by anaerobic fermentation of biodegradable materials. The utilization of biogas is wide - from process of combustion
Externí odkaz:
https://doaj.org/article/bdf592c637fd4d088f35766b520b44c8
Publikováno v:
Research in Agricultural Engineering, Vol 61, Iss Special Issue, Pp S21-S25 (2015)
The using possibilities of secondary raw materials produced during the liquid biofuels production such as bioethanol and biodiesel, and also those produced during solid fuel production was determined. The study presents combustion of distiller's drie
Externí odkaz:
https://doaj.org/article/489697aa3866459ba7f34386e5a5fab0
Publikováno v:
Research in Agricultural Engineering, Vol 61, Iss Special Issue, Pp S9-S12 (2015)
Thermal weed control performed by weeders working on physical principles is already commonly used on farms dealing with bioproducts. It helps to reduce strenuous human labour and to effectively control weeds and, to some extent, pests and diseases th
Externí odkaz:
https://doaj.org/article/6a57c5fe461f4362949f48beedc89434
Autor:
I. Vitázek, J. Tirol
Publikováno v:
Research in Agricultural Engineering, Vol 54, Iss 4, Pp 176-182 (2008)
The most significant way of grains conservation is heat drying. This technological process is regarded as a part of the production process with such commodities as grain maize, grain sunflower, rape, and other oil plants. The paper presents partial r
Externí odkaz:
https://doaj.org/article/84c7209b735145ebb7b0ff1020b754b2
Autor:
I. Vitázek, J. Havelka
Publikováno v:
Research in Agricultural Engineering, Vol 60, Iss Special Issue, Pp S52-S56 (2014)
The aim of the paper is to expand the theory of sorption and equilibrium moisture contents as well as to present the methodology of developing two types of sorption isotherms - I and II. The attention is also paid to the importance of the isotherms i
Externí odkaz:
https://doaj.org/article/9b5fedfa5358402d850f3e6b81efcdf7
Autor:
I. Vitázek, J. Havelka
Publikováno v:
Research in Agricultural Engineering, Vol 59, Iss Special Issue, Pp S49-S53 (2013)
The authors have been working for 50 years in the research and development of drying in agriculture. In the way of drying applied, warmed air is used as the drying medium. The thermodynamics of wet air is used for the analysis of these processes of d
Externí odkaz:
https://doaj.org/article/e8ff8ed6a3c04f49b748cd6a95293f9c