Tag Archives: pressing

155–161 T. Holota, M. Holienčinová, M. Kotus and J. Chrastina
The use of TOPSIS method in the manufacturing process of clutch plate of agricultural machinery
Abstract |
Full text PDF (242 kB)

The use of TOPSIS method in the manufacturing process of clutch plate of agricultural machinery

T. Holota¹*, M. Holienčinová², M. Kotus³ and J. Chrastina¹

¹Slovak University of Agriculture in Nitra, Faculty of Engineering, Department of building equipment and technology safety, Tr. A. Hlinku 2, SK 949 76 Nitra, Slovakia
²Slovak University of Agriculture in Nitra, Faculty of Economics and Management, Department of Marketing and Trade, Tr. A. Hlinku 2, SK 949 76 Nitra, Slovakia
³Slovak University of Agriculture in Nitra, Faculty of Engineering, Department of Quality and Engineering Technologies, Tr. A. Hlinku 2, SK 949 76 Nitra, Slovakia
*Correspondence: tomas.holota@gmail.com

Abstract:

Rating and determination of factors of importance affecting the pressing process of clutch plates is, in most organizations, an individual and subjective decision of individual employees.
The paper describes the process of relevant material selection for the organization. This process is designed with the aim to use the exact methods in order to replace subjective material selection by objective process. The most appropriate method appears the multi-criteria statistical analysis TOPSIS.
TOPSIS method has been widely applied in many areas with good results as the choice of marketing strategy, optimization of mechatronic systems, safety management, business competitions, management of crisis situations, assessment of trends, planning and many others. This is the first time when TOPSIS method was used in the selection of the most important causes affecting the pressing process of clutch plates.
The aim of this paper is to carry out the multi-criteria statistical analysis TOPSIS which evaluates and determines the order of importance of various factors affecting the pressing process of clutch plate which is a component part of agricultural machinery. On the basis of performed method we can prevent from subjective evaluation and make rational decisions based on the statistical analysis.

Key words:

, , , ,




603-610 J. Ružbarský, M. Müller and P. Hrabe
Analysis of physical and mechanical properties and of gross calorific value of Jatropha curcas seeds and waste from pressing process
Abstract |
Full text PDF (630 kB)

Analysis of physical and mechanical properties and of gross calorific value of Jatropha curcas seeds and waste from pressing process

J. Ružbarský¹*, M. Müller² and P. Hrabe²

¹Technical University of Košice, Faculty of Manufacturing Technologies, Department of Technological Systems Operation, Štúrova 31, Prešov 08001, Slovak Republic;
*Correspondence: juraj.ruzbarsky@tuke.sk
²Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Science, Kamýcká 129, 16521 Prague, Czech Republic

Abstract:

The  research  was  performed  with  an  aim  to  investigate  physical  and  mechanical properties and a gross calorific value of Jatropha curcas seeds and particular products (waste) of  a  pressing  process.  Sizes  of  seeds,  an  energy  which  is  necessary  for  pressing  an  oil  and  a setting  of  the  gross  calorific  value  were  tested  parameters.  Tests  were  performed  at  Jatropha Curcas seeds of a brown colour (that means gnaw). The pressing process waste amounts up to 80%. The proportion of the kernel mass to the coat mass is 1:0.62. From the research results it follows that the coat mass is 37.60%. The seed coat belongs among interesting material owing to  the  gross  calorific  value.  For pressing  the  whole  seeds  it  is  necessary  of  about  30%  higher energy than for pressing the kernels of Jatropha curcas.

Key words:

, , , , ,