Thesis--Catholic University of America. / Vita. Bibliography: p. 155-160.

Thesis--Catholic University of America. / Vita. Bibliography: p. 155-160.

The aim of dissertation was to evaluate physico-mechanical characteristics of pneumatic (membrane) press depending on pressing efficiency. As the result of economic evaluation was to determine the financial cost which occurs during pressing proces for 1 liter of juice, as well as make this analysis for different pressures.

This thesis describes methods of work and structural variants of wine presses used in modern wineries in detail. It summarizes strengths and weaknesses of technological solutions. The practical part of the thesis deals with the evaluation of two presses, each of which is based on a different principle. The effects of pressing were observed during the processing of three grape varieties -- Sauvignon, Chardonnay and Zweigeltrebe -- in 2011, 2012 and 2013. The amount of pressure, processing, most gain and productivity were assessed. The cost of processing one hectolitre of the product was fixed for both systems.

No description available.

No description available.

The basic of this work is the construction realization of membrane vacuum press, mark out for shaping thermoplastics by force of membrane. Specially designate for material Twintex. The work deals with the general conception and form this machines. Movement material in machine to the warm up parts and after it to moulding.

This diploma thesis was processed in the years 2018-2019 at the Institute of Horticultural Engineering of the Faculty of Horticulture of the Mendel University in Brno. The aim of this study was to verify and determine the yield of grapevine seed oil during pressing on a screw press with an emphasis on its working setting, especially on the revolutions per minute during pressing. Various possibilities of using marc and the seeds themselves were analyzed. However, we have focused on different ways of separation, seed drying technology and especially pressing methods. In the practical part were compared the results of the thousand grain weight, density of seeds, press performance and values of oil yield, as well as the content and density of oil in six selected varieties of Vitis vinifera L. Furthermore, a chapter dealing with the cost of operation was elaborated.

No description available.

No description available.