Wyniki wyszukiwania - BazTech

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Operational characteristics of selected marine turbogenerators powered by steam from auxiliary oil-fired boilers

Behrendt C.

Zeszyty Naukowe Akademii Morskiej w Szczecinie

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2015

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nr 44 (116)

9--13

EN

This paper describes such quantitative characteristics and operational parameters for marine turbogenerator as: efficiency, and steam consumption per unit or hour for various loads. Characteristic numbers and operational parameters were estimated from the results of operational tests of a turbogenerator aboard a petroleum tanker.

2

The development of technology for obtaining essential oils from Scots pine tree folige

Daugavietis M., Spalvis K.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2014

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No. 87

51--54

EN

The development of technology for obtaining essential oils from Scots pine tree folige. Essential oils have been well known for several decades. They are very commonly used in several cosmetic products and aromatherapy for their good smell and benefits and effects on bacteria. Conifer tree essential oils are the organic combination mixture (mainly terpene) which is obtained from the foliage of a pine – needles and twigs. The environmental factors that influence and effect the production of essential oil in Scots pine trees (Pinus Silvestri)s has been investigated in this paper. In addition, the overall study in this research project analyses the consumption of essential oils and describes the industrial equipment used for the production of essential oils from the needles. Also the results of essental oils and the seasonal dynamic quality in Latvia are investigated. According to the results of the experiment performed in this study, the time substance of essential oils and water disengagement was defined in laboratory conditions where the temperature ranged from 20 to 90 oC , maintaining constant temperature in thermostat. By using specific pilot equipment various tree steam distillation process parameters of essential oils of pine were investigated in the study. In general, the main objectives of the research is to point out and examine the results of essential oils, their quality, overall time of the process, the consumption of the steam depending on the hydrodistolation process with a special system, intensity and to identify the stages of an ordinary foliage. The results of the research can be used to optimize the processing of needles oil and manufucture new needles oil processing plant.

3

Wpływ zawartości włókna na proces granulowania materiałów paszowych

Kulig R., Laskowski J.

Inżynieria Rolnicza

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2006

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R. 10, nr 5(80)

365-374

PL

W pracy przedstawiono wyniki badań wpływu zawartości włókna w materiale paszowym na parametry procesu granulowania prowadzonego z wykorzystaniem kondycjonowania parowego oraz z dodatkiem wody. Materiał badawczy stanowiła mieszanina pszenicy z lucerną o zawartości włókna od 2,74 do 18,34%. W czasie granulowania rejestrowano charakterystykę zużycia pary i ciepła oraz mocy elektrycznej, na podstawie czego określono energochłonność procesu. Stwierdzono, iż zużycie pary i ciepła zwiększa się wprost proporcjonalnie do wzrostu udziału włókna w mieszance poddawanej granulowaniu. Jednocześnie zaobserwowano, iż średnie różnice wilgotności materiału po kondycjonowaniu parowym (pomiędzy minimalną a maksymalną zawartością włókna) wynoszą 2,65%. Wykazano, że ze wzrostem zawartości włókna w materiale zwiększa się energochłonność jednostkowa prasowania; średnio od 150 do 335 kJ*kg-1 dla kondycjonowania parowego i od 210 do 500 kJ*kg-1 dla kondycjonowania z dodatkiem wody. Natomiast ze względu na energochłonność całkowitą granulowania, mniejsze wartości uzyskano w przypadku stosowania metody granulowania z wykorzystaniem kondycjonowania z dodatkiem wody (średnio o 25%).

EN

The study the results of research on the impact of fibre content in feed material on the parameters of the granulation process done by using steam conditioning and with addition of water. The test material was a mixture of wheat and alfalfa with fibre content from 2.74 to 18.34%. During the granulation, the characteristics of steam, heat and electrical power consumption were recorded, based on which the process energy consumption was determined. It was found that steam and heat consumption increases in proportion to the increase of fibre share in the mixture undergoing granulation. It was also observed that the average difference of humidity of the material after steam conditioning (between the minimum and maximum fibre content) is 2.65%. It was established that together with the increase of fibre content in the material the unit energy consumption for compression increases; on the average from 150 to 335 kJ*kg-1 for steam conditioning and from 210 to 500 kJ*kg-1 for conditioning with addition of water. As far as of total energy consumption for granulation is concerned, lower values were obtained in case of using the granulation method with conditioning with addition of water (on the average by 25%).

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Pomiary zużycia pary wodnej w procesie kondycjonowania surowców i mieszanek paszowych

Kulig R., Laskowski J.

Inżynieria Rolnicza

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2002

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R. 6, nr 6

331--338

PL

Przedstawiono prototypowe stanowisko badawcze procesu granulowania mieszanek paszowych. W szczególności zaprezentowano komputerowy układ pomiarowy do zliczania przepływu objętościowego i masowego pary wodnej. Pomiary wykonane przez układ pozwalają na wyznaczenie wartości jednostkowego zużycia pary oraz jednostkowych nakładów energii cieplnej w procesie kondycjonowania.

EN

The prototype of experimental stand for testing of pelleting the feed mixtures was described. Computer aided measuring system to counting of the steam flow by volume and by weight, was presented in particular. The measurements performed by the system enabled quantitative determination of the specific steam consumption as well as the specific thermal energy inputs in feed conditioning process.