Dielectric properties of hops – an effect of bulk density

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41310%2F17%3A75262" target="_blank" >RIV/60460709:41310/17:75262 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.17221/34/2017-RAE" target="_blank" >http://dx.doi.org/10.17221/34/2017-RAE</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/34/2017-RAE" target="_blank" >10.17221/34/2017-RAE</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric properties of hops – an effect of bulk density

Popis výsledku v původním jazyce

Continuous detection of basic physical properties of freshly picked and cleaned wet hop cones would be very helpful for better control and automation of harvesting processes. That is why the main aim of this article was to determine the effects of bulk density changes on dielectric properties of freshly picked hop cones. Relative permittivity and loss factor were measured using a newly developed capacitance measuring device. A strong linear correlation between fresh hops relative permittivity and bulk density was found. This finding could be used e.g. for consequent hop drying process control. Significant differences between tested hop varieties were observed for both relative permittivity and loss factor measurements. These differences cannot be explained only by a slightly different moisture content of the measured varieties and ambient temperature changes. Measured material loss factor was only slightly affected by bulk density changes. However, relative permittivity was affected by bulk density c

Název v anglickém jazyce

Dielectric properties of hops – an effect of bulk density

Popis výsledku anglicky

Continuous detection of basic physical properties of freshly picked and cleaned wet hop cones would be very helpful for better control and automation of harvesting processes. That is why the main aim of this article was to determine the effects of bulk density changes on dielectric properties of freshly picked hop cones. Relative permittivity and loss factor were measured using a newly developed capacitance measuring device. A strong linear correlation between fresh hops relative permittivity and bulk density was found. This finding could be used e.g. for consequent hop drying process control. Significant differences between tested hop varieties were observed for both relative permittivity and loss factor measurements. These differences cannot be explained only by a slightly different moisture content of the measured varieties and ambient temperature changes. Measured material loss factor was only slightly affected by bulk density changes. However, relative permittivity was affected by bulk density c

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

40101 - Agriculture

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Research in Agricultural Engineering (Zemědělská technika)

ISSN

1212-9151

e-ISSN

—

Svazek periodika

63

Číslo periodika v rámci svazku

Special Issue

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

6

Strana od-do

18-23

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85041632884