Laboratory determination of reflectance coefficient selected for the bedding materials related to the properties of the light sourced used in the barns

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00027031%3A_____%2F15%3A%230000594" target="_blank" >RIV/00027031:_____/15:#0000594 - isvavai.cz</a>

Výsledek na webu

<a href="http://tf.llu.lv/conference/proceedings2015/Papers/133_Pecen.pdf" target="_blank" >http://tf.llu.lv/conference/proceedings2015/Papers/133_Pecen.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Laboratory determination of reflectance coefficient selected for the bedding materials related to the properties of the light sourced used in the barns

Popis výsledku v původním jazyce

"The objective of this paper was determination of the reflectance coefficient of selected materials that can be used as bedding in barns for farm animals (partially dehydrated digestate from BGS and the same partially dehydrated digestate with the addition of calcium hydroxide (hydrated lime in the form of powder) in the amounts 0.25, 0.125 and 0.0625 kg per 1 kg of partially dehydrated digestate) depending on the optical properties of the light sources used in barns (mainly in particular linear fluorescent lights) and dampness of these materials. We compare the spectra of impacting and reflected light including their energy. We ascertained that with the increasing dampness of the bedding material, a small but varying shift in wavelengths of the spectrum of the reflected light towards higher values occurred for all materials. At the same time, also the value of the colour temperature of the reflected light changed. The impacting and also reflected light and their spectra were measured by the radiometer with 0.5 nm resolution. Measuring was executed in the measuring device and repeated for each selected bedding material and each light source. All results were statistically processed by nonparametrical methods due to small sets of the measured data."

Název v anglickém jazyce

Laboratory determination of reflectance coefficient selected for the bedding materials related to the properties of the light sourced used in the barns

Popis výsledku anglicky

"The objective of this paper was determination of the reflectance coefficient of selected materials that can be used as bedding in barns for farm animals (partially dehydrated digestate from BGS and the same partially dehydrated digestate with the addition of calcium hydroxide (hydrated lime in the form of powder) in the amounts 0.25, 0.125 and 0.0625 kg per 1 kg of partially dehydrated digestate) depending on the optical properties of the light sources used in barns (mainly in particular linear fluorescent lights) and dampness of these materials. We compare the spectra of impacting and reflected light including their energy. We ascertained that with the increasing dampness of the bedding material, a small but varying shift in wavelengths of the spectrum of the reflected light towards higher values occurred for all materials. At the same time, also the value of the colour temperature of the reflected light changed. The impacting and also reflected light and their spectra were measured by the radiometer with 0.5 nm resolution. Measuring was executed in the measuring device and repeated for each selected bedding material and each light source. All results were statistically processed by nonparametrical methods due to small sets of the measured data."

Druh

D - Stať ve sborníku

CEP obor

GG - Chov hospodářských zvířat

OECD FORD obor

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Projekt

<a href="/cs/project/QJ1210375" target="_blank" >QJ1210375: Výzkum systému chovu dojnic z hlediska optimalizace mikroklimatu a energeticko-ekonomické náročnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

14th International Scientific Conference ENGINEERING FOR RURAL DEVELOPMENT

ISBN

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ISSN

1691-5976

e-ISSN

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Počet stran výsledku

6

Strana od-do

823-828

Název nakladatele

Latvia University of Agriculture

Místo vydání

Jelgava

Místo konání akce

Jelgava

Datum konání akce

20. 5. 2015

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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