Cave Microclimate Impact on Karst Processes: Role of Cave Ventilation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F08%3A00028040" target="_blank" >RIV/00216224:14310/08:00028040 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Cave Microclimate Impact on Karst Processes: Role of Cave Ventilation

Popis výsledku v původním jazyce

Cave ventilation and its impact on microclimatic parameters were studied in the Císařská Cave (the northern part of the Moravian Karst, Czech Republic) during 2006-2007 period. Air fluxes through cave oscillated with a period of few seconds and amplitudeabout 0.1 m3 s-1. Mean volume fluxes through the lower and higher entrances, respectively, varied from +0.10 to -0.05 m3 s-1 and from -0.19 to +0.07 m3 s-1 as outdoor temperature varied between -3.2 and 31.9 deg C. The unbalanced fluxes indicate minor additional fluxes in/out of cave. A nonlinear dependence of air flux on outdoor temperature was found. The fluxes were lowest at 13 deg C. They oscillated with 0.03 m3 s-1 amplitude and changed their directions. The cave ventilation, v = 0.059 hour-1, andresidence time, tau = 17 hours, were calculated from the maximum flux of 0.188 m3 s-1. The residence time value indicates that cave atmosphere should be completely exchanged during 17 hours under these conditions and at an ideally piston

Název v anglickém jazyce

Cave Microclimate Impact on Karst Processes: Role of Cave Ventilation

Popis výsledku anglicky

Cave ventilation and its impact on microclimatic parameters were studied in the Císařská Cave (the northern part of the Moravian Karst, Czech Republic) during 2006-2007 period. Air fluxes through cave oscillated with a period of few seconds and amplitudeabout 0.1 m3 s-1. Mean volume fluxes through the lower and higher entrances, respectively, varied from +0.10 to -0.05 m3 s-1 and from -0.19 to +0.07 m3 s-1 as outdoor temperature varied between -3.2 and 31.9 deg C. The unbalanced fluxes indicate minor additional fluxes in/out of cave. A nonlinear dependence of air flux on outdoor temperature was found. The fluxes were lowest at 13 deg C. They oscillated with 0.03 m3 s-1 amplitude and changed their directions. The cave ventilation, v = 0.059 hour-1, andresidence time, tau = 17 hours, were calculated from the maximum flux of 0.188 m3 s-1. The residence time value indicates that cave atmosphere should be completely exchanged during 17 hours under these conditions and at an ideally piston

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DD - Geochemie

OECD FORD obor

—

Projekt

<a href="/cs/project/GA205%2F03%2F1128" target="_blank" >GA205/03/1128: Recentní krasové procesy: destrukce speleotém</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

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

Název periodika

Slovenský kras (Acta Carsologica Slovaca)

ISSN

0560-3137

e-ISSN

—

Svazek periodika

46

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

3

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—