A new heat balance equation for sap flow calculation during continuous linear heating in tree sapwood

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43510%2F16%3A43909073" target="_blank" >RIV/62156489:43510/16:43909073 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.applthermaleng.2016.03.092" target="_blank" >http://dx.doi.org/10.1016/j.applthermaleng.2016.03.092</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.applthermaleng.2016.03.092" target="_blank" >10.1016/j.applthermaleng.2016.03.092</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A new heat balance equation for sap flow calculation during continuous linear heating in tree sapwood

Popis výsledku v původním jazyce

This article introduces a new &apos;&apos;linear heat balance (LHB) method&quot;&quot; that is based on exact (physically correct) equation analytically derived from fundamental conduction-convection heat transfer equation. Therefore, the aim of this paper is to derive and analyze a new heat balance equation for sap flow calculation from measured temperature differences around continuously heated needle. The formula is derived from the steady-state conduction and convection heat transfer equation with linear source of heat power. This paper deals with the theoretical (analytical and numerical) and experimental analysis of heat and water transfer in the conductive xylem (sapwood) of trees. The analysis and verification of the new formula is based on numerical simulation (using finite element method) and the new LHB method is demonstrated on experimentally measured data. This new approach is important not only because of more exact sap flow calculation but also for information about thermal conductivity that can be used for water content estimation

Název v anglickém jazyce

A new heat balance equation for sap flow calculation during continuous linear heating in tree sapwood

Popis výsledku anglicky

This article introduces a new &apos;&apos;linear heat balance (LHB) method&quot;&quot; that is based on exact (physically correct) equation analytically derived from fundamental conduction-convection heat transfer equation. Therefore, the aim of this paper is to derive and analyze a new heat balance equation for sap flow calculation from measured temperature differences around continuously heated needle. The formula is derived from the steady-state conduction and convection heat transfer equation with linear source of heat power. This paper deals with the theoretical (analytical and numerical) and experimental analysis of heat and water transfer in the conductive xylem (sapwood) of trees. The analysis and verification of the new formula is based on numerical simulation (using finite element method) and the new LHB method is demonstrated on experimentally measured data. This new approach is important not only because of more exact sap flow calculation but also for information about thermal conductivity that can be used for water content estimation

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

<a href="/cs/project/EE2.3.30.0017" target="_blank" >EE2.3.30.0017: Postdoktorandi v oborech biologických věd na MENDELU</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Applied Thermal Engineering

ISSN

1359-4311

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

532-538

Kód UT WoS článku

000379270300055

EID výsledku v databázi Scopus

2-s2.0-84964054365