Measurement and mathematical modelling of heat loss in the pipe systems of a central heat distribution network

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F16%3A86099318" target="_blank" >RIV/61989100:27360/16:86099318 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.measurement.2016.09.033" target="_blank" >http://dx.doi.org/10.1016/j.measurement.2016.09.033</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.measurement.2016.09.033" target="_blank" >10.1016/j.measurement.2016.09.033</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Measurement and mathematical modelling of heat loss in the pipe systems of a central heat distribution network

Popis výsledku v původním jazyce

The measurement of physical parameters conducted on a central heat distribution network was used to determine heat loss using pipe dimensional analysis. All the developed models include all relevant physical parameters which are expected to have an impact on heat loss. The interdependence of these parameters is expressed as a function of similarity criteria. When creating a mathematical model, the so-called Buckingham it theorem is used. The model consists of the dependency of only two parameters, which greatly simplifies the currently-used procedure of calculation based on heat transfer theory. The proposed way of expressing heat loss is further interpreted in the article by two simpler modifications. In the simplest variant, the interdependence of dimensionless criteria is subtracted from the original diagram. The results presented in this article are valid for a diameter 125 mm (DN125) overhead network with insulation. The scope of the model was validated for ambient temperatures of -20 to +30 degrees C and a transported water temperature from 40 to 70 degrees C.

Název v anglickém jazyce

Measurement and mathematical modelling of heat loss in the pipe systems of a central heat distribution network

Popis výsledku anglicky

The measurement of physical parameters conducted on a central heat distribution network was used to determine heat loss using pipe dimensional analysis. All the developed models include all relevant physical parameters which are expected to have an impact on heat loss. The interdependence of these parameters is expressed as a function of similarity criteria. When creating a mathematical model, the so-called Buckingham it theorem is used. The model consists of the dependency of only two parameters, which greatly simplifies the currently-used procedure of calculation based on heat transfer theory. The proposed way of expressing heat loss is further interpreted in the article by two simpler modifications. In the simplest variant, the interdependence of dimensionless criteria is subtracted from the original diagram. The results presented in this article are valid for a diameter 125 mm (DN125) overhead network with insulation. The scope of the model was validated for ambient temperatures of -20 to +30 degrees C and a transported water temperature from 40 to 70 degrees C.

Druh

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

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Measurement

ISSN

0263-2241

e-ISSN

—

Svazek periodika

94

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

806-811

Kód UT WoS článku

000390512100087

EID výsledku v databázi Scopus

2-s2.0-84991226039