Uncertainty estimation of the mean specific heat capacity for the major gases contained in biogas

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F20%3A43918021" target="_blank" >RIV/62156489:43210/20:43918021 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.17221/4/2020-RAE" target="_blank" >https://doi.org/10.17221/4/2020-RAE</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17221/4/2020-RAE" target="_blank" >10.17221/4/2020-RAE</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Uncertainty estimation of the mean specific heat capacity for the major gases contained in biogas

Popis výsledku v původním jazyce

The paper is focused on the uncertainty estimation of the mean isobaric and isochoric specific heat capacity calculation. The differences in the data among the individual sources for the technical calculation are presented in the first part of the paper. These differences are discussed in this paper. Research of scientific work with listed values of measurement uncertainties has been carried out in the second part of the paper. Furthermore, mathematical models were calculated which describe the dependence of the specific heat capacities and temperature. The maximal error models were carried out. Two approaches were used for the calculation of the mean specific heat capacity. The first approach is the calculation with help of integration of the function which describes the dependence of the specific heat capacity and temperature. The second approach is the calculation of a simple arithmetic mean of the specific heat capacity related to the maximal and minimal value of the temperature interval. The conclusion of the work shows that the time-effective second way is applicable in the case of a narrow temperature range. A value of 5.5% (Δt = 200 K) was reached for the relative uncertainty. This is a similar value to that in the case of using the first way.

Název v anglickém jazyce

Uncertainty estimation of the mean specific heat capacity for the major gases contained in biogas

Popis výsledku anglicky

The paper is focused on the uncertainty estimation of the mean isobaric and isochoric specific heat capacity calculation. The differences in the data among the individual sources for the technical calculation are presented in the first part of the paper. These differences are discussed in this paper. Research of scientific work with listed values of measurement uncertainties has been carried out in the second part of the paper. Furthermore, mathematical models were calculated which describe the dependence of the specific heat capacities and temperature. The maximal error models were carried out. Two approaches were used for the calculation of the mean specific heat capacity. The first approach is the calculation with help of integration of the function which describes the dependence of the specific heat capacity and temperature. The second approach is the calculation of a simple arithmetic mean of the specific heat capacity related to the maximal and minimal value of the temperature interval. The conclusion of the work shows that the time-effective second way is applicable in the case of a narrow temperature range. A value of 5.5% (Δt = 200 K) was reached for the relative uncertainty. This is a similar value to that in the case of using the first way.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

40500 - Other agricultural sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Research in Agricultural Engineering

ISSN

1212-9151

e-ISSN

—

Svazek periodika

66

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

8

Strana od-do

52-59

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85095735771