New French reference calorimeter for gas calorific value measurements

Haloua, Frédérique; Hay, Bruno; Filtz, Jean-Rémy

doi:10.1007/s10973-008-9701-z

Cited by 21 publications

(17 citation statements)

References 3 publications

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“…Figure 4 shows the temperature profile of the methane combustion. The calorific value of the methane can be calculated by (2) in which, T comb indicates the temperature increase by the methane combustion and m gas is the mass of the burnt methane. The measured calorific value of the methane was 55.29 kJ/g which is 0.4% difference with the value specified in ISO 6976.…”

Section: Resultsmentioning

confidence: 99%

The calorific value measurement of methane using metal burner

Lee

Kwon

Joung

2015

17th International Congress of Metrology

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Abstract. With the diversification of the natural gas origin and the variations of the gas composition, the accurate determination of the gas calorific value is very important in the natural gas industry and the national standardization. A new reference gas calorimeter is developed by KRISS in Korea based on the isoperibolic principle. In this principle, a gas burner is placed in the calorimeter vessel filled with water and the calorimeter is placed in the constant temperature water bath. Methane, oxygen, argon gas are injected in the gas burner and the combustion takes place for 30 minutes. The temperature variation of the water in the calorimeter vessel is measured by Pt25 thermometer. Electrical heater coils around the heater and simulates actual combustion process to find the heat capacity of the whole calorimeter vessel. The gas burner is usually made of pyrex glass but it has the disadvantages of the brittleness and irregular manufacturing. A metal burner is first invented and applied in this study to achieve precise manufacturing and standardization as well as the hardness. A calorific value of methane is measured with the developed gas calorimeter and the result shows within 0.4% difference between the experiment and the reference.

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Section: Resultsmentioning

confidence: 99%

The calorific value measurement of methane using metal burner

Lee

Kwon

Joung

2015

17th International Congress of Metrology

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“…After reviewing and analysing the combustion chambers published by several researchers [2], [3], [4] it was found that they have in common a cylindrical body with hemispherical lid. However, to improve the performance in this work the geometry was modified to an elliptical chamber.…”

Section: Designmentioning

confidence: 99%

“…Today some institutions develop their own devices to measure the SCV of methane and other gases. Some of them are: GERG (Groupe Européen de Recherches Gazières) with work from six partners [2]; LNE (Laboratoire National de Métrologie et d'Essais) in France [3] and OFGEM (Office of Gas and Electricity Markets) by Dale et al [4].…”

Section: Introductionmentioning

confidence: 99%

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Development of combustion chamber of a reference calorimeter with numerical analysis

Gonzalez-Duran¹,

Estrada-Baltazar²,

Lira-Cortes

2015

ACTA IMEKO

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<p class="Abstract">The present work focuses on the numerical modeling of two combustion chambers to be used inside an isoperibolic calorimeter to measure the Superior Calorific Value (SCV) from natural gas. This work shows performance of both chambers working under isoperibolic principle, through simulations based on Computational Fluid Dynamics (CFD). The aim of the work is expose the performance of chamber combustion published in the literature versus another one proposed in this work, and show how was improved the performance of the chamber which proposed in this work by changing the geometry. And it is checked by analyzing temperature of burned gases at exit of combustion chamber.</p>

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“…For this reason, and according to its experience in the field of calorimetry [6][7][8][9][10], LNE-LCM developed a high temperature reference facility. A commercial heat conduction differential Calvet calorimeter was modified [11] and new procedures for calibration and measurement were implemented.…”

Section: Introductionmentioning

confidence: 99%

Toward New High Temperature Reference Materials for Calorimetry and Thermal Analysis

Razouk

Hay

Himbert

2014

EPJ Web of Conferences

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Abstract. The French National Metrology Laboratory LNE-LCM has developed a high temperature reference facility for accurate measurements of the specific heat capacity and of the enthalpy of fusion of materials over the temperature range [23 °C, 1000 °C]. The metrological approach was to modify a commercial Calvet calorimeter in order to lower the uncertainty of measurement and to insure the metrological traceability of the measurements to the SI units, in particular by designing a new calibration system. The enthalpies of fusion of pure metals (indium, tin and silver) and of a binary alloy Ag-28Cu have been measured. The results obtained on the three pure metallic materials are in very good agreement with data obtained by other National Metrology Institutes (NMIs) using adiabatic calorimetry.

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New French reference calorimeter for gas calorific value measurements

Cited by 21 publications

References 3 publications

The calorific value measurement of methane using metal burner

The calorific value measurement of methane using metal burner

Development of combustion chamber of a reference calorimeter with numerical analysis

Toward New High Temperature Reference Materials for Calorimetry and Thermal Analysis

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