Influence of thermal conditions on the response of a calorimeter dedicated to nuclear heating measurements

Brun, J.; Reynard-Carette, C.; Vita, C. De; Carette, M.; Amharrak, H.; Lyoussi, A.; Villard, Jean‐François; Guimbal, P.; Fourmentel, D.

doi:10.1109/icsens.2014.6985258

Cited by 7 publications

(4 citation statements)

References 7 publications

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“…The modularity of these sensors enables to meet a wide range of needs, including a prototype for measuring the 20 W.g -1 in aluminum expected in the Jules Horowitz Reactor [3]. In 2015, a new differential calorimeter (named CALORRE) comprising two compact calorimetric cells using predominantly radial heat transfer was patented by AMU and CEA [10] and successfully qualified in the Polish MARIA research reactor [11]. Recently, this calorimeter has been improved as part of the CALOR-I project to achieve a smaller size of 89.5 mm axial height (instead of 222.5 mm previously) and an innovative design to eliminate contact thermal resistances [12].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical results for a new single-cell calorimeter dedicated to nuclear heating rate measurement

Rebaud,

Volte,

Carette

et al. 2023

EPJ Web Conf.

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This paper presents the study of a new innovative heat flow single-cell calorimeter dedicated to the measurement of the nuclear heating rate in research reactors. Before irradiating this type of sensor, it is necessary to characterize it under laboratory conditions to determine its metrological properties. A general description (design, geometry and materials nature) of this new calorimeter will be given, focusing on the motivations that led to its development. This part will be followed by a presentation of the experimental set-up and operating protocol used to characterize this sensor. The sensor sensitivity and response time will be quantified and discussed with a comparison of those obtained with previous calorimeters. In parallel with these experimental characterizations, parametric 3-D numerical simulations will be carried out using COMSOL Multiphysics software. These results, obtained both experimentally and numerically, will be compared to present a complete calorimeter study under laboratory conditions.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical results for a new single-cell calorimeter dedicated to nuclear heating rate measurement

Rebaud,

Volte,

Carette

et al. 2023

EPJ Web Conf.

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“…It is sometimes called a gamma thermometer [6,14,15] when the sample is made of stainless steel and contains only one temperature sensor. The second kind, developed and tested in France, is based on a multi-cell calorimeter (from two cells [16,17,18], to four cells [19,20]). The IN-CORE, MAHRI-BETHY and GAMMA-MAJOR programs are carried out by coupling experimental works with thermal numerical simulations and with the modeling of interactions between nuclear radiation and matter.…”

Section: Introductionmentioning

confidence: 99%

Responses of Single-Cell and Differential Calorimeters: from Out-of-Pile Calibration to Irradiation Campaigns.

Brun

Tarchalski

Reynard-Carette

et al. 2016

IEEE Trans. Nucl. Sci.

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Abstract-The nuclear radiation energy deposition rate (unit usually employed: W.g -1 ) is a key parameter for the thermal design of experiments on materials and nuclear fuel carried out in experimental channels of irradiation reactors, such as the French reactor in Saclay called OSIRIS or the Polish reactor named MARIA. In particular the quantification of nuclear heating allows the prediction of heat and thermal conditions induced in irradiated devices and/or structural materials. Various sensors are used to quantify this parameter, in particular radiometric calorimeters, also known as in-pile calorimeters. Two main kinds of in-pile calorimeter exist possessing two geometries and two measurement principles: the single-cell calorimeter and the differential calorimeter. The present work focuses on specific examples of these calorimeter types, from the step of their out-of-pile calibration (transient and steady experiments respectively) to the comparison between numerical and experimental results obtained from two irradiation campaigns (French and Polish reactors). The main aim of this paper is to propose a steady numerical approach to estimate the single-cell calorimeter response under irradiation conditions.

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“…The usual calibration curves are obtained under laboratory conditions without nuclear radiation thanks to heaters located into the head of the calorimetric cells. Experimental studies concerning the out-of-pile calibration were presented in detail and discussed by Brun et al for two types of calorimetric cell (CALMOS type and CARMEN type) [132]. The authors established the calibration curves of each calorimetric cell by applying increments of electrical current into the heaters.…”

Section: Differential Calorimetersmentioning

confidence: 99%

“…Then for each steady thermal state, the authors calculated an average temperature for each thermocouple and consequently defined the calorimetric cell calibration curve by plotting the temperature difference between the hot and cold points versus the electrical power. Brun et al showed that a calorimetric cell with a lower radius of pedestal leads to a more sensitive sensor, but the calibration curve becomes a quadratic curve due to the increase of the temperature and consequently the increase of the radial heat transfers (conductive and radiative transfers) [132]. They studied the repeatability of the response of the two sensors, their response times, the influence of the external fluid flow on the calibration curves (from a Reynolds number equal to 557 to 1608), and the spatial heat evacuation towards the sensor jacket thanks to heat fluxmeter.…”

Section: Differential Calorimetersmentioning

confidence: 99%

Nuclear instrumentation and measurement: a review based on the ANIMMA conferences

Giot

Vermeeren

Lyoussi

et al. 2017

EPJ Nuclear Sci. Technol.

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Abstract. The ANIMMA conferences offer a unique opportunity to discover research carried out in all fields of nuclear measurements and instrumentation with applications extending from fundamental physics to fission and fusion reactors, medical imaging, environmental protection and homeland security. After four successful editions of the Conference, it was decided to prepare a review based to a large extent but not exclusively on the papers presented during the first four editions of the conference. This review is organized according to the measurement methodologies: neutronic, photonic, thermal, acoustic and optical measurements, as well as medical imaging and specific challenges linked to data acquisition and electronic hardening. The paper describes the main challenges justifying research in these different areas, and summarizes the recent progress reported. It offers researchers and engineers a way to quickly and efficiently access knowledge in highly specialized areas.

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Influence of thermal conditions on the response of a calorimeter dedicated to nuclear heating measurements

Cited by 7 publications

References 7 publications

Experimental and numerical results for a new single-cell calorimeter dedicated to nuclear heating rate measurement

Experimental and numerical results for a new single-cell calorimeter dedicated to nuclear heating rate measurement

Responses of Single-Cell and Differential Calorimeters: from Out-of-Pile Calibration to Irradiation Campaigns.

Nuclear instrumentation and measurement: a review based on the ANIMMA conferences

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