Investigation into the use of thermoelectric modules as an alternative to conventional fluxmeters: Application to convective and radiative heat flux in buildings

Austin, Miguel Chen; Wu, Tingting Vogt; Sempey, Alain; Sommier, Alain; Dumoulin, Jean; Bruneau, Denis; Batsale, Jean‐Christophe; Yang, Yingying

doi:10.1016/j.ijthermalsci.2020.106653

Cited by 9 publications

(7 citation statements)

References 12 publications

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“…In recent years, thermoelectric modules (TEMs) have seen more use as a low-cost alternative for measuring heat flux. [5][6][7][8][9][10][11] While TEMs are used in a wide variety of applications, they are most commonly used as either a cooler or a power generator. 12,13 Thermoelectric coolers function as a solid state heat pump by receiving electrical power and uses the cold side of the TEM to remove heat from a system.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, a thermoelectric generator work as a solid state heat engine and takes advantage of the Seebeck effect to generate electrical power by means of a temperature difference. It should be noted that commercially available thermoelectric heat fluxmeters, including the previous attempts to use a TEM for heat flux measurement, are based on the Seebeck effect; although, the measured electrical voltage is used to determine the heat flux instead of generating power 5,7,[9][10][11] .…”

Section: Introductionmentioning

confidence: 99%

“…For a steady state or slow response system, a TEM can prove more useful in measuring heat flux over a conventional sensor. 9,10 Here we discuss and demonstrate the use of a commercial TEM as a heat fluxmeter with two operating schemes, namely passive and active modes. Passive mode is essentially the same as a conventional themoelectric heat flux measurement based on the Seebeck effect, which measures an output voltage induced by the temperature difference between the top and bottom junctions.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Commercial Thermoelectric Modules for Precision Heat FLux Measurement

Crossley¹,

Elahi²,

Ghashami³

et al. 2022

Preprint

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In this article, we present a cost-effective approach to the precision measurement of heat flux using commercial thermoelectric modules (TEMs). Two different methods of measuring heat flux with TEMs are investigated, namely passive mode based on the Seebeck effect and active mode based on the Peltier effect. For both modes, a TEM as a heat fluxmeter is calibrated to show a linear relation between the voltage across the TEM and the heat flow rate from 0 to 100 mW. While both modes exhibit sufficiently high sensitivities suitable for low heat flow measurement, active mode is shown to be ∼7 times more sensitive than passive mode. From the speculation on the origin of the measurement uncertainty, we propose a dual TEM scheme by operating the top TEM in passive mode while its bottom temperature maintains constant by the feedback-controlled bottom TEM. The dual-TEM scheme can suppress the sensitivity uncertainty by up to 4 times when compared to the single-TEM passive mode by stabilizing the bottom temperature. The response time of a 1.5 cm × 1.5 cm TEM is measured to be 8.90 ± 0.97 seconds for heating and 10.83 ± 0.65 seconds for cooling, which is slower than commercial heat fluxmeters but still fast enough to measure heat flux with a time resolution on the order of 10 seconds. We believe that the obtained results can facilitate the use of a commercial TEM for heat flux measurement in various thermal experiments.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Characterization of Commercial Thermoelectric Modules for Precision Heat FLux Measurement

Crossley¹,

Elahi²,

Ghashami³

et al. 2022

Preprint

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“…It has an average annual wind speed of 2.5 m/s and an average annual global radiation of 4.96 kWh/m 2 -day [45].Due to the way the TERMOFLUX LC temperature and thermal flow measurement module was designed, it was only capable of performing measurements of positive voltages. Because of the Seebeck effect, an electrical answer was generated when thermal flow passes through the Peltier plate[46]. Disturbances were caused by the reverse direction of the heat flow on the external surface of the roof of each chamber.…”

mentioning

confidence: 99%

Rice Husk-Based Insulators: Manufacturing Process and Thermal Potential Assessment

Cigarruista Solís,

Chen Austin,

Deago

et al. 2024

Materials

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The development of bio-insultation materials has attracted increasing attention in building energy-saving fields. In tropical and hot–humid climates, building envelope insulation is important for an energy efficient and comfortable indoor environment. In this study, several experiments were carried out on a bio-insulation material, which was prepared by using rice husk as a raw material. Square rice husk-based insultation panels were developed, considering the ASTM C-177 dimensions, to perform thermal conductivity coefficient tests. The thermal conductivity coefficient obtained was 0.073 W/(m K), which is in the range of conventional thermal insulators. In a second phase of this study, two experimental enclosures (chambers) were constructed, one with rice husk-based insulation panels and the second one without this insulation. The measures of the temperatures and thermal flows through the chambers were obtained with an electronic module based on the ARDUINO platform. This module consisted of three DS18B20 temperature sensors and four Peltier plates. Daily temperature and heat flux data were collected for the two chambers during the dry season in Panama, specifically between April and May. In the experimental chamber that did not have rice husk panel insulation on the roof, a flow of up to 28.18 W/m2 was observed, while in the chamber that did have rice husk panels, the presence of a flow toward the interior was rarely observed. The rice husk-based insulation panels showed comparable performance with conventional insulators, as a sustainable solution that takes advantage of a local resource to improve thermal comfort and the reduction of the environmental impact.

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“…Bunun yanında, Austin vd. [7], Peltierin yüzeysel ısı akışı ölçümü için Captec® ısı akışı sensörleri ile karşılaştırmıştır.…”

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Peltier'in ısı akış sensörü olarak kullanıldığı ısıl iletkenlik ölçüm metodu

Korkmaz¹,

Bayar²,

Palacı³

2021

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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İnorganik ısı yalıtım malzemesi geliştirilmesinde, katkılar, oranları, sinterleme sıcaklığı ve süresi gibi birçok parametre çalışıldığından çok sayıda numunenin ısıl iletkenliğini ölçmek gerekmektedir. Ayrıca şekillendirilme sonrası da numuneler küçük fırında sinterlendiğinden, genellikle kalıp ebatları küçük seçilmektedir. ARGE çalışmalarında bu küçük ebatlı numunelerin ısı iletim katsayısını tespit etmeye yönelik uygun maliyette sistem bulmak çok zordur. Bu çalışmada, Peltier'in ısı akış sensörü olarak kullanıldığı ısı iletim katsayısını belirlenmesinde kullanılmak üzere uygun maliyette alternatif cihaz geliştirilmiştir. Ölçüm prensibi, sıcaklıkları farklı iki plaka arasına yerleştirilen numunenin ısı iletim katsayısı ile üzerinden geçen ısı akışı bir başka deyişle Peltier'den ölçülen gerilim arasındaki orantıdan yola çıkarak belirlenmesine dayanmaktadır. Burada, mutlak ısı iletim katsayısı bilinen malzemelerin bu düzenekle ölçümünü yapılmış ve sıcak blok ile numune arasına yerleştirilen Peltier'de okunan gerilim arasında korelasyon kurulmuştur. Bu korelasyon sonrasında ısı iletkenlik katsayısı hesaplanmıştır. Bu düzenekle tespit edilen ısı iletim katsayısı ile bilinen değerler arasında %3 seviyelerinde sapma ile numunelerin ısı iletim katsayısın tespit edilebileceği görülmüştür.

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Investigation into the use of thermoelectric modules as an alternative to conventional fluxmeters: Application to convective and radiative heat flux in buildings

Cited by 9 publications

References 12 publications

Characterization of Commercial Thermoelectric Modules for Precision Heat FLux Measurement

Characterization of Commercial Thermoelectric Modules for Precision Heat FLux Measurement

Rice Husk-Based Insulators: Manufacturing Process and Thermal Potential Assessment

Peltier'in ısı akış sensörü olarak kullanıldığı ısıl iletkenlik ölçüm metodu

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