The optimization design and parametric study of thermoelectric radiant cooling and heating panel

Shen, Limei; Tu, Zhilong; Hu, Qiang; Cheng, Tao; Chen, Huanxin

doi:10.1016/j.applthermaleng.2016.10.094

Cited by 63 publications

(22 citation statements)

References 15 publications

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“…The amount of heat conduction at the hot side and cold side of TEM to the panel and base plate (Q cond,1 and Q cond,3 ) was calculated according to the simple heat conduction equations of Equations (17) and 18, independently. Additionally, the rejected and absorbed heat of TEM were derived using Equations (1) and (2), respectively.…”

Section: Heat-transfer Modelmentioning

confidence: 99%

“…Thermoelectric modules (TEMs) are attracting increasing attention as a non-vapor compression based technology [1][2][3][4][5] for preventing ozone depletion and global warming. The TEM applications in heating, ventilation and air conditioning (HVAC) can be categorized into air cooling/heating [6][7][8][9][10][11], liquid cooling/heating [12][13][14], and radiant cooling/heating [15][16][17][18][19][20]. Among the many applications of TEMs, the thermoelectric radiant panel (TERP) has much interest owing to its good constructability, compact size, and potential as a parallel cooling and heating device under stable thermal loads [21].…”

Section: Introductionmentioning

confidence: 99%

“…Luo et al [16] proposed a building-integrated photovoltaic thermoelectric wall system for radiant cooling and heating, which exhibited annual energy savings of 29.19-62.94 kWh/m 2 in Hong Kong in a simulation. Shen et al [17] developed a mathematical model to optimize the TERP design for better cooling and heating performance. Their recommended number of TEMs was 16/m 2 for TERP.…”

Section: Introductionmentioning

confidence: 99%

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Numerical and Experimental Study on the Performance of Thermoelectric Radiant Panel for Space Heating

Lim

Jeong

2020

Materials

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The purpose of this study is to investigate the suitable operation and performance of a thermoelectric radiant panel (TERP) in the heating operation. First, the hypothesis was suggested that the heating operation of TERP can operate without a heat source at the cold side according to theoretical considerations. To prove this hypothesis, the thermal behavior of the TERP was investigated during the heating operation using a numerical simulation based on the finite difference method. The results indicated that it is possible to heat the radiant panel using a thermoelectric module without fan operation via the Joule effect. A mockup model of the TERP was constructed, and the numerical model and hypothesis were validated in experiment 1. Moreover, experiment 2 was performed to evaluate the necessity of fan operation in the heating operation of TERP regarding energy consumption. The results revealed that the TERP without fan operation showed the higher coefficient of performance (COP) in the heating season. After determining the suitable heating operation of the TERP, prediction models for the heating capacity and power consumption of the TERP were developed using the response surface methodology. Both models exhibited good R2 values of >0.94 and were validated within 10% error bounds in experimental cases. These prediction models are expected to be utilized in whole-building simulation programs for estimating the energy consumption of TERPs in the heating mode.

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Section: Heat-transfer Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Numerical and Experimental Study on the Performance of Thermoelectric Radiant Panel for Space Heating

Lim

Jeong

2020

Materials

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“…Even though it is theoretically feasible to build complex networks in order to provide water for any panel arrangement, it seems obvious to test basic arrangements first for the sake of simplicity. More recently, however, another technique has been used to remove heat from an SRCP without using a cooling fluid: it relies on thermoelectric devices as exemplified in [17,18]. In the latter study, cooling units were sized down to 0.1 x 0.1 m 2 panels, and densities of radiant panels ranging from 9 to 25 per square meter were considered.…”

Section: Introductionmentioning

confidence: 99%

Influence of the arrangement of multiple radiant ceiling panels on the radiant temperature field

Labat

Lorente

Mosa

2020

International Journal of Thermal Sciences

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The use of radiant systems for cooling purposes in buildings is attracting considerable attention, particularly for Suspended Radiant Ceiling Panels (SRCPs). However, the arrangement of the panels on the ceiling and the influence on radiative heat transfer is rarely discussed in the literature. The objective of this paper is to provide a numerical study of the radiative heat transfer at room scale when the size and the number of SRCPs varies. It has been observed that the use of a single large panel would result in a low average temperature, which is desirable, but also in poor uniformity of the temperature field. Here, a genetic algorithm is proposed and tuned to determine the positions of multiple SRCPs that would improve uniformity. It is shown that much better uniformity can be obtained, with only a moderate increase in the average temperature, for 10 panels or more. The differences between the use of a single large panel and multiple panels is noteworthy when SRCPs cover from 10 to 70% of the ceiling area.

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“…[10][11][12] Compared with conventional thermoelectric materials, many novel thermoelectric mechanisms and technologies such as superlattices and quantum dots have been investigated recently.…”

mentioning

confidence: 99%

Folded Thermoelectric Cooling Structure with Bi₂Te₃-Based Thin-Film Superlattices

Wang¹,

Zhang²,

Chai³

et al. 2018

ECS J. Solid State Sci. Technol.

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The high temperature makes electronic components bear excessive thermal loads, which significantly degrade the performance of devices. The thermal issues in technological applications, such as DNA microarrays and micro-electrothermal systems, have been addressed by using high performance thermoelectric cooler. In this paper, a folded structure of thermoelectric elements with Bi 2 Te 3 -based thin-film superlattices (TFSL) material is proposed. The folded structure makes the minimum thickness of the thermocouples as low as 30 μm. Also, the passing electrical current induced by the thin thickness can be decreased to milliampere order of magnitude from ampere with traditional structure. The temperature difference between the hot and cold sides of thermoelectric cooler (TEC) is improved up to 2-16 times than that of the conventional structure. The proposed structure model agreed well with simulation results for relationships between temperature difference and sizes of thermocouples. The presented folded construction with thin-film superlattices materials can provide a viable solution for high-power, as well as high heat flow density device cooling. For state-of-the-art high-performance electronic devices, the generated overloads heat can result in high temperature hot-spots, which will significantly reduce the lifetime of devices. By integrating thermoelectric cooler devices, the peak temperature of these hot-spots can be targeted and eliminated. Compared with the conventional cooling solutions with inefficiency and hulking features, thermoelectric cooler with high cooling capacity and easy integration can apparently improve the performance and reliability of electric devices and optoelectronic components.1-3 Moreover, due to the absence of moving parts or working fluids, thermoelectric cooling technology has been used practically in fields of aerospace, 4,5 medicine, 6,7 vehicles 8,9 and instrumentation. [10][11][12] Compared with conventional thermoelectric materials, many novel thermoelectric mechanisms and technologies such as superlattices and quantum dots have been investigated recently.13-15 For superlattices materials, every layer contains several or dozens of atoms. Such the ultra-short-period superlattices can offer tremendous quantumconfinements and interface scattering than bulk material. Using quantum-confinement effects, an enhanced density of states close to the Fermi energy can be obtained. With the same effect, a ZT of 0.9 at 300 K has been reported in PbSe 0.98 Te 0.02 /PbTe quantum-dot structure. 16 In addition, the higher area versus volume ratio, lower feature size of thin-film superlattices and the enhanced of phonon scattering reduce the phonon mean free path of carriers, which in turn reduces the thermal conductivity.17 Furthermore, ultra-short-period superlattices offer significantly higher in-plane carrier mobility, therefore, an enhanced carrier mobility in monolayer-range superlattices is effectively carried out in the cross-plane direction for certain superlattices. 1 Base on the above a...

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The optimization design and parametric study of thermoelectric radiant cooling and heating panel

Cited by 63 publications

References 15 publications

Numerical and Experimental Study on the Performance of Thermoelectric Radiant Panel for Space Heating

Numerical and Experimental Study on the Performance of Thermoelectric Radiant Panel for Space Heating

Influence of the arrangement of multiple radiant ceiling panels on the radiant temperature field

Folded Thermoelectric Cooling Structure with Bi₂Te₃-Based Thin-Film Superlattices

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The optimization design and parametric study of thermoelectric radiant cooling and heating panel

Cited by 63 publications

References 15 publications

Numerical and Experimental Study on the Performance of Thermoelectric Radiant Panel for Space Heating

Numerical and Experimental Study on the Performance of Thermoelectric Radiant Panel for Space Heating

Influence of the arrangement of multiple radiant ceiling panels on the radiant temperature field

Folded Thermoelectric Cooling Structure with Bi2Te3-Based Thin-Film Superlattices

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Folded Thermoelectric Cooling Structure with Bi₂Te₃-Based Thin-Film Superlattices