Experimental study and performance analysis of a solar thermoelectric air conditioner with hot water supply

Liu, Zhong Bing; Zhang, Ling; Gong, Guangcai; Luo, Yongqiang; Meng, Fangfang

doi:10.1016/j.enbuild.2014.10.053

Cited by 69 publications

(25 citation statements)

References 21 publications

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“…For example, thermoelectric cooling technologies are gaining more interest in the field of energy conservation in buildings [1,2]. In the former study of thermoelectric cooling technologies, thermoelectric devices made of traditional thermoelectric materials such as Bi 2 Te 3 were installed on the wall and window [3]. But if the concrete wall possesses thermoelectric characteristics itself, the application of its thermoelectric effect will be more effective and convenient for energy harvesting and refrigerating.…”

Section: Introductionmentioning

confidence: 99%

Enhanced thermoelectric effect of cement composite by addition of metallic oxide nanopowders for energy harvesting in buildings

Zhang

2016

Construction and Building Materials

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In this paper, metallic oxide nanopowders were incorporated in cement matrix to increase the thermoelectric effect of cement composites. It can be seen from the result that the Seebeck coefficient of these composites increased steadily with metallic oxide content. And the Seebeck coefficients of these composites were measured to be higher than 1000 μV/°C, which were about 10 times higher than that of fiber reinforced cement composites indicated earlier. The increased surface density of the electronic state near the Fermi energy level of the nanostructured metallic oxide is very possibly responsible for the enhanced Seebeck coefficient of the cement composites. The high Seebeck coefficient of this kind of cement composite is important for the potential application in energy harvesting and airconditioning system of future buildings.

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Section: Introductionmentioning

confidence: 99%

Enhanced thermoelectric effect of cement composite by addition of metallic oxide nanopowders for energy harvesting in buildings

Zhang

2016

Construction and Building Materials

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“…Liu et al [19] presented theoretical and experimental research of a thermoelectric solar air conditioner with the possibility of heat recovery for domestic water heating. The system was tested in laboratory conditions.…”

Section: Application Of Te Modules For Coolingmentioning

confidence: 99%

“…On the basis of achieved results the values of the system COP were estimated for two points of experiment series: for the lowest air temperature in the room, and at the end of measuring series, when temperature of water was 55°C (for 4 A 50.5°C). To determine the COP for the entire system, the following formula, suggested by the literature reports for studied type of system utilising TE module for air conditioning and water heating [18][19][20], was used: COP = (Qc + Qh) / (PTE + Pfan+Ppump) -1 (1) where: Qc -energy absorbed from the experimental room, Wh, Qh -energy generated on the hot side of the TE module, Wh, PTE -energy demand for TE module powering, Wh, Pfan -energy demand for fan powering, Wh, Ppump -energy demand for pump powering, Wh.…”

Section: Coefficient Of Performancementioning

confidence: 99%

Experimental investigation of thermoelectric cooling system with heat recovery

Gołębiowska

Żelazna

2019

E3S Web Conf.

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Thermoelectric modules are implements used as power generators and cooling devices. In case of TE module application for space cooling, it is highly recommended to reuse energy generated on the hot side of the module for example for domestic water heating. In this paper, an example of a small scale thermoelectric cooling system with heat recovery was presented. In the tested system, the performance of TE module was supported by two heat exchangers. On the cold side of the TE module the forced convection was provided by the implementation of aluminium heat sink integrated with fan. On the hot side a water heat exchanger was built in order to reuse waste energy to heat water in the water tank. Different values of current were applied to the TE module to observe the differences in the module performance. The correlation between the air temperature inside the experimental room and the water temperature in the tank were determined for all conducted series. In general, the best cooling effects were achieved when the water temperature in the tank was not higher than 26.4°C. The maximum reduction of temperature inside the experimental room was noted for the amperage 7 A and it was 11.7°C.

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“…Liu et al presents theoretical and experimental investigations of a novel solar TE air conditioner with hot water supply. The system has relatively remarkable COP that can be as high as approximately 4.51 in space cooling and water heating mode.…”

Section: Thermoelectric Cooling Applicationsmentioning

confidence: 99%

A comprehensive review of solar thermoelectric cooling systems

Sârbu

Dorca

2017

Int J Energy Res

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Summary The negative environmental impacts of burning fossil fuels have forced the energy research community seriously to consider renewable sources, such as naturally available solar energy. This paper provides an overview of solar thermoelectric (TE) cooling systems. Thus, this review presents the details referring to TE cooling parameters and formulations of the performance indicators and focuses on the development of TE cooling systems in recent decade with particular attention on advances in materials and modeling and design approaches. Additionally, the TE cooling applications have been also reviewed in aspects of electronic cooling, domestic refrigeration, air conditioning, and power generation. Finally, the possibility of solar TE cooling technologies application in “nearly zero” energy buildings is briefly discussed, and some future research directions are included. This research shows that TE cooling systems have advantages over conventional cooling devices, including compact in size, light in weight, high reliability, no mechanical moving parts, no working fluid, being powered by direct current, and easily switching between cooling and heating modes.

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Experimental study and performance analysis of a solar thermoelectric air conditioner with hot water supply

Cited by 69 publications

References 21 publications

Enhanced thermoelectric effect of cement composite by addition of metallic oxide nanopowders for energy harvesting in buildings

Enhanced thermoelectric effect of cement composite by addition of metallic oxide nanopowders for energy harvesting in buildings

Experimental investigation of thermoelectric cooling system with heat recovery

A comprehensive review of solar thermoelectric cooling systems

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