Experimental and parametric analysis of a thermoelectric refrigerator

Onoroh, Francis; Ogbonnaya, Mercy; Ezenwa, Obiora Nnaemeka; Odubiyi, Emmanuel Oluwafemi

doi:10.1504/ijisd.2020.106231

Cited by 5 publications

(5 citation statements)

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“…The result of Sujith et al [34] yielded a COP of 0.124, Gastelo-Roque and Morales-Acevedo [21] achieved a COP of 0.61, and Onoroh et al [28] got a COP of 0.34. A comparison of these COPs with the one in the present work indicates that the COP obtained in the present work (which is 0.70) falls within the range of the COP of semiconductor-based refrigerators.…”

Section: Calculation Of Coefficient Of Performancementioning

confidence: 99%

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A Semiconductor-Based Refrigeration System for Cooling of Water: Design, Construction, and Performance Tests

Oni¹,

Aliyu²,

Adaramola³

et al. 2023

PEET

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Convectional refrigeration is one of the causes of global warming as carbon dioxide is emitted from its refrigerant to the environment. Semiconductor-based refrigeration is one of the alternative technologies that can lower the carbon dioxide emissions to the atmosphere as it uses electron gas instead of a refrigerant as its working fluid. The present work aims to design and construct a semiconductor-based refrigerator and test its performance. The refrigerator was designed to cool 4×10 -3 m -3 of water from a temperature of 30℃ to 0℃. The tests performed on the refrigerator were retention time of the temperature of the water, change in the water temperature at different intervals of time, and the cooling rate of the water. The results of the tests indicated that the temperature of the water dropped from its initial value of 30℃ to 0℃ after 225 minutes, and maintained the temperature of 0℃ for 15 minutes. After the refrigerator was switched off, the temperature of 0℃ was retained for approximately 30 minutes, and then took 192 minutes to rise from 0℃ to its initial value of 30℃. The average cooling rate for the duration of 225 minutes was 0.133℃/min. The current work widens the studies on the use of alternative technologies for convectional refrigeration.

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Section: Calculation Of Coefficient Of Performancementioning

confidence: 99%

“…A semiconductor-based refrigerator was used by Onoroh et al [28] to reduce the temperature of the product that was put inside it, and the performance of the refrigerator was performed. It was reported that the refrigerator has a good performance.…”

Section: Introductionmentioning

confidence: 99%

A Semiconductor-Based Refrigeration System for Cooling of Water: Design, Construction, and Performance Tests

Oni¹,

Aliyu²,

Adaramola³

et al. 2023

PEET

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show abstract

“…Astrain et al [34] stated that relevant improvements can be made in thermoelectric refrigeration efficiency by the proper optimization of the heat exchangers. The optimal performance of a thermoelectric refrigerator would be obtained when the temperature gradient between the hot and cold sides of the thermoelectric module is kept to a minimum [35]. Ding et al [36], as well as Luo et al [37] explored the effect of total heat transfer surface area on the optimal performance of the thermoelectric refrigerators.…”

Section: Literature Reviewmentioning

confidence: 99%

“…Available literature positions widely analyze the coefficient of performance (COP) of thermoelectric refrigerators estimated on the basis of experimental studies results [7,35,38]. Fairuz Remeli et al [39] designed and built a mini thermoelectric Peltier cooler to validate the theoretical thermal resistance model.…”

Section: Literature Reviewmentioning

confidence: 99%

Improvement of Criteria for Assessing the Energy Efficiency of Thermoelectric Refrigerators Used in Supply Chains

Filin

Filina-Dawidowicz

2021

Energies

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Refrigerators play an important role in perishable goods supply chains and are expected to operate efficiently. Thermoelectric refrigerators need specific criteria for assessing their energy efficiency. The existing criteria do not take into account the insulation properties of a refrigerator cabinet, which results in a low credibility of the assessment of energy parameters of thermoelectric coolers. The aim of the research was to develop and approve a new universal criterion for assessing the energy efficiency of stationary thermoelectric refrigerators used in supply chains. It was proposed to replace the known criterion of specific power consumption with a new indicator Pk, that takes into account the overall thermal transfer coefficient of the refrigerator cabinet. Based on experimental studies, the approval of the proposed indicator was carried out on the example of a comparative analysis of four thermoelectric refrigerators from different manufacturers. The indicator application resulted in changes in ranking of the examined refrigerators. It was found that the proposed criterion allows us to assess the effectiveness of a thermoelectric cold source more adequately, including the electric power supply and temperature control system. The research results may constitute guidelines for the design and application of standards for assessing the effectiveness of thermoelectric refrigerators.

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“…Heatsink biasanya adalah tahap peralihan pada Proses pemindahan panas dimana panas mengalir ke dalam heatsink dan kemudian ditransfer ke media eksternal. Umumnya heatsink termasuk konveksi bebas, konveksi paksa dan cairan dingin, tergantung pada ukuran kulkas [8].…”

Section: E Heatsinkunclassified

Perancangan Sistem Pendingin Stayrofoam Air Conditionerportable Menggunakan Thermoelectric Cooler (Elemen Peltier)

Imaduddin

2021

CYCLOTRON

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Abstrak— Pada penelitian ini dihasilkan perancangan dan sistem pendingin ruangan, hasil pengujian akurasi (thermoelektrik cooler, dan hygrometer). Pada hasil pengujian thermoelektrik cooler hasil rata-rata peltier didapatkan suhu 8,5 oC, peltier kedua didapatkan rata-rata 8,6 oC, peltier ketiga didapatkan rata-rata 5 oC, peltier ke empat didapatkan rata-rata 4,8 oC, peltier kelima didpatkan rata-rata 4,6 oC, dan peltier terakhir didapatkan 4,1 oC. Dan untuk hasil pengujian menggunakan hygrometer pembacaan temperatur relatif antara sensor NTC dengan hygrometer linear dengan R2 0,8004, dimana R2 merupakan regresi dan dapat menunjukkan kelelitian pengukuran alat yang dibuat sebesar 80 %. Dari data-data yang telah dianalisa, secara umum sistem suhu pendingin ruangan styrofom menggunakan thermoelektrik cooler pada penelitian ini telah memenuhi syarat umum sebuah pengendali, dimana untuk variasi-variasi akan menghasilkan respon yang diinginkan dari sebauah sistem pendingin. Apabila ada gangguan dari luar dapat ditanggapi secara responsif dari sistem, dengan selalu berusaha mendekatkan suhu sesuai set point.

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Experimental and parametric analysis of a thermoelectric refrigerator

Cited by 5 publications

References 0 publications

A Semiconductor-Based Refrigeration System for Cooling of Water: Design, Construction, and Performance Tests

A Semiconductor-Based Refrigeration System for Cooling of Water: Design, Construction, and Performance Tests

Improvement of Criteria for Assessing the Energy Efficiency of Thermoelectric Refrigerators Used in Supply Chains

Perancangan Sistem Pendingin Stayrofoam Air Conditionerportable Menggunakan Thermoelectric Cooler (Elemen Peltier)

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