Numerical investigation of direct absorption evacuated tube solar collector using alumina nanofluid

Maryam Karami

Makale detayları

Numerical investigation of direct absorption evacuated tube solar collector using alumina nanofluid

Yazarlar:

Maryam Karami

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Thermodynamics and Statistical Physics

Dergi:

Journal of Thermal Engineering Vol.10 Issue 3, pp.562-571

Belge Tipi:

Makale

Yayın Tarihi:

5/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001317775

pISSN:

2148-7847

Anahtar kelimeler:

Özet:

 Direct absorption evacuated tube solar collectors are a new type of collector that has great potential to use in a solar system. In the present work, energy analysis of the direct absorption evacuated tube solar collectors employing Al2O3 nanoparticles is investigated numerically. A three-dimensional computational fluid dynamics simulation model is developed in ANSYS-Fluent software. The working fluids which are selected in this study are Al2O3 nanoparticles dispersed in water and EG. The effect of the two volume fractions 0.04 and 0.06 of the nanofluid is investigated on thermal performance of the DAETC. In addition, the temperature distribution of the system is examined based on different volume fractions of the nanofluids. The results show that the outlet temperature difference of 0.04 Al2O3EG is improved by 19.34 with respect to 0.04 Al2O3water and for 0.06 Al2O3EG is improved by 16.45 with respect to 0.06 Al2O3water nanofluid, respectively. The results also reveal that the collector efficiency of 0.04 Al2O3water, 0.06 Al2O3water, 0.04 Al2O3EG, and 0.06 Al2O3EG nanofluids are 69.77, 71.39, 66.68, and 69.43, respectively. The 0.06 Al2O3water and 0.06 Al2O3EG nanofluids have the highest collector efficiency and outlet temperature difference, respectively.

 Direct absorption evacuated tube solar collectors are a new type of collector that has great potential to use in a solar system. In the present work, energy analysis of the direct absorption evacuated tube solar collectors employing Al2O3 nanoparticles is investigated numerically. A three-dimensional computational fluid dynamics simulation model is developed in ANSYS-Fluent software. The working fluids which are selected in this study are Al2O3 nanoparticles dispersed in water and EG. The effect of the two volume fractions 0.04 and 0.06 of the nanofluid is investigated on thermal performance of the DAETC. In addition, the temperature distribution of the system is examined based on different volume fractions of the nanofluids. The results show that the outlet temperature difference of 0.04 Al2O3EG is improved by 19.34 with respect to 0.04 Al2O3water and for 0.06 Al2O3EG is improved by 16.45 with respect to 0.06 Al2O3water nanofluid, respectively. The results also reveal that the collector efficiency of 0.04 Al2O3water, 0.06 Al2O3water, 0.04 Al2O3EG, and 0.06 Al2O3EG nanofluids are 69.77, 71.39, 66.68, and 69.43, respectively. The 0.06 Al2O3water and 0.06 Al2O3EG nanofluids have the highest collector efficiency and outlet temperature difference, respectively.

 Direct absorption evacuated tube solar collectors are a new type of collector that has great potential to use in a solar system. In the present work, energy analysis of the direct absorption evacuated tube solar collectors employing Al2O3 nanoparticles is investigated numerically. A three-dimensional computational fluid dynamics simulation model is developed in ANSYS-Fluent software. The working fluids which are selected in this study are Al2O3 nanoparticles dispersed in water and EG. The effect of the two volume fractions 0.04 and 0.06 of the nanofluid is investigated on thermal performance of the DAETC. In addition, the temperature distribution of the system is examined based on different volume fractions of the nanofluids. The results show that the outlet temperature difference of 0.04 Al2O3EG is improved by 19.34 with respect to 0.04 Al2O3water and for 0.06 Al2O3EG is improved by 16.45 with respect to 0.06 Al2O3water nanofluid, respectively. The results also reveal that the collector efficiency of 0.04 Al2O3water, 0.06 Al2O3water, 0.04 Al2O3EG, and 0.06 Al2O3EG nanofluids are 69.77, 71.39, 66.68, and 69.43, respectively. The 0.06 Al2O3water and 0.06 Al2O3EG nanofluids have the highest collector efficiency and outlet temperature difference, respectively.

 Direct absorption evacuated tube solar collectors are a new type of collector that has great potential to use in a solar system. In the present work, energy analysis of the direct absorption evacuated tube solar collectors employing Al2O3 nanoparticles is investigated numerically. A three-dimensional computational fluid dynamics simulation model is developed in ANSYS-Fluent software. The working fluids which are selected in this study are Al2O3 nanoparticles dispersed in water and EG. The effect of the two volume fractions 0.04 and 0.06 of the nanofluid is investigated on thermal performance of the DAETC. In addition, the temperature distribution of the system is examined based on different volume fractions of the nanofluids. The results show that the outlet temperature difference of 0.04 Al2O3EG is improved by 19.34 with respect to 0.04 Al2O3water and for 0.06 Al2O3EG is improved by 16.45 with respect to 0.06 Al2O3water nanofluid, respectively. The results also reveal that the collector efficiency of 0.04 Al2O3water, 0.06 Al2O3water, 0.04 Al2O3EG, and 0.06 Al2O3EG nanofluids are 69.77, 71.39, 66.68, and 69.43, respectively. The 0.06 Al2O3water and 0.06 Al2O3EG nanofluids have the highest collector efficiency and outlet temperature difference, respectively.

Makale detayları

Numerical investigation of direct absorption evacuated tube solar collector using alumina nanofluid

Yazarlar:

Maryam Karami

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Thermodynamics and Statistical Physics

Dergi:

Journal of Thermal Engineering Vol.10 Issue 3, pp.562-571

Belge Tipi:

Makale

Yayın Tarihi:

5/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001317775

pISSN:

2148-7847

Evacuated Tube Direct Absorption Solar Collector

Nanofluid

Numerical Simulation

Solar Collector

Sayı

Makale detayları

Numerical investigation of direct absorption evacuated tube solar collector using alumina nanofluid

Yazarlar: Maryam Karami

Yayıncı: Yildiz Technical University

Ana Başlıklar: Thermodynamics and Statistical Physics

Dergi: Journal of Thermal Engineering Vol.10 Issue 3, pp.562-571

Belge Tipi: Makale

Yayın Tarihi: 5/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001317775

pISSN: 2148-7847

Evacuated Tube Direct Absorption Solar Collector

Nanofluid

Numerical Simulation

Solar Collector

Sayı

Yazarlar:

Maryam Karami

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Thermodynamics and Statistical Physics

Dergi:

Journal of Thermal Engineering Vol.10 Issue 3, pp.562-571

Belge Tipi:

Makale

Yayın Tarihi:

5/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001317775

pISSN:

2148-7847