Numerical investigation to augmentation of heat transfer in solar air heater with arc shape ribs on absorber plate

Karrar S. Hasan

Makale detayları

Numerical investigation to augmentation of heat transfer in solar air heater with arc shape ribs on absorber plate

Yazarlar:

Karrar S. Hasan

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Fluid Mechanics and Thermal Engineering (Other)

Dergi:

Journal of Thermal Engineering Vol.11 Issue 1, pp.25-39

Belge Tipi:

Makale

Yayın Tarihi:

1/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343567

pISSN:

2148-7847

Anahtar kelimeler:

Özet:

 Using numerical methods, this paper investigates the heat transmission and friction factor of a SAH duct that has been intentionally roughened. The absorber plate of the duct is equipped with an arc-shaped structure that has three distinct angles of attack. This structure is Installed on the peak walls from the tray. The roughness parameters of this structure include a respective roughness factor pH beginning from from 1.667 to 6.667, a respective rough height eH of 0.271, an arc angle α beginning from from 30 to 60, and a Re beginning from from 3000 to 15000. It has been determined that the efficiency of roughened SAH ducts surpasses that of smooth ducts within the range of roughness values examined. The numerical analysis indicates that the highest increase in Nu and f occurred at specific values: a respective roughness factor pH of 3.33, a respective roughness height eH of 0.271, an arc angle α of 60, and a Reynolds number of 15000. The test runs for the roughened duct involved collecting data on various combinations of roughness parameters. The highest values observed were Nu  215 and Nu ratio  7.21. When compared to the conduit that is smooth had most possible value of f  2.5 and ffs  3.39. The thermal performance factor is 3.88.

 Using numerical methods, this paper investigates the heat transmission and friction factor of a SAH duct that has been intentionally roughened. The absorber plate of the duct is equipped with an arc-shaped structure that has three distinct angles of attack. This structure is Installed on the peak walls from the tray. The roughness parameters of this structure include a respective roughness factor pH beginning from from 1.667 to 6.667, a respective rough height eH of 0.271, an arc angle α beginning from from 30 to 60, and a Re beginning from from 3000 to 15000. It has been determined that the efficiency of roughened SAH ducts surpasses that of smooth ducts within the range of roughness values examined. The numerical analysis indicates that the highest increase in Nu and f occurred at specific values: a respective roughness factor pH of 3.33, a respective roughness height eH of 0.271, an arc angle α of 60, and a Reynolds number of 15000. The test runs for the roughened duct involved collecting data on various combinations of roughness parameters. The highest values observed were Nu  215 and Nu ratio  7.21. When compared to the conduit that is smooth had most possible value of f  2.5 and ffs  3.39. The thermal performance factor is 3.88.

 Using numerical methods, this paper investigates the heat transmission and friction factor of a SAH duct that has been intentionally roughened. The absorber plate of the duct is equipped with an arc-shaped structure that has three distinct angles of attack. This structure is Installed on the peak walls from the tray. The roughness parameters of this structure include a respective roughness factor pH beginning from from 1.667 to 6.667, a respective rough height eH of 0.271, an arc angle α beginning from from 30 to 60, and a Re beginning from from 3000 to 15000. It has been determined that the efficiency of roughened SAH ducts surpasses that of smooth ducts within the range of roughness values examined. The numerical analysis indicates that the highest increase in Nu and f occurred at specific values: a respective roughness factor pH of 3.33, a respective roughness height eH of 0.271, an arc angle α of 60, and a Reynolds number of 15000. The test runs for the roughened duct involved collecting data on various combinations of roughness parameters. The highest values observed were Nu  215 and Nu ratio  7.21. When compared to the conduit that is smooth had most possible value of f  2.5 and ffs  3.39. The thermal performance factor is 3.88.

 Using numerical methods, this paper investigates the heat transmission and friction factor of a SAH duct that has been intentionally roughened. The absorber plate of the duct is equipped with an arc-shaped structure that has three distinct angles of attack. This structure is Installed on the peak walls from the tray. The roughness parameters of this structure include a respective roughness factor pH beginning from from 1.667 to 6.667, a respective rough height eH of 0.271, an arc angle α beginning from from 30 to 60, and a Re beginning from from 3000 to 15000. It has been determined that the efficiency of roughened SAH ducts surpasses that of smooth ducts within the range of roughness values examined. The numerical analysis indicates that the highest increase in Nu and f occurred at specific values: a respective roughness factor pH of 3.33, a respective roughness height eH of 0.271, an arc angle α of 60, and a Reynolds number of 15000. The test runs for the roughened duct involved collecting data on various combinations of roughness parameters. The highest values observed were Nu  215 and Nu ratio  7.21. When compared to the conduit that is smooth had most possible value of f  2.5 and ffs  3.39. The thermal performance factor is 3.88.

Makale detayları

Numerical investigation to augmentation of heat transfer in solar air heater with arc shape ribs on absorber plate

Yazarlar:

Karrar S. Hasan

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Fluid Mechanics and Thermal Engineering (Other)

Dergi:

Journal of Thermal Engineering Vol.11 Issue 1, pp.25-39

Belge Tipi:

Makale

Yayın Tarihi:

1/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343567

pISSN:

2148-7847

Artificial Roughness

CFD

Fluid Flow

Heat Transfer

Solar Air Heater

Solar Energy

Sayı

Makale detayları

Numerical investigation to augmentation of heat transfer in solar air heater with arc shape ribs on absorber plate

Yazarlar: Karrar S. Hasan

Yayıncı: Yildiz Technical University

Ana Başlıklar: Fluid Mechanics and Thermal Engineering (Other)

Dergi: Journal of Thermal Engineering Vol.11 Issue 1, pp.25-39

Belge Tipi: Makale

Yayın Tarihi: 1/2025

Belge Dili: İngilizce

Document ID (Org No.): 2001343567

pISSN: 2148-7847

Artificial Roughness

CFD

Fluid Flow

Heat Transfer

Solar Air Heater

Solar Energy

Sayı

Yazarlar:

Karrar S. Hasan

Yayıncı:

Yildiz Technical University

Ana Başlıklar:

Fluid Mechanics and Thermal Engineering (Other)

Dergi:

Journal of Thermal Engineering Vol.11 Issue 1, pp.25-39

Belge Tipi:

Makale

Yayın Tarihi:

1/2025

Belge Dili:

İngilizce

Document ID (Org No.):

2001343567

pISSN:

2148-7847