Experimental Investigation of a Small-Scale Parabolic Trough Concentrated Solar Power ‎Systems

Ismael Ehtiwesh

Makale detayları

Experimental Investigation of a Small-Scale Parabolic Trough Concentrated Solar Power ‎Systems

Yazarlar:

Ismael Ehtiwesh

Yayıncı:

Gazi University

Ana Başlıklar:

Solar Energy Systems

Dergi:

Gazi University Journal of Science Vol.37 Issue 3, pp.1341-1357

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001319746

pISSN:

2147-1762

Anahtar kelimeler:

Özet:

 Large-scale systems have a lower levelized cost of electricity than small-scale concentrated solar power systems. Thus, the purpose of the present study is to evaluate the potential of using standalone small-scale concentrated solar power collectors in order to generate process heat at a moderate temperature, which directly utilizes thermal energy without the need to generate electricity. A parabolic trough collector 3.6m2 was designed and manufactured, including a dual-axis solar tracking system with and without an insulating function. An insulating cavity was incorporated to minimize the heat losses collected by the absorbed tube. The experiments were carried out during a time of high winds and unfavorable weather in Sabratha City. The findings of the experiments demonstrated that the produced temperature and the collected heat energy progressively increase until they reach their maximum value, and then gradually decrease. The maximum water temperature was 96ºC at a flow rate of 0.5Lmin, and the highest amount of heat energy was 550Wm². Wind speed showed an important impact on the produced temperature; therefore, various comparative experiments were carried out in the same climate condition; the experiment with the insulating function presented the least heat loss, and it takes a higher edge of 11 in terms of efficiency. In addition, the water temperature rose to 120C where steam was generated at a zero flow rate, while the oil reached 194ºC. In addition, a mathematical model was also implemented to theoretically study energy balance; with little expected discrepancy, its predictions and the experimental results agreed. In conclusion, the results presented reasonable markers of interest despite the poor environmental conditions during the experiments.

 Large-scale systems have a lower levelized cost of electricity than small-scale concentrated solar power systems. Thus, the purpose of the present study is to evaluate the potential of using standalone small-scale concentrated solar power collectors in order to generate process heat at a moderate temperature, which directly utilizes thermal energy without the need to generate electricity. A parabolic trough collector 3.6m2 was designed and manufactured, including a dual-axis solar tracking system with and without an insulating function. An insulating cavity was incorporated to minimize the heat losses collected by the absorbed tube. The experiments were carried out during a time of high winds and unfavorable weather in Sabratha City. The findings of the experiments demonstrated that the produced temperature and the collected heat energy progressively increase until they reach their maximum value, and then gradually decrease. The maximum water temperature was 96ºC at a flow rate of 0.5Lmin, and the highest amount of heat energy was 550Wm². Wind speed showed an important impact on the produced temperature; therefore, various comparative experiments were carried out in the same climate condition; the experiment with the insulating function presented the least heat loss, and it takes a higher edge of 11 in terms of efficiency. In addition, the water temperature rose to 120C where steam was generated at a zero flow rate, while the oil reached 194ºC. In addition, a mathematical model was also implemented to theoretically study energy balance; with little expected discrepancy, its predictions and the experimental results agreed. In conclusion, the results presented reasonable markers of interest despite the poor environmental conditions during the experiments.

 Large-scale systems have a lower levelized cost of electricity than small-scale concentrated solar power systems. Thus, the purpose of the present study is to evaluate the potential of using standalone small-scale concentrated solar power collectors in order to generate process heat at a moderate temperature, which directly utilizes thermal energy without the need to generate electricity. A parabolic trough collector 3.6m2 was designed and manufactured, including a dual-axis solar tracking system with and without an insulating function. An insulating cavity was incorporated to minimize the heat losses collected by the absorbed tube. The experiments were carried out during a time of high winds and unfavorable weather in Sabratha City. The findings of the experiments demonstrated that the produced temperature and the collected heat energy progressively increase until they reach their maximum value, and then gradually decrease. The maximum water temperature was 96ºC at a flow rate of 0.5Lmin, and the highest amount of heat energy was 550Wm². Wind speed showed an important impact on the produced temperature; therefore, various comparative experiments were carried out in the same climate condition; the experiment with the insulating function presented the least heat loss, and it takes a higher edge of 11 in terms of efficiency. In addition, the water temperature rose to 120C where steam was generated at a zero flow rate, while the oil reached 194ºC. In addition, a mathematical model was also implemented to theoretically study energy balance; with little expected discrepancy, its predictions and the experimental results agreed. In conclusion, the results presented reasonable markers of interest despite the poor environmental conditions during the experiments.

 Large-scale systems have a lower levelized cost of electricity than small-scale concentrated solar power systems. Thus, the purpose of the present study is to evaluate the potential of using standalone small-scale concentrated solar power collectors in order to generate process heat at a moderate temperature, which directly utilizes thermal energy without the need to generate electricity. A parabolic trough collector 3.6m2 was designed and manufactured, including a dual-axis solar tracking system with and without an insulating function. An insulating cavity was incorporated to minimize the heat losses collected by the absorbed tube. The experiments were carried out during a time of high winds and unfavorable weather in Sabratha City. The findings of the experiments demonstrated that the produced temperature and the collected heat energy progressively increase until they reach their maximum value, and then gradually decrease. The maximum water temperature was 96ºC at a flow rate of 0.5Lmin, and the highest amount of heat energy was 550Wm². Wind speed showed an important impact on the produced temperature; therefore, various comparative experiments were carried out in the same climate condition; the experiment with the insulating function presented the least heat loss, and it takes a higher edge of 11 in terms of efficiency. In addition, the water temperature rose to 120C where steam was generated at a zero flow rate, while the oil reached 194ºC. In addition, a mathematical model was also implemented to theoretically study energy balance; with little expected discrepancy, its predictions and the experimental results agreed. In conclusion, the results presented reasonable markers of interest despite the poor environmental conditions during the experiments.

Makale detayları

Experimental Investigation of a Small-Scale Parabolic Trough Concentrated Solar Power ‎Systems

Yazarlar:

Ismael Ehtiwesh

Yayıncı:

Gazi University

Ana Başlıklar:

Solar Energy Systems

Dergi:

Gazi University Journal of Science Vol.37 Issue 3, pp.1341-1357

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001319746

pISSN:

2147-1762

Concentrated solar power

Small-scale power generation

Parabolic trough

Solar tracking

Sayı

Makale detayları

Experimental Investigation of a Small-Scale Parabolic Trough Concentrated Solar Power ‎Systems

Yazarlar: Ismael Ehtiwesh

Yayıncı: Gazi University

Ana Başlıklar: Solar Energy Systems

Dergi: Gazi University Journal of Science Vol.37 Issue 3, pp.1341-1357

Belge Tipi: Makale

Yayın Tarihi: 1/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001319746

pISSN: 2147-1762

Concentrated solar power

Small-scale power generation

Parabolic trough

Solar tracking

Sayı

Yazarlar:

Ismael Ehtiwesh

Yayıncı:

Gazi University

Ana Başlıklar:

Solar Energy Systems

Dergi:

Gazi University Journal of Science Vol.37 Issue 3, pp.1341-1357

Belge Tipi:

Makale

Yayın Tarihi:

1/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001319746

pISSN:

2147-1762