Journals / Tesisat Mühendisliği / 2021 / Cilt: 2021 - Sayı: 184

Theoretical Modeling of a Solar Collector Used with Nanofluid and, Energy and Exergy Analysis in Different Working Conditions

Nanoakışkan Kullanılan Güneş Kolektörünün Teorik Modellenmesi ve Farklı Çalışma Koşullarındaki Enerji ve Ekserji Analizi

Pages
21–28
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

As a result of the theoretical analysis, it has been determined that adding nanoparticles to water, which is the main heat transfer fluid, decreases the thermal efficiency and entropy generation while increasing the exergy efficiency.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the theoretical modeling of the solar collector that enables us to generate thermal energy from the sun has been made.
📊
Key Findings & Data:Different nanofluids were obtained by adding nanoparticles (Cu, CuO, Al2 O3 , TiO2 , SiO2 ) in different concentration ratios to the water used as the main heat transfer fluid in the solar collector.
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Conclusion & Impact:As a result of the theoretical analysis, it has been determined that adding nanoparticles to water, which is the main heat transfer fluid, decreases the thermal efficiency and entropy generation while increasing the exergy efficiency.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, the theoretical modeling of the solar collector that enables us to generate thermal energy from the sun has been made. Different nanofluids were obtained by adding nanoparticles (Cu, CuO, Al2 O3 , TiO2 , SiO2 ) in different concentration ratios to the water used as the main heat transfer fluid in the solar collector. The effects of using these nanofluids at different concentration ratios and different flow rates in solar collectors were investigated on the thermal and exergetic performance of the solar collector. With the use of nanofluid with 0.048 kg/s mass flow rate and Cu nanoparticle at a concentration of 0.04, it was determined that there was a decrease of 1.65% in the collector thermal efficiency and an increase of 1.59% in the exergy efficiency compared to the use of water as the heat transfer fluid. As a result of the theoretical analysis, it has been determined that adding nanoparticles to water, which is the main heat transfer fluid, decreases the thermal efficiency and entropy generation while increasing the exergy efficiency.

Özet

Bu çalışmada güneşten ısıl enerji üretmemizi sağlayan güneş kolektörünün teorikmodellemesi yapılmıştır. Güneş kolektöründe temel ısı transfer akışkanı olarak kullanılan suya farklı konsantrasyon oranlarında nanopartiküller (Cu, CuO, Al2O3,TiO2, SiO2) eklenerek farklı nanoakışkanlar elde edilmiştir. Bu nanoakışkanlarınfarklı konsantrasyon oranlarında ve farklı debilerde güneş kolektörü içerisindekullanılmasının güneş kolektörünün ısıl ve ekserjetik performansına olan etkileriincelenmiştir. 0,048 kg/s kütlesel debiye ve 0,04 konsantrasyon oranın da Cu nanopartiküle sahip nanoakışkanın kullanılması ile ısı transfer akışkanı olarak suyunkullanıldığı duruma göre kolektör ısıl veriminde %1,65 oranında azalma, ekserjiveriminde ise %1,59 oranında artış olduğu tespit edilmiştir. Yapılan teorik analizlersonucunda, temel ısı transferi akışkanı olan suya nanopartikül eklenmesinin ısılverimi ve entropi üretimini azaltırken ekserji verimini arttırdığı tespit edilmiştir.

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Cite This Article

KIRTEPE, E., GÜNGÖR, A. (2021). Theoretical Modeling of a Solar Collector Used with Nanofluid and, Energy and Exergy Analysis in Different Working Conditions. Tesisat Mühendisliği, Cilt: 2021 - Sayı: 184, 21–28. https://ajindex.com/articles/364937

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