Journals / Makine Teknolojileri Elektronik Dergisi (elektronik) / 2015 / Cilt: 12 - Sayı: 4

A Numerical Investigation of Air Flow in an Empty Chamber With Perforated V-Profile Diffuser Designed For Air Handling Units

Klima Santralleri için Tasarlan bir V-Profil Delikli Difüzörlü Boş Hücredeki Hava Akışının Sayısal Olarak İncelenmesi

Pages
71–83
DOI
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AI Summary & Key Takeaways

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

In this case, it is numerically investigated that both diffusion of air to the next unit and pressure loss caused by empty chamber with perforated V-profile diffuser for different peakangle, hole geometry and porosity.

📌 3 Key Takeaways

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Objective & Hypothesis:Cross-sectional area of air existing of fans used in air handling units is smaller than cross-sectional area of chambers which are located next to the fan such as heating/cooling coils, silencer (muffler), filter or heat recovery elements.
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Key Findings & Data:Emptychambers with perforated V-profile diffuser is used to diffuse from small cross-sectional area to large cross sectional area.
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Conclusion & Impact:In this case, it is numerically investigated that both diffusion of air to the next unit and pressure loss caused by empty chamber with perforated V-profile diffuser for different peakangle, hole geometry and porosity.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Cross-sectional area of air existing of fans used in air handling units is smaller than cross-sectional area of chambers which are located next to the fan such as heating/cooling coils, silencer (muffler), filter or heat recovery elements. To make the air handling unit work efficiently, it is required that the air is blown through fan diffuses with as low as possible pressure loss and homogen velocity distribution. Emptychambers with perforated V-profile diffuser is used to diffuse from small cross-sectional area to large cross sectional area. In this study, an empty chamber with perforated diffuser whose geometry is square based truncated pyramid is used. In this case, it is numerically investigated that both diffusion of air to the next unit and pressure loss caused by empty chamber with perforated V-profile diffuser for different peakangle, hole geometry and porosity.

Özet

Klima santrallerinde kullanılan fanların çıkış ağızlarının kesit alanı, fandan sonra gelen ısıtma/soğutma bataryaları, susturucu, filtre, karışım odası veya ısı geri kazanım vb. hücrelerin kesit alanından küçüktür. Klima santralinin verimli bir şekilde çalışabilmesi için, fanın üflediği havanın bir sonraki hücreye mümkün olan en düşük basınç düşüşü ve homojen hız dağılımı ile yayılması gerekir. Küçük bir kesit alanından çıkan havayı daha büyük bir kesit alanına yaymak için delikli difüzörlü boş hücreler kullanılmaktadır. Bu çalışmada, V-profilli delikli difüzörlü boş hücre kullanılmıştır. Bu durumda havanın boş hücreden sonraki üniteye yayılma durumu ve delikli difüzörlü boş hücrenin sebep olduğu basınç düşüşü farklı tepe açıları, delik geometrisi ve gözeneklilik için sayısal olarak araştırılmıştır.

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Cite This Article

ŞAHİN, H. E., KAMER, M. S., TAÇGÜN, E., ERDOĞAN, A., SÖNMEZ, K., KAYA, A., AKSOY, İ. G., CANBAZOĞLU, S. (2015). A Numerical Investigation of Air Flow in an Empty Chamber With Perforated V-Profile Diffuser Designed For Air Handling Units. Makine Teknolojileri Elektronik Dergisi (elektronik), Cilt: 12 - Sayı: 4, 71–83. https://ajindex.com/articles/281993

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References (1)

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