Radyant Panel Konumlarının ve Su Sıcaklığının Termal Konfor Üzerindeki Etkisinin Araştırılması

Öz

Dünyadaki enerji tüketimi ve çevre kirliliği gün geçtikçe artmaktadır. Enerjinin verimli kullanımı için, akademisyenler ve bilim adamları farklı modeller geliştirmiştir. Bu çalışmalardan biri yüksek sıcaklıkta soğutma sistemleridir. Radyant panel sistemleri, enerji ve ekserji açısından performansları ile yüksek sıcaklık soğutma sistemlerine örnektir. Bu çalışmada, düşük ekserji duvar tipi ve tavan radyant soğutma sistemlerinin ısıl konfor üzerindeki etkisi sayısal olarak incelenmiştir. Sayısal sonuçlar literatürdeki deneysel sonuçlarla doğrulanmıştır. Radyant panellerin içerisindeki su sıcaklığı sırasıyla 20 °C, 22 °C ve 24 °C olarak tanımlanmış ve sonuçlar PMV-PPD parametrelerine göre karşılaştırılmıştır. Altı farklı koşul araştırılmış ve sonuçlar en iyi ısıl konforun 20 °C su sıcaklığı ve tavan soğutma koşuluyla sağlandığını göstermiştir.

Anahtar Kelimeler

• Isıl konfor
• doğal taşınım
• PMV-PPD
• tavan radyant soğutma
• HAD

Investigation of The Effect of Radiant Panel Positions and Water Temperature on Thermal Comfort

Öz

Energy consumption and environmental pollution in the world are increasing day by day. For efficient use of energy, academicians and scientists have developed different models. One of these studies is high temperature cooling systems. Radiant panel systems are examples of high-temperature cooling systems with their performance. In this study, the effect of wall mounted and ceiling radiant cooling systems on thermal comfort is investigated numerically. Numerical results have been compared with the experimental data obtained from the literature and good agreement has been reached. The water temperature inside the radiant panels was defined as 20°C, 22°C and 24°C, respectively and the results were compared according to the PMV (Predicted Mean Vote) – PPD (Predicted Percentage of Dissatisfied) parameters. Six different conditions were investigated and the results show that the best thermal comfort is provided by 20°C of water temperature and the radiant ceiling condition.

Anahtar Kelimeler

• Thermal comfort
• natural convection
• PMV-PPD
• radiant ceiling cooling
• CFD

Kaynakça

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