Duvardan Radyant Soğutma Sistemlerinde Soğutucu Akışkan Sıcaklığının Isıl Konfora Etkisinin İncelenmesi

Öz

Radyant sistemler geleneksel ısıtma ve soğutma sistemlerine göre daha iyi ısıl konfor şartları sağlamalarının yanında düşük enerji tüketimleriyle de ön plana çıkmaktadırlar. Radyant panel sistemlerinin enerji ve ekserji açısından gösterdikleri performanslar dünya çapında akademisyenlerin ilgisini çekmiştir. Bu çalışmada, duvardan radyant soğutma sisteminin ısıl konfora etkisi sayısal olarak incelenmiştir. Bu amaçla yapılan çalışmalarda radyant panellerin içerisinde bulunan soğutucu akışkan sıcaklığı sırasıyla 18°C, 20°C ve 22°C tanımlanarak sonuçlar PMV-PPD parametrelerine göre karşılaştırılmıştır. Tüm durumların ASHRAE 55 standardında belirtilen ısıl konfor şartlarını sağladığı, en iyi ısıl konfor değerine yakın durumun 20°C soğutucu akışkan sıcaklığında gerçekleştiği görülmüştür.

Anahtar Kelimeler

• Isıl konfor,PMV-PPD,radyant soğutma,HAD

Investigation of Coolant Temperature Effect on Thermal Comfort in Wall Mounted Radiant Cooling Systems

Öz

Radiant systems provide better thermal comfort conditions than traditional heating and cooling systems, as well as low energy consumption. The performance of radiant panel systems in terms of energy and exergy have attracted the attention of the academicians around the world. In this study, the effect of the wall mounted radiant cooling system on thermal comfort was investigated numerically. For this purpose, the coolant temperature inside the radiant panels was defined as 18°C, 20°C and 22°C respectively and the results were compared according to the PMV-PPD parameters. It has been found that all cases fulfilled the thermal comfort conditions specified in ASHRAE 55 standard and the best conditions were obtained at 20°C water temperature.

Anahtar Kelimeler

• Thermal comfort,PMV-PPD,radiant cooling,CFD

Kaynakça

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