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Performance comparisons of diffuser inlet and outlet positions on the temperature and velocity variations in a furnished office room

DOI: 10.1615/ICHMT.2015.THMT-15.1830
pages 811-814

F. Karasahin
Department of Mechanical Engineering, Gazi University, Eti Mah. Yukselis Sok. 5, 06570 Ankara, Turkey

Senol Baskaya
Department of Mechanical Engineering, Gazi University, Eti Mah. Yukselis Sok. 5, 06570 Ankara, Turkey

Tamer Calisir
Gazi University

Sinan Caliskan
Department of Mechanical Engineering, Hitit University, Cevre Yolu 8, 19030 Corum, Turkey


In this study, comfort conditions for conditioning the space of a furnished office room have been numerically investigated. An existing experimental space has turned into a numerical model. For three different diffuser locations the diffuser inlet velocity was varied between 1.0-2.0 m/s and temperature for summer and winter conditions was varied between 16-20°C and 25-35°C, respectively. Between the investigated cases, for summer conditions, the optimum comfort conditions for the cooling process were obtained for DL1 with 20°C supply air temperature, and 2m/s supply air velocity. For winter conditions, in the case of heating, optimum comfort conditions were obtained for DL3 with 30°C supply air temperature and 1m/s supply air velocity.

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