EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER

PARLAK, NEZAKET; GÜR, MESUT; ENGİN, Tahsin; KĞÇÜK, Hasan

EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER

Nezaket PARLAK, (Sakarya Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği Bölümü, Sakarya, Türkiye)

Mesut GÜR, (İstanbul Teknik Üniversitesi, Makine Fakültesi, Makine Mühendisliği Bölümü, İstanbul, Türkiye)

Tahsin ENGİN, (Sakarya Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği Bölümü, Sakarya, Türkiye)

Hasan KĞÇÜK (Sakarya Üniversitesi, Mühendislik Fakültesi, Makina Mühendisliği Bölümü, Sakarya, Türkiye)

Journal of Thermal Engineering

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Yıl: 2017 Cilt: 3 Sayı: 2 Sayfa Aralığı: 1181 - 1195 Metin Dili: İngilizce İndeks Tarihi: 29-07-2022

EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER

Öz:

The single phase fluid flow and heat transfer characteristic has been investigated experimentally. Experiments were conducted to cover transition zone for the Reynolds numbers ranging from 100 to 4800 by fused silica and stainless steel microtubes having diameters of 103-180 µm. The applicability of the Logarithmic Mean Temperature Difference (LMTD) method was revealed and an experimental method was developed to calculate the heat transfer coefficient. Moreover the scaling effects in micro scale such as axial conduction, viscous heating and entrance effects were discussed. The heat transfer coefficients were compared with data obtained by the correlations available in the literature in the study. The Nusselt numbers of microtube flows do not accord with the conventional results when the Reynolds number was lower than 1000. After that, the Nusselt number approaches the conventional theory prediction. On the aspect of fluid characteristics, the friction factor was well predicted with conventional theory and the conventional friction prediction was valid for water flow through microtube with a relative surface roughness less than about 4 %

Anahtar Kelime:

Konular: Fizik, Uygulamalı

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

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APA	PARLAK N, GÜR M, ENGİN T, KĞÇÜK H (2017). EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. , 1181 - 1195.
Chicago	PARLAK NEZAKET,GÜR MESUT,ENGİN Tahsin,KĞÇÜK Hasan EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. (2017): 1181 - 1195.
MLA	PARLAK NEZAKET,GÜR MESUT,ENGİN Tahsin,KĞÇÜK Hasan EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. , 2017, ss.1181 - 1195.
AMA	PARLAK N,GÜR M,ENGİN T,KĞÇÜK H EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. . 2017; 1181 - 1195.
Vancouver	PARLAK N,GÜR M,ENGİN T,KĞÇÜK H EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. . 2017; 1181 - 1195.
IEEE	PARLAK N,GÜR M,ENGİN T,KĞÇÜK H "EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER." , ss.1181 - 1195, 2017.
ISNAD	PARLAK, NEZAKET vd. "EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER". (2017), 1181-1195.

APA	PARLAK N, GÜR M, ENGİN T, KĞÇÜK H (2017). EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. Journal of Thermal Engineering, 3(2), 1181 - 1195.
Chicago	PARLAK NEZAKET,GÜR MESUT,ENGİN Tahsin,KĞÇÜK Hasan EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. Journal of Thermal Engineering 3, no.2 (2017): 1181 - 1195.
MLA	PARLAK NEZAKET,GÜR MESUT,ENGİN Tahsin,KĞÇÜK Hasan EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. Journal of Thermal Engineering, vol.3, no.2, 2017, ss.1181 - 1195.
AMA	PARLAK N,GÜR M,ENGİN T,KĞÇÜK H EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. Journal of Thermal Engineering. 2017; 3(2): 1181 - 1195.
Vancouver	PARLAK N,GÜR M,ENGİN T,KĞÇÜK H EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER. Journal of Thermal Engineering. 2017; 3(2): 1181 - 1195.
IEEE	PARLAK N,GÜR M,ENGİN T,KĞÇÜK H "EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER." Journal of Thermal Engineering, 3, ss.1181 - 1195, 2017.
ISNAD	PARLAK, NEZAKET vd. "EXPERIMENTAL VALIDATION OF LMTD METHOD FOR MICROSCALE HEAT TRANSFER". Journal of Thermal Engineering 3/2 (2017), 1181-1195.