Year 2020, Volume 40 , Issue 2, Pages 349 - 358 2020-10-31

EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER EFFECTS OF MECHANICAL AGITATION IN POOL BOILING
HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ

Huri FURKAN [1] , Fatma ŞAHİN [2] , Erdem ALIÇ [3] , Ahmet KAYA [4]


In this study, the effect of mechanical agitation, which is one of the methods of improving the heat transfer in pool boiling, on the heat transfer coefficient has been investigated experimentally. Pure water has been used as the test fluid. In the experiments, a 100 mm diameter axial fan blade operating at different rotational speeds have been used to create mechanical agitation in the pool. In the experiments, 100 mm long, 20 mm diameter cylindrical steel heater has been used. Experiments have been carried out in nucleate boiling regime region (for water ∆T 5-30 ºC), where the highest heat transfer coefficients have been obtained in pool boiling. Experiments have been carried out at 9 different heating power (17, 23, 29, 38, 47, 58, 70, 83 and 94 kW/m2) and at 5 different mechanical agitator speeds (0, 55, 139, 205 and 212 rpm). It has been determined that the heat transfer coefficient (HTC) increases with the increase of the heater power and the speed of the mechanical agitator. Increasing the heater power from 17 kW / m2 to 94 kW / m2 (the mechanical agitator has been kept constant at 55 rpm), it has been determined that the heat transfer coefficient increased by approximately 10%. It has been determined that the HTC improved by 190% by increasing the number of revolutions from 0 rpm to 212 rpm at low heater power (at 17 kW/m2).
Bu çalışmada, havuz kaynamada ısı transferini iyileştirme metotlarından biri olan mekanik çalkalamanın ısı transfer katsayısına etkisi deneysel olarak araştırılmıştır. Deneysel çalışma kapsamında bir deney düzeneği kurulmuştur. Deney akışkanı olarak saf su kullanılmıştır. Deneylerde havuz içerisinde mekanik çalkantı oluşturmak amacıyla farklı devir hızlarında çalışan bir adet 100 mm çapında aksiyel fan kanadı kullanılmıştır. Deneylerde 100 mm uzunluğunda 20 mm çapında silindirik çelik ısıtıcı kullanılmıştır. Deneyler havuz kaynamada en yüksek ısı transfer katsayılarının elde edildiği kabarcıklı kaynama bölgesinde (su için ∆T 5-30 ºC) gerçekleştirilmiştir. Deneyler 9 farklı ısıtıcı gücünde (17, 23, 29, 38, 47, 58, 70, 83 ve 94 kW/m2) ve 5 farklı mekanik karıştırıcı devrinde (0, 55, 139, 205 ve 212 d/d) gerçekleştirilmiştir. Isı transferi katsayısının, ısıtıcı gücün ve mekanik karıştırıcının devir sayısının artmasıyla arttığı tespit edilmiştir. Isıtıcı gücün 17 kW/m2 den 94 kW/m2 ye yükseltilmesiyle (mekanik karıştırıcının 55 d/d da sabit tutulmuştur), ısı transferi katsayının yaklaşık %10 oranında arttığı belirlenmiştir. Düşük ısıtıcı gücünde (17 kW/m2’de), devir sayısının 0 d/d’dan 212 d/d’ya çıkartılmasıyla, ısı transferi katsayısının %190 oranında iyileştiği tespit edilmiştir.
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Primary Language tr
Subjects Engineering, Mechanical
Journal Section Research Article
Authors

Orcid: 0000-0002-7567-9682
Author: Huri FURKAN
Institution: KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNİVERSİTESİ
Country: Turkey


Orcid: 0000-0002-9872-823X
Author: Fatma ŞAHİN
Institution: KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNİVERSİTESİ
Country: Turkey


Orcid: 0000-0002-2852-0353
Author: Erdem ALIÇ
Institution: KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNİVERSİTESİ
Country: Turkey


Orcid: 0000-0001-9197-3542
Author: Ahmet KAYA
Institution: KAHRAMANMARAŞ SÜTÇÜ İMAM ÜNİVERSİTESİ
Country: Turkey


Dates

Publication Date : October 31, 2020

Bibtex @research article { isibted817081, journal = {Isı Bilimi ve Tekniği Dergisi}, issn = {1300-3615}, address = {}, publisher = {Türk Isı Bilimi ve Tekniği Derneği}, year = {2020}, volume = {40}, pages = {349 - 358}, doi = {10.47480/isibted.817081}, title = {HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ}, key = {cite}, author = {Furkan, Huri and Şahin, Fatma and Alıç, Erdem and Kaya, Ahmet} }
APA Furkan, H , Şahin, F , Alıç, E , Kaya, A . (2020). HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ . Isı Bilimi ve Tekniği Dergisi , 40 (2) , 349-358 . DOI: 10.47480/isibted.817081
MLA Furkan, H , Şahin, F , Alıç, E , Kaya, A . "HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ" . Isı Bilimi ve Tekniği Dergisi 40 (2020 ): 349-358 <https://dergipark.org.tr/en/pub/isibted/issue/57550/817081>
Chicago Furkan, H , Şahin, F , Alıç, E , Kaya, A . "HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ". Isı Bilimi ve Tekniği Dergisi 40 (2020 ): 349-358
RIS TY - JOUR T1 - HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ AU - Huri Furkan , Fatma Şahin , Erdem Alıç , Ahmet Kaya Y1 - 2020 PY - 2020 N1 - doi: 10.47480/isibted.817081 DO - 10.47480/isibted.817081 T2 - Isı Bilimi ve Tekniği Dergisi JF - Journal JO - JOR SP - 349 EP - 358 VL - 40 IS - 2 SN - 1300-3615- M3 - doi: 10.47480/isibted.817081 UR - https://doi.org/10.47480/isibted.817081 Y2 - 2020 ER -
EndNote %0 Isı Bilimi ve Tekniği Dergisi HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ %A Huri Furkan , Fatma Şahin , Erdem Alıç , Ahmet Kaya %T HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ %D 2020 %J Isı Bilimi ve Tekniği Dergisi %P 1300-3615- %V 40 %N 2 %R doi: 10.47480/isibted.817081 %U 10.47480/isibted.817081
ISNAD Furkan, Huri , Şahin, Fatma , Alıç, Erdem , Kaya, Ahmet . "HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ". Isı Bilimi ve Tekniği Dergisi 40 / 2 (October 2020): 349-358 . https://doi.org/10.47480/isibted.817081
AMA Furkan H , Şahin F , Alıç E , Kaya A . HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ. Isı Bilimi ve Tekniği Dergisi. 2020; 40(2): 349-358.
Vancouver Furkan H , Şahin F , Alıç E , Kaya A . HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ. Isı Bilimi ve Tekniği Dergisi. 2020; 40(2): 349-358.
IEEE H. Furkan , F. Şahin , E. Alıç and A. Kaya , "HAVUZ KAYNAMA ISI TRANSFERİNDE MEKANİK ÇALKALAMA ETKİLERİNİN DENEYSEL İNCELENMESİ", Isı Bilimi ve Tekniği Dergisi, vol. 40, no. 2, pp. 349-358, Oct. 2020, doi:10.47480/isibted.817081