Выходит 18 номеров в год
ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561
Indexed in
HEAT TRANSFER IN AN OVAL TUBE HEAT EXCHANGER WITH DIFFERENT KINDS OF LONGITUDINAL VORTEX GENERATORS
Краткое описание
A numerical study was performed on a plate fin and oval tube heat exchanger with different kinds of longitudinal vortex generators (LVG). The influence of LVG on heat transfer and pressure drop is investigated, and eight different LVG geometries are compared: delta-type, rectangular, spoon-type, and five ellipse-shaped cases. The numerical study involves a three-dimensional steady and laminar flow and conjugate heat transfer. The results show that one longitudinal vortex (LV) is generated for each LVG for all cases except for the spoon-type case, where two LVs are generated. The results of experimental and numerical investigations were compared validation. The highest increase in heat transfer corresponds to the Delta case (14% for Redh = 720), followed by the Ellipse 1 (13%), Ellipse 2, Ellipse 5 and Rectangular (11%), Ellipse 3 (8%), and Ellipse 4 and Spoon (7%) cases. The highest increase in the pressure drop corresponds to the Ellipse 1 case (20% for Redh = 720), followed by the Delta (19%), Ellipse 2 (15%), Ellipse 5 (14%), Rectangular (13%), Ellipse 3 (11%), and Ellipse 4 and Spoon (9%) cases. The highest heat transfer rate, with the same flow power consumption, corresponds to the Delta, Rectangular, Ellipse 1, 2, and 5 cases.
-
Awais Muhammad, Bhuiyan Arafat A., Recent advancements in impedance of fouling resistance and particulate depositions in heat exchangers, International Journal of Heat and Mass Transfer, 141, 2019. Crossref
-
Carpio José, Valencia Alvaro, Heat transfer enhancement through longitudinal vortex generators in compact heat exchangers with flat tubes, International Communications in Heat and Mass Transfer, 120, 2021. Crossref
-
Tang Linghong, Du Xueping, Pan Jie, Sundén Bengt, Air inlet angle influence on the air-side heat transfer and flow friction characteristics of a finned oval tube heat exchanger, International Journal of Heat and Mass Transfer, 145, 2019. Crossref
-
Wei Hongyu, Cong Tao , Jiang Chen , Zhou Wenxue , Bai Bofeng, HEAT TRANSFER ENHANCEMENT OF A PARTIALLY SERRATED TWISTED FINNED TUBE WITH NON-GROOVING ON THE LEEWARD SIDE , Journal of Enhanced Heat Transfer, 29, 4, 2022. Crossref
-
Yadav Anupama , Badgaiyan Pankaj , Singh Amit Kumar , A Review on Various Types of Fins Geometries in Plate fin and Tube Heat Exchangers, SMART MOVES JOURNAL IJOSCIENCE, 2022. Crossref