Heat transfer performance of water and Nanoencapsulated n-nonadecane based Nanofluids in a double pipe heat exchanger


DORUK S., ŞARA O. N. , KARAİPEKLİ A., YAPICI S.

HEAT AND MASS TRANSFER, cilt.53, ss.3399-3408, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 53 Konu: 12
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1007/s00231-017-2072-x
  • Dergi Adı: HEAT AND MASS TRANSFER
  • Sayfa Sayıları: ss.3399-3408

Özet

The heat transfer and pressure drop characteristics for the flow of water, which is base fluid, and nanoencapsulated n-nonadecane based nanofluids in a double pipe heat exchanger were investigated. The results showed that no improvement in overall heat transfer coefficient was observed for the nanofluids containing 0.42% and 0.84% solid volume ratios with reference to the base fluid, while an improvement of about 10% was obtained for the nanofluids containing 1.68% solid volume ratio. It was found that the friction factors for the nanofluids exhibited a slight increase reference to the base fluid. A performance analysis based on constant pumping power was also performed.