Effect of the Slinger Ring on the Forced Convection Heat Transfer in a Window Air Conditioner

Chin-Hyuk Chang, Dae-Kwon Jeong, Dae-Hyeok Kim, Hyun-Cheol Park, Jong-Ho Lee, Man-Yeong Ha, Hyun-Sik Yoon (), Min-Il Kim and Seok-Beom Hong
Additional contact information
Chin-Hyuk Chang: LG Electronics, 84, Wanam-Ro, Seongsan-Gu, Changwon-Si 51533, Republic of Korea
Dae-Kwon Jeong: LG Electronics, 84, Wanam-Ro, Seongsan-Gu, Changwon-Si 51533, Republic of Korea
Dae-Hyeok Kim: LG Electronics, 84, Wanam-Ro, Seongsan-Gu, Changwon-Si 51533, Republic of Korea
Hyun-Cheol Park: LG Electronics, 84, Wanam-Ro, Seongsan-Gu, Changwon-Si 51533, Republic of Korea
Jong-Ho Lee: LG Electronics, 84, Wanam-Ro, Seongsan-Gu, Changwon-Si 51533, Republic of Korea
Man-Yeong Ha: School of Mechanical Engineering, Pusan National University, 2, Busandaehak-Ro 63beon-Gil, Geumjeong-Gu, Busan 46241, Republic of Korea
Hyun-Sik Yoon: Department of Naval Architecture and Ocean Engineering, Pusan National University, 2, Busandaehak-Ro 63beon-Gil, Gumjeong-Gu, Busan 46241, Republic of Korea
Min-Il Kim: Department of Naval Architecture and Ocean Engineering, Pusan National University, 2, Busandaehak-Ro 63beon-Gil, Gumjeong-Gu, Busan 46241, Republic of Korea
Seok-Beom Hong: Department of Naval Architecture and Ocean Engineering, Pusan National University, 2, Busandaehak-Ro 63beon-Gil, Gumjeong-Gu, Busan 46241, Republic of Korea

Energies, 2023, vol. 16, issue 24, 1-18

Abstract: The present study evaluates the effect of the slinger ring on the forced convection heat transfer in window air conditioners. Slinger rings are fitted around condenser fans to spread the condensate onto the condenser to achieve additional cooling. The single-phase forced convection is simulated to compare the thermal performance of the multiphase flow by the slinger ring. Experiments are performed to validate the numerical results. The numerical results well reconstruct the experimental ones, showing the regional dependent distribution and the discharge of the sprayed condensates by the slinger ring. The slinger ring causes a considerable heat transfer on the condenser coils by spraying the condensates, compared with the single-phase flow. However, the inner region of the slinger ring and the fan is almost the dead zone for the condensate spray, since the strong axial flow protects the entrainment of the splashed condensate, which is explained by the isotherms and velocity vectors. The regions of the occurrence of the additional heat transfer are almost overlapped to those exposed to the condensates sprayed by the slinger ring. The slinger ring contributes to a substantial increase of approximately 17% in the heat transfer on the condenser coils, compared with the single-phase flow.

Keywords: slinger ring; heat transfer; multiphase flow (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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