| Title |
Study on Effects of Seawater Fouling on a Plate-Frame Heat Exchanger |
| Authors |
Jaehyeok Heo ; Dong-Won Lee ; Min-Hwi Kim ; Wonkeun Baik ; Rin Yun |
| DOI |
https://doi.org/10.6110/KJACR.2017.29.8.391 |
| Keywords |
해수 ; 파울링 ; 판형 열교환기 ; 결정화 ; 바이오 파울링 Sea water ; Fouling ; Plate-Frame Heat exchanger ; Crystallization ; Bio fouling |
| Abstract |
Understanding of seawater fouling characteristics is critical in designing a heat exchanger adapted in an effluent utilization system for a power plant. We reviewed three types of fouling mechanisms of general, biological, and crystallizing for a plate-frame heat exchanger, to be used for heat exchanging with heated effluent from a power plant. Also, mathematical models for each type of seawater fouling were suggested. Actual thermal resistance calculated from seawater fouling models were compared and implemented in designing a plate-frame heat exchanger. The bio-fouling model revealed the largest thermal resistance and the highest number of plates for a plate-frame heat exchanger under the same heat load. Overall heat transfer coefficient and pressure drop of a plate-frame heat exchanger under fouling conditions was lower by 58 percent and higher by 2.85 times than those under clean conditions, respectively. |