TY - JOUR
T1 - Thermal resistance in corrugated plate heat exchangers under crystallization fouling of calcium sulfate (CaSO4)
AU - Lee, Eungchan
AU - Jeon, Jaemyeong
AU - Kang, Hoon
AU - Kim, Yongchan
N1 - Funding Information:
This work was supported by the Human Resources Development program in Energy Technology (No. 20124010203250) and the Energy & Technology Development program (No. 2012T100100356) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant financial resource from the Ministry of Trade, Industry & Energy, Republic of Korea.
PY - 2014/11
Y1 - 2014/11
N2 - In a water heating system, the performance of the corrugated plate heat exchangers (PHEs) is often degraded by crystallization fouling due to the precipitation of insoluble salts on the heat transfer surface. In this study, the fouling resistance in corrugated PHEs was measured and analyzed according to CaSO4 concentration, flow velocity, inlet temperatures of the solution and hot water, and corrugation angle of the plate. In addition, the asymptotic fouling resistance and asymptotic fouling period of PHEs were analyzed by varying the operating and geometric conditions of PHEs. A new correlation for the CaSO4 crystallization fouling resistance was developed in terms of the asymptotic fouling resistance and asymptotic fouling period. The present correlation yielded satisfactory predictions with a mean absolute deviation of 4.8% from the measured data.
AB - In a water heating system, the performance of the corrugated plate heat exchangers (PHEs) is often degraded by crystallization fouling due to the precipitation of insoluble salts on the heat transfer surface. In this study, the fouling resistance in corrugated PHEs was measured and analyzed according to CaSO4 concentration, flow velocity, inlet temperatures of the solution and hot water, and corrugation angle of the plate. In addition, the asymptotic fouling resistance and asymptotic fouling period of PHEs were analyzed by varying the operating and geometric conditions of PHEs. A new correlation for the CaSO4 crystallization fouling resistance was developed in terms of the asymptotic fouling resistance and asymptotic fouling period. The present correlation yielded satisfactory predictions with a mean absolute deviation of 4.8% from the measured data.
KW - Accelerated condition
KW - Calcium sulfate
KW - Correlation
KW - Crystallization fouling
KW - Fouling resistance
KW - Plate heat exchanger
UR - http://www.scopus.com/inward/record.url?scp=84907373204&partnerID=8YFLogxK
U2 - 10.1016/j.ijheatmasstransfer.2014.07.069
DO - 10.1016/j.ijheatmasstransfer.2014.07.069
M3 - Article
AN - SCOPUS:84907373204
VL - 78
SP - 908
EP - 916
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
SN - 0017-9310
ER -