SUN Lin, ZHAO Ye, LUO Xionglin. Minimum temperature difference analysis and pinch technology of multi-tube heat exchanger networks[J]. CIESC Journal, 2012, (9): 2991-2999.
SUN Lin, ZHAO Ye, LUO Xionglin. Minimum temperature difference analysis and pinch technology of multi-tube heat exchanger networks[J]. CIESC Journal, 2012, (9): 2991-2999.DOI: 10.3969/j.issn.0438-1157.2012.09.050.
which involve both countercurrent and co-current flows are commonly used.Pinch technology is proposed for heat exchanger networks (HEN) with countercurrent flow
but cannot be applied to multi-tube HEN directly.Thus
it is necessary to analyze the relationship among minimum temperature difference
pinch characteristics and total cost quantitatively for multi-tube HEN.Considering the selection of tubes number and total cost of HEN
minimum temperature difference was optimized to minimize total annual cost.Then
it was used to synthesize multi-tube HENs based on pinch technology.Meanwhile
the correction factor for log mean temperature difference (LMTD) was calculated and the results were analyzed.Two case studies demonstrated the effectiveness and application prospect of the presented method.