significance of fouling factor in shell and tube heat
Answer / youga
Fouling factors provide a numerical value, reflecting the resistance to moving heat between fluid mediums. Typically, heat exchanger designers compensate for high fouling factors by increasing the exchanger's surface area. Although fouling will still occur, there is more surface area for functional heat exchanges, continuing adequate operations
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At 150 degree Celsius, a mixture of 40 wt % Sn and 60 wt % Pb present, forming phases of alpha and beta. Chemical composition of Sn at each phase : CO (overall) : 40 %, CA (alpha) : 11 %, CB (beta) : 99 %. (a) State 2 reasons for the existences of alpha and beta phases for the mixture of Sn – Pb at 150 degree Celsius. (b) By using Lever Rule, calculate the weight fraction of each phase for alpha, WA = Q / (P Q) and beta, WB = P / (P Q) where Q = CB – CO and P = CO – CA.
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