Question 67

With reference to multi-tubular heat exchangers explain: (A) How and where impingement attack is likely to occur in the tubes (B) Why is it desirable that coolant flow rate should not exceed that required to maintain correct fluid temperature (C) Ample well-shaped water boxes and smooth tube inlets are desirable (D) Partial obstruction of tube bore is a common cause of tube failure.

2012/SR7 2012/SR10 2015/SR02 2015/SR09

2017/SR 01/ SR 12