Technical Queries regarding Heat Exchanger

Hi all ,
Can anyone help me thru these questions...



a) % of thinning allowance calculation of tubes while expansion

b) standard drwg. for tube to tube sheet weld joints

c) Inner Radius (Min.) calculation for floating Head Cover In AES Heat Exchanger

d) Selection criteria for sliding strip/sealing strip width & thk only, length will be considered according to tube bundle length

e) calculation for finding PULL OUT LOAD ( for conduct mock up test)




Thanks in Advance....