gpsvn,
Check out this link. http://www.red-bag.com/ Look under the Library section / design guides and then click the link for heat exchangers. It is a broad overview but it should get you started.
Also look in the training section.
Jop wrote:
[i]Exchangers, Shell and Tube
Shell and tube exchangers should be grouped together wherever possible. Stacked shell and tube exchangers should be limited to four shells high in similar service; however, the top exchanger should not exceed a centerline elevation of 18 feet (5.5m) above high point of finished surface, unless mounted in a structure. Keep channel end and shell covers clear of obstructions such as piping and structural members to allow unbolting of exchanger flanges, and removal of heads and tube bundles.
Exchangers with removable tube bundles should have maintenance clearance equal to the bundle length plus 5 feet (1.5m) measured from the tube sheet to allow for the tube bundle and the tube puller.
Maintenance space between flanges of exchangers or other equipment arranged in pairs should be 1′- 6″ (0.5m) (min.). Exchanger maintenance space from a structural member or pipe should not be less than 1′- 0″ (300mm) (min.).[/i]