Karratha Gas Plant

Design and Detail of Butted Kettles

CDMS designed kettle type heat exchangers for Woodside LNG Train IV for the Karratha gas plant. As the heat exchangers were connected in pairs (butted), special consideration had to be made for the design of tube sheets and supports.

CDMS calculated the combined shell stiffness of various diameters and used this in the design of the tube bundle and tube sheet. The flexibility of the heads was considered in the tube sheet design in order to reduce the load on the tube sheet, resulting in an economic design.

CDMS then developed a complex structural model of two connected exchangers to calculate the support reactions. The nozzle load effects were renegotiated in conjunction with the client, which resulted in an economic but safe design.

The external manifolds were designed as per industry piping standards using pipe flexibility analysis.

For further details on Pressure Vessel Design Services provided by CDMS please contact the CDMS team on (+61 8) 9421 9060.