Clayton Armstrong 2011-02-22 GSK Aranda SP - steam&condensat

STEAM AND CONDENSATE AUDIT

Project N°30275

Date: 04/02/2011

GSK MANUFACTURING Aranda, Spain

Page 43 of 45

Established by E. Morin

To the attention of Ms. Beatriz Herrero-Gonzalo

exchanger otherwise it will reduce the effective steam temperature, and as a result, the heat

exchanger’s capacity. Air in the condensate system will cause corrosion.

11.2 Optimization

A number of solutions have been developed to solve the problems with heat exchangers at

low/partial loads. Finding the most effective and efficient solution would require custom tailored

engineering. Basically there are three methods to remove the condensate from a flooded heat

exchanger with steam pressure control:

• a closed loop pumping trap

• a Posipressure system

• a safety drain trap

A closed loop pumping trap arrangements uses a balancing line to equalize the pressure in the heat

exchanger and the pumping trap. Condensate will drain by gravity toward the pump, and will be

pushed out using steam pressure. The diagram below shows a typical setup: