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 34 of 45

Established by E. Morin

To the attention of Ms. Beatriz Herrero-Gonzalo

STEAM DISTRIBUTION

External leaks of steam or condensate

OK

No leak has been observed during the audit

from pipes, flanges, etc.

System design, trapping points etc.

To be improved Steam lines have all been interconnected to

distribute steam in both ways (from and to Eagle).

Steam line between Eagle and tunnels 1 and 2 is

undersized for high steam demands.

It misses many trapping points in front of control

valves and in “low points”.

Insulation

To be improved Refer to optimization project n°3

Steam quality

To be improved Steam quality is good at the outlet of the boiler

house but is progressively decreased by the lack of

drip legs in front of steam users

Steam pressure level

To be improved There are many pressure reducing stations. The

pressure level is not always adapted to the steam

usage.

Water hammering

OK

No water hammering has been observed in the

distribution lines

STEAM USERS

Condensate drainage and air venting

OK

from heat exchangers

Steam traps

To be improved 15% failed traps identified

Some traps are wrongly mounted (inclined,

reversed)

CONDENSATE AND FLASH STEAM RECOVERY

Condensate recovered

OK

Sizing of condensate return lines

OK

Flash steam recovery

To be improved Flash steam could be recovered on condensate

receivers. A vent condenser exists in tunnel 2 but is

not used anymore.

Water hammering

OK