weller1
Mechanical
- Dec 31, 2002
- 1
thread391-329837
We recently installed thermocouples on two secondary economizer inlet tube bends at opposite ends of the Zurn HRSG. The thermocouples are Type K with SS304 pads that were welded on the tube skins. The tube bends are SA-178 material and are .220 inches thick. We are trying to get an indication of water temperatures during startups. Is there a formula I could use to approximate the water temp? Water from the primary economizer comes in at 310 degrees F. During startups I am reading 550 degrees F. on one thermocouple and 475 degrees F. on the other.
Thanks for any help on this.
We recently installed thermocouples on two secondary economizer inlet tube bends at opposite ends of the Zurn HRSG. The thermocouples are Type K with SS304 pads that were welded on the tube skins. The tube bends are SA-178 material and are .220 inches thick. We are trying to get an indication of water temperatures during startups. Is there a formula I could use to approximate the water temp? Water from the primary economizer comes in at 310 degrees F. During startups I am reading 550 degrees F. on one thermocouple and 475 degrees F. on the other.
Thanks for any help on this.
