Control Strategies 2009 Arrow Canyon Complex Air Cooled Condenser - PDF document

1 Control Strategies 2009 Arrow Canyon Complex Air Cooled Condenser

2 Harry Allen Arrow Canyon Complex Site Chuck Lenzie Silverhawk Canyon Complex Arrow

3 Chuck Lenzie Canyon Complex Arrow

Control I ssues Arrow Canyon Complex � Start-Up Operations � Fan Sequencing Normal Operations � Fan Sequencing High Winds 4

5 Block 1 Configuration Block 2 Steam Flow Canyon Complex Arrow

Configuration Arrow Canyon Complex Fan Street Non-Condensable Steam Flow Gases A B C D E Condensate 6

7 Configuration – Fan Streets D C B A E D C B A E D C B A E Fan Cell Address D C B A E Canyon Complex Arrow

Configuration – Fan Sequence Arrow Canyon Complex First, the Center, C Row, Slow then Fast, Then B, D, A & E Slow, then Fast 8

Control I ssues – Start-Up Arrow Canyon Complex � Currently S/U only Available in Manual Mode – During S/U Operators sometime forget to put in manual. � Too Many Fans – Causes Vacuum Problems. � Exploring Automating the Start-up 9

Configuration Arrow Canyon Complex Proposed New Fan Starting Sequence: First, the Center, C Row, Slow then Fast, Then B, D, A & E Slow, then Fast 10

Control I ssues – Wind Arrow Canyon Complex � Currently Only One Sequence. – Off Summer Peak, not fans run. – Windward Edge Fans have diminished efficiency. � Consider Changing Sequence Based on Wind. – Explore Staging On Windward Fans Last. 11

Temperature Plot – Wind from SW @ ~ 15MPH, OSA Temp 94°F, All Arrow Canyon Complex Fans in Fast E D C B A 5.0 3.0 1.0 9.0 7.0 301 302 303 304 305 306 307 308 309 310 401 402 403 404 405 406 407 408 409 410 103.0-104.0 101.0-103.0 99.0-101.0 97.0-99.0 95.0-97.0 12

Temperature Plot – Wind from NE @ ~ 15MPH, OSA Temp 102°F, Arrow Canyon Complex All Fans in Fast E D C B A 8.0 4.0 6.0 2.0 4.0 6.0 8.0 0.0 0.0 2.0 4.0 301 302 303 304 305 306 307 308 309 310 401 402 403 404 405 406 407 408 409 410 122.0-124.0 120.0-122.0 118.0-120.0 116.0-118.0 114.0-116.0 112.0-114.0 110.0-112.0 108.0-110.0 106.0-108.0 104.0-106.0 13

Control I ssues – Wind Arrow Canyon Complex � Initial Temperature Survey Found Little Cell Temperature to Wind Correlation. � Not sure if this issue worth pursuing at Chuck Lenzie. 14

15 Questions Canyon Complex Arrow