1 / 4

Provisional Hydrogen System Control Sequence

Provisional Hydrogen System Control Sequence. TW Bradshaw Y Ivanyushenkov D Baynham MJD Courthold. Control logic – Fill Sequence. Chiller on Set TS1_sp = TS1_initial PV2,3,5,7,14,17,18,19 closed CV4 closed PV1 open VP2 on, PV20 open. LS1 > LS1_sp. Increment/Decrement TS1. No.

hayes-fuentes
Download Presentation

Provisional Hydrogen System Control Sequence

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Provisional Hydrogen System Control Sequence TW Bradshaw Y Ivanyushenkov D Baynham MJD Courthold

  2. Control logic – Fill Sequence Chiller on Set TS1_sp = TS1_initial PV2,3,5,7,14,17,18,19 closed CV4 closed PV1 open VP2 on, PV20 open LS1 > LS1_sp Increment/Decrement TS1 No PG1PG1_sp No Yes TS1<TS1_sp And VG3<1mbar Pressure Control Close PV2&3 and CV4 Stop Pressure Control Loop Set TS1_sp = TS1_low Open PV5 Yes Cooling System on Set TS2_sp = 15K Start Pressure Control Loop Start Vac Monitor Open PV2,3 Open CV4 Vac monitor VG3<1mbar H2 System Ready No Empty Sequence Yes

  3. Empty Sequence Open PV7 Close PV2,3,4 Set TS1_sp = TS1_low Set TS2_sp = 20K Empty Sequence LS1<LS1_low PG2<0.1bar AND TS3>100K No Yes No Stop cryocooler Start Absorber Heater Control Loop Increment/Decrement TS3 Yes Close PV1 TS3>30K 1bar<PG2<1.3bar No No Yes Absorber Heater Control H2 System Empty Stop Absorber Heater Control Loop Yes

  4. Helium Purge Sequence Close PV18, Open PV19, Open CV4 100% Close PV18, Open PV19, Open CV4 100% Open PV19 Purge Sequence VG5<1mbar VG5<1mbar VG5<1mbar No No No Yes Yes Yes VP1 On Close PV1,14,17,18,19 Open PV2,3,5,7 Open CV4 100% Close PV19 Open PV18 Open CV4 5% to control flow Close PV19 Open PV18 Open CV4 5% to control flow Close PV19 Open PV18 Open CV4 5% to control flow 1bar<PG1<1.3bar AND 1bar<PG2<1.3bar 1bar<PG1<1.3bar AND 1bar<PG2<1.3bar 1bar<PG1<1.1bar AND 1bar<PG2<1.1bar No No No Yes Yes Yes Close PV18 H2 System Purged

More Related