may06

To April 2006

Date Hour ID Note
Wed 03/May/06 15:49 GG Loop 1 locked at 0.55b, loop 2 open at 0.6b, al the others locked at ~0.4b. m=32.5kg. RUN.
^ 15:56 GG m=26.5kg. Compressor starts.
^ 16:21 GG m=26.7kg.
^ 16:44 GG m=26.2kg.
^ 16:50 GG m=26.0kg.
^ 17:24 GG m=24.9kg. No liquid in the compressor. RECOVERING.
^ 17:45 GG m= 28.3kg. RUN
^ 17:50 GG m=25.9kg. Compressor starts.
^ 18:11 GG m=25.1kg. No liquid in the compressor.
^ 18:44 GG m=24.6kg. No liquid in the compressor. RECOVERING.
Thu 04/May/06 13:40 GG System found in ALARM for weight variation. Reset. m=32.0 kg. RECOVER.
^ 15:43 GG Pressure 0.6b in all loops locked but loop 2. m=32.2kg. RUN.
^ 15:50 GG Compressor start. m=27.5kg.
^ 16:05 GG m= 27.2. HT of the sector problem: RECOVERING. Al loops open.
^ 16:36 GG Solved the network problem: IP address changed by </nop>NetOps. Changed the IP address in the PVSS interface (A. Tauro) and in the PLC (S. Berry).
^ 18:15 GG m=32.4kg. All loops locked at ~0.4b.
Fri 05/May/06 10:40 IAC m=31.610. Loop 3 only
^ 13:03 SC m=25.87 put in recovering. Loop 3 open
Mon 08/May/06 14:55 SC m=30.61, loop 3 open, system in run mode
^ 15:46 SC Loop 3 open, system in revovering
^ 15:58 SC m= 27.64, loop3 open, system in run mode
^ 16:20 SC m=25, Loop3 open, system in recovering
^ 17:07 GG m=22.5kg. No liquid in compressor. Recovering. Discovered serious detachment of the HSs on sector 1. Failure analysis on going.
Tue 09/May/06 09:51 GG m=30.0.
^ 17:27 GG System found in ALARM for weight variation. m=31.5. Reset. RECOVERING.
Wed 10/May/06 11:38 GG m=32.5kg. Loope 3 open, all the other locked.
^ 11:46 GG Temperature on the sector boxes and on the HSs is 21C (measured with </nop>quickTEMP, infrared thermometer). RUN.
^ 12:05 GG Temperature on the HSs is 17C.
^ 12:24 GG When powered, the normal HS reach 25C, the detached even more than 30C.
^ 13:22 GG m=24.0kg. RECOVERING.
^ 19:27 GG Other tests performed during the afternoon. SC reported that the system was in ALARM. Now is RECOVERING with all loops opened.
Thu 11/May/06 09:33 GG m=29.6kg. Locked all loops (at 0.4b) but 2 and 3.
^ 11:42 SC m=29.58 kg. Locked Loop2. system in Runmode
^ 13:17 SC m=22.5 kg. Loop 3 open, sysrem in recovering
^ 17:50 GG m=29.6kg. RUN
^ 17:59 GG m=27.2kg. Knee in the weight drops after 4 min. Stable temperature reached after 9 min. Return pressure rise up to 1.7b and decrease, with the compressor , again at 1.4b. When stable is at 1.55b. Temeprature test with IR camera and PT1000 measurements.
^ 18:48 GG m=24.0kg. RECOVERING.
Fri 12/May/06 10:54 GG m=29.6kg. Created a plots folder in D:\PVSS_Projects\SpdCooling_20060220\Plots . In steady state there is a stdev of 0.010kg. Limiting the data precision to 0.01?
^ 11:27 GG At 11:08 a slow increase of the weigth starts. Now is at 29.9kg. The compressor is still full throttling, the chiller is at 7.5°C, the loops are locked but loop 3. Pressure in the loops is 0.38b but loop 1 at 0.45b.
^ 11:34 GG m=29.9kg. RUN.
^ 12:01 SC m=26.54kg. recovering
^ 12:26 SC m=29.92kg. system in Rum mode
^ 12:41 SC m=26.58Kg. system in recovering
^ 15:26 GG m=30.1kg. STANDBY
Mon 15/May/06 16:45 GG System switched off by a general power cut. Chiller reset. System reset. RECOVERING with all loops open.
^ 18:16 GG m=32.3kg. All loops locked but loops 2 and 3 at pressure of ~ 0.37b.
Tue 16/May/06   RT AP Installation of sector 2 on loop 4.
Wed 17/May/06 Morning RT GG AP System ALARM. Loops evacuated. During evacuation of loop #4 probable air pollution due to ventilation with open vapours valves.
^ Afternoon RT AP Leak test on loop 4.
^ 15:30 RT AP Loop 2,3 and 4 open, the other locked. Freon flowing test on sector #2 with IR camera: OK. Interlock test with reading of PT1000 on sector #1.
^ 19:17 GG RT m=16.6kg. No liquid in the compressor. Loop 2 and 4 closed.
^ 19:33 GG RT STANDBY. Closed also loop 3.
Tue 30/May/06 10:25 GG Recovered from ALARM. Opened all the loops. m=29.8kg. Pressure in all loops 1.5ba. Locked all loop but loop 3. Always in STANDBY.
^ 10:33 GG RUN
^ 11:15 GG m=24.8kg. Loops 9 and 10 at 2ba: still liquid in that loops? The others at 1.5ba. Loops 9 and 10 closed.
^ 11:40 GG m=24.0kg.
^ 13:12 GG STANDBY, all loops open. m=21.5kg.
^ 14:16 GG m=25.9kg. All loops closed but loop 3.
^ 14:57 GG m=27.0kg. RUN
^ 16:09 GG m=21.2kg. STANDBY, all loops open.
^ 16:22 GG m=23.4kg. Closed all loop but 2. RUN
^ 17:05 GG m=20.6kg. STANDBY.
^ 17:35 GG m=23.9kg. Closed all loop but 2. RUN
^ 18:49 GG m=19kg. No liquid in the compressor yet. The top pressure in the vapuor manifold is 1.70ba, at the bottom is 1.88ba: difference given by the liquid column.
^ 18:59 GG m=18.9kg. STANDBY. All loops open.

Type ^ to repeat the date.

To June 2006

 


ID Name
GG Gianluca Guaglio
SC Simone Ceresa
IAC Ivan Amos Cali
RT Rosario Turrisi
AP Adriano Pepato

-- Main.gguaglio - 15 May 2006