Normal and Warm Operation Thermodynamic Cycles

AB

C

DE

G H IF

I

D

FGH

EA B

C

I’

I’

Dummy Load

To detector From detector

D

E

F

G

H

I

I’

C

B

A

Normal and Warm Operation Thermodynamic Cycles

jbotelho | 29/11/2012

Prim

ary

Wat

er

Chiller Circuit Water CircuitBrine CircuitLow Temperature Stage High Temperature Stage

Thermosyphon C3F8 Circuit

R23

TS Condenser

Surface

Underground

R404a

Dummy Load 100

Dummy Load 56

Filters

Concentric HX

Degassing System

Condenser

PCV3101

EvapConn

jbotelho | 29/11/2012

Process Break-DownTSC3F8

PCV1301PCV1302

PV1221PV1222PPV1201

CIP2402EH2406EH2407EH2408

CIP2401EH2401EH2402EH2403EH2404EH2405

DummyLoad125

DummyLoad56Condenser

EH2100EH2101PCV2102aPCV2102b

ConcentricHX

PV2100PV2102PV2105PV2106

Filters

DegasSyst

PV1101PV1103PV1202PV2201

PV2101PV4301PV4302

EvapConn

PCV3101

Process Temperature & Power Control

Passive Units

External interfaces(RUN mode only)

jbotelho | 29/11/2012

TSC3F8 Operational States

STOPOperation

STOPOperation

Normal OperationNormal Operation

TSC3F8 Run order (Operator Request)

Not RUN Order

RUNWarm operation

RUNWarm operation

Go to Warm operation

Go to Normal operation(Operator request)

TSC3F8Process Control

TS Cooling DownTS Cooling Down

RUN

Tsat set point achived

Lower set point requested

Go to STOP(Operator request)

jbotelho | 29/11/2012

TSC3F8

PCV1301PCV1302

PV1221PV1222PPV1201

CIP2402EH2406EH2407EH2408

CIP2401EH2401EH2402EH2403EH2404EH2405

DummyLoad125



ConcentricHX

PV2100PV2102PV2105PV2106

Filters

DegasSyst

PV1101PV1103PV1202PV2201

PV2101PV4301PV4302

EvapConn

PCV3101

Condenser Operational States

STOP OperationNo regulation


RUN ColdRUN Cold

Not RUN OrderGo to RUN

STAND-BY OperationRegulating


Cooling DownCooling Down

Go to RUN

Set point achieved

RUN

Lower Set point requested

Go to STAND-BY

FILLINGOperation

FILLINGOperation

RECOVERINGOperation

RECOVERINGOperation

Go to RECOVER

Go to RECOVER

jbotelho | 29/11/2012

TSC3F8

PCV1301PCV1302

PV1221PV1222PPV1201

CIP2402EH2406EH2407EH2408

CIP2401EH2401EH2402EH2403EH2404EH2405

DummyLoad125



ConcentricHX

PV2100PV2102PV2105PV2106

Filters

DegasSyst

PV1101PV1103PV1202PV2201

PV2101PV4301PV4302

EvapConn

PCV3101

Other Units Process Control

STOPOperation

STOPOperation


RUNOperation

RUNOperation


ConcentricHXDummyLoad56DummyLoad125FiltersEvapConnDegasSyst

jbotelho | 29/11/2012

TSC3F8

PCV1301PCV1302

PV1221PV1222PPV1201

CIP2402EH2406EH2407EH2408

CIP2401EH2401EH2402EH2403EH2404EH2405

DummyLoad125



ConcentricHX

PV2100PV2102PV2105PV2106

Filters

DegasSyst

PV1101PV1103PV1202PV2201

PV2101PV4301PV4302

EvapConn

PCV3101

TSC3F8 Normal Operation SequenceTSC3F8 Normal Operation

RUN order

RUN DummyLoad56RUN DummyLoad125

RUN DegasSystBrine Temperature set point = Condenser sub-cooling temperature -5 K

Vapour line free of liquid

Liquid line filled with liquid

Set PCV3101 to 50 %BPFlow stable for 5 min

Liquid line filling procedure

Recover return line liquid procedure

Condenser go to RUN State

RUN Filters

YES

NO

YES

NO

TSC3F8 Running in NORMAL OPERATION

RUN ConcentricHX

Condenser go to STAND-BY State

TS in Cooling Down Sub State

STOPOperation

STOPOperation



Not RUN Order

RUNWarm operation

RUNWarm operation





RUN




jbotelho | 29/11/2012

TSC3F8 Go to Warm Operation and back to Normal Operation

TSC3F8 Warm Operation RUN Order

STOP ConcentricHXSTOP DegasSyst

TSC3F8 set point = -35 °C

BPFlow set point = 22 %

TSC3F8 Running inWARM OPERATION

TSC3F8 from Warm Operation to NORMAL OPERATION RUN Order


Go to TSC3F8 Cooling Down Sub-State

TSC3F8 Set point = user request

STOPOperation

STOPOperation



Not RUN Order

RUNWarm operation

RUNWarm operation





RUN




jbotelho | 29/11/2012

Condenser Operation Sequence



RUN ColdRUN Cold

Not RUN Order

Go to RUN




Go to RUN

Set point achieved

RUN


Go to STAND-BY

FILLINGOperation

FILLINGOperation

RECOVERINGOperation

RECOVERINGOperation

Go to RECOVER

Go to RECOVER

Brine temperature set point = 30 °C (Continuous process -> do not wait until it’s reached!)

START Filling Liquid Line Procedure

Tbrine > Tsat?

Open Condensation regulation valve to 100 % (no regulation)

YES

NO

Liquid Line Filled?

YES

NO

Brine temperature set point = Tsat – 10 K

END of Liquid Line FillingProcedure – Go to STOP

Brine temperature set point = Tsc – 40 °C

START Recover Return Line Liquid Procedure

Tsat < Tbrine + 5?

Open PV1202

YES

NO

Close PV1202

END of Recover Return Line Liquid Procedure – Go to STOP

jbotelho | 29/11/2012

Condenser Operation Sequence

RUN Operation Order

Tsat – Tsc ≥ 4 K?

TT1103 – Tsc < 2 K?

Brine Temperature set point = TSC3F8 temperature set point – 10 K

Brine T set point + 5 K < Tsc?

Tsat = Tsat – 1 KTsc = Tbrine + 5 K

YES

NO

YES

NO

YES

NO

Tsat = TSC3F8 set point?

Condenser RUN STATE achieved

YES

NO

Condenser in Cooling Down Sub-State

PT3201 < 1.1 bar?

RUN EvapConn

YES

NO



RUN ColdRUN Cold

Not RUN Order

Go to RUN




Go to RUN

Set point achieved

RUN


Go to STAND-BY

FILLINGOperation

FILLINGOperation

RECOVERINGOperation

RECOVERINGOperation

Go to RECOVER

Go to RECOVER

STAND-BY Operation Order

Regulation of Sub-cooled Temperature (Tsc = Tsat – 5 K)Regulation of Condensation Saturation Temperature (Tsat = Tsat_set_point)

Condenser in STAND-BY

Tbrine = (Tsc -10 k) ± 2 K?

YES

NO

Brine Temperaure set point = Tsc – 10 K

jbotelho | 29/11/2012

Filters and EvapConn Operation Sequence

START Filters switch Order

Filter YDS2101 selected?

Open PV2105wait 5 s

Open PV2100wait 60 s

Open PV2102wait 5 s

Open PV2106wait 60 s

YES

NO

Filter YDS2102 Selected

Close PV2102Wait 5 s

Close PV2106

Close PV2100Wait 5 s

Close PV2105

Filter YDS2101Selected

END of Filter Switch Order

Connection to Evaporative request

Connected to Evaporative

RETURN VALVES:Open PV2201Open PV4302

Wait 20 sOpen PV4301

SUPPLY VALVE:Open PV2101

BPFlow Set point = 10 %

STOP Connection to Evaporative request

Connection to Evaporative STOPPED


SUPPLY VALVE:Close PV2101

RETURN VALVES:Close PV4301Close PV4302Close PV2201

PT2101 > 15.5 barAND

PT3201 < 1.2 bar?

YES

NO

STOPOperation

STOPOperation


RUNOperation

RUNOperation


jbotelho | 29/11/2012

ConcentricHX Operational Sequence

RUN ConcentricHX Order

TT2101 = Tsat_PT3201

TT2101 = Tsat_PT3201 ± 2 K

for 60 s?

Open PCV2102aWait 10 s

Close PCV2102b

YES

NO

ConcentricHX RUNNING

AB

C

DE

G H IF

I’Dummy Load

To detector From detector

D

E

F

G

H

I

I’

C

B

A

jbotelho | 29/11/2012

DegasSyst Operational SequenceRUN DegasStyst Order

Sound Speed > threshold?

Start Vacuum Pump

Open PV1222

PT1202 < 5 mbar?

Close VP1222Confirm closed

Close PV1221

Stop Vacuum Pump

Open PV1221

START Timer

Timer > threshold? ALARM –> TSC3F8 Psat set point = 1 bar

YES

NO

YES

NO

NO

YES

Stop Timer

jbotelho | 29/11/2012

Liquid line PV1101

jbotelho | 29/11/2012

IF dh < 100 m CLOSE PV1101 AND Full Stop Interlock

Calculation of dh:

TT in SDX1

TT in PX15 Pit

TT in USA15

10 %

40 %

50 %

y = -0.011373x2 - 4.770141x + 1,452.955371R² = 0.999861

0

200

400

600

800

1000

1200

1400

1600

1800

2000

-80 -60 -40 -20 0 20 40

Den

sity

[kg

/m3]

Temperature [°C]

Series1

Poly. (Series1)

h𝑑 =𝑃𝑇 2101−𝑃𝑇 1201

9.81× (0.1×𝜌𝑇𝑇 𝑆𝐷𝑋 1+0.40×𝜌𝑇𝑇 𝑃𝑋15

+0.50× 𝜌𝑇𝑇𝑈𝑆𝐴15 )

This is how it looks:dhPT = (PT2101-PT1201)/(9.81*(0.1*(-0.011373*(TT1102)^2 - 4.770141*(TT1102) + 1,452.955371)+0.4*(-0.011373*(TT1103)^2 - 4.770141*(TT1103) + 1,452.955371)+0.5*(-0.011373*(TT2104)^2 - 4.770141*(TT2104) + 1,452.955371)))

Next part: UNICOS Language

jbotelho | 29/11/2012

0 Safe State

Push RUN ButtonT0-1

2

Cooling Down

Normal Operation

Warm Operation

Tsat = TSC3F8 set pointT1-2

Warm Operation requestT2-3

Power back to normalT3-1

1

3

T0

T0

T0

T0

Lower set point requestT2-1

0 Safe State

Recovering Procedure

Filling Procedure

Stand-by

1

3

T0

T0

T0

T0

2

Cooling Down4

RUN OrderT0-1

Recover OKT1-2

Filling OKT2-3

Cooling Down requestT3-4

T0

TSC3F8 Condenser

Documents

Normal and Warm Operation Thermodynamic Cycles