TBM Facility Requirements in ITER and Estimated Cost ‘An initial assessment’ A special assignment: At the request from Dr. V. Chuyanov of ITER and approved by Dr. G. Nardella of OFES Clement Wong, General Atomics, USA Wong, General Atomics, USA Clement US- -ITER TBM Meeting, UCLA, ITER TBM Meeting, UCLA, February February 14 14- -15, 2007 15, 2007 US 1 Special assignment, OFES, USA
TBM Facility Requirements in ITER and Estimated Cost ‘A very preliminary assessment’ With updates for the Feb 14, 2007 presentation at UCLA ITER, Cadarache, ITER, Cadarache, January January 26, 2007 26, 2007 Clement Wong, General Atomics, USA Wong, General Atomics, USA Clement Valery Chuyanov, Chang Shuk Kim, Valery Chuyanov, Chang Shuk Kim, Alessandro Alessandro Tesini Tesini, Markus Iseli, Kimihiro Ioki, , Markus Iseli, Kimihiro Ioki, Manfred Glugla Glugla, Jerry , Jerry Sovka Sovka, ITER , ITER Manfred Otto Bede, KFKI- Otto Bede, KFKI -RMKI, RMKI, Hungary Hungary 2 Special assignment, OFES, USA
Outline Outline • Introduction • Four TBM and ITER interface areas 1. Port cell 2. Hot cell 3. TCWS Vault 4. Tritium plant • Cost Estimate List of items • Recommendations 3 footer text, location, date
Test of Tritium Breeding Blankets in ITER Test of Tritium Breeding Blankets in ITER � Tritium Breeding Blankets (BB) are not present in ITER but are necessary in DEMO. The two main functions of BB are: i) to convert neutron & gamma energy in heat and collect it by mean of an high grade coolant to reach high conversion efficiency (>30%) ii) to produce and recover all Tritium required as fuel for D-T reactors Tritium breeding self-sufficiency � BB are complex components submitted to very severe working conditions � ITER is an unique opportunity to tests BB mock-ups in a tokamak environment prior the construction of the DEMO � Test Blanket Modules (TBMs) � It is an ITER mission : “ITER should test tritium breeding module concepts that would lead in a future reactor to tritium self-sufficiency, the extraction of high grade heat and electricity production.” (ITER SWG Report to the IC) � TBMs have to be representative of a DEMO breeding blanket, capable of ensuring tritium-breeding self-sufficiency using high-grade coolants for electricity production � The ITER TBM Program is therefore a central element in the plans of all seven ITER Parties for the development of tritium breeding and power extraction technology. 4 footer text, location, date
TBMs Arrangement in ITER and Interfaces AREAS Arrangement in ITER and Interfaces AREAS TBMs Additional resources required for adaptation of present ITER building and preparation of ITER/TBM systems interfaces and for accepting/ running TBM systems tests in ITER � common cost to be determined by ITER and to be shared by all Parties willing to participate to the TBM program (need of agreement on cost sharing, procedures, coordination by ITER?, others…) By Luciano Giancarli, chair of TBWG At the kick-off meeting of the AHG/TBM July 10, 2006 5 footer text, location, date
TBMs Arrangement in ITER and Interfaces Areas TBMs Arrangement in ITER and Interfaces Areas TBM ports TBMs tests need a whole TBM system TBM Shield plug Frame The TBMs first wall is recessed of 50 mm and protected with a 2 mm Be layer TBM Location 6 footer text, location, date
TBMs Design Proposals by ITER Parties for Design Proposals by ITER Parties for TBMs day- -one one day 12 7 6 3 4 8 5 List of presented TBM Design Proposals for day-one (DDDs also available) � Helium-cooled Lithium-Lead TBM (1 design, F/MS struct.) � Dual-coolant (He+Lithium-Lead) TBM (2 designs, F/MS struct.) � He-cooled Ceramic Breeder/Be multiplier TBM (4 designs, F/MS struct.) � Water-cooled Ceramic Breeder/Be multiplier TBM (1 design, F/MS struct.) � He-cooled Liquid Lithium TBM (1 design, F/MS struct.) � Self-cooled Liquid Lithium TBM (1 design, V-alloy struct.) System type Test Port nb. 16 Test Port nb. 18 Test Port nb. 2 Selection of the He-coolant 2 lines 2 lines 3 lines coolant connections H 2 O-coolant - 1 line - at each of the 3 ITER ITER heat available available available test ports based on rejection system the TBM proposals He purge gas 4 lines 4 lines 4 lines ITER component 1 line 1 line 1 line cooling system 7 footer text, location, date
Four Interface Areas Four Interface Areas 3. TCWS Vault TBM Port Plug 4. Tritium Plant EU HCPB helium system Cooling lines 1. Port Cell Ancillary Equipment 2. Hot Cell Port plug cask 8 footer text, location, date
1. Port Cell Area: replacement of TBM 1. Port Cell Area: replacement of TBM TBM Removal from the machine: Step 1: Disconnect port plug and ancillary equipment and move the ancillary equipment unit (AEU) to its maintenance area (yet to be defined). Step 2: Bring in the transfer cask, extract the port plug to the transfer cask and move them to hot cell area. Step 3: Move and insert the port plug into the hot cell “red zone” area. Step 4: Maintain or replace the TBM and maintain or refurbish Cutting and re-welding of the AEU in its maintenance area. PbLi pipes on the AEU will be TBM Return to the machine: done in a temporary tent Step 5: Test the TBM and AEU with the testing utilities. Step 6: Disconnect utilities, insert the port plug to the transfer cask and return them to the port cell. Step 7: Insert port plug, move the transfer cask away, move in the AEU and reconnect TBM (port plug) with the AEU. AEU TBM transfer cask Hot cell area 9 footer text, location, date
TBM Maintenance: After D- -T plasma before TBM exchange T plasma before TBM exchange TBM Maintenance: After D 10 footer text, location, date
2. Hot Cell Area 2. Hot Cell Area Needs additional • Hot cell “red zone” windows and services • RH equipment • Hot cell area for ancillary equipment maintenance • Utilities for TBM and ancillary equipment tests Could be parked and maintained here with Increased area (TBD) Utilities: e.g. AC/DC, water, high pressure helium, diagnostics…etc., for the testing of TBM and ancillary equipment AEU 11 footer text, location, date
3. TCWS Vault Area 3. TCWS Vault Area Original space TBM HTS in TCWS Vault TCWS Area TBM Cooling system Equipment Room Level 18.06 Level 0.0 TBM Ports #2, 18, 16 Tokamak Bldg, E-W Section Port Cell Area 12 Equatorial Port Level Section View Special assignment, OFES, USA
3. TCWS Vault Area, con con’ ’t t 3. TCWS Vault Area, Needs high pressure Helium (8MPa) and water (15.5 MPa) lines from port cell to TCWS EU HCPB helium system and 4 more coolant system areas A. From Dr. Ezato This approach may not be acceptable due to building code seismic requirements and interference with the assembly hall B. Possible solution: build from ground up as attachment or use a separate building 13 footer text, location, date
4. Tritium Interface Area 4. Tritium Interface Area Two sources of tritium: 1. From the breeder and its corresponding purge stream and/or extraction stream. 2. From the tritium that got permeated and contaminating the main coolant stream. Observations: • The maximum pulse tritium generation rate is very small (~2.09 10 -6 gm/s) it may be reasonable to Tritium interface schematic assume that the bred tritium could be collected locally by the use of suitable gettering units or traps, which can then be delivered to the tritium plant for analysis. • ITER tritium group is ready to support the TBM program more detailed specification on coolant purification system (CPS) and tritium extraction system (TES) and accountancy requirements is needed. 14 footer text, location, date
Items included in the cost consideration Items included in the cost consideration Port cell area and lines to TCWS 15 footer text, location, date
Items included in the cost consideration Items included in the cost consideration Hot Cell Area 16 footer text, location, date
Items included in the cost consideration Items included in the cost consideration Other tools and TCWS Vault Area 17 footer text, location, date
Recommendations Recommendations • Prepare a summary report on this very preliminary assessment • Use the 3 frames, shields and dummy TBM case, since additional equipment can always be purchased later. • This cost assessment needs to be performed again in detail Are some of the items already in ITER cost? • Don’t want to double count. • Initiate and complete work in the following areas: Port Cell: Components design, TBM exchange and maintenance, procedure…etc. TCWS: Detail TBM cooling system location, design and cooling lines design. Hot Cell: AEU parking and maintenance (TBD), TBM RH equipment Tritium Plant: Further specifications from parties and re-assess needs. 18 footer text, location, date
Recommend
More recommend
