Progress Meeting 27 th February 2013 CATANIA PORT – INFN LAB NERC Creep 2 - Progress towards deployment incorporating NERC failure forecasting project (EFFORT)
Creep 2 Cell – Mechanical Specification • Enhanced loading range for Basaltic Rocks -1 MN • Pressure Vessel to emulate Laboratory confining pressure – 50 MPa • Confining Pressure Intensifier – 50 MPa • Pore Fluid Intensifier/Separator – 20 MPa • Protected Displacement Transducers • Enhanced Load Cell to measure up to 1 MN • Ultrasonic Transducers assembly to measure micro-siesmicity with the sample • Conditioning and control electronics housing
Creep 2 Frame – Mechanical Specification Frame Size • Width 2. 8 metre • Depth 2. 8 metre • Height 2. 7 metre • Weight approx 1700 kg (in air)
Electronics Housing Size : Width – 0. 6 metre Length – 1 metre Height – 0. 5 metre Aluminium Construction FEA tested Pressure test during summer Southampton University Heat dissipation to be tested but perdicted temp rise 30 deg C from ambient – 14 deg. C
Cell VAT and bellows assembly
Prototype Cell during testing Displacement Transducer Assembly Pore Pressure Separator Confining Pressure Intensifier
Prototype Cell during assembly with prototype electronic PCB’s
Prototype Cell ready for installation in the Test Pressure Chamber (the Bucket)
Electrical and Communications Requirements Electrical Power – 220 V AC or possibly 24 VDC – approx 220 watts max. (with video setup for biological survey – 300 watts) Communications – 2 optical lines max (indepentant or split) Bandwidth to Port – 100 Kbs max + video intermittantly Bandwidth from Port – on demand upto 1 Mbs + video?
CREEP 2 - Digital and Analogue Signal Management and System Schematic
CREEP 2 – Signal Conditioning Schematic
Conditioning Electronics DC to DC conversation from 24 VDC to +/- 5 VDC Bridge supply and Conditioning for: Load Displacement Pore Volume Signal Conditioning and variable gain control (upto x 2000) for 2 Ultrasonic transducers Matching to DAQ system
Sea. CON Wiring Harness for 6 cells.
Data management: from deep sea to the Internet Storage Area Network on Fiber Channel 1 Gbps
EFFORT Architecture Data Transfer Data Storage Web tool Data Access • Creep-2: Adaptive JAVA application using RSYNC with GUI. • Volcanic data: Periodical script using FTP. • Creep-2: Metadata storage in MYSQL database. Data storage in NAS File System. • Volcanic data: Metadata and data storage in MYSQL database. • LIFERAY website with several RAPID portlets to select data and submit the forecast models to the Cluster. The results of the models are visualized in the website. Through the website, metadata about different experiment are displayed. The user can select the data to be use for executing the models. Data Transfer Web tool Data Transfer Data Storage Data Access
FAST – Flexible Automated Streaming Transfer Tool
EFFORT Website UCL Data Portal
New developments on the 400 MPa Rock Physics Ensemble New leadthroughs allow an extra 16 differential transducers to be used on the specimen assembly New jacket allows up to 12 new AE transducer assemblies and 6 electrodes New permeameter with full digital control facilities to improve and increase pore fluid control capabilities
TEST CHAMBER ASSEMBLY
Testing Programme – Creep 2 Prototype Cell • Primary tests without AE on Darley Dale Sandstone (DDS) to evaluation purposes – Data available • Secondary tests with AE and repeating a previous test carried out on the Rock Physics Ensemble – Data available for testing of data transfer rate requirements etc.
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