SFP Level Instrumentation: Through-Air Radar VEGAPULS Models 66 and 62 Extended Range

Transcription

1 SFP Level Instrumentation: Through-Air Radar VEGAPULS Models 66 and 62 Extended Range Heiner Dornburg, Business Manager January 2013 Phone: +1 (704) Reliable Spent Fuel Pool Level Monitoring by AREVA p.1

2 Through-Air Radar System Architecture 3.7 /10 Horn Antenna All Stainless Steel. No electronics, a simple funnel. Sensor electronics Fist size, stainless steel housing. Display Panel Includes Battery backup, 120VAC/24VDC power converter. Waveguide Pipe 212ft./74ft. with 1 /2 ID Stainless Steel Sizes given for VEGAPULS 62 Extended Range / VEGAPULS 66 Signal wire. 4 20mA No limitation Primary Power Signal wire. 4 20mA No limitation Both systems: Nothing in the pool, <0.5W power consumption, FCC part 15 certificate for non-interference with communication devices, EMI/RFI tested, IEEE * and EPRI TR tested, field proven, off the shelf. Remote Display, e.g. Main Control Room Flexibility to fit every pool. * 3.7 horn antenna still to be tested Reliable Spent Fuel Pool Level Monitoring by AREVA p.2

3 Added Offering for Larger SFP Areas VEGAPULS 62 Extended Range Differences and commonalities of VEGAPULS 62 ER and 66 Longer waveguide pipe: 212ft. Instead of 74ft. Pipe diameter is 1 inch instead of 2 Smaller horn antenna: 3.7 instead of 10 IEEE testing applies equally (smaller horn to be tested) Same low power consumption <0.5W (62 ER is best of class ) FCC part 15, EMI/RFI tests and low power ensure non-interference with other electronic devices. Same product line Both are proven products Same physical dimension and housing of electronics Nothing in the pool with both devices! Low Price, Low Risk Your Best Choice, Ready for Sale! Reliable Spent Fuel Pool Level Monitoring by AREVA p.3

4 Through Air Radar Measurement in Arduous Conditions VEGA Americas offers different Through-Air Radar versions. The chosen C-Band Radar model 66 is ideal for extreme process conditions, e.g. strongly agitated media. References in various industries and on US NAVY ships. The chosen K-Band Radar model 62 ER with high definition electronics for extended range is ideal for measurement under difficult conditions. Bubbling or sloshing water don t affect the measurement proven in AREVA tests. Non-contact measurement. Unaffected by water temperature, density and movement. Condensation is ignored. Most Suitable and Reliable Technology. Reliable Spent Fuel Pool Level Monitoring by AREVA p.4

5 Through Air Radar No Impact of Saturated Steam VEGAPULS 66 is designed for level measurement in liquids with strongly agitated media. VEGAPULS 62 ER is designed for level measurement in liquids under difficult conditions. Saturated steam and dense smoke conditions are no issue for the measurement, as demonstrated by AREVA for both models. With steam and smoke present concurrently, the radar looked at a boiling/agitated water surface. Horn antenna Steam, smoke, agitated water have no effect on the level reading. AREVA Saturated Steam Test Setup. Reliable Spent Fuel Pool Level Monitoring by AREVA p.5

6 VEGAPULS Successfully Passed IEEE Testing Testing (external provider) on Nov. 30, 2012 Electronics Display Box Testing was also performed per EPRI TR , with a peak requirement of 14g. Reliable Spent Fuel Pool Level Monitoring by AREVA p.6

7 /product-salesinstrumentation.html SFP Product Demonstration in Lynchburg The debris, steam and moving water capability of the AREVA/VEGA Through-Air Radar system were demonstrated in front of customers. Written customer summary: In conclusion, the demonstrations offered compelling evidence that the Through-Air Radar measurement technology is a viable candidate. Installation including a long waveguide with 180⁰ and 90⁰ bends is raised and lowered above pool. The attendees can see the display at all times. The 27ft Moving Wall allows the simulation of quickly rising and falling water level. Large debris is introduced in the beam area at different heights - with no effect. Reliable Spent Fuel Pool Level Monitoring by AREVA p.7

8 Through-Air Radar Installation in a Typical PWR Reliable Spent Fuel Pool Level Monitoring by AREVA p.8

9 Also applies to VEGAPULS 62 Extended Range Through-Air Radar VEGAPULS 66 Test Certificates Not affected by extreme seismic stress Not affected by Shock, Vibration Not affected by interference, not interfering with function of other electrical/ electronic devices. No interference with function of communication devices. Software developed and tested to toughest international standards. Independent FMEDA available. Certified for use in most sensitive environments. Reliable Spent Fuel Pool Level Monitoring by AREVA p.9

10 Objects floating on the water will not impact the correct reading. Objects submerged below the water will not be seen. Through Air Radar Ignores Debris If the water level drops to uncover submerged debris (or built-in structures), the return signal will normally be greater for the water level and the actual water level will be detected. Concrete debris will not affect the reading as concrete isn t a good reflector Physical separation of the second device prevents concurrent loss of both readings. Except in extreme cases, debris is not an issue. Reliable Spent Fuel Pool Level Monitoring by AREVA p.10

11 Advantage of Through-Air Radar Surface Tracking Capability Through-air radar will continue to track water level and ignore fallen objects in beam. Guided-wave radar cannot track level below point where conductive object (no matter how small!) contacts probe. Can ignore debris while providing accurate spent fuel pool level measurement. Reliable Spent Fuel Pool Level Monitoring by AREVA p.11

12 SFP Level Measurement Calibrating Through-Air Radar In-situ calibration Normal operation In-situ calibration method: Simpler to Calibrate. Horn antenna is rotated to calibration position simply by loosening the lap joint flange screws. Flange away from pool minimizes risk of dropping parts in pool. A hand-held target can be walked along the poolside at known distances to check sensor calibration. Reliable Spent Fuel Pool Level Monitoring by AREVA p.12

13 AREVA Value Proposition Simple and reliable: Off-the-shelf, few & simple parts, nothing in the pool and only stainless steel in the SFP room. Easily installed/operated, no maintenance. Environmental endurance: Demonstrated to operate in adverse conditions (i.e., steam, smoke, boiling/agitated water surface). Both systems aren t affected by strong forces of moving water and can see past large debris. Right for nuclear: Seismically tested in accordance with IEEE Tested for EMI/RFI. SIL2 software. Proven applications: thousands of devices sold for each model, many used in difficult conditions, e.g. in power plants, on NAVY ships, etc. Lowest Lifecycle Cost: Fewest parts, easy qualification, no maintenance. Great regulatory Certainty: Nothing beats a stainless steel pipe. No analysis for radiation proof components needed, no need to evaluate forces of moving water and nothing to mount in the pool. Proven in nuclear environment. Safe, Simple, Reliable and Economical. No FOAK aspects. Reliable Spent Fuel Pool Level Monitoring by AREVA p.13

14 Radar Technology Comparison 1/2 Regulatory Acceptance THROUGH-AIR RADAR Nothing in the pool, fully tested, and the industry witnessed a demonstration under several simulated design conditions. GUIDED WAVE RADAR Testing incomplete, seismic test requirements still undetermined. Component in the pool introduce RAI risk with qualification againse hydrodynamic forces during the event. Complexity of Solution Susceptibility to Submergence References Seismic Testing Other Tests, Operational Experience Plant Impact Electronics, waveguide pipe (normal stainless steel pipe), horn antenna stainless steel funnel). All components except AREVA seismic supports are off-the-shelf. No special tools required. All electronics, cables and connectors mounted up to 74' away from the pool. 300,000 sold by VEGA. Thousands in use on NAVY aircraft carriers. 300 sold to Hanford WTP. Savannah River Site. IEEE 344 test of full system completed in 11/2012. Passed MIL tests for Shock, Vibration. EMI/RFI test per MIL, Software certified per IEC 61508, non-interference certified per FCC15. No parts in the pool. Liner not touched. Electronics, mineral insulated coax cable, rad-proof coaxto-stainless steel connector, pool edge mount, stilling well pipe, rad-proof spacers, waveguide cable, fuel rack mount needed. Special tools required for stilling well installation. Coax connector and cable located at the pool's edge are susceptible to submergence during an earthquake. Information not available to AREVA. No vendor has completed testing. Due to undefined exposure to moving water, the test approach is still unclear. Information not available to AREVA. With no stilling well, sensor probe is susceptible to debris, affecting accuracy. If stilling well is used (4inch diameter with built-in sensor & spacers) need to address mounting to fuel rack (rack could move in an event). In addition, increased maintenance with boron crystallization. Need for liner mounting may arise, depending on NRC reaction to qualification approach. Reliable Spent Fuel Pool Level Monitoring by AREVA p.14

15 Radar Technology Comparison 2/2 Installed Cost THROUGH-AIR RADAR Low cost off-the-shelf components and no need for in-pool mounting. GUIDED WAVE RADAR Significant customization, e.g. for radiation hardened components and in-pool mounting drive up the cost. Significant risk due to remaining open qualification questions. Maintenance Backup battery replacement once per outage cycle. No drift, no boron crystal buildup. Simple in-situ calibration with swivel flange. No work close to pool. Boron crystal buildup. In-situ calibration still to be clarified. Challenging disassembly due to mineral insulated cable in conduit and in-pool parts. Accuracy in adverse conditions Customers witnessed that debris, saturated steam, dense smoke and boiling water have no effect on the measurement. Adequate with stilling well protecting waveguide cable from debris. Stilling well affected by water forces during event unless secured to the pool liner. Power Supply Market Readiness Long Term Support <0.2W in AREVA test. 120V AC. Battery backup integrated in display panel: 8 AA type Li-Ion batteries sufficient for approx. 300hrs continuous operation. Completely tested, readily available for sale. OEM is worlds leader in radar level measurement technology. 300,000 devices in the field. AREVA offers off-the-shelf parts. Manufacturing, testing, support fully US-based. Requires external UPS power supply Several open issues, test approach not yet completely defined. Information not available to AREVA. Reliable Spent Fuel Pool Level Monitoring by AREVA p.15

16 What Others Say About Through-Air (Pulse Burst) Radar Pulse Burst Radar accurately and reliably measures a wide range of media in a broad range of process conditions, from calm product surfaces and water-based media to turbulent surfaces and aggressive hydrocarbon media. As a noncontact device, Pulse Burst Radar is not susceptible to the complications that arise whenever a probe contacts the process media, such as coating by viscous media or corrosive attack due to aggressive chemicals. The greater the measuring range, the more does radar prove itself to be the economical solution, given the cost of extended probe lengths. Radar is virtually unaffected by temperatures, pressures, the presence of vapors, or air movement within a vessel's free space. Changes in specific gravity, conductivity and dielectric constants also have no effect on measurement accuracy. As a 100% electronic instrument, the absence of moving parts translates into low maintenance costs. As a two-wire, loop-powered device, power requirements and installation are vastly simplified. (Source: Other US NPP Instrumentation Vendor s Website) Reliable Spent Fuel Pool Level Monitoring by AREVA p.16

17 AREVA SFP Website AREVA SFP website: List of Certificates (Quality Assurance section) Presentations: Spent Fuel Pool Overview, Guided Wave versus Through-Air Radar, Easy Installation and Debris Handling. Product Documentation (Operation and Maintenance Manuals, Spec. Sheet for Display, Safety Manual, Brochures) Demonstration Video (Video Tab) Information for your Informed Decision, frequently updated. Reliable Spent Fuel Pool Level Monitoring by AREVA p.17

18 SFP Level Instrumentation Complete Solution by AREVA Plant specific detail design. Ideally provided as part of EPC contract. Benefit: EC package by AREVA supports correct input for product manufacturing and provides a single point of accountability. Hardware Delivery Simple and off-the-shelf solution with maximum regulatory certainty. Augmented quality with all testing completed. Documentation available. Benefit: All requirements fulfilled. No in-pool mounting. Simple. Engineering Implementation Training. Site installation and commissioning by AREVA DZ LLC or customer resources with AREVA field engineer. Benefit: Complete, seamless solution by AREVA, clear responsibilities. Maximized Certainty, Lowest Installed Cost. Reliable Spent Fuel Pool Level Monitoring by AREVA p.18

19 Through-Air Radar Installation at Hanford Waste Treatment Plant Over 300,000 VEGA Through-Air Radar Devices in the field. Several hundred supplied to Hanford Waste Treatment Plant Reliable Spent Fuel Pool Level Monitoring by AREVA p.19