Modernizing your Sewer Flow Monitoring Technology Chris Skehan Todays Agenda Introduction Flow Monitoring Technology Overview Modern Features 1. Wireless Telemetry 2. Data Redundancy 3. Site Specific Technology 4. Overflow Monitoring & Alarming 5. Adding Video/Images Case Studies and Examples (time permitting) Naperville, IL Data Redundancy Within Equipment & Sensors Indianapolis, IN Flow Monitoring For Long Term Control Plan, Modeling Overview of ADS Questions and Answers Chicago, IL Wireless Flow Monitoring, Modeling, Data Redundancy 1
Performing Flow Monitoring Since 2005 BS in Environmental Management (IU) MS in Geographical Information Sciences (IU) Father of 3 Children (John, Luke, Cate) Numerous flow metering technologies are available, each with their own set of advantages and disadvantages Stevens and Mitchell WEFTEC 2005 2
Collection Systems have vast amounts of data. - Flow Monitoring is just a small piece of the puzzle that has tremendous impacts on its users. SD1 Kentucky Incoming Line Stable Hydraulics Ideal for D & V measured in same place / Cross Sect. Avoid Disturbances in MH Channel Far enough upstream to avoid drawdown Most Common for Equipment mounted in MH Newer Systems Can be Mounted outside MH 3
Iso Q (MGD) 6/3/2015 Inflow and Infiltration Analysis (RDII) Capacity Analysis Overflow Monitoring & Discharge Reporting Hydraulic Modeling and Calibration Proactive System Maintenance Dry Weather Flow MP50 Weekdays Traces 0.12 0.10 Stormwater Monitoring 0.08 0.06 0.04 Billing Networks 0.02 0.00 0 3 6 9 12 15 18 21 Hours SSES Analysis Scatter Graph MP50 Lanfear-Coll (HC=2.66) 1.4 Any Others? (Audience) 1.2 MGD 1.0 0.27 0.24 0.21 VFINAL (ft/s) 0.8 0.6 0.4 0.2 0.0 0 2 4 6 8 10 12 14 DFINAL (in) 0.18 0.15 0.12 0.09 0.06 0.03 0.0075 0.015 Modernizing The Equipment 4
Rainfall (in) 6/3/2015 Pipe Flow MTOWN_13 Flow Meter Data 1.8 1.6 1.4 Rainfall Qfinal(g) MTOWN_14 0.45 0.40 0.35 Flow (MGD) 1.2 1.0 0.8 0.6 0.30 0.25 0.20 0.15 0.4 0.10 0.2 0.05 WIRELESS TCP/IP - Satellite 0.0 15 Mon Mar 2010 22 Mon 1 Thu 8 Thu 15 Thu 22 Thu 1 Sat 8 Sat 15 Sat 22 Sat 1 Tue Date 0.00 0 1 0 1 OPERATIONS & ALARMING FLOW DATA DELIVERY ENGINEERING ANALYSIS REPORTING MODELING CAPACITY OVERFLOWS Necessary at Installation Cost of Physical Labor Cost of Fleet / Vehicles Traffic, Safety, Injuries Cables, Cords, Wires Staff could be focusing on other issues Flow Monitoring Services Raises Costs! Nearly all manufactures today offer wireless telemetry Some have it standard! 5
Near Real Time Data Delivery Assists with Maintenance of Equipment Decreased Operational Costs Push Data to The Cloud for SCADA Imports Ability to Troubleshoot Equipment with MFT Typically Leads to better data! No Monitor Directly Measures Flow Depth Data Sensors Velocity Data Sensors Flow Monitoring Data can be critical to its users (Rehab, CIPs, Billing Agencies) Temporary Monitoring Project are Short Term So Redundancy Builds in Safeguards for Data Collection Some Manufactures offer Combo Sensors or Multi-Channel Systems for Redundant Data Collection 6
Emphasis on Depth Downlooking Ultrasonic is Most Accurate Pressure Drifts, but offers Surcharge Depths Radar and upwards ultrasonic gaining traction Accuracy Cross Checking (pressure vs. ultrasonic) Multiple Velocity Technologies Available Typically harder/expensive to build in redundancy, but can be accomplished with multiple sensors Site Assessments can be very beneficial in selecting an appropriate velocity technology 7
Optimum Performance Range of Various Technologies Pipe Diameter vs. Depth of Flow 120% 100% Optimum Condition Gated Cross Correlation Technology SURCHARGED FLOW % Full with Avg. Daily Flow 80% 60% 40% Probable Hydraulic Conditions for RADAR Technology Optimum Conditions for ISCO & Sigma Pressure Depth & Avg. Velocity Optimum Hydraulic Conditions for ADS Peak Doppler Technology Optimum Hydraulic Conditions for MGD Pulsed Doppler Technology Optimum Hydraulic Conditions Accusonic Time of Transit Technology 20% 0% 0 8 24 36 48 72 96 120 144 180 216 240 Sewer Diameter (In.) Portable Area Velocity Meters all have Sweet Spots Each Manufacturer differs Larger Diameter Pipes require different depth and velocity sensor considerations Transit Time Cross Correlation or Gated Velocity Paths Multi-Depth Paths Smaller Diameter Pipes Can be Challenging Debris catches on typical sensor (maintenance) Out of Flow Sensors (Surface Velocity) Most Popular Accuracy Challenges (flow patterns, no flow, etc) 8
Overflow Warnings and Alarms Can be Sent from Equipment to Users/Software Advanced Warnings for O&M Crews Alarming timestamps used for Overflow Reporting (DMR) System Issues identified quickly Blockage Depth Increase Alarms Overflow Flow Loss Alarms PS Power Failures Depth / Flow Alarms CSO Outfalls Overflow Alarming Basement Backups Rainfall Alarming Manhole Removed Vandalism SSO Downstream of Flowmeter SSO and Bottleneck Downstream Depth - Velocity Flowmeter ROOTS Condition! Send Alert Alarm! 9
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http://youtu.be/9ke0o8mx0a0 Near Real Time Data Wireless Equipment Data Redundancy on nearly every Monitor Site Specific Technology on Large Diameter Overflow Monitoring (CSO) and Alarming Live Camera Access at Critical Outfalls 11
Indy CSO 118 Sensor 1: Downlooking Ultrasonic Surface Velocity Surcharge Pressure Surcharge Peak Velocity Sensor 2: Uplooking Ultrasonic Druck Pressure Peak Velocity Flow Monitor For Real Time Control Split Sensor Setup Redundant Data Meter Needed to Talk to SCADA and via Wireless for Internal Software / Analysis Intelligence built into meter to drive SCADA / control Flows needed from both monitoring point locations 12
Sensors at 1 st monitoring point are calculating flow and sending that info to SCADA to control Sluice Gate with Automation Sensors at 2 st monitoring point are calculating flow when gate is open! 13
Company Overview ADS LLC is comprised of four operating businesses: ADS Environmental Services is a leading developer and supplier of technology-based equipment, software, and services for the water and wastewater markets. Hydra-Stop is a manufacturer of stopping and tapping equipment, insertion valves, and services used for pipe maintenance in the water and wastewater markets. Accusonic is a leading provider of multiple-path chordal transit-time flow meters to hydroelectric, water, and wastewater market IETG is a leading provider of products that are designed to assist water companies in the management of their water distribution and wastewater networks, along with associated equipment installation, commissioning, and maintenance services in the UK. Manufacturing of Flow Monitoring Equipment Triton+ Area/Velocity System FlowAlert Depth and Alarming Systems RainAlert Rain Gauge System Accusonic Multipath Systems Turnkey Software Solutions Turnkey Monitoring Services Installation Maintenance Calibration and Confirmations Repair Replacement Data Analysis I/I Reports Capacity Studies Rehab Recommendations Engineering Analysis System Evaluations Manhole Inspections Smoke Testing CCTV (large diameter) Water Loss Contol 14
Questions & Answers Chris Skehan ADS LLC 708-341-9701 cskehan@idexcorp.com 15