Table 1. Critical Dimensions Measurement Description Comments Verified at Carderock Measured by Team Dimensions (m) length overall (in direction of wave travel) 5.75 From outer edge of caisson, to outer edge of caisson width overall (perpendicular to direction of wave travel) 2m From outer edge of caisson, to outer edge of caisson height overall 1.9 m From top of OAC flange to bottom of buoyancy pod Dimension of Air Bladder (L x W x H) 1.6m x 0.9m x 0.12m Static, operational inflation of air bladder, nominal Dimension of Tube (L x D) 4.75m x 0.098m (ID) Length is from center of bag port to center of bag port. Diameter Froude scaled consistent with 2m ID full size tube. Please provide the following measurements for each body of the WEC Mass (kg) 130 kg Dry Buoyancy (kg) 410 kg net Based on CAD, fresh water Center of gravity (m) TBD pending final tweaks during shakedown runs June 22 Refer to Appendix A for preliminary values as part of Ershigs analysis Based on CAD
Center of buoyancy (m) TBD pending final tweaks during shakedown runs June 22 Refer to Appendix A for preliminary values as part of Ershigs analysis Based on CAD Moment of inertia Pitch (kgm2) TBD pending final tweaks during shakedown runs June 22 Refer to Appendix A for preliminary values as part of Ershigs analysis Based on CAD roll (kgm2) TBD pending final tweaks during shakedown runs June 22 Refer to Appendix A for preliminary values as part of Ershigs analysis Based on CAD yaw (kgm2) TBD pending final tweaks during shakedown runs June 22 Refer to Appendix A for preliminary values as part of Ershigs analysis Based on CAD Operating Depth (based on SWL to top of device) (m) 0.6m – 1.0m SWL to top of Caisson Operating Draft (based on SWL to lowest point of device) (m) 2.6m SWL to bottom of buoyancy pod Wetted surface area (m2) TBD pending final tweaks during shakedown runs June 22 Refer to Appendix A for preliminary values as part of From CAD
Error values/substitutes Identify error values/substitutes (i.e. “999” or “NaN”) X X X Constant value Repetitions of consecutive data with the same value (repeating standard deviations or offset). X X Completeness Check whether the number of records and their sequence is correction (identification of gaps, check for repetition) X Range /threshold Check whether the data of each sensor lie within the measurement range of that sensor. X X Measurement continuity Compare the rate of change of a signal to expected/seasonally accepted values and between similar measurements that are collocated in close proximity X X Measurement Consistency comparison between statistics, such as the ratio of wave height to power X Near-by Comparison Comparison with similar/duplicate measurements that are collocated in close proximity X Spectral spikes Spikes in the spectral data X X Trends and inconsistencies Identify trends in data such as large drift in sensor output or inconstancies in sensor output for similar input X
Post Test Notes for Appendix B Please see test notes for section 4.2. C: Quantity Froude Scaling Reynolds Scaling wave height and length wave period and time wave frequency power density s s0.5 s-0.5 s2.5 s s2 s-2 s-2 linear displacement angular displacement s 1 s 1 linear velocity angular velocity s0.5 s-0.5 s-1 s-2 linear acceleration angular acceleration 1 s-1 s-3 s-4
Displacement – Inertial Frame X is defined relative to the 0 deg wave heading, Z is upward and Y completes the right hand rule All Mooring Tension for each line The instantaneous value of the mooring tension for line j All Kinematic Power (inferred from Dynamic via calibration table) Kinematic Side of Power for PTO j All Dynamic Power Dynamic Side of Power for PTO j All Absorbed Power(inferred from Dynamic via calibration table) Absorbed power for PTO j All The following variables will be calculated for each run and be available for viewing between runs (if time permits) Variable Definition Reference Formula Relevant Runs Wave PSD Spectral density of the water surface elevation All Significant Wave Height Measured significant wave height where All Omni-Directional Wave Energy Flux Omni-Directional Wave Energy Flux All
Wave Energy Period Wave Energy Period All Horizontal Displacement Horizontal displacement of the WEC from its at rest position All Mean The mean value of the mooring tension for line j All Standard Deviation The standard deviation of the mooring tension for each mooring line All Max The maximum value of the mooring tension of all mooring lines All Min The minimum value of the mooring of all mooring lines All Mean The mean value of the dynamic side of power for PTO j All Standard Deviation The standard deviation of the dynamic side of power All Max The maximum value of the dynamic side of power All Min The minimum of the dynamic side of All
power dynamic spectral density spectral density of the dynamic side of power, one for each power conversion chain of the WEC All Mean The mean value of the power All Standard Deviation The standard deviation of the power All Max The maximum value of the power All Min The minimum of the power All Absorbed power spectral density spectral density of the absorbed power, one for each power conversion chain of the WEC All