Example graphs Features: • System data • Component data • Hierarchies • Hierarchy – data links • Comment (about function) • Status 5/10/2011 1 Features; Implication(s)?Example graphs Missing • Operating modes annotated w/comments on intent for modes • Traffic lights for each mode • Explanation of traffic light 5/10/2011 2 Occupied: Air flow increased Un-Occupied: low air flow to many zones No difference between measured and simulated data during occupied hours  no performance problemExample graphs Consistencies? Inconsistencies? Improvements? 5/10/2011 3 Features; Implication(s)?Example graphs 1. Water running throughout the night (faucet left on 2. Water used at regular intervals at 8pm and 10pm 3. Missing data 4. Water usage follows occupancy trends 5. Water usage drops during holidays 1 2 4 5 5 3 Features of data 5/10/2011 4Example graphs 1. Annotate! 2. Provide operational status – suggestions here? 1 2 4 5 5 3 5/10/2011 5 Features; Implication(s)?5/10/2011 6 Features; Implication(s)?1. Baseline chilled water usage 2. Direct relationship between chilled water consumption and OAT 3. Slope slightly decreases for OAT > threshold (region 3) 1 2 3 Trend line 5/10/2011 7Consistencies? Inconsistencies? Improvements? Indoor Lighting 5/10/2011 8Indoor Lighting 1. Missing data 2. High unoccupied power usage compared to occupied usage and other floors 2 5/10/2011 9Outdoor Lighting Consistencies? Inconsistencies? Improvements? 5/10/2011 10 Features; Implication(s)?Outdoor Lighting 1. Drop in unoccupied power usage 2. Missing datum 3. Outside lighting usage higher in the daytime than at night 3 5/10/2011 11Outside Air Temperature vs Steam Flow Rate Consistencies? Inconsistencies? Improvements? 5/10/2011 12 Features; Implication(s)?Outside Air Temperature vs Steam Flow Rate Consistencies? Inconsistencies? Improvements? 5/10/2011 13 OAT OAT OAT OAT Steam Steam Steam Steam Features; Implication(s)?Outside Air Temperature vs Flow Rate: Scatter for Comparisons/Signatures 1 Trend Line 2 3 4 5/10/2011 14 1. Anomaly 2. Steam flow inversely proportional to dry-bulb Outside air temperature (good!) 3. Second trend line for same outside temperature range: occupied vs. unoccupied? 4. Baseline steam flowHandheld vs. BMS Measurements 5/10/2011 15Figure 9 - Space 293 Temperature Measurements Figure 10 - Space 293 BMS Measurements Graph with Manual Points Plotted Why lower at ceiling? 5/10/2011 165/10/2011 175/10/2011 18 Features; Implication(s)?5/10/2011 19 Features; Implication(s)?CO2 Concentration 5/10/2011 20 Features; Implication(s)?Carbon Dioxide Status? Variation from Handheld Device and Building Monitoring System 050100150200250300350Room 111 Room 164 Room 270(Group A)Room 270(Group B)OutsideCO2 (ppm)Features; Implication(s)? 5/10/2011 21Figure 7 - Space 292A Temperature Measurements Figure 8 - Space 292A BMS Measurements Graph with Manual Points Plotted 5/10/2011 22Figure 9 - Space 293 Temperature Measurements Figure 10 - Space 293 BMS Measurements Graph with Manual Points Plotted 5/10/2011 23Room 293 & 292A Measured vs. Recorded Space Temperature Temp F Room 292 Room 293 OAT High 74.5 71.6 58.7 Sensor Level 75.6 72.6 Low 75.1 70.7 Furthest Wall 73.5 72.3 5/10/2011 24 Features; Implication(s)?Outdoor Air Temperature Measured vs. Recorded 5/10/2011 25 Features; Implication(s)?Space Temperature Status? 70717273747576Room 292A Room 293Temp (F)CeilingMiddleGroundCheapBMS [60]BMS [1]575859606162OutsideTemp (F)CeilingMiddleGroundCheapBMS [60]BMS [1]5/10/2011 26 Features; Implication(s)?Current Draw (Rm 292 Handheld vs Rm 341 BMS) 1. Five devices (lamp, 2 computers, 2 monitors) 2. One computer unplugged 5/10/2011 27 Features; Implication(s)?Supply/Outside Air Temperatures • Rationale for identifying any green, yellow or red data regions; • Modes of operation in functional intent 5/10/2011 28Supply/Outside Air Temperatures • Relative fraction of energy use of system re building as a whole? • Energy simulation exercise to confirm or disconfirm your intuition. 5/10/2011 295/10/2011 30Plug Load Current Draw, Lighting Load Current Draw, Ceiling Fan Load Current Draw 2. this electronic in sleep mode and therefore draws less amps. 1. time when some plug load (i.e., laptop, lamp, etc.) is turned on and used. 3. electronic is used again and shut off. • graphs for lighting and ceiling outlined with a yellow line because unclear whether data are good. – no amps drawn in 2 week period… either sensors broken or load never used. • difficult to put traffic light on this type of data .. – large range of data appropriate for these sensors – loads driven by occupant, not outside/inside conditions. 5/10/2011 31 Features; Implication(s)?• Modes? • Why 24 hour/day plug load draw (region 2)? • Status (green/yellow/red) • Relative fraction of energy use of components re building as a whole? • Energy simulation exercise to confirm or disconfirm your intuition. Plug Load Current Draw, Lighting Load Current Draw, Ceiling Fan Load Current Draw 2. this electronic in sleep mode and therefore draws less amps. 1. time when some plug load (i.e., laptop, lamp, etc.) is turned on and used. 3. electronic is used again and shut off. • graphs for lighting and ceiling outlined with a yellow line because unclear whether data are good. – no amps drawn in 2 week period… either sensors broken or load never used. • difficult to put traffic light on this type of data .. – large range of data appropriate for these sensors – loads driven by occupant, not outside/inside conditions. 5/10/2011