The owner has future plans to install a photovoltaic array on the house.

Transcription

1 Monitoring Plan for Live-Work House (Cook+Fox). This 1,500 sq ft house at 317 Marcellus Street includes an HRV for ventilation and small Munchkin 80 MBtu/h Condensing Boiler for radiant floor heating and indirect water heating. The radiant floor has three heating zones. The owner has future plans to install a photovoltaic array on the house. The Live-Work house is made with stress skin panels and insulated concrete form (ICF) basement walls. Radiant floor tubing mounted on the underside of the floor Monitoring Approach A data acquisition system will be installed to monitor the energy performance of the house and its mechanical systems. The system will be mounted in a 16 in x 18 in enclosure mounted on the wall near the boiler (black plywood). The system will be based around Campbell Scientific CR1000 data logger. Data will be collected at 15-minute intervals. Our plan for communications is to plug into the home owners Ethernet router in order to go out to internet. As a backup plan we will use a dedicated phone line. The proposed data points are shown in Table 1 and Figure 1. The monitoring points were selected to: Measure total house electric use (WTI & WTE) to quantify internal house loads, and boiler power (WBI) which actually is power supplied to wall boiler is mounted on. o This includes hot water heater, boiler, (3x) zone pumps, hot water supply pump, hot water return pump, and CDH s box & data logger. Measure boiler fuel use (FG) to quantify fuel use patterns, Measure the thermal output to the floor (FR, TFS, TFR) to determine boiler efficiency and heating loads as a function of loading and supply temperature, Measure domestic hot water (DHW) water use and thermal output ((FHW, THWO, THWI) to quantify loading patterns and hot water use, CDH Energy Corp. 1 November 2010

2 Measure the status of the heating zone pumps (SP1, SP2, SP3), the water heating pump (SPW), and water temperature supplied from the boiler (TBS) in order to understand and quantify the operating patterns of the system. Measure the inlet and outlet conditions from the ventilation system (e.g., HRV) (TAI, RHI, TAO, TAS) to confirm operation, detect defrost patterns (IFV), quantify heat recovery performance. Natural Gas FG Boiler Hot Water Breaker Panel SP1 SP2 SP3 Radiant Floor Circuits TBS FR TFS TFR SPW Indoor Air Supply Air DHW Tank TAI RHI TAS THWO FHW THWI HRV WTI, WTE, WBI, IFV Cold Water Exh Air TAO Outdoor Air Figure 1. Schematic of Heating and Ventilation System with Data Points Shown CDH Energy Corp. 2 November 2010

3 One time Measurements FV Ventilation Flow Rate cfm Shortridge flow hood WFV HRV Fan Power kw Fluke 39 Power Meter WPn Individual Pump Power kw Fluke 39 Power Meter FG FHW THWI THWO CDH Energy Corp. 3 November 2010

4 TFS TFR FR TBS Figure 2. Boiler System with Sensors Installed CDH Energy Corp. 4 November 2010

5 WBI WTI, WTE IFV (left) Option 3 Wattnode measuring WBI (right) Standard Wattnode measuring WTI and WTE Breaker box with CT s and Current Sensor TAO SP1, SP2, SP3 Current Switches for under floor heating zones. Thermocouple slid through vent to outside, above bathroom sink ceiling. CDH Energy Corp. 5 November 2010

6 TAS TAI RHI Thermocouples and RH sensor in ducting above drop ceiling. CDH Energy Corp. 6 November 2010

7 Addendum Livework House John Miranda Multiplier and Offset Calculations: Sensor R (ohms) output Range (ma) Sensor Range Mult Offset IFV RHI Verifications: Gas Meter: According to the meter outside, the system measured 2cf of use within 1min 34sec. 12:57:00 12:58:00 12:59:00 1:00:00 1:01:00 Main Mtr Cum Reading Rate (CF/min) HRV: The wall control for the HRV does not work. The fluke reads.64kw and 68A regardless of what setting the controls are on, the HRV is currently always on. TAI RHI Time Campbell :50 TSI Reading :50 Difference HRV TSI Readings 1.75" in 3.5" in 5.25" in Duct Size cf Supply Exhaust ~100 FHW: A one quart measuring cup was used. 1 qt =.250 gallons. Campbell Before (gal) After (gal) Difference (gal)

8 CR1000 Data Logger Analog Terminals (Temperatures) SE1 TFS Floor HW Supply Temp Watlow Type T TC SE2 TFR Floor HW Return Temp Watlow Type T TC SE3 TBS Boiler Supply Temp Watlow Type T TC SE4 TAS HRV Supply Temp Watlow Type T TC SE5 TAO Outdoor Temp Watlow Type T TC SE6 TAI Space Temp Watlow Type T TC SE7 THWO DHW Outlet Temp Watlow Type T TC SE8 THWI DHW Inlet Temp Watlow Type T TC

9 CR1000 Data Logger Analog Terminals SE 9-15 SE9 24 VDC + IFV 100 Ohm HRV Fan Current Veris 921 Current Sensor SE11 24 VDC + RHI 100 Ohm Space RH Vaisala RH Transducer VX2 (1000mV) SE12 SP1 2.2k Ohm Floor Pump 1 Runtime Veris 300 Current Switch VX2 (1000mV) SE13 SP2 2.2k Ohm Floor Pump 2 Runtime Veris 300 Current Switch VX2 (1000mV) SE14 SP3 2.2k Ohm Floor Pump 3 Runtime Veris 300 Current Switch VX2 (1000mV) SE15 SPW 2.2k Ohm DHW Pump Runtime Veris 300 Current Switch

10 CR10 00 Data Logger Pulse Terminals 12 V P2 G 6vdc 16vdc 2.2k Ohm Pulse sig. FHW Power gnd. (white) Hot water flow rate Omega FTB 4607 flow meter 24V P2 G +24 vdc Frequency Input Ground FR Radiant floor flow rate Onicon F1300 flow meter C1 Normally Open Common (white) FG Boiler system gas consumption AM250 Gas meter with pulse 5V C2 P1 WTI Total house power (import) Wattnode WNB (P1) C 1 C 2 C3 C3 P2 Com. WTE Total house p ower (export) Wattnode WNB (P2) C4 C5 C6 C4 WA1 Computing Center Power Wattnode WNB208 Option 3(P2) G C5 WA2 Presentation Center Power Wattnode WNB208 Option 3(P3) C6 P1 Com. WBI Boiler power Wattnode WNB Option 3 (P1) 1k ohm resistor unless noted. *typ Pulse Channel currently set as switch enclosure not as high frequency. Switch closures require pull up resistor, high frequency inputs do not. CR1000 Program: 'CR1000 Series Datalogger 'To create a different opening program template, type in new 'instructions and select Template Save as Default Template 'date: 'Channel Name Description Eng Units Instrument / Transducer 'P2 FHW Hot Water Flow Rate gal Omega FTB 4607 'P1 FR Radiant Heat Flow rate gal Onicon F1300, 3/4 in

11 'C1 FG DHW Tank Gas Use CF AM250 Gas Meter with Pulse 'C2 WTI Total House Import kwh Wattnote WYB-208 (P1) 'C3 WTE Total House Export kwh Wattnote WYB-208 (P2) 'C4 WA1 Circuit 2 Power kwh 'C5 WA2 Circuit 2 Power kwh Wattnote WYB-208 option 3 (P2) 'C6 WBI Boiler system power kwh Wattnote WYB-208 option 3 (P1) 'C7 WA3 Circuit 3 Power kwh Wattnote WYB-208 option 3 (P3) 'SE1 TFS Temperature Supplied to Radiant floor F Type-T Thermocouple 'SE2 TFR Temperature Returned Radiant floor F Type-T Thermocouple 'SE3 TBS Temperature Supplied from Boiler F Type-T Thermocouple 'SE4 TAS HRV Supply Temperature F Type-T Thermocouple 'SE5 TAO Ambient Temperature F Type-T Thermocouple 'SE6 TAI Indoor space Temperature F Type-T Thermocouple 'SE7 THWO DHW Outlet Temperature F Type-T Thermocouple 'SE8 THWI DHW Inlet Temperature F Type-T Thermocouple 'SE9 IFV HRV Fan Current (dmpr pos) amps Veris 921 Current Sensor 'SE10 'SE11 RHI Indoor Space RH (Upstairs) % 4-20 sensor 'SE12 SP1 Pump 1 Status min Veris 300 Current Switch 'SE13 SP2 Pump 2 Status min Veris 300 Current Switch 'SE14 SP3 Pump 3 Status min Veris 300 Current Switch 'SE15 SPW Pump Hot Water Status min Veris 300 Current Switch 'program author: Const filelimit = 7 Const size_per_file = Const Fdir = "/storage/campbell_ftp/" Const CurrentThreshold = 500 'Declare Public Variables 'Example: Public OutStat,LastFileName As String * 32,pfname As String * 64,ftpresult As Boolean,NewFileNa Public Filenames(filelimit) As String * 32,filecheck, fileloop Public Renamecheck As Boolean Public PTemp As Float Public batt_volt As Float Public FHW As Float Public FR As Float Public FG As Float Public WTI As Float Public WTE As Float Public WBI As Float Public WTI_ACC As Float, WTE_ACC As Float, WBI_ACC As Float, FHW_ACC As Float, FR_ACC As Float, Public WA1_ACC As Float, WA2_ACC As Float, WA3_ACC As Float Public SPW As Float Public SP1 As Float Public SP2 As Float Public SP3 As Float Public IFV As Float Public TFS As Float Public TFR As Float Public TBS As Float Public RHI As Float Page 1 of 4 Program: livework.cr1 Public TAS As Float Public TAO As Float Public TAI As Float Public THWO As Float Public THWI As Float Public WA1 As Float Public WA2 As Float Public WA3 As Float 'Declare Other Variables 'Example: 'Dim Counter Dim Time(9) 'Declare Constants 'Example: 'CONST PI = 'Define Data Tables DataTable (Livework,1,-1) DataInterval (0,15,Min,10)

12 Minimum (1,batt_volt,FP2,0,False) Sample (1,PTemp,FP2) Average (1,TFS,ieee4,False) Average (1,TFR,ieee4,False) Average (1,TBS,ieee4,False) Average (1,TAS,ieee4,False) Average (1,TAO,ieee4,False) Average (1,TAI,ieee4,False) Average (1,THWO,ieee4,False) Average (1,THWI,ieee4,False) Average (1,SP1,IEEE4,False) Average (1,SP2,IEEE4,False) Average (1,SP3,IEEE4,False) Average (1,SPW,IEEE4,False) Average (1,IFV,IEEE4,False) Average (1,RHI,IEEE4,False) Totalize (1,FHW,IEEE4,False) Totalize (1,FR,IEEE4,False) Totalize (1,FG,IEEE4,False) Totalize (1,WTI,IEEE4,False) Totalize (1,WTE,IEEE4,False) Totalize (1,WBI,IEEE4,False) Sample (1,FHW_ACC,IEEE4) Sample (1,FR_ACC,IEEE4) Sample (1,FG_ACC,IEEE4) Sample (1,WTI_ACC,IEEE4) Sample (1,WTE_ACC,IEEE4) Sample (1,WBI_ACC,IEEE4) Sample (1,WA1_ACC,IEEE4) Sample (1,WA2_ACC,IEEE4) Sample (1,WA3_ACC,IEEE4) TableFile ("USR:Livework",8,filelimit,1,24,Hr,OutStat,LastFileName) EndTable 'Define Subroutines 'Sub Page 2 of 4 Program: livework.cr1 'EnterSub instructions here 'EndSub 'Main Program BeginProg SetStatus ("USRDriveSize",size_per_file*filelimit) Scan (1,Sec,0,0) PanelTemp (PTemp,250) Battery (batt_volt) 'Enter other measurement instructions TCSe(TFS,1,mv7_5c,1,TypeT,PTemp,True,0,_60Hz,1.8,32) TCSe(TFR,1,mv7_5c,2,TypeT,PTemp,True,0,_60Hz,1.8,32) TCSe(TBS,1,mv7_5c,3,TypeT,PTemp,True,0,_60Hz,1.8,32) TCSe(TAS,1,mv7_5c,4,TypeT,PTemp,True,0,_60Hz,1.8,32) TCSe(TAO,1,mv7_5c,5,TypeT,PTemp,True,0,_60Hz,1.8,32) TCSe(TAI,1,mv7_5c,6,TypeT,PTemp,True,0,_60Hz,1.8,32) TCSe(THWO,1,mv7_5c,7,TypeT,PTemp,True,0,_60Hz,1.8,32) TCSe(THWI,1,mv7_5c,8,TypeT,PTemp,True,0,_60Hz,1.8,32) VoltSe (IFV,1,mv2500C,9,1,0,_60Hz,.01875,-7.5) '4-20 output, 0-30 range, 100ohm VoltSe (RHI,1,mv2500C,11,1,0,_60Hz,.0625,-25.0) '4-20 output, range, 100ohm If RHI>100 AND RHI<108 Then RHI=100 ExciteV (Vx2,1000,0) VoltSe (SP1,1,mv2500C,12,1,0,_60Hz,1.0,0) VoltSe (SP2,1,mv2500C,13,1,0,_60Hz,1.0,0) VoltSe (SP3,1,mv2500C,14,1,0,_60Hz,1.0,0) VoltSe (SPW,1,mv2500C,15,1,0,_60Hz,1.0,0) If SP1>CurrentThreshold Then SP1=15 Else SP1=0 EndIf If SP2>CurrentThreshold Then SP2=15 Else SP2=0

13 EndIf If SP3>CurrentThreshold Then SP3=15 Else SP3=0 EndIf If SPW>CurrentThreshold Then SPW=15 Else SPW=0 EndIf PulseCount (FHW,1,2,0,0, ,0) PulseCount (FR,1,1,0,0, ,0) PulseCount (FG,1,11,0,0,.25,0) 'multiplier is 2 pulses / revolution, 1 revolutio PulseCount (WTI,1,12,2,0,.0025,0) '100 amp ct, 2.5wh/pulse /1000 PulseCount (WTE,1,13,2,0,.0025,0) PulseCount (WA1,1,14,2,0,.00025,0) '30 amp ct,.25wh/pulse /1000 PulseCount (WA2,1,15,2,0,.00025,0) PulseCount (WBI,1,16,2,0,.00025,0) PulseCount (WA3,1,17,2,0,.00025,0) FHW_ACC = FHW_ACC + FHW FR_ACC = FR_ACC + FR FG_ACC = FG_ACC + FG WTI_ACC = WTI_ACC + WTI WTE_ACC = WTE_ACC + WTE Page 3 of 4 Program: livework.cr1 WBI_ACC = WBI_ACC + WBI WA1_ACC = WA1_ACC + WA1 WA2_ACC = WA2_ACC + WA2 WA3_ACC = WA3_ACC + WA3 'Call Output Tables 'Example: CallTable Livework 'This is the logic which handles the sending of all the data files on the logger. 'The number of files sent is determined by the filelimit constant If OutStat = -1 Then 'Realtime is used to timestamp the file name RealTime(Time) NewFileName = "USR:" & Time(1) & "_" & Time(2)& "_" & Time(3) & "_" & Replace(LastFileNam Renamecheck = FileRename (LastFileName,NewFileName) filecheck = FileList("USR",Filenames) If filecheck > 0 Then For fileloop = 1 To filelimit 'Defines where the file will be saved on the server and its name, the timestamp shoul 'The path can be set by the constant Fdir. pfname = Fdir & Replace(Filenames(fileloop),"USR:","") ftpresult = FTPClient (" ","cdhenrgy","74%oyz",Filenames(fileloop),pfnam Next fileloop EndIf EndIf NextScan EndProg Page 4 of 4 Program: livework.cr1 Notes: Cambell datalogger is uploads data every night and it uploads to /storage/Campbell_ftp or cdhenergy.com/storage/campbell_ftp. The K factor used by the website in the QR equation for a 20% glycol solution is This number was taken from the National Grid Victory site spreadsheet for calculating K values.