Energy Conservation Measure

Set Site Water Mains Temperature

Name 
set_site_water_mains_temperature
Display Name 
Set Site Water Mains Temperature
UID
0645d9db-5c9a-4ccc-adcd-922cf6aff5e9

Version ID
58ecdbce-0008-4b07-b87a-049a8b2402f3
Class Name 
SetSiteWaterMainsTemperature
Version Modified 
20190306T143120Z
Schema Version 
3.0
Rating 
5
Average: 5 (1 vote)
Attributes 
Measure TypeModelMeasure
Intended Software ToolApply Measure Now
Intended Software ToolOpenStudio Application
Intended Software ToolParametric Analysis Tool
Intended Use CaseModel Articulation
Intended Use CaseCalibration
Intended Use CaseNew Construction EE
Intended Use CaseRetrofit EE

Details

DescriptionSet the Site:WaterMainsTemperature object to have: - Calculation Method: 'Correlation' or 'Schedule' If Schedule: - user-supplied schedule If 'Correlation': - Annual Average Outdoor Air Temperature (C): user-supplied - Maximum Difference in Monthly Average Outdoor Air Temperature (C): user-supplied There is an Excel spreadsheet in the 'resources' folder to help in caculating the correlation coefficients.
Modeler DescriptionFor the 'Correlation' options, it's easy to calculate those using the .stat file that comes with EPW files. Default values for Correlation are for New York City - JFK Airport. See Engineering Reference Guide, Water Systems - Water Mains Temperature for more info Correlation is based on Craig Christensen and Jay Burch and is described in Hendron et al (2004) http://bigladdersoftware.com/epx/docs/9-0/engineering-reference/water-systems.html#water-mains-temperatures
Content visibility 
Use group defaults
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Measure Arguments

NameDisplay NameShort NameDescriptionUnitsTypeRequiredModel DependentDefault ValueChoicesMin ValueMax Value
calculation_methodCalculation Method---ChoicetruefalseCorrelationSchedule
Correlation
--
temp_schTemperature Schedule Name-Only Schedule Ruleset of Schedule Type Limits 'Temperature' will be listed. Only applies if 'Schedule' is selected above.-Choicefalsefalse----
avg_oa_tempAnnual Average Outdoor Air Temperature (C)-Only used if 'Correlation' is selected above. This is drybulb, easily calculated from .STAT file-Doublefalsefalse12.47---
max_diff_monthly_oa_tempMaximum Difference in Monthly Average Outdoor Air Temperature (C)---Doublefalsefalse25.2---

Measure Outputs