NRCan-IETS-CE-O-HBC / HTAP

NRCan's Ruby scripts for batch analysis and optimization with HOT2000

http://www.nrcan.gc.ca/energy/efficiency/housing/home-improvements/17725

GNU Lesser General Public License v3.0

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Review HP rating temperature #14

Open fergusoa opened 6 years ago

fergusoa commented 6 years ago

HTAP hard-codes the HP rating temperature to -5ºC; which is fine as long as users have provided the corresponding COP. Many may assume that this actually means 8.3ºC - If they provide a higher-than-expected COP, the heat pump model will overpredict performance and underpredict energy use.

To Do:

[ ] Decide what default rating temperature makes most sense
[ ] Review current COP data and determine what values are supposed to be used
[ ] Incorporate MaRS/ICF study changes.

fergusoa commented 6 years ago

Relevant code is found at substutute-h2k.rb ~ around line 2580

CHECK this - should be 8.3 ?

  locationText = "HouseFile/House/HeatingCooling/Type2/AirHeatPump/Temperature/RatingType"
  elements[locationText].attributes["code"] = "1"
  elements[locationText].attributes["value"] = "-5.0"
  elements[locationText].add_element("English")
  elements[locationText].add_element("French")