Rule 6-1 Update: Plenum, crawl-space, interstitial, NONE

docs/ashrae_90p1_2019/section6/Rule6-1.md

@@ -1,4 +1,3 @@
-
 # Lighting - Rule 6-1
 
 **Rule ID:** 6-1  
@@ -10,27 +9,43 @@
 - Table G3.7, Performance Rating Method Lighting Power Density Allowances and Occupancy Sensor Reductions Using the Space-by-Space Method
 - Table G3.8, Performance Rating Method Lighting Power Densities Using the Building Area Method  
 
-**Applicability:** All required data elements exist for P_RMR  
+**Applicability:** All required data elements exist for P_RMD  
 **Manual Check:** Yes  
-**Evaluation Context:** Each Data Element  
+**Evaluation Context:** Each BuildingSegment  
 **Data Lookup:** Table G3.7 and Table G3.8  
 **Function Call:** None
 
 ## Rule Logic:
 
-- For each building segment in the Proposed Model: `building_segment_p in P_RMR.building.building_segments`  
+- For each building segment in the Proposed Model: `building_segment_p in P_RMD.building.building_segments`  
+
+  - Initialize a variable to track if any space in the building segment is a crawl space, interstitial space, or plenum with lighting: `has_crawl_interstitial_plenum_with_lighting = FALSE`
 
-  - If building segment specifies lighting building area type, get the allowable lighting power density from Table G3-8: `if building_segment_p.lighting_building_area_type in table_G3_8: allowable_LPD_BAM = data_lookup(table_G3_8, building_segment_p.lighting_building_area_type)`  
+  - Initialize a variable to track if any space does not specify lighting space type: `check_BAM_flag = FALSE`
+
+- If building segment specifies lighting building area type, get the allowable lighting power density from Table G3-8: `if building_segment_p.lighting_building_area_type in table_G3_8: allowable_LPD_BAM = data_lookup(table_G3_8, building_segment_p.lighting_building_area_type)`  
 
   - For each thermal block in building segment: `thermal_block_p in building_segment_p.thermal_blocks:`  
 
     - For each zone in thermal block: `zone_p in thermal_block_p.zones:`  
 
       - For each space in zone: `space_p in zone_p.spaces:`  
+
+        - Get the space total interior lighting power density: `space_total_LPD_p = sum(interior_lighting.power_per_area for interior_lighting in space_p.interior_lighting)`
+
+        - Add lighting power to building segment total: `building_segment_design_lighting_wattage += (space_total_LPD_p * space_p.floor_area)`  
 
-        - For each interior lighting in space, add lighting power to building segment total: `building_segment_design_lighting_wattage += sum(interior_lighting.power_per_area for interior_lighting in space_p.interior_lighting) * space_p.floor_area`  
+        - Check if the space is a crawl space, interstitial space, or plenum: `if space_p.function in [CRAWL_SPACE, INTERSTITIAL_SPACE, PLENUM]:`
+
+          - If the space has interior lighting, set flag to TRUE: `if space_total_LPD_p > 0: has_crawl_interstitial_plenum_with_lighting = TRUE`
+
+          - Continue to the next space, to take a conservative approach and avoid increasing the allowable lighting wattage for these spaces: `continue`
 
-        - If building segment specifies lighting building area type , add space floor area to the total building segment floor area: `if allowable_LPD_BAM: total_building_segment_area_p += space_p.floor_area`  
+        - If lighting space type is explicitly NONE (unoccupiable space such as elevator or mechanical shaft): `if space_p.lighting_space_type == NONE:`
+
+          - Exclude the space from both BAM and SBS allowance calculations and do not set check_BAM_flag: `continue`
+
+        - If building segment specifies lighting building area type, add space floor area to the total building segment floor area: `if allowable_LPD_BAM: total_building_segment_area_p += space_p.floor_area`  
 
         - Check if any space does not specify lighting space type, flag for Building Area Method: `if NOT space_p.lighting_space_type: check_BAM_flag = TRUE`  
 
@@ -40,32 +55,44 @@
 
 **Rule Assertion:**
 
-- Case 1: For each building segment, if both lighting building area type and lighting space type in all spaces are specified, and the total lighting power in P_RMR is less than or equal to the higher of the Building Area Method and Space-by-Space Method allowances: `if ( allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage <= max(allowable_LPD_BAM * total_building_segment_area_p, allowable_lighting_wattage_SBS) ): PASS`  
-
-- Case 2: Else if both lighting building area type and lighting space type in all spaces are specified, and the total lighting power in P_RMR is more than the higher of the Building Area Method and Space-by-Space Method allowances: `else if ( allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage > max(allowable_LPD_BAM * total_building_segment_area_p, allowable_lighting_wattage_SBS) ): FAIL`  
-
-- Case 3: Else if lighting building area type is not specified, and lighting space type in all spaces are specified, and the total lighting power in P_RMR is less than or equal to the Space-by-Space Method allowance: `else if ( NOT allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage <= allowable_lighting_wattage_SBS ): PASS and raise_warning 'PROJECT PASSES BASED ON SPACE-BY-SPACE METHOD. VERIFY IF PROJECT USES SPACE-BY-SPACE METHOD.'`  
-
-- Case 4: Else if lighting building area type is not specified, and lighting space type in all spaces are specified, and the total lighting power in P_RMR is more than the Space-by-Space Method allowance: `else if ( NOT allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage > allowable_lighting_wattage_SBS ): FAIL and raise_warning 'PROJECT FAILS BASED ON SPACE-BY-SPACE METHOD. LIGHTING_BUILDING_AREA_TYPE IS NOT KNOWN TO DETERMINE BUILDING AREA METHOD ALLOWANCE.'`  
-
-- Case 5: Else if lighting building area type is specified, and lighting space type is not specified in all spaces, and the total lighting power in P_RMR is less than or equal to Building Area Method allowance: `else if ( allowable_LPD_BAM ) and ( check_BAM_flag ) and ( building_segment_design_lighting_wattage <= allowable_LPD_BAM * total_building_segment_area_p ): PASS and raise_warning 'PROJECT PASSES BASED ON BUILDING AREA METHOD. VERIFY IF PROJECT USES BUILDING AREA METHOD.'`  
-
-- Case 6: Else if lighting building area type is specified, and lighting space type is not specified in all spaces, and the total lighting power in P_RMR is more than Building Area Method allowance: `else if ( allowable_LPD_BAM ) and ( check_BAM_flag ) and ( building_segment_design_lighting_wattage > allowable_LPD_BAM * total_building_segment_area_p ): FAIL and raise_warning 'PROJECT FAILS BASED ON BUILDING AREA METHOD. LIGHTING_SPACE_TYPE IS NOT KNOWN IN ALL SPACES TO DETERMINE SPACE-BY-SPACE METHOD ALLOWANCE.'`  
-
-- Case 7: Else, lighting building area type is not specified, and lighting space type is not specified in all spaces: `Else: FAIL and raise_warning 'LIGHTING_BUILDING_AREA_TYPE IS NOT KNOWN AND LIGHTING_SPACE_TYPE IS NOT KNOWN IN ALL SPACES TO DETERMINE ALLOWANCE.'`  
-
-**Notes Before Update for Reference Only:**
-Updated the Rule ID from 6-2 to 6-1 on 6/8/2022
-
-The RDS needs to be updated in the future based on the following:
-- If lighting_building_area_type and lighting_space_type are know known, then calculate allowance based on both, pass if less than max  
-
-- If lighting_building_area_type is not specified, lighting_space_type for all spaces in the building segment is included: then determine allowance based on lighting space type.  
-    - If PASS- Output should say that project passed based on space by space method. Reviewer should verify if the project uses space by space method.  
-    - If FAIL- then CAUTION and say that it fails space by space method and lighting_building_area_type is not known to determine allowance based on BAT.  
-
-- If lighting_building_area_type provided but lighting_space_type not included:   
-    - If PASS - Output should say that project passed based on building area method. Reviewer should verify if the project uses building area method.
-    - If FAIL- then CAUTION and say that it fails building area method and lighting_space_type is not known to determine allowance based on space by sspace method.    
+- Case 1: For each building segment, if both lighting building area type and lighting space type in all applicable spaces are specified, and the total lighting power in P_RMD is less than or equal to the higher of the building area method and space-by-space method allowances:  
+  `if ( allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage <= max(allowable_LPD_BAM * total_building_segment_area_p, allowable_lighting_wattage_SBS) ): PASS`  
+
+- Case 2: Else if both lighting building area type and lighting space type in all applicable spaces are specified, and the total lighting power in P_RMD is more than the higher of the building area method and space-by-space method allowances:  
+  `else if ( allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage > max(allowable_LPD_BAM * total_building_segment_area_p, allowable_lighting_wattage_SBS) ):`  
+    - If `has_crawl_interstitial_plenum_with_lighting`:  
+      `UNDETERMINED and raise_message "the model included at least one plenum, crawlspace, or interstitial space with lighting power modeled. unable to determine whether these spaces should be included in the check."`  
+    - Else:  
+      `FAIL`  
+
+- Case 3: Else if lighting building area type is not specified, and lighting space type in all applicable spaces are specified, and the total lighting power in P_RMD is less than or equal to the space-by-space method allowance:  
+  `else if ( NOT allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage <= allowable_lighting_wattage_SBS ): PASS`  
+
+- Case 4: Else if lighting building area type is not specified, and lighting space type in all applicable spaces are specified, and the total lighting power in P_RMD is more than the space-by-space method allowance:  
+  `else if ( NOT allowable_LPD_BAM ) and ( NOT check_BAM_flag ) and ( building_segment_design_lighting_wattage > allowable_lighting_wattage_SBS ):`  
+    - If `has_crawl_interstitial_plenum_with_lighting`:  
+      `UNDETERMINED and raise_message "the model included at least one plenum, crawlspace, or interstitial space with lighting power modeled. unable to determine whether these spaces should be included in the check."`  
+    - Else:  
+      `UNDETERMINED and raise_message 'project fails based on space-by-space method. lighting_building_area_type is not known to determine building area method allowance.'`  
+
+- Case 5: Else if lighting building area type is specified, and lighting space type is not specified in all applicable spaces, and the total lighting power in P_RMD is less than or equal to building area method allowance:  
+  `else if ( allowable_LPD_BAM ) and ( check_BAM_flag ) and ( building_segment_design_lighting_wattage <= allowable_LPD_BAM * total_building_segment_area_p ): PASS`  
+
+- Case 6: Else if lighting building area type is specified, and lighting space type is not specified in all applicable spaces, and the total lighting power in P_RMD is more than building area method allowance:  
+  `else if ( allowable_LPD_BAM ) and ( check_BAM_flag ) and ( building_segment_design_lighting_wattage > allowable_LPD_BAM * total_building_segment_area_p ):`  
+    - If `has_crawl_interstitial_plenum_with_lighting`:  
+      `UNDETERMINED and raise_message "the model included at least one plenum, crawlspace, or interstitial space with lighting power modeled. unable to determine whether these spaces should be included in the check."`  
+    - Else:  
+      `UNDETERMINED and raise_message 'project fails based on building area method. lighting_space_type is not known in all spaces to determine space-by-space method allowance.'`  
+
+- Case 7: Else, lighting building area type is not specified, and lighting space type is not specified in all applicable spaces:  
+  `Else:`  
+    - If `has_crawl_interstitial_plenum_with_lighting`:  
+      `UNDETERMINED and raise_message "the model included at least one plenum, crawlspace, or interstitial space with lighting power modeled. unable to determine whether these spaces should be included in the check."`  
+    - Else:  
+      `UNDETERMINED and raise_message 'lighting_building_area_type is not known and lighting_space_type is not known in all spaces to determine allowance.'`  
+
+**Notes:**
+- Updated the Rule ID from 6-2 to 6-1 on 6/8/2022  
 
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rct229/rulesets/ashrae9012019/data/ashrae_90_1_prm_2019.prm_interior_lighting.json

@@ -1832,6 +1832,19 @@
       "occup_sensor_auto_on_svgs": 0.1,
       "occup_sensor_savings": 0.125,
       "notes": null
+    },
+    {
+      "template": "90.1-PRM-2019",
+      "lpd_space_type": "none",
+      "primary_space_type": "none",
+      "secondary_space_type": "none",
+      "w/ft^2": 0,
+      "w/ft": null,
+      "isresidential": 0,
+      "manon_or_partauto": 0,
+      "occup_sensor_auto_on_svgs": 0,
+      "occup_sensor_savings": 0,
+      "notes": null
     }
   ]
 }

rct229/rulesets/ashrae9012019/data_fns/table_9_6_1_fns_test.py

@@ -133,5 +133,6 @@ def test__building_type_enumeration_to_lpd_map():
             "TRANSPORTATION_FACILITY_TICKET_COUNTER",
             "WAREHOUSE_STORAGE_AREA_MEDIUM_TO_BULKY_PALLETIZED_ITEMS",
             "WAREHOUSE_STORAGE_AREA_SMALLER_HAND_CARRIED_ITEMS",
+            "NONE",
         ],
     )

rct229/rulesets/ashrae9012019/data_fns/table_G3_7_fns.py

@@ -112,6 +112,7 @@
     "TRANSPORTATION_FACILITY_TICKET_COUNTER": "transportation ticket counter",
     "WAREHOUSE_STORAGE_AREA_MEDIUM_TO_BULKY_PALLETIZED_ITEMS": "warehouse - bulk storage",
     "WAREHOUSE_STORAGE_AREA_SMALLER_HAND_CARRIED_ITEMS": "warehouse - fine storage",
+    "NONE": "none",
 }
 
 FULL_AUTO_ON = SchemaEnums.schema_enums["LightingOccupancyControlOptions"].FULL_AUTO_ON