Refrigeration load estimate form (for rooms above 32ºf) bulletin above32-05
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Publicado: 24 de noviembre de 2010
Refrigeration Load Estimate Form (for rooms above 32ºF) Bulletin Above32-05
Estimate for: Estimate by: Date:
Basis for Estimate Room Dimensions: Width ft. x Length ft. x Height Volume: (L) x (W) x (H) = Ambient Temp ºF. (Corrected for sun load) — Room Temp
ft. cu. ft. ºF. =
Note: Tables can be found in Engineering Manual, H-ENG-2
ºF.
T.D.
Insulation Inches Ceiling Walls FloorType
Product Load (a) temp. of (b) temp. of
lbs./day of ºF. to lbs./day of ºF. to
to be reduced from entering ºF. Temp. Drop ºF. to be reduced from entering ºF. Temp. Drop ºF.
Miscellaneous Motors (including all blower motors) Lights (assume 1 watt/sq.ft.) No. of people 1. Transmission Loads Ceiling: (L) North Wall: (L) South Wall: (L) East Wall: (L) West Wall: (L) Floor: (L) 2. AirChange Load Volume: 3. Additional Loads Electrical Motors: Electrical Lights: People Load: Glass Door Load:
HP Watts
Ground Temp.
(Table 21)
x (W) x (W) x (W) x (W) x (W) x (W)
x Heat Load x Heat Load x Heat Load x Heat Load x Heat Load x Heat Load
(Table 1) (Table 1) (Table 1) (Table 1) (Table 1) (Table 1)
= = = = = =
cu. ft. x
Factor (Table 4) x
Factor (Table 6)
=HP x 75000 BTU/HP/24 hr. Watts x 82 People x BTU/24 hrs. (Table 12) Doors x 19200 BTU/Door/24 hr.
= = = =
4. Product Load: Sensible (Product Load Figured @ 24 hr. Pulldown*) (a) lbs./day x Spec. Heat (Table 7) x ºF. Temp Drop (b) lbs./day x Spec. Heat (Table 7) x ºF. Temp Drop *For product pulldown time other than 24 hrs. figure 24 hr. load x (24/Pulldown Time) 5. Product Load:Respiration* (a) lbs. stored x BTU/lbs./24 hrs. (Table 8) (b) lbs. stored x BTU/lbs./24 hrs. (Table 8) *For consideration of previously loaded product, a multiplier of (5) is normally applied to the daily product load (Line #4) Total Refrigeration Load (1+2+3+4+5) BTU/24 hrs. Add 10% Safety Factor Total with Safety/Factor BTU/24 hrs. Divide by No. of Operating Hrs. (16) to obtain BTUH Cooling RequirementCondensing Unit Qty. Model No. Equipment Selection Unit Cooler Qty. Model No. System Capacity BTU/hr.
= =
= =
2175 West Park Place Blvd. • Stone Mountain, GA 30087 • 770.465.5600 • Fax: 770.465.5990 • www.heatcraftrpd.com
Quick Selection Guide
Floor Sq. Ft. 36 48 60 64 80 96 112 128 144 160 176 192 208 224 240 256 100 120 140 160 180 200 240 280 144 168 192 216 240 264 196 224 280 336256 320 374 324 360 432 400 480 560 640 720 800 960 1120 1280 1440 1600 +35 Room Usage Avg. Heavy 4750 5417 6055 6188 6954 7669 8366 9051 9748 10419 11540 12224 12874 13519 14187 14824 7789 8626 9439 10250 11049 11838 13391 14891 10038 10956 11886 12775 13681 14549 11993 13013 15011 16969 14148 16349 18506 16476 18128 20484 19470 21988 24963 27480 29946 32420 38694 43183 48550 54344 58738 6389 72748100 8291 9269 10174 11045 11888 12732 13548 14807 15622 16398 17163 17947 18694 10339 11385 12384 13379 14349 15299 17180 18922 13021 14155 15284 16359 17440 18474 15423 16656 19042 21347 18019 20631 23157 20782 22644 25389 24145 27132 30480 33340 36127 38904 45735 50733 56318 62804 67611 BTUH Load +30 Room Usage Avg. Heavy 4488 5119 5722 5848 6572 7247 7905 8553 9212 9846 10905 11522 1216612775 13407 14009 7361 8152 8920 9686 10441 11187 12654 14072 9486 10353 11232 12072 12928 13749 11333 12297 14185 16036 13370 15450 17488 15570 17131 19357 18340 20779 23590 25969 28299 30637 36565 40808 45880 51355 55507 6037 6974 7655 7835 8759 9614 10437 11234 12032 12803 13992 14763 15496 16219 16960 17666 9770 10759 11703 12643 13560 14458 16207 17881 12305 13376 14443 15459 16481 17458 1457515740 17795 21073 17028 19496 21883 19639 21398 23993 22817 25640 28804 31506 34140 36764 46878 48970 55056 61626 66608 0 Room Usage Avg. Heavy 4583 5225 5806 5934 6631 7273 7922 8528 9169 9755 10817 11386 11976 12530 13108 13653 7386 8138 8887 9577 10279 10942 12751 14043 8991 10235 11029 11807 12573 13299 11126 11995 13687 15330 12939 14777 16563 14864 16305 18260 17386 19453 21963 23954 25919...
Estimate for: Estimate by: Date:
Basis for Estimate Room Dimensions: Width ft. x Length ft. x Height Volume: (L) x (W) x (H) = Ambient Temp ºF. (Corrected for sun load) — Room Temp
ft. cu. ft. ºF. =
Note: Tables can be found in Engineering Manual, H-ENG-2
ºF.
T.D.
Insulation Inches Ceiling Walls FloorType
Product Load (a) temp. of (b) temp. of
lbs./day of ºF. to lbs./day of ºF. to
to be reduced from entering ºF. Temp. Drop ºF. to be reduced from entering ºF. Temp. Drop ºF.
Miscellaneous Motors (including all blower motors) Lights (assume 1 watt/sq.ft.) No. of people 1. Transmission Loads Ceiling: (L) North Wall: (L) South Wall: (L) East Wall: (L) West Wall: (L) Floor: (L) 2. AirChange Load Volume: 3. Additional Loads Electrical Motors: Electrical Lights: People Load: Glass Door Load:
HP Watts
Ground Temp.
(Table 21)
x (W) x (W) x (W) x (W) x (W) x (W)
x Heat Load x Heat Load x Heat Load x Heat Load x Heat Load x Heat Load
(Table 1) (Table 1) (Table 1) (Table 1) (Table 1) (Table 1)
= = = = = =
cu. ft. x
Factor (Table 4) x
Factor (Table 6)
=HP x 75000 BTU/HP/24 hr. Watts x 82 People x BTU/24 hrs. (Table 12) Doors x 19200 BTU/Door/24 hr.
= = = =
4. Product Load: Sensible (Product Load Figured @ 24 hr. Pulldown*) (a) lbs./day x Spec. Heat (Table 7) x ºF. Temp Drop (b) lbs./day x Spec. Heat (Table 7) x ºF. Temp Drop *For product pulldown time other than 24 hrs. figure 24 hr. load x (24/Pulldown Time) 5. Product Load:Respiration* (a) lbs. stored x BTU/lbs./24 hrs. (Table 8) (b) lbs. stored x BTU/lbs./24 hrs. (Table 8) *For consideration of previously loaded product, a multiplier of (5) is normally applied to the daily product load (Line #4) Total Refrigeration Load (1+2+3+4+5) BTU/24 hrs. Add 10% Safety Factor Total with Safety/Factor BTU/24 hrs. Divide by No. of Operating Hrs. (16) to obtain BTUH Cooling RequirementCondensing Unit Qty. Model No. Equipment Selection Unit Cooler Qty. Model No. System Capacity BTU/hr.
= =
= =
2175 West Park Place Blvd. • Stone Mountain, GA 30087 • 770.465.5600 • Fax: 770.465.5990 • www.heatcraftrpd.com
Quick Selection Guide
Floor Sq. Ft. 36 48 60 64 80 96 112 128 144 160 176 192 208 224 240 256 100 120 140 160 180 200 240 280 144 168 192 216 240 264 196 224 280 336256 320 374 324 360 432 400 480 560 640 720 800 960 1120 1280 1440 1600 +35 Room Usage Avg. Heavy 4750 5417 6055 6188 6954 7669 8366 9051 9748 10419 11540 12224 12874 13519 14187 14824 7789 8626 9439 10250 11049 11838 13391 14891 10038 10956 11886 12775 13681 14549 11993 13013 15011 16969 14148 16349 18506 16476 18128 20484 19470 21988 24963 27480 29946 32420 38694 43183 48550 54344 58738 6389 72748100 8291 9269 10174 11045 11888 12732 13548 14807 15622 16398 17163 17947 18694 10339 11385 12384 13379 14349 15299 17180 18922 13021 14155 15284 16359 17440 18474 15423 16656 19042 21347 18019 20631 23157 20782 22644 25389 24145 27132 30480 33340 36127 38904 45735 50733 56318 62804 67611 BTUH Load +30 Room Usage Avg. Heavy 4488 5119 5722 5848 6572 7247 7905 8553 9212 9846 10905 11522 1216612775 13407 14009 7361 8152 8920 9686 10441 11187 12654 14072 9486 10353 11232 12072 12928 13749 11333 12297 14185 16036 13370 15450 17488 15570 17131 19357 18340 20779 23590 25969 28299 30637 36565 40808 45880 51355 55507 6037 6974 7655 7835 8759 9614 10437 11234 12032 12803 13992 14763 15496 16219 16960 17666 9770 10759 11703 12643 13560 14458 16207 17881 12305 13376 14443 15459 16481 17458 1457515740 17795 21073 17028 19496 21883 19639 21398 23993 22817 25640 28804 31506 34140 36764 46878 48970 55056 61626 66608 0 Room Usage Avg. Heavy 4583 5225 5806 5934 6631 7273 7922 8528 9169 9755 10817 11386 11976 12530 13108 13653 7386 8138 8887 9577 10279 10942 12751 14043 8991 10235 11029 11807 12573 13299 11126 11995 13687 15330 12939 14777 16563 14864 16305 18260 17386 19453 21963 23954 25919...
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