Heatcraft Refrigeration Products H-ENGM0806, H-ENGM0408 manual Example 35ºF Beef Cooler

Refrigeration Load Estimate Form

(for rooms above 32ºF) Bulletin Above32-05

Estimate for: Estimate by: Date:

Example: 35ºF Beef Cooler

Basis for Estimate

Room Dimensions: Width

14

Volume: (L) 16

Ambient Temp 95

	16			8
	ft. x Length			ft. x Height
x (W)14	8	x (H)	1792	=

ºF. (Corrected for sun load) — 35Room Temp

	ft.
60	cu. ft.
	ºF. =

Note: Tables can be found in Engineering Manual, H-ENG-2

ºF. T.D.

		Insulation
	Inches	Type
Ceiling	4	Styrene
Walls	4	Styrene
Floor	6	Concrete

Product Load
(a)	1000		lbs./dayBeefof	to be reduced from entering
temp. of		50	ºF.35to	ºF15. Temp. Drop	ºF.
(b)	—		lbs./day—of	to be reduced from entering
temp. of		—	ºF.—to	ºF—. Temp. Drop	ºF.

Miscellaneous

Motors (including all blower motors)0.1 Lights (assume 1 watt/sq.ft.) 224 No. of people 0

HP	60Ground Temp.	(Table 21)
Watts

1. Transmission Loads
Ceiling: (L)16	14x (W)		x87Heat Load	(Table 1)
North Wall: (L)16	x8	(W)(H)	x87Heat Load	(Table 1)
South Wall: (L)16	x8	(W)(H)	x87Heat Load	(Table 1)
East Wall: (W)(L)14	x8	(H)	x87Heat Load	(Table 1)
		(W)
14	8		87
West Wall: (W)(L)	x (W)(H)		x Heat Load	(Table 1)
16	14		125
Floor: (L)	x (W)		x Heat Load	(Table 1)

19488	=
11136	=
11136	=
9744	=
9744	=
28000	=

2. Air Change Load	cu13.	2.49		58007
1792			Factor (Table 6)		=
Volume:	ft. x	Factor (Table 4) x

3.Additional Loads Electrical Motors:0.1 Electrical Lights:224 People Load:0 Glass Door Load:0

HP x 75000 BTU/HP/24 hr. Watts x 82

People— xBTU/24 hrs. (Table 12) Doors x 19200 BTU/Door/24 hr.

7500=

18368 =

—=

—=

4. Product Load: Sensible			(Product Load Figured @ 24 hr. Pulldown*)
(a)	1000	lbs./day x0.77		Spec. Heat (Table15	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)

11550	=
—	=

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.					184673
	Add 10% Safety Factor				18467
	Total with Safety/Factor BTU/24 hrs.				203140
Divide by No. of Operating Hrs. (16) to obtain BTUH Cooling Requirement					12696

		Equipment Selection
Condensing Unit			Unit Cooler	System Capacity
Qty.	Model No.	Qty.	Model No.	BTU/hr.

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