Heatcraft Refrigeration Products H-ENGM0806, H-ENGM0408 manual

Table 9
Heat Loads of Keg and Bottled Beer						(BTU / 24 HR)
Type and Size		Temperature Reduction of Beer only. ºF.
of Container		60	50	40	30		20	15			10	5
Wood
One Keg		—	—	12000	9000		6000	4500			3000	1500
Half Keg		—	—	5600	4650		3100	2325			1550	775
Quarter Keg		—	—	3200	2400		1600	1200			800	400
Eighth Keg		—	—	1640	1230		820	615			410	205
Aluminum
Half Keg		—	—	5200	3900		2600	1950			1300	650
Quarter Keg		—	—	2560	1920		1280	960			640	320
Eighth Keg		—	—	1400	1050		700	525			350	175
Steel
Half Keg		—	—	4800	3600		2600	1800			1200	600
Quarter Keg		—	—	2400	1800		1200	900			600	300
Bottles
6 oz.		32	27	22	16		10.8	8.1			5.4	2.7
7 oz.		37	31	25	20		124	9.3			6.2	3.1
8 oz.		42	35	28	21		14.0	10.5			7.0	3.5
9 oz.		47	38	30	23		15.2	11.4			76	3.8
12 oz.		60	50	40	30		20	15			10	5.0
Cases of 24 - 12 oz.
Bottles/Cans		1920	1600	1280	960		640	480			320	160
Table 10
Carcass Weight
	Average					Entering					Final
	Weight		Specific			Carcass					Carcass
Carcass	lbs.		Heat			Temp. ºF.					Temp. ºF.
Cattle	550		0.77				106			35
Calves	150		0.76				104			35
Sheep	45		0.76				101			33
Hogs	180		0.54				106			35
Table 11
Heat equivalent of electric motors
				BTU per (HP) (HR)
					Motor				Connected
	Connected				Losses						Load
Motor	Load In				Outside					Outside
HP	Refr Space1			Refr Space2					Refr Space3
1/8 to 1/2	4,250				2,545					1,700
1/2 to 3	3,700				2,545					1,150
3 to 20	2,950				2,545					400

1For use when both useful output and motor losses are dissipated within refrigerator space: motors driving fans for forced circulation unit coolers.

2For use when motor losses are dissipated outside refrigerated space and useful work of motor is expended within refrigerated space: pump on a circulating brine or chilled water system, fan motor out- side refrigerated space driving fan circulating air within refrigerated space.

3For use when motor heat losses are dissipated within refrigerated space and useful work expended outside of refrigerated space: motor in refrigerated space driving pump or fan located outside of space.

Table 12

Heat equivalent of Occupancy

Cooler	Heat Equivalent / Person
Temperature ºF.	BTU / 24 Hrs.
50	17,280
40	20,160
30	22,800
20	25,200
10	28,800
0	31,200
-10	33,600

Table 13

General standard for insulation thickness in storage rooms

Storage		Desirable Insulation
Temperature		Thickness in Inches
ºF.	ºC.	Styrofoam	Urethane
-50º to -25º	-45º to -32º	8	6
-25º to -0º	-32º to -18º	6	4
0º to 25º	-18º to -4º	4	4
25º to 40º	-4º to 5º	4	3 - 4
40º and up	+5º and up	2	2

Table 14

Heat gain due to operation of battery operated lift truck

Battery	Heat Gain	Approximate
operated	per hour of	total weight
load capacity	truck operation	of lift truck
lb.	BTU / hr.*	lb.
2,000	14,000	6,000
4,000	21,000	8,000
6,000	23,000	12,000
8,000	26,000	14,000

*Heat gain from lift trucks with internal combustion engines can be approximated by multiplying the engine horsepower by 2,545 by the number of hours of operation (BTU/24 Hrs.)

Table 15

Specific heats of various liquids and solids

	Specific	Heat
Name	BTU/lb./ºF.	Temp ºF.
Liquids
Acetic Acid	0.522	79 - 203
Alcohol-Ethyl	0.680	32 - 208
Alcohol-Methyl	0.610	59 - 68
Calcium Chloride
Brine (20% by wt.)	0.744	68
Carbon
Tetrachloride	0.201	68
Chloroform	0.234	68
Gasoline	0.500	32 - 212
Glycerine	0.575	59 - 120
Olive Oil	0.471	44
Toluene	0.404	68
Turpentine	0.420	68
Solids
Aluminum	0.214	—
Asphalt	0.220	—
Bakelite	0.350	—
Brickwork	0.200	—
Brass	0.090	—
Bronze	0.104	—
Concrete	0.156	—
Glass	0.200	—
Ice	0.465	-4
Ice	0.487	32
Iron (Cast)	0.120	—
Lead	0.031	—
Paper	0.320	—
Porcelain	0.180	—
Rubber Goods	0.480	—
Sand	0.191	—
Steel	0.120	—
Woods
Fir0.650	—
Oak	0.570	—
Pine	0.670	—

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