Saturday, March 7, 2009

HANDY FORMULAS

Example –

Hospitality (10,000 lbs. / two 8 hour shifts)
10,000 lbs. divided by 16 hours = 625 lbs per hour
4 / 135 lbs. washers = 540 lbs x 1.25 = 675 lbs / hr. x 16 hrs. =
10,800 lbs.

Healthcare (10,000 lbs. / two 8 hour shifts)
10,000 lbs. divided by 16 hours = 625 lbs. / hr.
5/ 135 lbs. washers = 675 x 1: 1 = 675 lbs / hr. x 16 hours =
10,800 lbs.
Other Calculations
Calculating Cylinder Volume

Cylinder Diameter and Cylinder Depth are both expressed in inches.

Cylinder volume in cubic feet =

(Cylinder Diameter) x (Cylinder Diameter) x (Cylinder Depth)
2,200

Moisture content after extraction

Moisture content is a way of expressing how much water remains in a load of linens after extraction. This is water that must be removed by turning into steam in a drying tumbler or ironer. To calculate moisture content, use this formula:

WAE = weight of load after extraction, in pounds
DRY = weight of load before washing, in pounds

% Moisture Content =

(WAE) – (DRY) x 100
(DRY)

Example: A load of linens weighs 60 pounds before processing. After washing and extracting, the load weighs 90 pounds. The % moisture content would then be:

% Moisture Content =
(90 – 60) x 100
60 = 50%

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