Capacity of ward = 1,750 X 12 = 21,000 cubic feet.
If we allow 120 square feet floor-space for each patient, then the total floor-space will be 1,440 square feet. Consequently the height of the ward = 21000 ∕ 1440 = 14·75 feet.
- Area of circle = D2 x ·7854.
- 1,440 ∕ ·7854 = D2.
- Therefore D = 43·2 feet.
- Circumference of circle = D x 3·1416.
- = 43·2 x 3·1416.
- = 135·7 feet.
The dimensions of the circular ward required are therefore a height of 14·75 feet, diameter of 43·2 feet, and circumference of 135·7 feet.
Find the cubic capacity of a circular hospital ward 28 feet in diameter, 10 feet high, and with a dome-shaped roof 5 feet high.
- Area of floor-space = D2 x ·7854.
- = 614·8 square feet.
- Cubic capacity of the cylinder below the dome is 614·8 x 10 = 6,148 cubic feet.
- Cubic capacity of dome = 614·8 x ⅔ x 5 = 2049·3 cubic feet.
- Total cubic capacity of the ward = 8197·3 cubic feet.
In practical measurements of rooms, deductions must be made from the cubic space for the furniture contained in it and for its inmates. About 10 cubic feet ought to be allowed for each bed and bedding, and 2½ to 4 cubic feet for each individual. Projecting surfaces must be allowed for by subtraction, and recesses by addition.
A circular ward with a diameter of 36 feet has a dome-shaped roof, the height of whose centre is 18 feet. The height to the dome is 12 feet. Find the floor-space and total cubic contents. How many patients ought the ward to accommodate?
- Area of floor-space = (36)2 x ·7854.
- = 1017·8784 square feet.
- Cubic capacity of cylinder below dome = 1017·87 x 12 = 12214·5 cubic feet.
- Cubic capacity of dome = 1017·87 x ⅔ x 6 = 4071·48 cubic feet.
- Total cubic capacity of the ward = 16285·98 cubic feet.
Assuming that 1,500 cubic feet are required for each patient, then the ward is large enough for 10 patients. It is well to test this conclusion by calculating whether sufficient floor-space has been allowed for each patient. The floor-space has been found to be about 1,018 square feet, which would give 100 feet for each of 10 patients and more than the minimum standard previously stated.