A calculation method of water tank volume

Weigh the jar first, then fill it with water with the density of 1kg/ cubic decimeter, and then weigh the jar and water.

(water quality of water tank-water quality of water tank) ÷ 1= volume of water tank.

The unit is cubic decimeter.

1 cubic decimeter = 1 liter, this is to be calculated by integral, is it a university topic? It can also be calculated by multiplying the bottom area by the height. The algorithm of the bottom area is the area of the sector minus the area of the triangle, and the area of the sector is the angle * r 2/2! Use s = r * r * 3. 14 and v = l * s to calculate.

The internal sectional area s of the pipeline is obtained by multiplying the internal diameter r of the pipeline by 3. 14, and the sectional area s can be obtained by multiplying the length l of the pipeline.

Before calculating the volume of an object, its length, width and height should be measured first. The volume of an object is measured from the outside, but the volume is measured from the inside. A closed object with both volume and volume must be larger than its volume.

Extended data:

The requirements for volume calculation stipulate that:

1, v cuboid =abc (length× width× height) v cube = A 3 (side length× side length× side length); V cylinder =Sh v cone = 1/3sh.

2. Calculate the volume of irregular three-dimensional graphics. You can put this object into the water and use the current volume-the volume of the object that has not been put in is the volume or the height-length * width of the object that has not been put in (1 l = 1 cubic decimeter; 1 ml = 1 cm3). Refers to the proportion of the total construction area within the project land area to the total land area of the project. For developers, the plot ratio determines the proportion of land price cost in housing, while for residents, the plot ratio is directly related to the comfort of living. In a good residential area, the plot ratio of high-rise residential buildings should not exceed 5, that of multi-storey residential buildings should not exceed 2, and that of green space should not be less than 30%. However, due to the limitation of land cost, not all projects can be done. computing formula

Floor area ratio = total construction area/total land area

Total construction area = total construction area above ground-total construction area above ground+special multi-storey construction area.

Life influence

When the building height is more than 8 meters, the floor area of this floor will be doubled when calculating the floor area ratio.

The lower the floor area ratio, the higher the comfort of residents, and vice versa.

The high plot ratio of residential projects means that many houses are built in residential areas, and high-density residential buildings will definitely bring high-density residents, which will eventually lead to the decline of the comfort of residential owners. In addition, high-density residents will also put great pressure on the fitness center, children's activity area, entertainment center, elevator and fire escape in the building. Frequent use will aggravate the aging of these facilities, so higher requirements should be put forward when buying high-density residential areas.