How to calculate the volume of pipeline insulation material

(pipe diameter + wall thickness) × wall thickness × 3.14

Calculate the volume of pipeline insulation material. The insulation material is rubber shell
The insulation thickness of water supply pipe is 50 mm, that of indoor open drainage pipe is 50 mm, and the insulation layer is wrapped with aluminum foil tape

3.14 * [(square of pipe outer diameter + insulation thickness) - square of pipe outer diameter] * length = volume

I want to know the calculation of external wall insulation material, such as how much insulation material is needed for a square meter, and the unit price of insulation material on the market
How to calculate with polystyrene particles? Please help me to calculate again

You said the amount of analysis: first look at the design, take the thin plastering system as an example, the design is 50 energy-saving or 65 energy-saving, which involves the thickness of the insulation board. For example, 65 energy-saving with extruded board is generally about 5-6cm. Then look at the insulation after the finishing layer, is it paint or ceramic tile, or other materials, 5 cm thick plate to illustrate the amount of insulation material: plate amount: 0.05m & sup3; (excluding loss, loss is generally calculated by 5% - 10%, that is, the amount is 0.0525-0.055m & sup3;); bonding mortar: 4.5-5kg; plastering mortar: 4.5-5.5kg; mesh cloth: 1.3m2, anchor bolt: 6-7
As for the price you mentioned, there is a big difference in the market. For the good extruded board, it costs 1500-800 yuan / M & sup3;, for the poor, it costs about 300 yuan, and for the mid-range flame retardant board, it costs more than 500 yuan
Mortar price difference is also very big, generally around 1300 a ton, better in more than 1800, better to more than 2200. Poor also have less than 1000. Other accessories are almost the same
The formula of polystyrene particles is as follows: first of all, the ratio is generally 6 bags of particles mixed with a bag of rubber powder. Some manufacturers have different ratios. Generally, it is calculated by cubic meter. For example, a cubic meter of rubber powder particles is 500 yuan, 4 cm thick, the dosage is 0.04m & sup3; and the price is 20 yuan per square meter. Generally, the rubber powder particles are about 500 yuan / M & sup3. Good ones are more expensive

In order to know the circumference of a cylinder is 44.3m, add 7cm insulation material outside the cylinder, and calculate the area
That is to say, how many squares of the surface area of a cylinder can be obtained by adding 7 cm to its radius

The radius of the bottom of the cylinder is 44.3 △ 3.14 △ 2 = 7.05m without thermal insulation material. The radius of the bottom increases to 7.05 + 0.07 = 7.12m and the height increases to 14 + 0.07 × 2 = 14.14m with thermal insulation material. Therefore, the surface area is 3.14 × 7.12 × 7.12 × 2 + 3.14 × 7.12 × 2 × 14.14 = 861.1839m2

Thickness calculation of thermal insulation material
The kind-hearted elder brother helped to solve the problem:
The inner temperature of a pressure vessel is 150 ℃, and how thick insulation layer is needed to ensure that the outer temperature is lower than 50 ℃. The insulation material is E-type glass fiber, and its thermal conductivity is 0.40 w / cm. K. please give the specific calculation formula

If the container is not very small, it is generally considered as a plane. If the temperature is 150 degrees, the single-layer insulation is OK
Thickness = thermal conductivity x (150 ℃ - 50 ℃) / (surface heat release x (50 ℃ - annual average ambient temperature))

How to calculate the volume of a cylinder
How much water can a cylinder with a diameter of 40 cm and a height of 10 cm hold

The calculation method of volume of cylinder is the same as that of volume
How much water can a cylinder with a diameter of 40 cm and a height of 10 cm hold
3.14 × (40 ／ 2) × (40 ／ 2) × 10 = 12560 CC = 12.56 L

What is the volume of a cylinder?

Bottom area times height

Calculation of cylinder volume
2.1 m in diameter
What is the volume of the cylinder

Radius: 2.1 / 2 = 1.05
Volume: 3.14 * 1.05 * 1.05 * 2.45 = 8.4815325 (M3) = 8481532.5 (cm3)

Calculation method for volume of cylinder

Volume = volume, so the calculation formula of volume is base area multiplied by height. I wish you progress in your study

Calculation of cylinder volume
The cylindrical FRP tank is horizontal, 2m in diameter and 5m in length. What is its volume, with unit and detailed calculation program,

Volume = bottom area × height
=3.14×（2÷2）²×5
=3.14×1²×5
=15.7 square meters;
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How to calculate the volume of pipeline insulation material