It is required to calculate the volume, which is usually measured directly or calculated by mass and density.
Find the volume of ice. If it is pure water frozen ice, the general density is 0.8g/cm3. Weigh the ice mass first, and then calculate the volume.
To calculate the volume of table tennis, the diameter of table tennis can be measured and calculated according to the formula of sphere volume V=3πR3/4. You can also put a ping-pong ball in a full cup, gently press it to make it completely immersed in water, and then slowly let the ball float and take it out. According to the weight difference between the full cup and the drained cup, the volume of ping-pong ball can be calculated (due to the surface tension of water and the ball getting wet, this method has a big error).
Question 2: How to measure the volume of ice cubes? Use a container full of water, put the ice cubes in, pour the water out and pour it into a measuring cup, and convert it into units.
Question 3: How to find the volume of ice by drainage method? You can calculate the standard table tennis volume. The diameter of standard table tennis is 40mm, which can be calculated by volume formula.
As for ice, it floats on the water, so the drainage method should be used skillfully. The weight of ice can be calculated by the drainage method (the discharged water is the weight of ice), and then the volume of ice can be calculated by the density of ice. The above method is approximate. If you want accurate values, you need to use sophisticated instruments and calculations.
Question 4: What method is used to measure the volume of ice cubes so as not to make them melt? Fill the container with cold water, quickly immerse in the ice and collect the spilled water. Use a measuring cylinder to measure the volume of spilled water, that is, the volume of ice cubes.
Question 5: How to measure the volume percentage of ice crystals and air in ice?
The shell of the ice crystal box is generally made of high-strength and low-temperature resistant materials, and it is filled with cold storage liquid, which can generally be recycled. The freezing point of the cold storage liquid is-12℃, that is, the cold storage liquid in the ice crystal box can only form ice at-12℃, and its freezing point is lower than that of water, so the stored cold energy and the released cold energy during dissolution are much greater than that of water, which can quickly play the role of cooling and relieving summer heat in hot summer. It has the characteristics of sufficient cold storage, rapid refrigeration and slow cold release.
Ice crystals of air-conditioning fans are sealed with rubber plugs and aluminum covers, which are non-toxic, conform to sanitary standards and have large cold storage capacity. At present, ice crystals of air-conditioning fans are widely used in cooling air-conditioning fans. Before using the air-conditioning fan, it is generally necessary to put the ice crystals in the refrigerator for 5 to 6 hours before freezing, and then put them in the water tank of the air-conditioning fan to cool down, so that they can be recycled and never fail.
Ice crystal application of air conditioning fan
1. Ice crystal boxes are usually placed in the water tank of air conditioning fans. There are two kinds, one is filled with ice crystal gel, and the other is filled with ice crystal powder without water. Before use, you must first confirm what kind of ice crystal box it is.
2. If you want the air-conditioning fan to blow cool air, I suggest you prepare more ice crystal boxes (4 are appropriate). Put them together in the refrigerator and freeze them. Two are better than one. Use them alternately.
Specific use method of ice crystal of air conditioning fan
Put the ice crystal box into the freezer and keep it frozen for more than 6 hours. If the refrigerator has a large space, ice crystals can be put into the refrigerator at any time without using an air-conditioning fan to absorb cold energy. You can use it directly when you use it, which is very convenient.
Put the frozen ice crystal box into a water tank filled with water through an air conditioning fan. Generally, the amount of water should not exceed the ice crystal box. The volume ratio of water to ice crystal box is 1: 1.
Due to the cost, there are only 1-2 ice crystal boxes attached to the main engine, and the volume of the ice crystal boxes is also very small. In order to achieve better cooling effect in daily life, users had better buy two more ice crystal boxes themselves, which has achieved better cooling effect.
As the main component of cooling air-conditioning fan, the ice crystals of air-conditioning fan play a very important role. The use of air-conditioning fans can really bring us a little coolness in hot summer, and the ice crystals of air-conditioning fans play an indelible role in it.