Now there is a refrigeration agent, called R410a, weighing twenty-five pounds. This agent is also essential for refrigeration, and it has great achievements in refrigeration.

Its mild nature, the phase state changes with temperature and pressure, the gaseous state is light, and the flow is fast; the liquid state is stable, and the cold storage is quite abundant. At the amount of twenty-five pounds, in the refrigeration system, the cycle repeats, if the water of the river rushes endlessly, in order to achieve the effect of cooling.

At the beginning, it enters the evaporator, encounters warm gas, absorbs its heat, and converts from liquid to gas. Like ice melting in the spring sun, it quietly absorbs heat and makes the surrounding air cool. Then, the heat-carrying gas enters the compressor, and through the force of compression, the pressure rises sharply, and the temperature is also high. It is like adding firewood to the fire, and the heat is more intense.

Then, it enters the condenser, and when it encounters the outside world, it releases heat, and then changes from the gas to the liquid, such as dew in autumn grass, the warmth dissipates, and returns to the stability of the liquid state. Then through the throttling device, the pressure is lowered and the temperature is lowered, and it slowly flows out, like a clear spring coming out of the valley, gurgling, and re-entering the evaporator to start a new round of circulation.

This twenty-five pounds of R410a refrigerant, in the refrigeration industry, is like a good general in the military, working day and night, tirelessly, to ensure the coolness of the environment, the stability of the utensils, and for the people and industry. Although invisible and colorless, its merits are revealed between heaven and earth, and users feel its benefits and receive its benefits.