22
2020
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05
Causes and Results of "Heating Temperature Gradient" in Jinghan Heating Classroom -3
Author:
summary:The temperature gradient phenomenon is due to the indoor air in the radiator heating process, the air molecules have thermal energy, the relative density becomes smaller, the unit volume mass becomes lighter, by the buoyancy of the surrounding cold air upward flow generated "hot air upward flow phenomenon". It will cause heating problems such as high ceiling temperature and low ground temperature in the heating room, and the heating cannot meet the requirements. The radiator heat dissipation method is the natural convection air heating equipment. When the radiator works, more than 60% of the heat is generated by air convection, which is the main reason for the "temperature gradient. Another 35% or so of the heat is
The temperature gradient phenomenon is due to the indoor air in the radiator heating process, the air molecules have thermal energy, the relative density becomes smaller, the unit volume mass becomes lighter, by the buoyancy of the surrounding cold air upward flow generated "hot air upward flow phenomenon". It will cause heating problems such as high ceiling temperature and low ground temperature in the heating room, and the heating cannot meet the requirements.
The radiator heat dissipation method is the natural convection air heating equipment.
When the radiator works, more than 60% of the heat is generated by air convection, which is the main reason for the "temperature gradient. Another 35% of the heat is transferred outward by radiation, which is accepted by surrounding objects during the radiation process, and the energy is useful for heating. There is also about 3% heat conduction and heat dissipation, which also heats the surrounding air and generates a new "temperature gradient" in which the hot air flows upward ".
Heating "temperature gradient" consequences
Due to the phenomenon of "temperature gradient", a new "chimney effect" is accelerated at the same time ". The generation of the chimney effect strengthens the indoor air convection speed, resulting in hot air passing to the outside because of the building's building "gap", resulting in more energy waste. Indoor heating temperature balance, stability, in the absence of temperature gradient environment, will reduce the indoor air convection, reduce the chimney effect.
It can be seen that the heating temperature gradient, the impact on the heating effect of the building is obvious, the heating ground area temperature is not up to standard, while causing heating energy waste phenomenon.
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