What s going on with the high temperature of the inner flame of the alcohol lamp

The temperature of the inner flame of the alcohol lamp is between 400 and 1000.

The flame of the alcohol lamp in normal use should be divided into three parts: the flame core, the inner flame and the outer flame. When heating, it should be heated by an external flame. The results show that the order of the flame temperature of the alcohol lamp is as follows: outer flame, inner flame, and flame center.

Theoretically, it is generally believed that the outer flame temperature of the alcohol lamp is the highest, because the outer flame is in full contact with the outside atmosphere, the energy exchange with the environment is the easiest during combustion, and the heat release is the most, resulting in the outer flame temperature is higher than the inner flame.

For a long time, many textbooks and related manuals have believed that the outer flame temperature of the alcohol lamp is the highest, because the alcohol vapor burns most fully in the outer flame. But really, this is only one aspect; On the other hand, it is precisely because the outer flame is in full contact with the outside atmosphere that the energy exchange with the environment is frequent during combustion, and the heat loss is the largest, resulting in the temperature of the outer flame being lower than that of the inner flame.

The temperature in the center of the flame is not high because the air is relatively thin and the alcohol vapor is not fully combusted. The internal flame alcohol vapor is stable, the contact with the air is moderate, the combustion is more sufficient, the light is bright, and the temperature is the highest.

Score inner and outer flames.

The temperature of the inner flame of the alcohol lamp is about 100 degrees, and the temperature of the outer flame of the alcohol lamp is about 240 degrees.

Generally, the average temperature of the flame core of the alcohol lamp is degrees, the average temperature of the inner flame is degrees, and the average temperature of the outer flame is degrees. The temperature of the outer flame of the alcohol lamp is unstable and fluctuates violently. Alcohol lamps are suitable for experiments where the temperature does not need to be too high, especially when gas equipment is not available.

The flame temperature of alcohol lamps is not too high, and the flame temperature of alcohol lamps can reach up to 800-900 degrees Celsius. Alcohol lamps can be divided into direct-heating alcohol lamps and side-heating alcohol lamps according to the heating method.

The heating temperature of the outer flame of the alcohol lamp is about 600.

The heating temperature of the inner flame of the alcohol lamp is about 400-600.

The heating temperature of the flame heart of the alcohol lamp is about 400.

The flame temperature of the alcohol lamp can reach more than 1,000 degrees Celsius at its peak.

Ignition point - refers to the heat of combustion released by a combustible substance after it is heated and ignited, so that the substance volatilizes a sufficient amount of combustible vapor to maintain the combustion. At this time, the minimum temperature required to heat the substance is the "ignition point" of the substance, also known as the "ignition point". The lower the ignition point of the substance, the easier it is to burn.

The burning value of alcohol is 3 107 coul kg, about 300 when the alcohol burns normally, 400 500 when the alcohol lamp burns, and the maximum temperature of the alcohol blowtorch can usually reach about 1000.