What does dry bulb temperature mean?

Question 1: What are the dry and wet bulb temperatures of the air conditioner? How to measure the dry bulb temperature directly with a thermometer at ordinary times? You said minus 35 degrees is the dry-bulb temperature.

Wet bulb temperature means that you wrap the probe of the thermometer with wet gauze, and the moisture in the gauze evaporates to absorb the heat of the tropics, so that the thermometer drops to a certain temperature, which is called wet bulb temperature.

Your outdoor temperature is -35 degrees, so the technical requirements for adjustment are very high! !

Ordinary air conditioners can't meet your heating needs at all. You need to carefully investigate the central air conditioner you intend to use before buying.

Question 2: How are the dry-bulb temperature and wet-bulb temperature defined in air conditioning? Dry bulb temperature is the temperature measured by our daily thermometer, which can be sensed and adjusted. Wet bulb temperature is mainly used to measure the relative humidity of air, that is, perceived humidity. As the saying goes, the main object of adjustment is humidity, and these two values have reached the two main purposes of general household air conditioners, temperature and humidity adjustment. Another: three major tasks of air conditioning, temperature, humidity and cleanliness; General household air conditioners have no cleanliness adjustment.

Question 3: Are dry bulb temperature and air temperature the same concept? Temperature, temperature. China is expressed in degrees Celsius.

In meteorology, the physical quantity representing the degree of air heat and cold is called temperature, which is referred to as temperature for short. The international standard unit for temperature measurement is Celsius (℃).

The temperature mentioned in the weather forecast refers to the air temperature measured in the open air without direct sunlight (usually measured by blinds). The highest temperature is the highest temperature in a day, generally appearing in14-15; The lowest temperature is the lowest temperature in a day, usually before sunrise. China uses centigrade scale, which is expressed in degrees Celsius. Generally, it is observed four times a day, at 02: 08: 00,/kloc-0: 4: 00 and 20: 00: 00 respectively. According to the actual situation, some stations observe three times a day, at 08: 00, 14 and 20: 00 respectively.

Question 4: What are the parameters that indicate the air state? What is the difference between dry bulb temperature and wet bulb temperature? The parameters representing the air state are temperature, pressure, humidity and density.

The dry bulb temperature is the temperature measured when the thermometer is exposed to the air freely, so the interference of radiation and moisture should be avoided. The temperature of dry bulb thermometer is usually considered as the actual temperature of the air to be measured, which is the real thermodynamic temperature. It is the temperature measured by an ordinary thermometer exposed to airflow. Unlike the wet bulb thermometer, the temperature of the dry bulb thermometer has nothing to do with the current humidity value in the air.

Wet bulb temperature is the temperature of the thermometer bulb after the water evaporates and takes away the heat when the surface of the thermometer bulb is attached with water. The evaporation of water is related to the humidity of the air. The greater the air humidity, the smaller the evaporation, the less the heat taken away, and the smaller the temperature difference between dry and wet balls. The smaller the air humidity, the greater the water evaporation, the more heat it takes away, and the greater the temperature difference between dry and wet balls. Therefore, the current air humidity can be reflected by the changing law of the temperature difference between dry and wet balls.

Question 5: What is the dry bulb temperature? Wet bulb temperature? Black ball temperature? Dry-bulb temperature is the value read on a dry-bulb thermometer exposed to air and not directly illuminated by the sun (dry-bulb temperature is the real temperature of air, called temperature). The temperature sensing part of the mercury ball of the thermometer is wrapped with wet cotton cloth, and the lower end of the cotton cloth is immersed in water to keep the cotton cloth wet all the time. This kind of thermometer is called a wet bulb thermometer. The temperature of the black ball is also called the real sensing temperature. In the radiant heat environment, the actual perceived temperature expressed by temperature is generally higher than the ambient temperature, that is, the air temperature.

Question 6: What do the dry bulb temperature and wet bulb temperature in the curing barn mean respectively? It is called a dry bulb thermometer. The other is wrapped with gauze soaked in distilled water, and the lower end of gauze is soaked in distilled water, which is called wet bulb thermometer. Because the gauze wrapped by wet bulb thermometer absorbs water, evaporates and absorbs heat, the reading is smaller than that of dry bulb thermometer. Wet ball gauze often needs a new one. When the air is dry, the gauze of wet bulb thermometer evaporates quickly and absorbs more heat, so the difference between the two thermometers is quite big. The greater the difference between the two thermometers, the drier the air is. When there is a lot of water vapor in the air, the gauze of wet bulb thermometer evaporates slowly and absorbs less heat, so the difference between the two thermometers is small. The smaller the difference between the two thermometers, the wetter the air.

Question 7: What is the meaning of "dry bulb temperature" in automobile air conditioning? Exposed to the air, but not directly illuminated by the sun, the value directly read on the dry-bulb thermometer is called "dry-bulb temperature". When the meteorological station detects the ambient temperature, in order to avoid direct sunlight, the thermometer is placed in a box with shutters. Usually, the weather temperature reported by the meteorological station is also the "dry bulb temperature".

Question 8: What is the difference between dry bulb temperature and wet bulb temperature? Because the wet bulb not only absorbs the heat of the surrounding air, but also absorbs the heat inside the wet bulb, the temperature of the wet bulb is lower than that of the dry bulb.