Why is it easier to cool than heat in general air conditioning?

It can be very clear to you that this is first of all caused by the corresponding working principle of the compressor, which is mainly to produce some refrigerants of 22232 after vacuum compression inside.

After the compressor circulates back and forth, it rises to form a large exchange airflow, and then produces the condensation of the cold air, and then there is an indoor unit fan blowing into the room, so its cooling effect is relatively fast, and the heating is mainly used to use the current ceramic heating.

body, so in the process of use, the compressor is also working for heat dissipation, but first of all, the power is relatively large when it is heated, so at this time, its overall compressor is in a high-load operating state, so it is relatively easy to refrigerate.

Generally, the cooling effect of air conditioning is better than that of heating, because the power of the compressor is relatively large and the work efficiency is relatively high.

The refrigeration and heating situation of air conditioning is: refrigeration works by the compressor, and when the set temperature is reached, the heating rod and the compressor work together and are controlled by the thermostat. The heating is only when the heating rod is working, and the compressor works when the set temperature is reached.

This reason is very simple, for example, a horse air conditioner refrigeration is about 1,000 watts, if the heating has to open the 1,000 watt auxiliary heat pipe is 2,000 watts, plus the external environment temperature difference is also large, it will definitely be slow.

In the case of a high temperature and a very low temperature, and the space is the same, the temperature is high in summer, and the temperature drops by a few degrees Celsius will make people feel cool, no matter how high the temperature is in summer, the temperature drops by 5 degrees, which already makes people feel comfortable.

In winter, the air conditioner has risen from about 0 to 20, which is already a lot overloaded, and the temperature difference across is very large, and the machine can't adapt to it.

On the one hand, it is not easy to absorb a lot of heat at low temperatures, and it is also inefficient. Sometimes the drop in temperature and the combination of inside and outside will affect the heat absorption effect, and the efficiency is much lower. Some old air conditioners can't work normally after a long time, and the heating effect is not as good as the cooling effect.

This is my point of view, I hope there is something wrong, everyone put it forward, thank you!

Let's talk about why refrigeration is more difficult than heating, heating is inherent in nature, ignition or friction or electricity can be heated, refrigeration is more troublesome, conventional refrigerant compression refrigeration to cool the working fluid below the ambient temperature, nature does not exist.

For this problem, when the air conditioner has a normal cooling effect, it feels that the heating effect is not as strong as the refrigeration. There are many reasons for this. However, due to the principle of air pressure, heating is definitely not as fast as refrigeration, and in summer, the cold air is running down, so the air conditioner will feel obvious coolness soon after turning it on.

But in winter, the hot air goes up, and if the roof ceiling in the room is relatively high, it is difficult to achieve the desired effect.

The principle of air conditioning heating is to achieve the heating effect by liquefiing and releasing heat in the condenser of the air conditioning refrigerant, and some air conditioners are supplemented by electric heating pipe heating. Under this heating principle, the heating of air conditioners is very strict in order to achieve the target temperature. At present, the recommended air conditioning area in China, such as the air conditioning area, is:

15 to 24 square meters. This area is actually the effective area for cooling in summer. The heating area is much smaller.

Therefore, when a room of about 20 square meters is generally heated by a horse air conditioner, the effect will indeed be less than ideal.

Air conditioning and refrigeration can only be achieved through the compressor, but the heating requirements are much higher than that of refrigeration, and the air conditioner needs the compressor and electric auxiliary heat to operate at the same time to achieve the effect of heating. Therefore, in principle, heating has high requirements for the body of the air conditioner, which will consume the life of the air conditioner. It is precisely for this reason that many businesses focus more on how good the effect of air conditioning and refrigeration is when promoting air conditioning, but they do not recommend the function of heating.

This is due to the fact that in winter, there is a temperature difference between indoor and outdoor temperatures, when you want to turn on the heating function of the air conditioner, it takes a long time to run, and the process of this operation is constantly consuming electricity, the air conditioner itself is a high-power electrical appliance, and the summer refrigeration is still a small power consuming expert, not to mention the winter heating, which is unaffordable for many families.

Let's start with a simple one, if there are any components that are refrigerated when they are energized, this can be had, semiconductor refrigeration, specifically, but based on the law of conservation of energy, refrigeration will also heat up at the same time, and it is impossible to only refrigerate without heat. Let's talk about why refrigeration is more difficult than heating, heating is inherent in nature, ignition or friction or electricity can be heated, refrigeration is more troublesome, conventional refrigerant compression refrigeration to cool the working fluid below the ambient temperature, there is no such workflow in nature. There are many conditions required to achieve artificial refrigeration, such as the need for a suitable working fluid, which used to use natural carbon dioxide or sulfur dioxide or ammonia, and now uses synthetic HCFC refrigerants.

For example, it is necessary to have the right equipment, such as the common screw centrifugal scroll compressors, various heat exchangers, etc., but the most rare is the refrigeration cycle theory. Although I am familiar with the reverse Carnot cycle, entropy increase, and ph diagrams, I would also say that the person who came up with this process was a genius, because there is no such thing as "refrigeration" in nature.

Why? In fact, refrigeration and heating are the same, mainly refrigeration, generally cooling down by 10 degrees, such as cooling from 35 degrees to 25 degrees, and the person feels very cool. This cooling time is also very fast.

But the heating is a little slower, 5 degrees to 25 degrees, it will heat up 20 degrees, and it takes a long time. The outdoor temperature is too low, and the heating effect is not good. Therefore, it will feel that cooling is easier than heating.

In fact, cooling and heating are different methods.

Refrigeration is the compression of the refrigerant by the air conditioner to make it into a liquid, and then the refrigerant is evaporated to absorb the heat, which is generally an easy task for the air conditioning engine.

However, heating is the conversion of electrical energy into internal energy through the air conditioner itself, which consumes a lot of electricity and takes a long time to heat. So it's easier to refrigerate.

Hope mine is helpful to you.

The effect of refrigeration is good, because the density of the cold air is high and sinks, you feel the cold capacity is larger, and the density of the hot air for heating is low and rises, you feel worse, in fact, a machine with a fixed cooling capacity, in terms of power consumption, is high in heating, and the efficiency of heat pump air conditioning heating is lower than that of refrigeration.

Hello: 1, the working principle of the air conditioner is [Heat of compressionTransfer, when heating, is to transfer the indoor temperature to the outside; Shift the outdoor temperature to the interior during heating.

2. Compared with refrigeration and heating, [The outside temperature is low and less compression heat is generated], so the efficiency is relatively low, so it is not as easy as refrigeration.

Because the working temperature of the refrigerant used in the air conditioner is limited, of course, it is also related to the performance of the compressor, if the refrigerant of the refrigerator is used for heating, the effect is good, but it is inevitable to freeze, and de-icing also has some effect.

Air conditioning heating requires electricity to generate heat, and continuous power generation provides heat, so that the temperature rises, which is more difficult than cooling.

In fact, if you analyze it from a technical point of view, the principle of air conditioning heating and cooling is the same, but it is said that the heating on this person's senses is slightly sluggish than cooling.

Heating is already in nature, ignition or friction or electricity can be heated, refrigeration is more troublesome, conventional refrigerant compression refrigeration to cool the working fluid below the ambient temperature, there is no such workflow in natureThere are many conditions required to achieve artificial refrigeration, such as the need for a suitable working fluid.

The basic structure of a car consists of the following four parts:

1. Automobile engine: The engine is the power unit of the car.

2. The chassis of the car: the chassis is to support and install the engine of the car and its various parts and assemblies, form the overall shape of the car, and accept the power of the engine, so that the car can move and ensure normal driving. The chassis is composed of four parts: the drive train, the driving system, the steering system and the brake system.

3. Automobile body: The body is installed on the frame of the chassis for drivers and passengers to ride or load goods. The body of cars and buses is generally an integral structure, and the body of trucks is generally composed of two parts: the cab and the cargo box.

4. Electrical equipment: electrical equipment is composed of two parts: power supply and electrical equipment. Power sources include batteries and generators; Electrical equipment includes the starting system of the engine, the ignition system of the gasoline engine and other electrical devices.

The air conditioner heats, of course, the higher the temperature, the hotter it gets. It is not recommended to turn on the temperature too high when the air conditioner is heating, which will not only cause a high load on the air conditioner, but also destroy the body's adaptation to the temperature, bringing some "air conditioning diseases". Generally, the recommended temperature for air conditioning heating is 20-25 degrees Celsius, which will keep the human body at a suitable temperature.

When the air conditioner is heating, the higher the degree, the higher the temperature. When cooling, the lower the degree, the cooler it is. In winter, the air conditioner temperature is best between 20 and 24, and the best temperature is 20.

This can avoid overloading the air conditioner and increasing power consumption. This setting is more suitable for the temperature of the human body, and can also avoid symptoms such as feeling hot and dry mouth.

The hotter the air conditioner, the warmer it will be and it will also save electricity. In winter, it is very appropriate to keep the temperature of the air conditioner around 20 to 25 degrees, as such a temperature will give a very comfortable feeling, and at the same time avoid it consuming too much electricity and save electricity for people.

When turning on the air conditioner in the winter when the air is cold, the temperature must be right. The higher the temperature, the warmer the weather. In fact, the temperature can be set at about 20 degrees, which can also save some electricity and avoid the work of air conditioning load.

When turning on the air conditioner in winter, be sure to clean the air conditioner's filter regularly.

When the air conditioner is heating, the higher the degree, the hotter it is; When cooling, the lower the degree, the cooler it is. In winter, the air conditioning temperature is best between 20 and 24, and the optimal temperature is 20. This can not only avoid overloading the air conditioner and increasing power consumption.

This setting is a more suitable temperature for the human body, and it can also avoid symptoms such as feeling hot and dry, dry mouth, etc.

Extended information: The liquid freon is depressurized by the throttling device, enters the heat exchanger of the outdoor unit (in this case, the evaporator), evaporates and vaporizes to absorb heat and become a gas, and at the same time absorbs the heat of the outdoor air (the outdoor air becomes colder), and the freon that becomes a gas enters the compressor again to start the next cycle.

Air conditioners are divided into single cooling air conditioners and cold and warm air conditioners, the working principle is the same, and most of the refrigerants used in air conditioners before were freon.

The characteristic of Freon is that when it changes from a gaseous state to a liquid state, a large amount of heat is released. When the liquid state changes from a gaseous state, it absorbs a large amount of heat. (i.e., first absorbing heat and gasification and then liquefiing and heat release) air conditioners are designed according to this principle.

There are two main methods of air conditioner defrosting, one is non-stop defrosting and the other is shutdown defrosting. Shutdown defrosting is mainly by changing the flow direction of the refrigerant, and the high-temperature and high-pressure refrigerant output by the compressor is transported to the frosted heat exchanger of the outdoor unit, so that the frost layer on the outdoor unit melts.

The degree is directly proportional to the calorie, of course, the higher the degree, the higher the calorie!!

The weather is so hot, what air conditioner has a better cooling effect.

Gree, Midea, Haigaijuer, Oaks and other air conditioners have good refrigeration effects. 1. The refrigeration capacity of air conditioning is an important parameter that reflects the refrigeration capacity of air object elimination, and is the basis for the selection of air conditioning, household air conditioning is generally selected according to the refrigeration capacity of 120-150w square meters, the room is west to the sun, and the heat insulation and sealing are poor, and it can also be appropriately increased, but generally does not need to exceed 200w square meters. For example, a 20-square-meter bedroom, no sunlight, sealed and insulated, choose 26 (cooling capacity 2600w); If the sealing and thermal insulation are slightly poor, you can choose 30 type; If the West Sunshine and the seal insulation are not good, you can choose to wait for the regulator to be energized, the low-pressure steam of the refrigerant in the refrigeration system is sucked into the compressor, compressed into high-pressure steam, and then enters the condenser.

At the same time, the outdoor air drawn in by the axial fan flows through the condenser, taking away the heat released by the refrigerant and condensing the high-pressure refrigerant vapor into a high-pressure liquid. After heat exchange with outdoor air, it becomes a medium-temperature medium-pressed refrigerant liquid. After throttling and decompression, it is cooled in a capillary tube and enters the evaporator, where it evaporates at the corresponding low pressure to absorb the surrounding heat.

At the same time, the cross-flow fan continuously feeds the air into the evaporator fins for heat exchange, and sends the exothermic cold air to the room. In this way, the indoor air is constantly circulating and flowing to achieve the purpose of cooling.

There are many reasons why an air conditioner is not cooling. First of all, the use of problems, such as whether the remote control is working properly and whether the function settings are correct, are eliminated. Then the cover rot determines which part of the machine is broken.

For example, the internal and external units are not working, and the control part is normal, if the machine is running normally but not refrigerating, then it is suspected that it is a refrigerant problem. Judging from your statement, there is no condensate discharge from the indoor unit, probably no refrigeration. The temperature of the external unit pipeline is low, and there is still refrigerant.

If you do not unplug the power cord for a long time, you may damage the control circuit of the machine. Based on these circumstances, the cause of the failure cannot be determined immediately, or it is still inspected by the maintenance department of the repair manufacturer.