Which is better, solar energy or air?

Question 1: What are the advantages and disadvantages of air energy and solar energy? Which is better? The air can be better, solar energy needs electric heating in winter, and a water pipe is inconvenient for home use. Nowadays, energy conservation and environmental protection are advocated, and air can meet this requirement.

Question 2: Compared with solar water heaters, what kind of good air can make up for the shortcoming that solar water heaters can't produce efficiency all day? At night, the solar water heater can only keep the temperature of hot water until the night by relying on the heat preservation function of the water tank. After all, most people still work during the day and take a bath at night. Second, it is more energy efficient. Air-source water heater works by electricity, with a small amount of electricity, and the refrigerant absorbs low temperature and turns into high temperature output. It depends on different regions. The southern region is rich in solar energy, so the solar energy utilization rate is relatively high and the cost performance is high. There are more rainy days in some areas, and due to the influence of special environment, air source water heaters are more suitable, depending on the region.

Question 3: Solar air energy natural gas water heater which is a good gas water heater is not energy-saving and environmentally friendly, and it is a product that is gradually being eliminated. Let's make a comparison between air energy water heater and solar water heater, and refer to which one is better:

Advantages of solar water heater:

1, economic, energy-saving and environmental protection. Under direct sunlight, the operating cost of traditional solar energy is almost zero. It is the most energy-saving and environment-friendly water heater except rainy days and winter.

2, safety and convenience, large water supply and long service life. All-weather hot water supply, safe and convenient, large water supply.

3. The solar water heater with auxiliary electric heating function is mainly solar energy, supplemented by electric energy, so that the solar water heater can be used all year round.

Disadvantages of solar water heaters:

1, which is expensive and complicated to install. Solar panels are expensive and generally installed on the roof, which increases the difficulty of installation.

2. Compared with air energy water heater, it is more difficult to maintain.

3. In rainy days and winter, there is often insufficient heat absorption, which requires electric auxiliary heat to assist heating. A section of residual water in the upper and lower pipes is wasted, and it can't be used in cold areas because this pipe freezes. Statistics show that under normal use, the annual energy consumption of conventional solar auxiliary systems is higher than the total energy consumption of air energy water heaters.

4. The installation of single buildings in the city affects the architectural beauty and is limited by the property management department.

The advantages of air energy water heater are:

1, energy saving and environmental protection, the energy saving effect of air energy water heaters is relatively better: the average energy saving of air energy water heaters is 65-80%, and that of electric auxiliary solar water heaters is 40-65%, which can only reach 70% under special circumstances. Small investment: calculated by saving 65% electricity, the investment of air energy water heater is only about 70% of that of electric auxiliary solar water heater.

2, the installation position is not limited, no lighting is needed. Conventional solar energy products are obviously affected by the weather, so they can't work in rainy days, snowy days and nights, while air energy water heaters are almost unaffected by the weather, and can work as usual in cloudy days, rainy days, snowy days, nights and sunny days, providing hot water all day. However, solar water heaters can only generate hot water on sunny days and can be used in the afternoon and evening. In other days and nights, hot water needs other energy. In many parts of the country, the working time of electric auxiliary devices of solar water heaters is above 40%.

3, scientific and technological life, high-end comfortable enjoyment, air energy water heater has strong adaptability, all-weather water production, and can supply more water, which is more convenient to fully solve the problem of domestic hot water.

4. The air energy water heater can produce cold air while making hot water, which can be used for dehumidification, refrigeration, air filtration and other auxiliary functions, which is equivalent to a free air conditioning installation workload. Compared with solar water heaters, air energy water heaters have less installation workload and simpler maintenance. Moreover, there are many manufacturers' air energy water heaters that have six years of maintenance and after-sales guarantee, and Aini air energy is as long as seven years, which completely solves the worries of users.

Disadvantages of air energy water heater:

1. Although it is an energy-saving product with obvious effect, it also consumes a part of conventional energy (electric energy), which is also the reason for its geographical obstacle, that is, it is not available in areas without electricity.

2. The COP value (heating performance coefficient) of the air energy water heater is close to 1 when the climate in the north is cold and severe, which has no energy-saving significance. Because of its obvious regional characteristics, air energy water heaters depend largely on the external environment temperature (the normal working environment temperature is between -5 and 40 degrees), so they are basically suitable for areas south of the Yangtze River, such as Guangdong, Guangxi, Fujian, Zhejiang, Hunan, Yunnan, Jiangxi, Jiangsu and other provinces, and the development of air energy heat pump water heaters has been better promoted and used. However, before there is no real technology to solve the problem of product operation difficulties caused by frosting, it is difficult to popularize and apply air energy in the vast north at present. How to better solve the frosting problem of air energy water heater and work stably and normally in low temperature and cold environment, Aini Electric and industry elites are also working hard for it. I believe that in the near future, air energy water heaters will be used by more people and more widely.

Question 4: Which solar water heater is better? 1. service time: the solar water heater can be used intelligently in sunny days, but it can't be used in rainy weather, rainy and snowy weather and at night, which has great limitations. If it rains and snows for a long time, solar energy can't be used, which seriously affects the life bath. The air energy water heater can run only by plugging in, and there is hot water.

2. Power saving: Solar water heaters don't need electricity to heat water, but they need electricity for auxiliary heating in rainy and snowy weather and at night, which consumes electricity and is unsafe, and uses more electricity than air. The air energy water heater heats 200L of water, and it needs 1.2 kWh a day. It takes nearly 1 kwh to take a bath for 20 minutes alone in winter.

3. Safety: The air energy water heater is absolutely safe, because it is not directly heated by water and electricity, and the water and electricity are separated. Solar water heaters are also directly heated, which has certain risks. Safe, but most importantly, bathing is also a process of enjoyment, and bathing with fear is a painful process.

4. Environmental protection: solar water heaters use the sun to heat, and air energy water heaters use air to heat, both of which belong to environmental protection products and sustainable resource products. However, air energy water heaters will pollute the environment if they do not use environmentally friendly refrigerants.

5. Effectiveness: The air energy water heater can not only have central hot water, but also have the function of kitchen air conditioning. Solar water heaters can only be used in the bathroom. Air energy central hot water can be used for washing vegetables, washing hands and washing dishes. As long as there is hot water where there is a faucet, it is convenient and fast, and kitchen air conditioning can also solve the problem of stuffy kitchen.

Through the above comparison, we find that the air energy water heater is better. Of course, when you want to buy an air energy water heater, you need to consider the brand, price, service, reputation and so on.

Question 5: Which air energy water heater is better than solar energy? Compared with solar water heaters, air energy water heaters have four advantages:

1. More energy-saving. Solar water heaters rely on the sun for about 200 days a year, and can only rely on electric auxiliary heating at other times. The comprehensive heating efficiency is 200%, while the annual average heating efficiency of air energy water heaters is as high as 400%, saving 50% compared with solar energy.

2. It's safer this way. The solar water heater is an electric water heater when it works with electric auxiliary heating, which is in danger of electric leakage, while the water-electricity isolation technology adopted by the air energy water heater is safer.

3. More stable. The heating tube of solar water heater adopts glass tube, which is easy to freeze and crack, and its service life is 5-8 years, while the service life of air energy water heater is about 15 years.

4. The installation is simpler. The installation space of solar water heater is large and the construction is complicated, which affects the overall beauty of the building. The air energy water heater is simple to install and beautiful in appearance.

Question 6: Which is better, solar water heater or air water heater? The safety record of electric water heaters is better than that of gas water heaters.

Solar water heaters are complicated to install, but they are energy-saving and environmentally friendly.

Gas water heaters are small in size, various in types and convenient to use.

Three kinds of water heaters have their own advantages and disadvantages, and consumers should weigh their choices according to their actual situation when purchasing. This paper introduces the above three kinds of water heaters in terms of performance.

gas oven

The energy used by gas water heaters is combustible gas, which can be divided into direct discharge type, flue type, forced discharge type and balance type according to its forms.

In-line water heater: the oxygen needed for combustion is obtained indoors, and the flue gas produced after combustion is also discharged indoors. Because it is easy to cause personal injury accidents, production has been banned.

Flue water heater: an exhaust pipe is added on the basis of direct exhaust type, and the oxygen required for combustion is taken indoors, and the flue gas generated by combustion is discharged to the outside through the flue. This water heater must be equipped with a flue when it is installed, and attention should be paid to the smooth exhaust of the flue when it is used to prevent backflow.

Forced exhaust water heater: On the basis of the flue type, a flue gas exhaust motor is added, and the flue gas is discharged to the outside through the flue. During operation, the flue gas is forcibly discharged to the outside through the flue, but the oxygen required for combustion is still taken from the room.

Balanced water heater: compared with the first three, it has achieved a great leap. The shell is sealed, and the flue connected with the shell is made into two layers. The flue leads from the wall to the outside, and the oxygen required for the operation of the water heater is supplied from the outside through the outer layer of the flue. The flue gas generated after combustion is discharged from the inner layer of the flue to the outside, which neither consumes nor pollutes the indoor air. However, installing such a water heater needs to reserve a passage like installing an air conditioner.

Advantages: fast heating speed, large water output, stable temperature, less scaling, small floor space and no need to control water.

Disadvantages: No matter what kind of gas water heater is used, toxic gas will be discharged due to insufficient combustion, which is easy to cause safety accidents; The starting water pressure is high, and some users living in high-rise buildings can't start without booster pumps; It is inconvenient to install, so it is necessary to make a hole in the wall and install an exhaust fan. Different gases have different burner shapes, nozzle sizes and cross-sectional areas of gas channels.

electric water heater

At present, the electric water heaters in the domestic market are mainly storage water heaters. The water storage electric water heater is clean and hygienic to use, does not need to be installed in different rooms, does not produce harmful gases, and is convenient to adjust the temperature. Storage electric water heaters are divided into closed and open types.

The inner container of open water heater is not pressure-resistant, so it cannot supply water to many places at the same time. The inner container of closed electric water heater is pressure-resistant and can supply water to many places at the same time.

Advantages: it can adapt to any weather change, can be directly installed and used by ordinary families, and can be powered on for a long time to provide large-flow hot water. At present, most electric water heaters sold in the market are also equipped with anti-electric shock devices. Electric water heaters have a better safety record than gas water heaters.

Disadvantages: huge volume, large indoor space, easy scale, and large waste of electric energy. The latest electric water heater has built-in anode magnesium rod descaling device, which solves the problem that the product is easy to scale. However, the anode magnesium rod must be replaced once every two years, which brings trouble to maintenance.

At present, fast electric water heaters have begun to appear on the market. This kind of water heater combines the advantages of energy saving and safety of electric water heater and the advantages of small and exquisite gas water heater, but the disadvantage is that it needs special lines and the water output is relatively small in winter.

solar water heater

At present, the solar water heater with the highest technical level is the vacuum collector tube solar water heater. Based on the principle that hot water floats and cold water sinks, the water in the vacuum tube absorbs solar energy and heats the water in the water storage tank through temperature difference circulation.

Advantages: safety, energy saving, environmental protection and economy. Especially the solar water heater with auxiliary electric heating function, which takes solar energy as the main energy source and electric energy as the auxiliary energy source, can be used all year round.

Disadvantages: complex installation, such as improper installation, will affect the appearance quality and appearance of the house; Maintenance is more troublesome, because solar water heaters are installed outdoors, mostly on the roof and roof, so it is more difficult to maintain than electric water heaters and gas water heaters.

Question 7: Is the solar water heater better or the air water heater? The advantage of solar energy over air energy is that solar energy basically does not need electricity from spring to autumn;

Disadvantages are:

1. The electricity consumption of solar energy in winter is greater than that of air bladder in the whole year. This is not what I said, but there are relevant statistics;

2. Although solar energy does not need electricity in spring, summer and autumn, the water temperature is unstable, and rainy weather will not be very comfortable, and it is easy to overheat or cool, and the comfort is not very good;

3. Solar energy is restricted by installation. Now some residential areas and properties may restrict installation, and they cover a large area.

Question 8: What kind of good air can be better than solar energy? Solar energy needs electric heating in winter, and it is inconvenient to use water pipes for domestic water. Nowadays, energy conservation and environmental protection are advocated, and air can meet this requirement.

Question 9: Which is better, solar energy or air energy water heater, each has its own advantages and disadvantages. Air can be used all year round, regardless of the weather, or air can be better.