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1. Different types of radiators.
The area under management is different, for example: the heat dissipation area of 1 cast iron large 60 radiator is square meters. The heat dissipation area of one four-column 813 radiator is square meters.
The number of radiators needs to be calculated according to the size of the room. The radiator is calculated by size, generally 1 square radiator tube 20 square indoor area, but it is not fixed, and it should be determined according to the positive direction of the house.
2. Calculation method of heat dissipation of radiator.
Radiator is a kind of heating-based heating equipment. Mainly in the northern regions where the winter is cold.
The heat dissipation of a heat sink can be expressed by the formula: qs=ksfs(tp-tn).
QS - the amount of heat dissipation of the radiator (W);
KS – the heat transfer coefficient of the radiator.
w/(m2•℃)
fs - heat dissipation area of the radiator (m2);
TP – heat inside the radiator.
The average temperature of the medium ( ).
tn – the air temperature in the room where the radiator is located ( ).
As can be seen from the equation, the larger the temperature difference TP-TN, the greater the heat dissipation. If they change in a straight line, then KS should be constant. However, in fact, the increase in heat dissipation is higher than the increase in temperature difference.
3. The type of heat dissipation of the radiator.
1) Steel tube type: It is a steel tube type, with round pipes, flat pipes, etc.
2) Steel plate type: mainly imported from Europe, with good heat dissipation effect, high requirements for production process and large investment, but not suitable for central heating, because there is no internal anti-corrosion inside.
3) Aluminum alloy type: Cheap and shorter life.
4) Copper-aluminum composite: excellent aesthetics, anti-corrosion and heat dissipation, mainly used in the northern market and the high-end market, as well as in areas with poor water quality and the market with gas wall-hung boiler as the heat source.
5) Cast aluminum: The corrosion resistance is too weak, which is not suitable for the retail market and engineering market of central heating in the north. Mainly in the south, the heating system uses the household heating stove as the main heat source.
6) Steel inner enamel.
The internal enamel is used for anti-corrosion, and the life is long.
7) Copper convection radiator: super corrosion resistance, but high cost, low cost performance, and not easy to transport, market share. Extremely low.
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What is the area of a radiator tube? How many squares is a tube for a radiator? How many square meters is a radiator tube?
How much area can a radiator provide? What is the approximate heat dissipation area of a radiator and how to calculate it? How many square meters of heat dissipation area for 1 radiator
How many square meters of room is warm for 1 square meter radiator tube to keep warm? What is the area of a radiator tube? The heating area of the radiator is related to the width and height.
For example, a steel 60 mm wide and meter-high belt is about 3 square meters, and a meter-high belt is about 1 square meter. This is all theoretical data, and the actual design and construction should consider the structure of the house (net height), window size, thermal insulation, etc., and add coefficients. How many pieces are installed in the specific room, the installation master can give you a specific opinion.
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The heating area of the radiator is related to the width and height, for example, the steel 60mm wide, the height of the meter can be about 3 square meters, the meter high with about 1 square meter, if the wider radiator, the area of the belt is larger, different shapes, the difference in heat dissipation will not be too large, how many pieces are installed in the specific room, the installation master, the measurement can give you a specific opinion.
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At present, the heating market is dominated by steel radiators and copper-aluminum composite radiators. The radiator material is different, the height is different, the brand is different, and the heat dissipation area of a single radiator is also different, which cannot be generalized.
The heat dissipation amount marked by the radiator manufacturer at the time of delivery or sale generally refers to the standard heat dissipation. The standard heat dissipation refers to the heat dissipation measured by the heating radiator according to the national standard (GB T13754-1992) according to the specified conditions indoors, and the unit is watts. The conditions specified in it are hot water, the inlet water temperature is 95 °C, the outlet water temperature is 70 °C, the average temperature is, the indoor temperature is 18 °C, and the temperature difference is.
Generally, the steel radiator is 1870mm high, and the heat dissipation area of a single piece is about 3-4 square meters, and the height is 370mm, and the heat dissipation area of a single piece is about square meters.
The copper-aluminum composite radiator is 1800mm high, with a single heat dissipation area of about 5 square meters, and 300mm high, with a single heat dissipation area of about 1 square meter.
In order to avoid insufficient heating heat, users can add 10%-20% surplus on the basis of the heat required by the house according to the actual situation.
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Yes, what I said upstairs is right, the heat dissipation area of different radiators is different, and it is recommended that you go to the radiator manufacturer for accurate data.
The following is the reference value of the concentrated heat dissipation area of the Beijing radiator manufacturer Bosen radiator.
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My living room is about 30 square meters, and I bought 7 radiators with a height of 1.8 meters, which is very good.
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1.The amount of heat dissipated by the radiator.
The heat dissipation of the radiator should be obtained by the following formula: Q = GP (H1 - H2) where: Q - the heat dissipation of the radiator, W; gp - the average flow rate of the heat medium, kg s; H1 - enthalpy of the heat medium at the inlet of the radiator, j kg; H2 - enthalpy of the heat medium at the outlet of the radiator, j kg.
Note: The values of H1 and H2 are based on the temperature and pressure of the heat medium at the import and export of the radiator to be measured, which were found in the first edition of the Heating and Ventilation Design Manual of China Architecture Industry Press in 1987.
2.Measurement of thermal parameters.
When the heat medium is hot water, when the hot water temperature is lower than the boiling point temperature of the water at atmospheric pressure, the water temperature at the inlet and outlet of the radiator should be measured, or the temperature difference between the water temperature at one place and the hot water at the inlet and outlet of the radiator should be measured; When the temperature of the hot water is higher than the boiling point temperature of the water at atmospheric pressure, the water temperature and pressure at the inlet and outlet of the radiator should be measured, or the temperature of one of the water and the temperature difference and pressure difference between the hot water at the inlet and outlet of the radiator should be measured.
When the heat medium is steam, the pressure and temperature of the steam at the inlet and outlet of the radiator should be measured, the steam at the inlet of the radiator should have a superheat of 2 5, and the flow of the measured radiator should only be condensate, and the difference between the temperature of the condensate and the saturation temperature under the steam pressure at the inlet of the radiator shall not exceed 1.
Thermal temperature refers to the temperature at the inlet and outlet of the radiator. If it is not possible to measure there, the distance between the temperature measurement point and the inlet (outlet) of the radiator shall not be greater. This section of the pipe should be strictly insulated, and this dispersed heat should be subtracted when calculating the amount of heat dissipated.
The insulation layer should extend beyond the temperature measurement point.
The accuracy of the measurement of heat medium parameters should meet the following requirements: flow rate: temperature: pressure (absolute): 1 pressure difference: when the pressure difference is greater than 1kpa 5% when the pressure difference is less than 1kpa
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Different radiators have different heat dissipation areas, so it is recommended that you ask the manufacturer for their data.
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Summary. Good evening, dear Kiss It is a pleasure to serve you, and it is enough to use a radiator for you to find a square meter. Because it is installed normally, one square piece is enough, and now it is the kind of narrow radiator.
One square meter needs 60w of heat, which is about the same: the amount of radiator you need = the area of the house * 70 110 * (55 95) kiss I hope my answer will be helpful to you!
Good evening, dear Kiss I am happy to serve you, for you to find a square meter need to use a radiator is enough. Because it is a normal draft, one square piece is enough, and now it is the kind of narrow radiator. A square meter requires 60W of heat, which is about the same:
The amount of radiator you need = house area * 70 110 * (55 95) kiss I hope my answer will help you to shoot it clearly!
Expand your knowledge: Every radiator has its "heat dissipation", which is its "power". Generally, a building with good thermal insulation conditions needs 60w heat per square meter, and Yu Weicong needs 100w heat per square meter like a bungalow.
Therefore, if you choose, it is generally between 70 and 80w per square meter. It should be noted that the heat dissipation of the radiator is under standard working conditions (inlet temperature 95 ° and outlet temperature 70 °), it is difficult to achieve a vertical cherry blossom heat source (the general municipal water supply temperature is between 55 degrees and 85 degrees when it reaches the household, which is the lowest national heating standard of 16 degrees), which requires consumers to pay more attention to it, if the water temperature of your radiator is relatively low and only 55 °, what should I do? If you choose a radiator with a standard heat dissipation capacity of 110W per piece, your house needs 70W of heat per square meter.
Then use the following formula: the amount of radiators you need = house area * 70 110 * (55 95), another algorithm is: the amount of radiators you need = room area (radiator single piece heat dissipation 70-80w), of course, this formula is not scientific, but it is close to the actual value, because it is very troublesome to calculate the amount of radiators.
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Summary. Hello, dear, the service life of the radiator is generally 1, the service life of the radiator is closely related to its own material. For example, the more common steel radiator has a service life of about 5-10 years.
The service life of copper-aluminum composite radiators is 20-30 years, and the cast iron radiator is the old radiator in the past, and it can be used for 50-70 years under the condition of good water quality. 2. When using the radiator, pay attention to the water quality used, which will affect the service life of the radiator. This is because if the water quality is very poor, the radiator is prone to corrosion.
Of course, it is also very relevant to collective heating or household heating, and if it is household heating, it is no problem to use it for about ten years.
Hello, dear, a radiator can bring warm square meters, and the heating area of the radiator is different according to the material and area of the tremor. Like a cast iron radiator, a piece can bring about a square meter of warmth; Copper-aluminum composite radiator, one piece can bring about square meters of warmth; Carbon steel radiator, a piece can be about a warm square let or spike rice.
Hello, dear, the service life of the radiator is generally 1, the service life of the radiator is closely related to its own material. For example, the more common steel ketchine grille, its service life is generally about 5-10 years. The service life of the copper-aluminum composite radiator is 20-30 years, and the cast iron radiator is the old lead-state radiator in the past, and it can be used for 50-70 years under the condition of good water quality.
2. When using the radiator, it is necessary to pay attention to the water quality used, which will affect the life of the radiator. This is because if the water quality is very poor, the radiator is prone to corrosion. Of course, it is also very relevant to collective heating or household heating, and if it is household heating, it is no problem to use it for about ten years.
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1. Radiators.
How much area can be supplied mainly depends on the material of the selected radiator, usually the steel radiator is 600mm high, the monolithic heat dissipation area is about square meters, 1500mm high, the monolithic heat dissipation area is about square meters; The copper-aluminum composite radiator is 600mm high, and the heat dissipation capacity of a single piece is about square meters, and the heat dissipation area of a single piece is about square meters.
2. The radiator factory will mark the radiator monolithic heat dissipation, and the radiator monolithic heat dissipation is estimated by the radiator inlet temperature of 70-90 degrees and the return water temperature of 50-70 degrees, without the heating user in a separate calculation, but because the specific situation of each home is different, the user can increase the surplus by 10-20% according to the actual situation at home.
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The room heat load q is calculated
2. Calculate the heat dissipation area of the radiator.
The heat dissipation area of the radiator q (k the difference between the average temperature of the heat medium and the interior design temperature) The heat sink correction factor.
k is the heat transfer coefficient of the radiator.
The average temperature of the heat medium is the average of the inlet and outlet temperatures of the heat medium.
Radiator correction factor Check the design manual for details.
3. Calculate the number of radiator pieces.
Number of radiator pieces The heat dissipation area of the radiator The amount of heat dissipation of each radiator.
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1. The radiator can supply how much area mainly depends on the material of the selected radiator, usually the steel radiator is 600mm high, the monolithic heat dissipation area is about square meters, 1500mm high, and the monolithic heat dissipation area is about square meters; The copper-aluminum composite radiator is 600mm high, and the heat dissipation capacity of a single piece is about square meters, and the heat dissipation area of a single piece is about square meters.
2. The radiator factory will mark the radiator monolithic heat dissipation, and the radiator monolithic heat dissipation is estimated by the radiator inlet temperature of 70-90 degrees and the return water temperature of 50-70 degrees, without the heating user in a separate calculation, but because the specific situation of each home is different, the user can increase the surplus by 10-20% according to the actual situation at home.
The installation of kitchen radiators, in terms of material, the kitchen is suitable for choosing steel or copper-aluminum composite radiators, the choice of these two types is for heating considerations, they have a large amount of heat dissipation, rapid heating, open 15 minutes before entering, and when they enter, it is already warm like spring, which will not make people wait too long and avoid the pain of freezing; Second, because the kitchen is full of smoke and dust, the items placed in it are easy to accumulate dust, and it will be difficult to clean up if it is too late to clean for a long time, which requires the radiator installed in it to have a smooth surface and easy to clean and take care of. Among the many product types, steel and copper-aluminum composite meet the above requirements and are deeply loved by users.
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