What are the cooling ton parameters of the closed cooling tower? How to convert the cooling ton of the closed cooling tower?
When many people first come into contact with a closed cooling tower, they will be confused by some terms of a closed cooling tower. Terms like cold ton and water ton seem to be very different, so why not use closed cooling towers? There are two data in the cooling tower? Today, the editor has compiled a lot of knowledge points about cooling tons. If you are interested, please read it with me.
First of all, the cold ton is also known as the freezing ton, the unit of refrigeration. The cold ton represents the cooling capacity required to freeze 1 ton of saturated water at 0 °C to 0 °C ice in 24 hours (Note: 1 cold ton is to make 1 ton of 0 °C water Refrigeration capacity required to become ice at 0°C); 1 ton of water at 0°C, the ability to convert into ice at 0°C. Freezing ton indicates the refrigeration capacity of the freezer. For example, a 40kw air conditioner has a cooling capacity of 40*860=34,400 kcal.
1 American cold ton = 3024 kilocalories/hour (kcal/h) = 3.517 kilowatts (KW)
1 Japanese cold ton = 3320 kilocalories/hour (kcal/h) = 3.861 kilowatts (KW)
1 horsepower (or 1 horse power) = 735.5 watts (W) = 0.7355 kilowatts (KW)
1 kilocalorie/hour (kcal/h) = 1.163 watts (W)
Celsius temperature ℃ = (Fahrenheit °F-32) 5/9
1P=2.5KW=735.5W: Note: 2.5kw corresponds to cooling capacity, and 735.5w corresponds to electric power.
One P is actually the rated input power of the compressor (0.7355KW), plus the indoor and outdoor fan and electric control power, the air conditioner may be 0.9KW (for example), if the energy efficiency ratio of this air conditioner under standard conditions is 2.6, it is not difficult to calculate the actual cooling capacity of the air conditioner 2.6×0.9=2.34KW, but the energy efficiency ratio (EER) of each manufacturer’s air conditioner is different, the same compressor will get different cooling capacity, so one is equivalent to In terms of cooling capacity, it is a range. If the energy efficiency ratio is getting higher and higher, the range of cooling capacity per horse will be larger.
First of all, it is necessary to understand the unit of heat. Heat energy is also a kind of energy. The international unit of work and energy is joule. Joule is equivalent to a newton of force (N). The work done. The symbol of Joule is J. The legal unit of heat in my country is J.
Under standard atmospheric pressure, 1g of water is heated or cooled, and when its temperature increases or decreases by 1 degree, the added or released heat is called 1 calorie, expressed in cal. In engineering, the heat is often expressed as 1000 times the calorie. , called kilocalorie or kilocalorie, expressed in kcal.
1kJ (kilojoule) = 0.239kcal (kilocal)
1kcal (kilocal)=4.19kJ (kilojoule)
1 American cold ton=3024kcal/h=3.51kw
1 Japanese cold ton=3320kcal/h=3.86kw
For example, a 40kw air conditioner has a cooling capacity of 40*860=34,400 kcal
Civil air conditioners like to use P as the unit, 1P=0.735kw, and the general energy efficiency ratio is 3.2, that is, the cooling capacity is 2352w, and the conversion into kcal is about 2022 kcal.
It can be said that the cooling capacity of 1P air conditioner is 2000 kcal.
Under standard atmospheric pressure, 1Lb (pounds) (1Lb=0.454kg) of water is heated or cooled, and the heat added or removed when its temperature increases or decreases by 1 degree Fahrenheit is called a British thermal unit, the symbol is Btu .
In the refrigeration system, the cooling ton defined for the refrigerator and the cooling tower are related, but they are not the same. The former is the cooling ton of cooling capacity, and the latter is the cooling ton of heat dissipation. Ton".
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