Air conditioning has become the maximum load in summer electricity 1 ℃ 1 day power saving 4.5 degrees
Summer, air conditioning has become an indispensable cool air "artifact", and even netizens dubbed "This life is air to give."
But in the peak electricity, air conditioning has become a heavy burden. On July 13 at 12:26, the maximum load of the Beijing area power grid reached 22.54 million kilowatts, a historical record.
How to use air conditioning to save power, thereby reducing the electricity pressure? As early as 2007, the General Office of the State Council has issued a notice to require special units such as hospitals, all public buildings within the unit indoor air conditioning temperature setting of not less than 26 ℃. Recently, the capital of civilization, the Beijing Municipal Management Committee and other departments to all the public initiative, the air conditioning temperature once again.
Then the problem came, the temperature was elevated once, how much can save electricity? In this regard, the State Grid Beijing Electric Power Research Institute to do the experiment.
The experimental staff were to the central office of the central air conditioning to 26 ℃ and 27 ℃ running 12 hours, and select the day, two time periods at night two groups of experiments. The results show that the temperature increased by one degree Celsius, day and night 12 hours average power were reduced by 17.68% and 25.96%, the entire building were saving 67.8 degrees and 71.04 degrees.
Laboratory personnel also conducted an analysis of home air conditioning experiments. The results show that a 1.5 (electrical power consumption, 1 h = 1 horsepower = 735 watts) air conditioning, if the temperature set increased by one degree Celsius, continuous operation for 24 hours, the average power can be reduced by about 4.5 degrees.
Experimental object: The Institute of the central building air conditioning. Office building a total of 8 layers, the whole building construction area of 10,800 square meters. The use of fixed-frequency central air conditioning, by the four modular low-temperature air source heat pump unit, each unit rated cooling power of 81.2 kilowatts.
experiment procedure:
1, the experimental staff first a power quality tester test end connected to the main building air conditioning unit dedicated outlet, 24 hours continuous record air conditioning unit voltage and current. During the measurement process, every two hours, the staff will check the working status of the measuring equipment, the air conditioning operation to record, to avoid the automatic shutdown of air conditioning, etc. affect the experimental results.
2, the experiment selected four time periods as a sample, the two pairs of comparison.
July 28 (Friday) 19:00 to July 29 (Saturday) 7:00 for the first time, July 29 (Saturday) 7:00 to 19:00 the same day for the second time, air conditioning temperature Set to 26 ° C.
July 7 (Saturday) from 19:00 to July 30 (Sunday) 7:00 for the third period, July 30 (Sunday) 7:00 to 19:00 the same day for the fourth period, air conditioning The temperature is set to 27 ° C.
State Power Grid Beijing Electric Power Research Institute Power Technology Engineer Zhang Yan explained that the test selected two days in the weekend, to minimize the artificial adjustment of air conditioning temperature and other electrical equipment (such as computers, lighting, etc.) to open the interference for the experiment. The experiment was carried out at different times during the day and night, in order to avoid the effect of changes in outdoor temperature on the measured data.
3, in the data analysis laboratory, researchers will power quality tester data into the computer, the measurement results for analysis (see the right table).
The experimenter introduced the data from the power quality tester into the software and obtained the trend of the central air conditioning from 26 ℃ to 27 ℃.
■ Experimental results
Central air conditioning high 1 ℃
Night average power down 25.96%
The experimental staff will be the first and third time period of comparative analysis, found that the daytime air conditioning is set to 26 ℃ when the average power of 31.96 kilowatts, set to 27 ℃ when the average power of 26.31 kilowatts. The average power reduced by 17.68%, saving power 67.8 degrees.
The second and fourth time periods of the comparative analysis show that the night air conditioning is set at 26 ℃ and 27 ℃, the average power of 22.80 kW and 16.88 kW. The average power reduction of 25.96%, saving 71.04 degrees.
"Visible, air conditioning from 26 ℃ transferred to 27 ℃, raised once for saving electricity, saving energy is still relatively large." Zhang Yan told reporters.
Household air conditioning high 1 ℃
24 hours average power down 4.5 degrees
At the same time, the experimental staff on the home air conditioning temperature energy consumption conducted an analysis experiment.
The object of the experiment is a 1.5-rated air conditioner with a cooling area of between 25 and 30 square meters. Experiment, the average temperature of about 32 ℃, the experimental staff were 26 ℃ and 27 ℃ to air-conditioning continuous operation for 24 hours.
The results show that when the temperature increased by one degree Celsius, air conditioning average power reduction of 17.1%, the average power reduction of about 4.5 degrees.
Zhang Yan said that the use of household air conditioning cooling area, the environment is quite different, air conditioning power, brand and so different, so the experimental results only as a reference. Zhang Yan said that at present a lot of home air conditioning is already inverter air conditioner, and most of the central air conditioning is still fixed frequency air conditioning, so the energy consumption of home air conditioning is relatively low, more environmentally friendly.
■ reminders
Air conditioning temperature is too hot and more expensive
Beijing Institute of Power Grid Technology Center engineers Zhang Yan told reporters that the human body is more comfortable ambient temperature is 26 ℃ -28 ℃, in ensuring the comfort of the human case, the higher the air conditioning temperature, the more energy savings.
"If the outdoor is more than 35 ℃, air conditioning set at a very low temperature, how it can not reach, the compressor will run for a long time, energy consumption will be particularly large.If set at 27 ℃, reached this temperature, Air conditioning energy consumption will be reduced. "Zhang Yan suggested that in high temperature weather, the air conditioning temperature increase, saving electricity more obvious.
Air conditioning has become the summer maximum load
July 13 at 12:26, the Beijing area power grid maximum load reached 22.54 million kilowatts, a historical record.
According to the State Grid Beijing Electric Power Research Institute grid technology center estimates, during this period, air conditioning cooling load accounted for 49.2%. Year-on-year 2016 maximum load time, air conditioning cooling load accounted for an increase of 2.02%. According to the State Grid Beijing Electric Power Company released data, at 12:00 on July 12, air conditioning cooling load accounted for about 52%, for the first time more than half of the whole network load.
In other words, the use of air conditioning has become the largest source of summer electricity load. Sun Peigang, director of the General Affairs Department of the State Grid Corporation of China, said that in order to meet the next heavy load of electricity, I hope the public in response to government initiatives, air conditioning transferred to 26 ℃ or more, to participate in energy conservation.
But in the peak electricity, air conditioning has become a heavy burden. On July 13 at 12:26, the maximum load of the Beijing area power grid reached 22.54 million kilowatts, a historical record.
How to use air conditioning to save power, thereby reducing the electricity pressure? As early as 2007, the General Office of the State Council has issued a notice to require special units such as hospitals, all public buildings within the unit indoor air conditioning temperature setting of not less than 26 ℃. Recently, the capital of civilization, the Beijing Municipal Management Committee and other departments to all the public initiative, the air conditioning temperature once again.
Then the problem came, the temperature was elevated once, how much can save electricity? In this regard, the State Grid Beijing Electric Power Research Institute to do the experiment.
The experimental staff were to the central office of the central air conditioning to 26 ℃ and 27 ℃ running 12 hours, and select the day, two time periods at night two groups of experiments. The results show that the temperature increased by one degree Celsius, day and night 12 hours average power were reduced by 17.68% and 25.96%, the entire building were saving 67.8 degrees and 71.04 degrees.
Laboratory personnel also conducted an analysis of home air conditioning experiments. The results show that a 1.5 (electrical power consumption, 1 h = 1 horsepower = 735 watts) air conditioning, if the temperature set increased by one degree Celsius, continuous operation for 24 hours, the average power can be reduced by about 4.5 degrees.
Experimental object: The Institute of the central building air conditioning. Office building a total of 8 layers, the whole building construction area of 10,800 square meters. The use of fixed-frequency central air conditioning, by the four modular low-temperature air source heat pump unit, each unit rated cooling power of 81.2 kilowatts.
experiment procedure:
1, the experimental staff first a power quality tester test end connected to the main building air conditioning unit dedicated outlet, 24 hours continuous record air conditioning unit voltage and current. During the measurement process, every two hours, the staff will check the working status of the measuring equipment, the air conditioning operation to record, to avoid the automatic shutdown of air conditioning, etc. affect the experimental results.
2, the experiment selected four time periods as a sample, the two pairs of comparison.
July 28 (Friday) 19:00 to July 29 (Saturday) 7:00 for the first time, July 29 (Saturday) 7:00 to 19:00 the same day for the second time, air conditioning temperature Set to 26 ° C.
July 7 (Saturday) from 19:00 to July 30 (Sunday) 7:00 for the third period, July 30 (Sunday) 7:00 to 19:00 the same day for the fourth period, air conditioning The temperature is set to 27 ° C.
State Power Grid Beijing Electric Power Research Institute Power Technology Engineer Zhang Yan explained that the test selected two days in the weekend, to minimize the artificial adjustment of air conditioning temperature and other electrical equipment (such as computers, lighting, etc.) to open the interference for the experiment. The experiment was carried out at different times during the day and night, in order to avoid the effect of changes in outdoor temperature on the measured data.
3, in the data analysis laboratory, researchers will power quality tester data into the computer, the measurement results for analysis (see the right table).
The experimenter introduced the data from the power quality tester into the software and obtained the trend of the central air conditioning from 26 ℃ to 27 ℃.
■ Experimental results
Central air conditioning high 1 ℃
Night average power down 25.96%
The experimental staff will be the first and third time period of comparative analysis, found that the daytime air conditioning is set to 26 ℃ when the average power of 31.96 kilowatts, set to 27 ℃ when the average power of 26.31 kilowatts. The average power reduced by 17.68%, saving power 67.8 degrees.
The second and fourth time periods of the comparative analysis show that the night air conditioning is set at 26 ℃ and 27 ℃, the average power of 22.80 kW and 16.88 kW. The average power reduction of 25.96%, saving 71.04 degrees.
"Visible, air conditioning from 26 ℃ transferred to 27 ℃, raised once for saving electricity, saving energy is still relatively large." Zhang Yan told reporters.
Household air conditioning high 1 ℃
24 hours average power down 4.5 degrees
At the same time, the experimental staff on the home air conditioning temperature energy consumption conducted an analysis experiment.
The object of the experiment is a 1.5-rated air conditioner with a cooling area of between 25 and 30 square meters. Experiment, the average temperature of about 32 ℃, the experimental staff were 26 ℃ and 27 ℃ to air-conditioning continuous operation for 24 hours.
The results show that when the temperature increased by one degree Celsius, air conditioning average power reduction of 17.1%, the average power reduction of about 4.5 degrees.
Zhang Yan said that the use of household air conditioning cooling area, the environment is quite different, air conditioning power, brand and so different, so the experimental results only as a reference. Zhang Yan said that at present a lot of home air conditioning is already inverter air conditioner, and most of the central air conditioning is still fixed frequency air conditioning, so the energy consumption of home air conditioning is relatively low, more environmentally friendly.
■ reminders
Air conditioning temperature is too hot and more expensive
Beijing Institute of Power Grid Technology Center engineers Zhang Yan told reporters that the human body is more comfortable ambient temperature is 26 ℃ -28 ℃, in ensuring the comfort of the human case, the higher the air conditioning temperature, the more energy savings.
"If the outdoor is more than 35 ℃, air conditioning set at a very low temperature, how it can not reach, the compressor will run for a long time, energy consumption will be particularly large.If set at 27 ℃, reached this temperature, Air conditioning energy consumption will be reduced. "Zhang Yan suggested that in high temperature weather, the air conditioning temperature increase, saving electricity more obvious.
Air conditioning has become the summer maximum load
July 13 at 12:26, the Beijing area power grid maximum load reached 22.54 million kilowatts, a historical record.
According to the State Grid Beijing Electric Power Research Institute grid technology center estimates, during this period, air conditioning cooling load accounted for 49.2%. Year-on-year 2016 maximum load time, air conditioning cooling load accounted for an increase of 2.02%. According to the State Grid Beijing Electric Power Company released data, at 12:00 on July 12, air conditioning cooling load accounted for about 52%, for the first time more than half of the whole network load.
In other words, the use of air conditioning has become the largest source of summer electricity load. Sun Peigang, director of the General Affairs Department of the State Grid Corporation of China, said that in order to meet the next heavy load of electricity, I hope the public in response to government initiatives, air conditioning transferred to 26 ℃ or more, to participate in energy conservation.
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