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can jet engines clean up delhi\'s foul air?
by：Yovog
2023-08-31
Sometime next year, if all goes well, a decommissioned jet engine will be installed on a flatbed trailer and taken to a coal-fired car
Power Plant in Delhi.
When the exhaust nozzle points to the sky, the engine will be placed near the chimney and opened.
When the engine accelerates, it will produce a nozzle speed of 400 per second (1,440km/h; 900mph)
This is more or less the speed of sound.
The exhaust will produce a powerful updraft, which, simply put, will blow the plant\'s emissions to a higher level, higher than a weather phenomenon called the inverse temperature, where, A layer of cold air is blocked from smoke by a warm \"lid.
The jet exhaust gas will serve as a \"virtual chimney\" to breathe in and deliver smoke, making Delhi\'s air the world\'s most toxic air.
A jet engine can handle emissions from 1,000 MW power plants.
So can the jet engine help clean up the dirty air in Delhi?
The teams from the United States, India and Singapore think so.
\"This could lead to a new technology to ease smog being successfully implemented around the world,\" said chief researcher Moshe Alamaro . \" I was told by an aviation engineer and atmospheric scientist at MIT.
\"The project can use both decommissioned and commercial engines and has the potential to add value to many decommissioned propulsion systems.
\"Delhi is the ideal candidate for this experiment.
The widespread use of festive fireworks, the burning of garbage by the poor in the city, coupled with farm waste around the city, vehicle emissions and construction dust, all contribute to the city\'s thick \"peas-soup\" fogs.
The winter situation got worse: last month, schools closed, construction and demolition works were suspended, people wore masks and were asked to work from home.
The move comes after pm2. 5 levels. 5 -
Tiny particles that affect the lungs.
The World Health Organization believes the level of security has soared to more than 90 times, and the federal government\'s norms have soared to more than 15 times.
Jet engine experiment outside coal
As coal accounts for more than 60% of power generation in India, coal-fired power plants make sense.
In the next two years, China will overtake China as the world\'s largest importer of thermal coal. Coal-
Burning energy can lead to premature death of more than 100,000 people, with millions of cases of asthma and respiratory diseases.
In addition, 1,000 of emissionsmegawatt coal-
The thermal power plant is equivalent to the emissions of about 500,000 cars.
Forty-five years ago, the Soviet Union used jet engines to boost rainfall, scientists said.
\"They have had some success,\" said Dr. Alamaro . \".
\"As far as I know, no one has tried to use a jet engine to ease the smoke.
The farmers also rented helicopters to hover over their fields to \"stir up and destroy the land\" to protect their crops.
Next month, Dr. Alamaro will join some of India\'s top scientists and government agencies in a workshop to plan the experiment.
There are some concerns: noise from the jet engine, for example.
\"At first,\" he said, \"the jet engine will be tested in remote locations, not necessarily near the power plant, to observe the jet properties and to optimize.
\"Scientists say there is no basis for concerns about air pollution emissions from jet engines because their emissions are\" much cleaner than power plants per unit \".
India and the US Air Force reportedly provided retired jet engines for experiments.
Scientists are in talks with Tata Group, a private power producer, to use one of their factories as an experimental site.
Before the test, meteorological data in the area and information about the frequency of smog will be essential.
Drones will be used before and after the experiment.
Critics of the experiment in the scheme doubt whether jet aircraft\'s exhaust capacity is enough to make a virtual chimney and blow out the smoke, and question the big cities like Delhi, is it possible to use expensive jet engines on a large scale to control air pollution.
But Dr. Alamaro is optimistic.
\"Every new technology should start with the most irresistible road to success,\" he said . \"
\"Near the power plant, the emission concentration of coal is very high.
\"So, near power plants, it\'s more effective to raise emissions of jet engines than the rest of the city, which is plagued by smog.
\"That said, we also plan to use the jet system to lift the less concentrated smoke inside and around the city.
\"For example, the jet system can be placed near the highway with high vehicle emissions, so the jet is more efficient than elsewhere in the city.
Dr. Alamaro said that if successful, this method can be used to control air pollution \"anytime, anywhere, away from power plants, under normal atmospheric conditions.
Soon we will know if the jet engine can really help clean the dirty air in Delhi.
Power Plant in Delhi.
When the exhaust nozzle points to the sky, the engine will be placed near the chimney and opened.
When the engine accelerates, it will produce a nozzle speed of 400 per second (1,440km/h; 900mph)
This is more or less the speed of sound.
The exhaust will produce a powerful updraft, which, simply put, will blow the plant\'s emissions to a higher level, higher than a weather phenomenon called the inverse temperature, where, A layer of cold air is blocked from smoke by a warm \"lid.
The jet exhaust gas will serve as a \"virtual chimney\" to breathe in and deliver smoke, making Delhi\'s air the world\'s most toxic air.
A jet engine can handle emissions from 1,000 MW power plants.
So can the jet engine help clean up the dirty air in Delhi?
The teams from the United States, India and Singapore think so.
\"This could lead to a new technology to ease smog being successfully implemented around the world,\" said chief researcher Moshe Alamaro . \" I was told by an aviation engineer and atmospheric scientist at MIT.
\"The project can use both decommissioned and commercial engines and has the potential to add value to many decommissioned propulsion systems.
\"Delhi is the ideal candidate for this experiment.
The widespread use of festive fireworks, the burning of garbage by the poor in the city, coupled with farm waste around the city, vehicle emissions and construction dust, all contribute to the city\'s thick \"peas-soup\" fogs.
The winter situation got worse: last month, schools closed, construction and demolition works were suspended, people wore masks and were asked to work from home.
The move comes after pm2. 5 levels. 5 -
Tiny particles that affect the lungs.
The World Health Organization believes the level of security has soared to more than 90 times, and the federal government\'s norms have soared to more than 15 times.
Jet engine experiment outside coal
As coal accounts for more than 60% of power generation in India, coal-fired power plants make sense.
In the next two years, China will overtake China as the world\'s largest importer of thermal coal. Coal-
Burning energy can lead to premature death of more than 100,000 people, with millions of cases of asthma and respiratory diseases.
In addition, 1,000 of emissionsmegawatt coal-
The thermal power plant is equivalent to the emissions of about 500,000 cars.
Forty-five years ago, the Soviet Union used jet engines to boost rainfall, scientists said.
\"They have had some success,\" said Dr. Alamaro . \".
\"As far as I know, no one has tried to use a jet engine to ease the smoke.
The farmers also rented helicopters to hover over their fields to \"stir up and destroy the land\" to protect their crops.
Next month, Dr. Alamaro will join some of India\'s top scientists and government agencies in a workshop to plan the experiment.
There are some concerns: noise from the jet engine, for example.
\"At first,\" he said, \"the jet engine will be tested in remote locations, not necessarily near the power plant, to observe the jet properties and to optimize.
\"Scientists say there is no basis for concerns about air pollution emissions from jet engines because their emissions are\" much cleaner than power plants per unit \".
India and the US Air Force reportedly provided retired jet engines for experiments.
Scientists are in talks with Tata Group, a private power producer, to use one of their factories as an experimental site.
Before the test, meteorological data in the area and information about the frequency of smog will be essential.
Drones will be used before and after the experiment.
Critics of the experiment in the scheme doubt whether jet aircraft\'s exhaust capacity is enough to make a virtual chimney and blow out the smoke, and question the big cities like Delhi, is it possible to use expensive jet engines on a large scale to control air pollution.
But Dr. Alamaro is optimistic.
\"Every new technology should start with the most irresistible road to success,\" he said . \"
\"Near the power plant, the emission concentration of coal is very high.
\"So, near power plants, it\'s more effective to raise emissions of jet engines than the rest of the city, which is plagued by smog.
\"That said, we also plan to use the jet system to lift the less concentrated smoke inside and around the city.
\"For example, the jet system can be placed near the highway with high vehicle emissions, so the jet is more efficient than elsewhere in the city.
Dr. Alamaro said that if successful, this method can be used to control air pollution \"anytime, anywhere, away from power plants, under normal atmospheric conditions.
Soon we will know if the jet engine can really help clean the dirty air in Delhi.
