The city of Esbjerg, Denmark is replacing its coal fired city heating system with an amazing giant heat pump, biomass boilers and waste burning boilers. The refrigerant is CO2. Read the description. This is a long 43 minutes but is very comprehensive and interesting. The cost is about 40 million Euros.
Archive for the ‘Electromechanical’ Category:
2023-12-07 Laser Weed Killer, Scarecrow, Bug Killer
These autonomous laser devices can be working in the fields around the clock. They could severely reduce the need for herbicides (weed killer chemicals), and insecticides which are also harmful to good insects and other animals and pollute the environment. It’s highly unlikely that a weed will become resistant to a Laser! They can be
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2023-11-24 Tesla Will Stop Using Rare Earth Metals In Motors
According to the article the Model 3 uses 520 grams of neodymium. https://www.popularmechanics.com/cars/hybrid-electric/a43773686/rare-earth-metal-motor-tesla/
2023-08-10 MEMS Accelerometer Micro Photo
Amazing how tiny the pieces are. The photo was taken with an electron microscope. More about MEMS accelerometers here: https://mems.polimi.it/index.php/accelerometers?fbclid=IwAR2riO6QcedkMZXuZJCsXvM2evY9m_Dv8fbpsf7GwjQdw8dL_NyYaVugmYo
2021-11-27 Electrostatic Machines Website
This website has a huge amount of electrostatic machine projects. Wimshurst, electrophorus, Van De Graaf, and much more. http://www.coe.ufrj.br/~acmq/electrostatic.html
2021-10-29 Replacing The Small ICEs With Non-Fossil Fuel Motors
While the US is on its way to replacing ICEVs – internal combustion engine vehicles – with electric vehicles, there are millions of small ICEs used for many purposes such as lawnmowers, welding generators, cement mixers, and scores of other portable applications that require independence from the electric grid. One answer might be that these
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2021-09-18 Land Care Robot Electrifies Tasks
This ad popped up and I had to watch this little workhorse do its jobs. It gave me several thoughts of what it could be used for. It even can work in the dark and in the rain. It said that it’s 64 HP and $14,800.00. When I was a kid, I remember seeing articles
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2021-06-23 Glass Fiber & Concrete Flywheel For Storage
This French company uses glass fiber reinforced flywheels for energy storage instead of steel. Quote: << Gennesseaux went on to say. “We are around 10 grams of CO2 per kWh, while lithium-ion batteries are around 40g CO2/kWh, at the same level as steel flywheels.”>> Initially the flywheel will store 10 kWh. It’s buried underground. Steel
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2021-03-14 Wright’s Law: High Volume Manufacturing Praised By Elon
The Tesla factories are “The machines that make the machines” and Elon Musk, from his own experience, understands how complex and difficult it is to get a factory running smoothly at full speed. Wright’s Law Explained by Ark Investments https://ark-invest.com/wrights-law/ There are good snips of the factory (in Shanghai?) in this YouTube video, especially around
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2021-01-17 MIT’s Hybrid-Electric Airplane
A solution to adding pollution control to jet engines. https://interestingengineering.com/mits-new-hybrid-electric-plane-could-reduce-aviation-pollution-95-percent
