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azelio thermal energy

Long duration energy storage and release, Is AZELIO the answer ?

Azelio is a Swedish company specialising in thermal energy storage with dischargeable power. 

The technology has unique capabilities to produce electricity and heat from the storage on demand 24 hours a day. 

The system stores energy in recycled aluminium and has a total efficiency of up to 90% from energy to heat and electricity. 

It is scalable and cost-efficient from 0.1 MW up to 100 MW and suffers no reduced capacity over time. 

The stored heat energy is then converted into electric energy by a stirling engine which has the ability to provide efficient conversion of thermal energy into a mechanical movement that can generate electricity.

This technology is effective and sustainable. Stirling technology innovation stretches back some 25 years. They also have 2,000,000 operating hours accumulated at landfill sites and solar parks from the UK to Inner Mongolia.

The Stirling solutions are easy to install and maintain,  they last considerably longer than conventional engines. 

A stirling engine is s kind of external combustion engine which converts thermal energy into kinetic energy by heating and cooling the working gas sealed in the cylinders. 

Thermal efficiency of Stirling cycle is as high as Carnot cycle which theoreticaly has the highest thermal efficiency. Combustion of fuel is continuous, so it is rather easy to control exhaust emission. Stirling engine has high possibility to achieve low level of noise and vibration because cyclic torque fluctuation is smooth thanks to non-explosive combustion. 

The Stirling engine, invented by Robert Stirling in 1816, is a heat engine that is very different from the internal combustion engine. The Stirling engine uses the Stirling cycle, which is unlike the cycles used in internal combustion engines and has the potential to be much more efficient than a gasoline or diesel engine. The Stirling engine has six main components: containers, piston, displacer, crankshaft, flywheel, and external heat source. 

The air at the bottom heats up, creating pressure on the small power piston, which moves up and rotates the wheel. The rotating wheel moves the big displacer down. The air cools down at the top, reducing the pressure and allowing the power piston to move down. This motion of the power piston moves the displacer upwards and the air at the bottom is heated again.

The Stirling engine is a closed-cycle regenerative heat engine with permanently sealed gas, wherein the heat source is generated external to the engine. The engine is designed such that the gas is compressed in the cooler part and expanded in the hotter part ensuing a net conversion of heat into work. Although air is the traditional working fluid for Stirling engines, hydrogen and helium are also employed for improved performance due to their better thermal properties.

Combustion occurs continuously in Stirling engines, which ensures clean burning. The efficiency of this engine is not susceptible to the fuel type or quality. That is why the Stirling engine is more efficient than hybrid electric automotive applications. The Stirling engine is attuned with both conventional and renewable energy sources, making it a future solution to fossil fuel depletion and climate change problems.

Combustion occurs continuously in Stirling engines, which ensures clean burning. Moreover, the efficiency of this engine is not susceptible to the fuel type or quality. That is why the Stirling engine is more effectual than SI 2engines for hybrid electric automotive applications. In addition, the Stirling engine is attuned with both conventional and renewable energy sources, making it a future solution to fossil fuel depletion and climate change problems.

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