Integrated Efficiency: Difference between revisions
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Efficiency can be point efficiency vs integrated efficiency. | Efficiency can be point efficiency vs integrated efficiency. Point efficiency is efficiency only considering one variable or factor. Integrated efficiency involves considering multiple factors for a more balanced view. Other technical factors, as well as social and environmental factors - may be considered for a more balanced view. | ||
For example, higher fuel efficiency of an engine may be an example of point efficiency, but integrated efficiency is broader. For example, OSE's engine strategy may be less fuel efficient, but more cost effective by 1000x due to multipurpose functionality via modularity (10x), and 10x via lifetime design (lower cost to maintain, by a factor of 10), and another 10x by open source automation - meaning the cost of doing a task is reduced by 10x. So it's all in how efficiency is defined. | For example, higher fuel efficiency of an engine may be an example of point efficiency, but integrated efficiency is broader. For example, OSE's engine strategy may be less fuel efficient, but more cost effective by 1000x due to multipurpose functionality via modularity (10x), and 10x via lifetime design (lower cost to maintain, by a factor of 10), and another 10x by open source automation - meaning the cost of doing a task is reduced by 10x. So it's all in how efficiency is defined. | ||
For example, a maintainable internal combustion engine may be 20% round trip efficient compared to a fuel cell (50% [http://www.esru.strath.ac.uk/EandE/Web_sites/02-03/hydrogen_economy/Round%20Trip%20Efficiency.htm#:~:text=Renewable%20power%20sources%20give%20a,roundtrip%20efficiency%20of%20%3C%2013.1%20%25.&text=Currently%20fuel%20cells%20are%2050,efficiency%20could%20rise%20to%2060%25.]. However, Toyota recently developed a 38% efficient IC gas engine [https://www.thedrive.com/tech/18919/toyota-develops-worlds-most-thermally-efficient-2-0-liter-engine#:~:text=Most%20internal%20combustion%20engines%20are,to%20use%20propelling%20the%20vehicle.] | =Taking it Further= | ||
For example, a maintainable internal combustion engine may be 20% round trip efficient compared to a fuel cell (50% [http://www.esru.strath.ac.uk/EandE/Web_sites/02-03/hydrogen_economy/Round%20Trip%20Efficiency.htm#:~:text=Renewable%20power%20sources%20give%20a,roundtrip%20efficiency%20of%20%3C%2013.1%20%25.&text=Currently%20fuel%20cells%20are%2050,efficiency%20could%20rise%20to%2060%25.]. However, Toyota recently developed a 38% efficient IC gas engine [https://www.thedrive.com/tech/18919/toyota-develops-worlds-most-thermally-efficient-2-0-liter-engine#:~:text=Most%20internal%20combustion%20engines%20are,to%20use%20propelling%20the%20vehicle.]. However, if the ICE is designed for a lifetime, then it can last many more hours. Thus, if we consider developments and lifetime, the sole consideration of point efficiency may not be as importantu. For certain, if low cost solar hydrogen is available, the fuel becomes a non-scarce good. | |||
Revision as of 15:32, 30 October 2020
Efficiency can be point efficiency vs integrated efficiency. Point efficiency is efficiency only considering one variable or factor. Integrated efficiency involves considering multiple factors for a more balanced view. Other technical factors, as well as social and environmental factors - may be considered for a more balanced view.
For example, higher fuel efficiency of an engine may be an example of point efficiency, but integrated efficiency is broader. For example, OSE's engine strategy may be less fuel efficient, but more cost effective by 1000x due to multipurpose functionality via modularity (10x), and 10x via lifetime design (lower cost to maintain, by a factor of 10), and another 10x by open source automation - meaning the cost of doing a task is reduced by 10x. So it's all in how efficiency is defined.
Taking it Further
For example, a maintainable internal combustion engine may be 20% round trip efficient compared to a fuel cell (50% [1]. However, Toyota recently developed a 38% efficient IC gas engine [2]. However, if the ICE is designed for a lifetime, then it can last many more hours. Thus, if we consider developments and lifetime, the sole consideration of point efficiency may not be as importantu. For certain, if low cost solar hydrogen is available, the fuel becomes a non-scarce good.