Categorie: system boundaries
Everything that doesn’t last at least 50 years is a step backward. It signifies a decline in the physical-biological system potential. If that system—Earth—is already fully burdened, beyond regeneration capacity, or I other words: if we are living above our personal resource bubble (beyond our physical-biological means), it becomes extremely…
Our biggest problem is that people, or humanity, do not observe or respect boundaries , to anything, and when facing them, they also want to constantly push those boundaries. And when starting to talk about boundaries, it quickly becomes a discussion about the freedom to choose for oneself. During Corona,…
Last time I wrote about about project development, and how everything was optimized within project borders, but the effects outside the project boundaries were neglected. But between architect and client, it’s just the same, and even worse, as became evident once again when I attended a presentation about a new…
A building is usually assessed sec, as a building. Or as a complex of buildings, within the project development boundary, both energetically and financially. See previous contribution. But that is often at the expense of effects outside the project boundary. A few examples can clarify this. Some years ago I…
In projects with students, it regularly clashes between economic and environmental cq climate objectives, and thus also between real estate and building physics tutors. Or between ‘the project developer’ and the ‘energy calculator’. And the battle is fought over the heads of the students ; they have to find a…
It is common in construction to normalize per m2 floor: such as e.g. energy, material, ventilation needs, or even costs and investments. But when it comes to the national requirements for housing in fact you should not calculate per m2 floor. Because it’s not about the impact per 1 m2…
In the agricultural project that I described in my previous contribution [1], which was initially about the EROI, the energy return on energy investment, I subsequently calculated the effects back to land’input’. But then the thought soon arised: would is also be possible to develop a LROLI, a Land return…
Storage (binding) of CO2 in wood/timber is a hot issue at the moment*. But how should that be calculated really? Before I go into more detail, a few preliminary remarks: (the part on ‘calculating’ has been later added, and ‘CO2’ has been adapted) Building in wood is always a good…
Life has an end, but is there also an ‘end of life’, for products and buildings? Which is frequently used in science, like in building evaluations calculating with a maximum life span, but seems weird. It is understandable in trade, for product developers, that want things to be replaced at…
Researchers and other involved parties are regularly at odds with each other: does buying an electric car compared with a fuel driven car reduce CO2 emissions or not. A few weeks ago, another such investigation was in the news. [1] Yes, indeed, was the conclusion. I have no doubts whatsoever…
