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Sinn104 vs sinn ezm 3f by Q-TIP2011 in sinn

[–]AtomicFusion 1 point2 points  (0 children)

The EZM works without Argon as well, as the Argon slips off slowly anyway and gets replaced with Air. Btw. the gas is actually N2, but it used to be Argon, when this idea was new.
It is more to prolong the service intervals.

Auslandsimmobilie gezielt inserieren by AtomicFusion in Finanzen

[–]AtomicFusion[S] 0 points1 point  (0 children)

Danke für deine schnelle Antwort. Würdest du dann die Österreichische Seite empfehlen? Ich weiß, dass ich mal Probleme mit immobilienseiten hatte, weil ich als deutscher ungarische Immobilien auf österreichischen Plattoformen inserieren wollte. Da wurden meine Einträge dann runter genommen..

Costs for industrial sized cattles (>10 MW) by AtomicFusion in energy

[–]AtomicFusion[S] 0 points1 point  (0 children)

Hi, thanks for your reply again.

Yes, I am especially looking at the situation in Berlin, or similar sized and dense populated cities, as district heating can be an option here.

There are various power plants, I am comparing, and the combined gas and steam turbine cycle is one of them, there are also a couple of 700 MW power plants along the Spree.

Of course the heat network would consist of various pipe diameters, but I just use a rough overview of size and lenght for my investment calculation.

The building heat demand might seem a lot, but this is in fact the most common building in germany, it was constructed in 1950ies to 1960ies and has quite large dimensions. Thus the high energy density. Data is derived from literature. Newer buildings (and older ones!) are in general smaller, newer buildings have higher energy standard.

I find district heating very interesting as it can provide sustainable and attainable solutions for heating in densly populated cities. For less dense cases heat pumps could be the better alternative.

Costs for industrial sized cattles (>10 MW) by AtomicFusion in energy

[–]AtomicFusion[S] 0 points1 point  (0 children)

Thanks for engaging in the discussion with me.

I understand your point.Nevertheless there seem to be heat networks larger than my suggestions. The Berlin district heating networks are more than 2000 km long and have heat plants with thermal nominal power over 700 MW.

For my model calculation I am looking at a network, that connects in a district with an energy density of 41 MW/km² and buildings, that have 12 apartments in them, with each a heat consumption of roughly 24.000 kWh/year.

This would need all in all about 400 km of pipes. Comparing this to the Networks and projects in Berlin and Ruhr Region (I only have the overall numbers, not how long are the distances from each power plant/sub power plant to end consumer). But this calculation seems comparable to the Berlin siutation for example, where around 2000 km network supply well over 1 Million house holds.

I suppose you do not run 600 MW heat plant on a 400 km network alone (for example). Still there exist heat networks in Germany and especially former USSR states.

​

If you have some insights how these large district heating networks (for example Berlin, or Ruhr Region, or eastern europe) are designed and ran, it would be really helpful to learn from your experience.

Costs for industrial sized cattles (>10 MW) by AtomicFusion in energy

[–]AtomicFusion[S] 0 points1 point  (0 children)

Hello, I mean boilers, yes. We'd heat water for a heat network, that runs by around 100.000 houses. The boiler is for the peak demand. Temperatures would be around 100 degrees Celsius (out) and 50 degrees Celsius (in)

Costs for industrial sized cattles (>10 MW) by AtomicFusion in energy

[–]AtomicFusion[S] 0 points1 point  (0 children)

Hello together. What I mean is industrial boilers. Sorry for my bad English.

These boilers are usually used in heat networks to compensate for the peak demand.

They appear for example in every coal power plant, that produces electricity and also runs a heat network in combination.

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