Luis Sánchez García
@luissanchezgarcia.bsky.social
ICCP/Civil Engineer PhD student at Halmstad and LTH working with district heating
Control de policía y cambio de tripulación entre DB y DSB. El número de pasajeros suele ser mínimo.
November 6, 2025 at 10:59 AM
Control de policía y cambio de tripulación entre DB y DSB. El número de pasajeros suele ser mínimo.
Me sorprenden los tiempos de viaje a pesar de que la orografía sea horrible; con una velocidad media inferior a 100 km/h. ¿Hasta qué punto desplazaría al vehículo privado y al autobús?
October 13, 2025 at 8:44 AM
Me sorprenden los tiempos de viaje a pesar de que la orografía sea horrible; con una velocidad media inferior a 100 km/h. ¿Hasta qué punto desplazaría al vehículo privado y al autobús?
In the upper right picture you can see a bit of the old train station of Kastrup, identical to the terminus in Dragør.
September 22, 2025 at 8:40 PM
In the upper right picture you can see a bit of the old train station of Kastrup, identical to the terminus in Dragør.
Dank u!
Curious that there are some stops to lenition.
Curious that there are some stops to lenition.
September 21, 2025 at 9:07 PM
Dank u!
Curious that there are some stops to lenition.
Curious that there are some stops to lenition.
I completele agree with you about the lack of trees in the city. This is one of the few noticeable differences between Copenhagen and the enclave of Frederiksberg. Way more trees in the latter
www.dn.dk/nyheder/pa-f...
www.dn.dk/nyheder/pa-f...
På Frederiksberg skal alle borgere kunne se et træ fra deres bolig - Danmarks Naturfredningsforening
Grønne gader, brede stammer og fyldige trækroner er ikke det første, man forbinder med en storby. Ikke desto mindre er det virkeligheden i Frederiksberg Kommune, der har deres helt egen træpolitik.
www.dn.dk
September 21, 2025 at 9:03 PM
I completele agree with you about the lack of trees in the city. This is one of the few noticeable differences between Copenhagen and the enclave of Frederiksberg. Way more trees in the latter
www.dn.dk/nyheder/pa-f...
www.dn.dk/nyheder/pa-f...
Great post as always! Shouldn’t the d in Spanish nido have disappeared?
September 21, 2025 at 8:53 PM
Great post as always! Shouldn’t the d in Spanish nido have disappeared?
On the positiv side, Paris also has one of the largest district cooling systems in Europe
www.fraicheurdeparis.fr/carte-du-res...
www.districtenergyaward.org/wp-content/u...
www.fraicheurdeparis.fr/carte-du-res...
www.districtenergyaward.org/wp-content/u...
Carte du réseau - Fraicheur de Paris
Carte du réseau de froid urbain de la Ville de Paris : découvrez le tracé du réseau, nos centrales de production et nos chantiers en cours.
www.fraicheurdeparis.fr
August 19, 2025 at 12:01 AM
On the positiv side, Paris also has one of the largest district cooling systems in Europe
www.fraicheurdeparis.fr/carte-du-res...
www.districtenergyaward.org/wp-content/u...
www.fraicheurdeparis.fr/carte-du-res...
www.districtenergyaward.org/wp-content/u...
Una derivada curiosa de la mayor densidad de población de España y otros países del sur de Europa es que las densidades de demanda de calor son similares a las del norte de Europa a pesar de tener un clima más cálido.
doi.org/10.1016/j.en...
doi.org/10.1016/j.en...
August 12, 2025 at 8:44 AM
Una derivada curiosa de la mayor densidad de población de España y otros países del sur de Europa es que las densidades de demanda de calor son similares a las del norte de Europa a pesar de tener un clima más cálido.
doi.org/10.1016/j.en...
doi.org/10.1016/j.en...
Same cursives in Spain in the 90s 😅
August 5, 2025 at 9:49 PM
Same cursives in Spain in the 90s 😅
Spain is very anomalous when it comes to trips on foot. These data is old but probably still valid to a certain extent. Check Figure 3. www.researchgate.net/publication/...
(PDF) Comparison of travel behaviour in 11 European countries by use of post- harmonized European national travel surveys.
PDF | An essential prerequisite for research, decision making and effective policies in the field of sustainable transport are reliable data on travel... | Find, read and cite all the research you nee...
www.researchgate.net
July 25, 2025 at 8:21 PM
Spain is very anomalous when it comes to trips on foot. These data is old but probably still valid to a certain extent. Check Figure 3. www.researchgate.net/publication/...
Yes, @stephenking.bsky.social was right. It is a breakdown of modal share of trips by employment situation, rather than trip type. Quite confusing though.
July 25, 2025 at 8:15 PM
Yes, @stephenking.bsky.social was right. It is a breakdown of modal share of trips by employment situation, rather than trip type. Quite confusing though.
I had the same problem a couple of years ago returning to Copenhagen. Besides the compensation, DB paid up to 70 euros for a hotel night (That is the figure I was told back then and I have not been able to find it). They just need the original invoice by mail…
July 7, 2025 at 6:35 PM
I had the same problem a couple of years ago returning to Copenhagen. Besides the compensation, DB paid up to 70 euros for a hotel night (That is the figure I was told back then and I have not been able to find it). They just need the original invoice by mail…
I have not found any research for the whole Spain but this Master thesis addresses the province of Tarragona (upcommons.upc.edu/handle/2117/...) and this article proposes a different schedule pattern for the high speed lines (tecnica-vialibre.es/en/fichartic...)
Repensando la red ferroviaria de la provincia de Tarragona mediante la formulación de un Horario Cadenciado Integrado.
upcommons.upc.edu
December 28, 2024 at 10:26 AM
I have not found any research for the whole Spain but this Master thesis addresses the province of Tarragona (upcommons.upc.edu/handle/2117/...) and this article proposes a different schedule pattern for the high speed lines (tecnica-vialibre.es/en/fichartic...)
In Sweden, the story is similar. Most of the heat demand and the vast majority of the population is supplied by district heating, whilst individual heat pumps cover most of the remaining share.
Source: doi.org/10.1016/j.en...
4/n
Source: doi.org/10.1016/j.en...
4/n
November 16, 2024 at 3:09 PM
In Sweden, the story is similar. Most of the heat demand and the vast majority of the population is supplied by district heating, whilst individual heat pumps cover most of the remaining share.
Source: doi.org/10.1016/j.en...
4/n
Source: doi.org/10.1016/j.en...
4/n
Individual heat pumps are increasingly displacing individual fossil supply in those areas where district heating is not feasible.
November 16, 2024 at 3:03 PM
Individual heat pumps are increasingly displacing individual fossil supply in those areas where district heating is not feasible.
In Denmark, the highest heat supply form is district heating (+50%), which is increasingly supply by large heat pumps (as of 2023, large heat pumps and electric boilers accounted for 11 000 TJ out of 91 260 TJ of DH).
Graph from doi.org/10.1016/j.rs...
2/n
Graph from doi.org/10.1016/j.rs...
2/n
November 16, 2024 at 3:01 PM
In Denmark, the highest heat supply form is district heating (+50%), which is increasingly supply by large heat pumps (as of 2023, large heat pumps and electric boilers accounted for 11 000 TJ out of 91 260 TJ of DH).
Graph from doi.org/10.1016/j.rs...
2/n
Graph from doi.org/10.1016/j.rs...
2/n
This graph is misleading, since it seems to show the market share of individual heat pumps, which would be the relevant parameter to look at, but it does not.
Just two cases I know well, Denmark and Sweden.
1/n.
Just two cases I know well, Denmark and Sweden.
1/n.
November 16, 2024 at 2:50 PM
This graph is misleading, since it seems to show the market share of individual heat pumps, which would be the relevant parameter to look at, but it does not.
Just two cases I know well, Denmark and Sweden.
1/n.
Just two cases I know well, Denmark and Sweden.
1/n.