The investigated fleet’s average CO2 emission for small vehicles was at
139 [g/km] at a speed of 100 [km/h]
155 [g/km] at a speed of 130 [km/h]
171 [g/km] at a speed of 140 [km/h]
I didn’t find a reference data set for a complete average CO2 emission/speed relation so far.
But it is clear that the fuel consumption and the directly related CO2 emission depends not only on speed, but on revolutions, mass (acceleration takes the most energy) and the many individual car’s characteristics.
As for 2015, the European Commission has set a critical value of 130 [g/km] as the limit for new passenger vehicles (certain mix of city / highway /xx roads and velocities..).
Depending on the indiviual mass, the critical value (CV2016) is adjusted as follows:
CV2016 = 130 + a * (M -M0)
Where M is the actual mass of the empty vehicle[kg], M0 is the reference mass = 1392,4 [kg], and the factor a = 0,0457.
The 2015 target corresponds to a fuel consumption of around 5.6 litres per 100 km (l/100 km) of petrol or 4.9 l/100 km of diesel.
Beginning in 2020, this critical value is set to 95 [g/km] for all newly registered passenger cars.
The formula for the mass-related critical value is CV2020 = 95 + a * (M-M0), with a = 0,0333.
But this is just the target for the total average CO2 emission of cars.
It is clear that in the acceleration phase the fuel consumption and CO2 emission will be more than ten times of the emission value at constant speed.
Does this help?
If yes, we can look up related publications to provide you with the corresponding links..
Best
Albert
Hi:
Actually, I’d like potentially both print and online interactive outputs.
Print: These will be print maps for a new book. They can be up to 10” x 11” (or even 10” x 22” 2-page spreads with overlaying captions/text if something looks really interesting). The C02 and speed variables are definitely interesting places to start. I wonder if you could generate a few first examples that I could share with the authors. I will be honest and say I need much more content for this chapter compared to some of the other submissions, so maybe even having you write up some info about the workflows and thought processes that you will be going through.
Some interactive maps, story maps, or web apps that could be included in the companion web site for the book.
Does that make sense? We could meet briefly and I’d definitely like to get you guys on a call with the authors in Germany after you’ve played with the data some.
Hi Jim, Jennifer,
as for the emissions / critical values the following WebSite might help: http://www.umweltbundesamt.at/umweltsituation/verkehr/fahrzeugtechnik/pkw/tempo/ The Federal Environment Agency of Austria (UBA-AT) has published some statistics on average CO2 emissions in relation to speed.
The investigated fleet’s average CO2 emission for small vehicles was at 139 [g/km] at a speed of 100 [km/h] 155 [g/km] at a speed of 130 [km/h] 171 [g/km] at a speed of 140 [km/h] I didn’t find a reference data set for a complete average CO2 emission/speed relation so far.
But it is clear that the fuel consumption and the directly related CO2 emission depends not only on speed, but on revolutions, mass (acceleration takes the most energy) and the many individual car’s characteristics.
As for 2015, the European Commission has set a critical value of 130 [g/km] as the limit for new passenger vehicles (certain mix of city / highway /xx roads and velocities..). Depending on the indiviual mass, the critical value (CV2016) is adjusted as follows: CV2016 = 130 + a * (M -M0) Where M is the actual mass of the empty vehicle[kg], M0 is the reference mass = 1392,4 [kg], and the factor a = 0,0457. The 2015 target corresponds to a fuel consumption of around 5.6 litres per 100 km (l/100 km) of petrol or 4.9 l/100 km of diesel.
Beginning in 2020, this critical value is set to 95 [g/km] for all newly registered passenger cars. The formula for the mass-related critical value is CV2020 = 95 + a * (M-M0), with a = 0,0333.
But this is just the target for the total average CO2 emission of cars. It is clear that in the acceleration phase the fuel consumption and CO2 emission will be more than ten times of the emission value at constant speed.
Does this help?
If yes, we can look up related publications to provide you with the corresponding links..
Best Albert
Hi:
Actually, I’d like potentially both print and online interactive outputs.
Print: These will be print maps for a new book. They can be up to 10” x 11” (or even 10” x 22” 2-page spreads with overlaying captions/text if something looks really interesting). The C02 and speed variables are definitely interesting places to start. I wonder if you could generate a few first examples that I could share with the authors. I will be honest and say I need much more content for this chapter compared to some of the other submissions, so maybe even having you write up some info about the workflows and thought processes that you will be going through.
Does that make sense? We could meet briefly and I’d definitely like to get you guys on a call with the authors in Germany after you’ve played with the data some.
Christian