Forum for ecoinvent Version 3

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Written on 11.12.2018 by Avraam.Symeonidis see context

Topic:
m2*a

Dear Melissa,

Thank you for your thread. "a" stands in this case for "annum" which is the latin translation of the word "year". The unit you are listing means square meters times years and not square meters per year. 

Best regards,

Avraam Symeonidis,

Data analyst, ecoinvent 

Written on 11.12.2018 by Avraam.Symeonidis see context

Dear Matteo, 

Please send me an email at: symeonidis@ecoinvent.org and let me know what plant you are considering, and exactly which urea production dataset you are considering.

Best regards,

Avraam,

Data analyst, ecoinvent

Written on 10.12.2018 by MelissaBaldridge see context

Topic:
m2*a

OK, I give up. What does this acronym stand for? Is it square meters per?...

 

Thanks in advance,

Melissa B.

Written on 10.12.2018 by mattepey see context

Dear Avraam,

I would like to ask a detail about the urea production and CO2 release in ecoinvent. 

The description claims that CO2-consumption during the production of urea was not included, because it arises as a by-product during the production of ammonia. So why it is considered the CO2 emitted by hydrolysis of urea during plant cultivation? is not it a double count? 

 

Thank you very much for your help.

Best Regards 

Matteo

Written on 06.12.2018 by Bernhard see context

Hi Chi-Hung,

 

those are two completely different methodologies. You can not compare the those.

However, you can calculate the LCA of these chemicals yourself and observe the differences in results of the two methods.

You shoud not compare LCA results of two studies anyways

Written on 06.12.2018 by Bernhard see context

Hi Avraam,

thank you for your response! I am sorry I did not make myself clear. My point was that as someone who is (a little) familiar with agriculture I don't understand why root vegetables would grow in a heated greenhouse.

It would be similar to grow carrots in a heated greenhouse...

It's not made clear in the primary source either how they come with such a scenario

Written on 05.12.2018 by Avraam.Symeonidis see context

Dear Bernhard,

Thank you for your post. Yes, indeed the dataset describes a greenhouse production. We currently do not have a respective production for open field radish production. 

Best regards,

Avraam Symeonidis,

Data analyst, ecoinvent

Written on 05.12.2018 by Bernhard see context

I looked up the background data and indeed, it says 50.8 MJ/kg, as it is produced in a heated greenhouse.

I highly doubt that much radish is produced in a heated greenhouse, as this is usually not the case for root vegetables

Written on 05.12.2018 by luciavalsasina see context

Topic:
SimaPro

Dear Elias, 

 

I believe you should not experience problems accessing the data.

Could you please tell me the exact name of the dataset that you would like to access, the geography, the system model you are using, and the version of ecoinvent (e.g. version 3.4). 

 

Thank you.

 

Best regards, 

Lucia Valsasina, Data analyst, ecoinvent

Written on 04.12.2018 by Elias see context

Topic:
SimaPro

Dear Lucia Valsasina,

thank you for your kind response. I did purchases the ecoinvent database with simapro but i can not access specifically the gasoline fuel process in the data base. I want to know if that is the problem with me or it is not included for all?

Regards

Elias

Written on 04.12.2018 by luciavalsasina see context

Topic:
SimaPro

Dear Elias, 

 

As stated on the SimaPro  website "The ecoinvent database is integrated in SimaPro (it is included by default, but is optional on request)". ecoinvent data should therefore by default be included in your software unless you requested otherwise. If you purchased SimaPro with ecoinvent and you cannot access the data, please contact the SimaPro support directly. If you purchased SimaPro without ecoinvent, you would need to purchase an ecoinvent license to access ecoinvent data.

 

Best regards,

Lucia Valsasina, Data analyst, ecoinvent

 

 

Written on 04.12.2018 by Bernhard see context

Dear Ecoinvent team,

the dataset 'radish production' has an input of 50.8 MJ heat. This leads to a GWP around 10 kg CO2eq.

That has to be an error, right?

 

Written on 04.12.2018 by Elias see context

Topic:
SimaPro

Dears,

I was using simaPro V8 for ny LCA study on sugarcane molasses ethanol production. I was looking for gasoline production in the ecoinvent database to consider as an avoided emission. Could you please help me how can i include this gasoline production process from ecoinnvent database in SimaProV8 please.

 

Written on 04.12.2018 by chi_hung_ho see context

Dear Ecoinvent team,

As title, I have encountered this problem when I was trying to compare the LCA results of different chemicals. 

One used ReCiPe midpoint, the other used TRACI

The unit of the former is SO2 kg-eq, and that of the latter is H+ mol-eq

 

Is there any method that I can convert one of the units into the other one?

If so, any literature supports it?

 

Thank you and best,

Chi-Hung