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Part 1: Document Description
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Citation |
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Title: |
Calculation of the Emission Characteristics of Aircraft Kerosene and Hydrogen Propulsion |
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Identification Number: |
doi:10.7910/DVN/DLJUUK |
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Distributor: |
Harvard Dataverse |
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Date of Distribution: |
2020-12-01 |
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Version: |
4 |
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Bibliographic Citation: |
Scholz, Dieter, 2020, "Calculation of the Emission Characteristics of Aircraft Kerosene and Hydrogen Propulsion", https://doi.org/10.7910/DVN/DLJUUK, Harvard Dataverse, V4 |
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Citation |
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Title: |
Calculation of the Emission Characteristics of Aircraft Kerosene and Hydrogen Propulsion |
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Identification Number: |
doi:10.7910/DVN/DLJUUK |
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Authoring Entity: |
Scholz, Dieter (Hamburg University of Applied Science) |
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Date of Production: |
2020-11-29 |
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Software used in Production: |
Excel |
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Distributor: |
Harvard Dataverse |
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Access Authority: |
Scholz, Dieter |
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Depositor: |
Scholz, Dieter |
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Date of Deposit: |
2020-11-29 |
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Series Name: |
Digital Library - Projects and Theses - Prof. Dr. Scholz |
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Holdings Information: |
https://doi.org/10.7910/DVN/DLJUUK |
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Study Scope |
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Keywords: |
Engineering |
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Topic Classification: |
Aerospace |
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Abstract: |
Calculation of the emission characteristics of aircraft kerosene and hydrogen propulsion have been done in comparison. The method from SCHWARTZ 2009 was applied and adapted. Hydrogen combustion is free of CO2 emissions, but has 2.58 times more water emissions. This primary effect would lead to an equivalent CO2 mass 50% higher than for kerosene. However, secondary effects of contrail formation (larger ice crystals leading to a decreased contrail optical depth) and the possibility of low NOx lean hydrogen combustion results in equivalent CO2 mass in the order of kerosene propulsion. Current state of knowledge does not allow a conclusive assessment. Nevertheless, it is certain that hydrogen powered aircraft will have more than zero emissions. Hydrogen propulsion has the advantage that emissions are only short term. Hence these emissions do not cause a compiled burden for future generations as it would be with accumulated CO2. |
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Kind of Data: |
Program |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Notes: |
This is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, License Version 3. The software is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details: http://www.gnu.org/licenses/gpl.html |
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Other Study Description Materials |
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Related Publications |
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Citation |
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Title: |
Scholz, Dieter, 2020. Design of Hydrogen Passenger Aircraft – How much 'Zero-Emission' is Possible? Hamburg Aerospace Lecture Series, HAW Hamburg, 19.11.2020. Available from: |
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Bibliographic Citation: |
Scholz, Dieter, 2020. Design of Hydrogen Passenger Aircraft – How much 'Zero-Emission' is Possible? Hamburg Aerospace Lecture Series, HAW Hamburg, 19.11.2020. Available from: |
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Label: |
EmissionCharacteristics.xlsx |
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Notes: |
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
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Label: |
EmissionCharacteristics_SphereModel.xlsx |
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Text: |
Kerosene and hydrogen emissions estimated, now updated with correct "Sphere Model" (no double accounting of 2.58). |
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Notes: |
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet |
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Label: |
Kerosene_Emissions.png |
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Text: |
The environmental impact (equivalent CO2) of jet aircraft powered with kerosene calculated with a simple 1D climate model. |
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Notes: |
image/png |
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LH2_Emissions_Primary_and_Secondary_Effects.png |
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The environmental impact (equivalent CO2) of jet aircraft powered with hydrogen calculated with a simple 1D climate model. It is assumed that with hydrogen combustion, due to various effects, nitrogen oxides only have 35% and AIC only 60% of their usual effect. |
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Notes: |
image/png |
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LH2_Emissions_Primary_Effects.png |
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Text: |
The environmental impact (equivalent CO2) of jet aircraft powered with hydrogen calculated with a simple 1D climate model. The effect of nitrogen oxides and AIC is included into the calculation in the same way as for kerosene powered aircraft. |
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Notes: |
image/png |
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LH2_Emissions_Secondary_Effects.png |
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Text: |
Secondary effects calculated with the "Sphere Model", taking also care of more contrails forming due to slope G (factor 1.2). Note also: No double accounting of factor 2.58. This is correct for H2 ice crystals 3.33333 bigger than those of kerosene: 0.36*2.58 = 0.929 is the overall effect. |
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Notes: |
image/png |