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 GHGenius 3.16 TagsAlgae
Biodiesel
Corn
Crude Oil
Electricity
Ethanol
Fertilizer
GHGenius 3.16
HRD
Jatropha
Manual
Natural Gas
Soybeans
SuperCetane
 GHGenius 3.16 Input Checklist
 Prepared October 2009
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This is a two page handout that details the user inputs on the Input sheet. Note that it is not comprehensive enough to replace any of the existing documentation, but meant as a quick checklist for model runs. It is accurate for version 3.16 of the model.


Tags: GHGenius 3.16 - Manual
 2009 GHGenius Update
 Prepared September 2009
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This report covers an update of the following data in GHGenius. In some cases the structure of the model has been slightly changed to accommodate the time series but any difference in the results is due to the new input data and not due to any structural changes in the way that the model handles the new data.

1. International crude oil energy and emissions. Several new data sources have recently been identified. These include the International Oil and Gas Association (a time series from 2002 of the energy and GHG emissions of crude oil production for various regions of the world), data from the Alberta Energy Research Institute studies (some specific useful information for countries such as Mexico, Venezuela, Iraq, and Saudi Arabia), and the World Bank flaring study.

2. Canadian electricity. A time series of electric power production on a regional basis in Canada from 2000 has been be developed from Statistics Canada data. Regional generation efficiencies and proportions of power types have been extracted from the data.

3. Rail energy. Statistics Canada has a time series data for freight movement on Class 1 railways. This data has been compared to similar information from the United States and incorporated in the model.

4. Potash mining. Statistics Canada, CIEEDAC, and NRCan Comprehensive Energy Use Database provide a time series for energy consumption, quantity and type. This has been compared to the NRCan CIPEC report that was used as a data source in the model. The new information has been incorporated into the model.

5. Nitrogen fertilizer. Statistics Canada, CIEEDAC, and NRCan Comprehensive Energy Use Database all have a time series for information on this sector. These data sets do not include process energy consumption but that can be calculated. The data sets have been compared to the NRCan CIPEC report that was the base of data in the model.

6. Corn and Soybeans. Fertilizer and yield time series available from the USDA. Some Statistics Canada yield data on these crops and other Canadian crops is available as well. This time series data has been incorporated into the model.

7. Ethanol and Biodiesel energy requirements. New data from the United States is available for both these alternative fuels. An update and development of a time series for ethanol has been incorporated into the model.

8. Some users have identified a number of enhancements for the functioning of the EV macro in GHGenius. These modifications have been incorporated into GHGenius. They provide more functionality and having them in the public model will allow them to be continually updated as model enhancements are undertaken.

9. Natural gas update. The Canadian Gas Association has provided some recent information on distribution emissions. Unfortunately the report did not provide activity data but that that has been developed from other sources. In addition Statistics Canada has data on the natural gas sector and this will be reviewed to see if it can be worked into the model.


Tags: Biodiesel - Corn - Crude Oil - Electricity - Ethanol - Fertilizer - GHGenius 3.16 - Natural Gas - Soybeans
 Algae and Jatropha Biodiesel
 Prepared September 2009
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The cultivation and crushing of Jatropha has been added to the GHGenius model. Similar to other vegetable oil pathways in GHGenius, the Jatropha seeds are crushed to produce the oil and the oil is then transesterified to produce biodiesel.

There is increased interest in the production and use of algae to produce fuels for the transportation sector. In spite of all of the interest, there has been very little quantification of the energy and emission benefits of such an algae to biodiesel pathway published, although there is some information on the energy and material balances of some of the proposed algae systems. The available literature on algae production systems has been reviewed to gather the data that is required for modelling and the data has been added to an algae to oil pathway and an algae oil to biodiesel pathway, the same combination of systems that we use for other biodiesel systems, in the GHGenius model.

The GHGenius has been modified so that the SuperCetane pathway that was in the model and could process both tallow and canola oil can now process all eight types of vegetable oils or animal fats. The data that is used for the process is now the operating information for the Neste NExBTL and the SuperCetane description has been replaced by a more generic description of hydrotreated renewable diesel (HRD).

The version of the GHGenius model that accompanies this work is version 3.16. There are other changes that have been made to version 3.16 to update the data in the model but these are described in a separate report.


Tags: Algae - Biodiesel - GHGenius 3.16 - HRD - Jatropha - SuperCetane
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