GaBi Education - GaBi Software

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Procedure 24. Begin by selecting the country that your process refers to. You don´t have to do this, but it is helpful, if you have the information. 25. Name the process simply by clicking in the „Name‟ field and typing ´Paperclip Bending.´ 26. In the source field you can select where this process data comes from. Leave this blank for now. You can also select the type of process. This requires a bit more explanation. 3.8 Process types There are 5 types of processes in GaBi in accordance with the European Union’s ILCD system. Processes are categorised in order to better understand their roles within a product system. If you’d like to find out more about the ILCD system you can visit the ILCD website (http://lct.jrc.ec.europa.eu/index_jrc) or watch the Welcome to GaBi 4.4 video. A unit process single operation, represented by u-so, is often referred to as a unit process or gate to gate process. This process type contains only the data for one specific process step and no LCI (or Life cycle inventory) data. A unit process black box, represented by u-bb, refers to a multifunctional process or process chain at a plant level. This type of process may represent a group of processes rather than a single process step. For example, the entire production chain of a computer keyboard key (excluding acquisition of raw materials) rather than the individual manufacturing and transport processes for the keyboard key. In contrast, an LCI Result contains the entire life cycle data for part of or for the complete life cycle of a product system. This kind of dataset is often referred to as a cradle to gate or system process. A partly terminated system, represented by p-agg, contains all LCI data for the process except for one or more product flows that require additional modelling. For example, the steel wire process is a partly terminated system because all of the inputs and emissions for the process are accounted for except for the type of steel being used to make the steel wire. This process type is sometimes referred to as a partly linked process. The last process type is called an avoided product system and is represented by aps. This can be a confusing process type because all input and output flows are set to negative values or all inputs are converted to outputs or vice versa. This kind of dataset is typically used when modelling allocation and shows the way that the use of certain materials and energies is avoided by the product system under study. We won’t go any deeper into this process type. Take a guess what kind of process paperclip bending might be. Is it a unit process single operation, unit process black box, LCI result, partly terminated system or avoided product system? If you guessed unit process single operation you are correct. But why? 34
Procedure Well, because this process represents only the process of bending the paperclip. It does not contain multiple process steps, does not contain life cycle data for a complete life cycle of a product system, LCI data and does not include negative flows. 3.9 Specifying the flow type In GaBi you can specify the process type by selecting the appropriate type from the type drop down menu. 27. Since the Paper Clip Bending process is a unit process single operation, you can go ahead and select „u-so.‟ 3.10 Parameters, LCC, LCWE and ILCD Documentation Here you see the parameters area. By entering parameters, you can create what if scenarios as well as determining certain aspects of this process’s relationship to other processes. The parameter area is closed for now and for now we will not go deeper into this. You now see a series of tabs. Since GaBi is designed to carry out a large variety of evaluations, it is possible to enter additional information relating to costs and working time. You can also add ILCD documentation. However, this is too detailed for this tutorial. For the time being we will focus on the current LCA tab. You have the possibility to enter additional information relating to this process such as its year, region, completeness and additional comments. Adding this information improves the quality of your process information but does not affect the results calculated by GaBi. You can enter some information here if you like or carry on. 35
Page 1 and 2: GaBi Education Handbook for Life Cy
Page 3 and 4: Table of Contents 1 Introduction to
Page 5 and 6: Table of Figures Figure 1: Overview
Page 7 and 8: Purpose of this Handbook The purpos
Page 9 and 10: The following is just a brief list
Page 11 and 12: 2.1.2 Scope The intended applicatio
Page 13 and 14: Figure 3: Process Flow Diagram A sy
Page 15 and 16: Figure 5: Allocation Example Figure
Page 17 and 18: Figure 6: Data Collection and Calcu
Page 19 and 20: Conducting Life Cycle Assessments o
Page 21 and 22: 2.3.2 Selection of Impact Categorie
Page 23 and 24: Conducting Life Cycle Assessments o
Page 25 and 26: Conducting Life Cycle Assessments p
Page 27 and 28: 3 Procedure Procedure This chapter
Page 29 and 30: 3.2 Activating a database Procedure
Page 31 and 32: Procedure In most cases there are s
Page 33: Procedure GaBi now searches for all
Page 37 and 38: Procedure You will notice the searc
Page 39 and 40: Procedure The reference quantity of
Page 41 and 42: Procedure Waste flows are, not surp
Page 43 and 44: 3.19 Adding processes Procedure You
Page 45 and 46: 3.23 Linking processes Procedure Le
Page 47 and 48: Procedure Let´s assume that the us
Page 49 and 50: Procedure Since each plan requires
Page 51 and 52: Procedure 91. Click on the „Balan
Page 53 and 54: 96. Select the „separate IO table
Page 55 and 56: 3.32 View option: Quantity view Pro
Page 57 and 58: Procedure By right clicking on a co
Page 59 and 60: 4 Literature Literature GABI 2003 G
Page 61 and 62: Appendix A Appendix A 3 Global Warm
Page 63 and 64: Appendix A Appendix A 6 Photochemic
Page 65 and 66: The surface of the model is divided

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