Trane CDS eLearning Series
Contents
1. 700 When importing a gbXML file into TRACE 700 a selection must be made of what wants to be imported Depending on the attributes of the CAD model TRACE can import if available Internal loads like People Lighting and Trane C D S eLearning Series 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 Miscellaneous loads Ventilation airflows Design temperatures Partitions Remember that partitions in TRACE 700 are internal walls meant to separate areas that have a big temperature difference If your interior walls separate areas with similar temperatures you don t need to import them Importing non needed partitions might make temperatures drift or might take very long calculation time if there are many partitions in the building The Check for removed drawing objects allows TRACE 700 to remove any objects that were removed from the gbxml file after the first import into TRACE If after the first import and export from TRACE some changes are made on the CAD software when it is imported again into TRACE this option can be selected to update the file and calculate it again The Use name as space identifier option assigns the name to each room from the name attribute created in the CAD program If unchecked the room name in TRACE will be from the id attribute in the file You need to look at the gbXML file to know what each CAD software uses For example Revit uses the name at2. Finally for further assistance if you have a valid TRACE 700 license you are welcome to give our support center a call or send us an email with your questions and we would be happy to help you out Thank you for watching and have a wonderful day
3. S eLearning Series Slide 11 Example Import goXML into TRACE SCREENCAST 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 Now let s open TRACE 700 and create a new file You can select templates for the building now or wait to see what is imported from the file Select File Import gbXML and select the XML file that was just created in Revit Select the items to import will select all except the partitions because internal walls are not needed in Trace unless there is a big temperature difference between rooms Since all my rooms are within the same range of temperature don t need the partitions for this example Review the inputs on your rooms such as dimensions openings internal loads etc We can see that 12 rooms were imported just like had them on my Revit file If the file does not include internal loads or airflows you can create them and apply them to the corresponding rooms will create for this example internal loads and ventilation of a typical office building Create the systems as needed and don t forget to assign rooms to systems If you have questions on zoning please check our tutorial Room and Zone Assignment on the following link http www trane com commercial north america us en products systems design and analysis tools c d s help elearning library room and zone assignments html will select for the system type a VAV with reheat enter th
4. Trane C D S eLearning Series Slide 1 Slide 2 Learning Objectives e Define goXML e Benefits e What can be done with TRACE e Import export Steps e Best practices Slide 3 What is goXML e Green Building XML e eXtensible Markup Language XML gt Computer language gbXML is an open schema used to exchange building data from a modeling software to an analysis software and back 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 Hello my name is Mayra Reyes and l m a marketing engineer in the C D S group at TRANE In this video will talk about gbXML files how to import them into TRACE to perform a Load calculation and then how to export them from TRACE to bring them back to your CAD project By the end of this video you will be able to Define what is a gbXML file Understand the benefits of working with gbXMLL files in TRACE Know what can be done with a gbXML file in TRACE Import and export a gbXML from TRACE Know the best practices to work with gbXML files Let s start with some definitions gbXML stands for Green Building XML XML or Extensible Markup Language is a type of computer language that allows software programs to communicate So goXML is an open schema data layout used to transfer a building data from a modeling software like a CAD software to an engineering analysis software such as TRACE to perform Load calculation and back In other words i
5. e fan type and static pressure Since VAV with reheat has a system level cooling coil the vav boxes will be assigned to zones As drag all the rooms under the system am assigning them as a zone each Run the Load calculation and check some reports to verify your inputs and outputs The System checksum report is a single page overview of the cooling heating loads and design information so can use it to check the load design calculation Now that the file has been calculated you can export it to a goXML format again Go to File select Export and then gbXM L Trane C D S eLearning Series Slide 12 Best practices e Trimmed walls e Plenum spaces e Partitions e Keep both files in your local computer e Abnormalities from CAD project e Rooms with unique names no special characters e Verify your inputs e Keep it simple 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 Select the same name of the imported file Originally In your CAD software with your project open look for the import gbXML option Select the results to be imported such as cooling heating loads or airflows for zones or spaces Now that we know how to export a CAD drawing as a gbXML file imported in to TRACE to run Load Design calculation and exported it again as a goXML for the CAD program let s review some best practices when working with gbXML Make sure that all walls are trimmed if a wall does not t
6. import Verify and complete inputs Run simulation Verify outputs through reports Export goXML from TRACE 700 Import the gbXML file to the CAD program Slide 8 What can be imported into TRACE 700 from the goXML m ien 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 After the building has been created in the CAD program and it is ready for load analysis export the project as a gbXML file e Export gbXML from CAD program Save gbXML with a file name less than 28 characters e Import the file into a new TRACE 700 select the elements to import e Verify and complete inputs Ensure that walls and windows have their actual size and look for duplicated inputs that might affect the calculation Zone rooms with their systems e Run simulation e Verify outputs through reports e Export gbXML from TRACE 700 e Import the gbXML file to the CAD program with the load and airflow calculations The purpose of importing a gbXML file into TRACE is to perform a Load Design Calculation of the building Therefore TRACE can import information needed for that load calculation such as the rooms areas roofs floors fenestration construction materials internal loads ventilation airflows systems and zoning of the rooms However a gbXML file might not have all those attributes It might contain only the building geometry Notice that every space defined in gbXML becomes a room in TRACE
7. le to you First you can use the User s manual which is accessible within the program by going to the Help Menu Documentation and then User s Manual This will open a searchable PDF of the entire manual You can also use the F1 help feature within the program If you have questions ona certain input simply hit the F1 button on your keyboard to open up the Help file for that particular screen The help file is full of blue links that will take you to pages with more detailed information on specific inputs A complete list of exported data can be found in the following link https hvackc comfortsite com admintool attachment_mgmt uploaddocs PATTLNK_ 1122009 2031 gbXML 20Results 20Exported 20from 20TRACE 20700 pdf ColdStream Software has created an extensive document that describes the use of Autodesk s Revit MEP 2010 and gbXML as well as a discussion on integration with TRACE 700 https hvackc comfortsite com admintool Trane C D S eLearning Series Slide 14 S contact us phone 608 787 3926 fax 608 787 3005 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 attachment_mgmt uploaddocs PATTLNK_ 1122009 2038 Revit 202010 20MEP 20Manual pdf Additional information related to the gbXML schema and TRACE integration can be found in the following link https hvackc comfortsite com admintool attachment_mgmt uploaddocs PATTLNK 3112010 227 TRACE 20700 20gbXML 2O0Integration p df
8. ouch the next wall it will be an open space which won t be imported as a room in TRACE Plenum spaces are imported as rooms Make sure they aren t selected for export in your CAD file Remember that partitions in TRACE are meant to separate areas that have a difference in temperature if your interior walls separate areas with similar temperatures you don t need to import them You might prevent several problems like temperatures drifting or very long calculation time if there are many partitions in the building Keep both your TRACE and gbXML files in the same location in your local computer Importing a gbXML file from a server might create some problems Abnormalities or errors may propagate through gbXML if the original CAD project has mistakes in the drawing or definitions Rooms should have a unique name and special characters should not be used for their name Do not use special characters to name the gbXML file nor the TRACE file Verify your inputs curved walls might import as many small walls to get that Trane C D S eLearning Series Slide 13 Additional resources e TRACE 700 User s Manual e TRACE 700 F1 help e Links to more technical documents 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 shape check for repeated elements Overall keep it simple If you would like more information on gbXML and TRACE interaction there are a number of resources availab
9. t will transfer a building drawing to calculate Loads and bring it back to a drawing Trane C D S eLearning Series Slide 4 About goXML Non proprietary data schema e Maintained by an industry consortium of 200 members e Supported by 35 software applications gt TRACE 700 Autodesk BimStorm DIALux Bentley other tools for BIM Building Information Modeling and BEM Building Energy Modeling e Funding from the PNNL Slide 5 Benefits e Save time e Minimize errors e Increase productivity 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 gbXML is an Open data schema which means that anyone can use it for free It is maintained by more than 200 members of the industry and around 35 software applications support it such as TRACE 700 Autodesk BimStorm and Dialux amongst many other gbXML now has a funding from the Pacific Northwest National Lab to allow users to integrate it to other tools Now that we know what gbXML is used for let s take a look at the advantages of using gbXML files in TRACE You can save time around 75 of the time to generate a file in TRACE 700 is typically spent in Create Rooms A gbXML import can reduce this time by more than 2 3 Once the building is modelled in a CAD program instead of creating every room in TRACE selecting each type of construction materials and internal loads one can simply import the gbXML file that can contain all
10. the building geometry The Same can be done from TRACE 700 to gbXML one can export load calculation results and import them automatically into Trane C D S eLearning Series Slide 6 Drawbacks e File must be created in CAD e CAD mistakes are propagated into TRACE e Includes only Building information model not building energy model 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 the CAD software Minimize errors using gbXML to transfer a project information minimizes errors that occur during double data input TRACE 700 can import a gbXML file produced by a CAD program without having to enter the information all over again Saving time and minimizing errors can be translated as an increase of productivity Some disadvantages of using gbXML files in TRACE 700 are The file must be created first in a CAD software and then imported into TRACE you can t create a project in TRACE and then export it into CAD It will not generate the drawing of your building Abnormalities or errors generated in the CAD program will be propagated through TRACE For example walls that are not trimmed leave an open space instead of a room AgbXML import into TRACE is meant to calculate Load design not Energy simulation Trane C D S eLearning Series Slide 7 Steps to use a gbXML file with TRACE 1 Export goXML from CAD program 2 Import the file into TRACE 700 select the elements to
11. tribute Trane C D S eLearning Series Slide 9 What can be exported from TRACE 700 as a goXML e Cooling and heating loads e Coils size Mbh tons e Airflows Slide 10 Example Export goXML from Revit 2015 Trane a business of Ingersoll Rand gbXML files and TRACE 700 After the simulation has been calculated the file can be exported from TRACE as a gbXML file to then import it into a CAD program and the design information will be transferred to the drawing The Load design information that can be exported includes space or zone heating and cooling loads coil sizes and airflows This export gbXML feature exports design information to an existing xml file that was used to create the current TRACE file Only a TRACE 700 file created from an imported gbXML file can be exported only after it has been calculated in TRACE Let s look at an example using Autodesk Revit A building with 12 rooms is created as a CAD drawing We want to export it as goXML to run the Load calculation in TRACE 700 To do so opened in the main menu the option Export and selected gbXML The export gbXML setting window will allow you to select the building type location level of complexity of the export and category The exported file will have an extension xml make sure that you save it in the same location that you will save the TRACE file and avoid using special characters for the name Trane C D
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