{"id":32855,"date":"2021-05-05T12:04:15","date_gmt":"2021-05-05T10:04:15","guid":{"rendered":"https:\/\/eiposgrados.com\/?p=32855"},"modified":"2021-05-06T11:21:09","modified_gmt":"2021-05-06T09:21:09","slug":"geometric-definition-with-openstudio","status":"publish","type":"post","link":"https:\/\/eiposgrados.com\/eng\/blog-ingenieros\/definicion-geometrica-con-openstudio\/","title":{"rendered":"Geometric definition with OpenStudio"},"content":{"rendered":"<p>To make a<strong>energy simulation<\/strong> of a building we must have a model that represents the geometry we want to study, this model can be more or less complex and must respond to certain<strong> design standards<\/strong>, different from those followed in architectural design. We need a<strong> thermal or energy model of the building<\/strong>.&nbsp;<\/p>\n\n\n\n<p>In this article we are going to <strong>introduce OpenStudio workflow<\/strong>, in relation to this need to define the thermal model of the building, we are going to present <strong>several options or possibilities <\/strong>that encompass different workflows and different programs or tools. With e<a href=\"https:\/\/eiposgrados.com\/eng\/master-bim-installations\/\">l Master in BIM and Efficient Energy Management <\/a>You will receive the knowledge to use analysis, modeling and simulation tools for facilities.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image1.jpeg\" alt=\"\" class=\"wp-image-32856\" width=\"297\" height=\"197\" title=\"\"><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image3.png\" alt=\"\" class=\"wp-image-32857\" width=\"282\" height=\"282\" title=\"\" srcset=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image3.png 300w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image3-70x70.png 70w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image3-150x150.png 150w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image3-165x165.png 165w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image3-200x200.png 200w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image3-125x125.png 125w\" sizes=\"(max-width: 282px) 100vw, 282px\" \/><\/figure><\/div>\n<\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Everything you need to know about OpenStudio<\/h2>\n\n\n\n<p>Although for many OpenStudio is a common work tool and they know perfectly well how it works, we must begin the entry with a brief introduction about the program, <strong>What is OpenStudio? What is your function?<\/strong><\/p>\n\n\n\n<p><strong>OpenStudio<\/strong> is a collection of<strong> tools to model and perform energy simulations of buildings<\/strong> and has <a href=\"https:\/\/energyplus.net\" target=\"_blank\" rel=\"noopener\">EnergyPlus<\/a> as an energy calculation engine and Radiance to perform natural light analysis. <\/p>\n\n\n\n<p>Is about <strong>one of the most powerful tools<\/strong> currently to carry out energy studies, developed in collaboration by NREL, ANL, LBNL, ORNL and PNNL. Furthermore, it is a <strong>free and open source software<\/strong>.&nbsp;<\/p>\n\n\n\n<p>In summary we can define the OpenStudio application as a<strong> EnergyPlus graphical interface<\/strong>, which facilitates the entry of data, the definition of air conditioning systems, and the visualization of results. <\/p>\n\n\n\n<p>In short, it makes working with EnergyPlus friendly, which although it is a <strong>very powerful calculation option <\/strong>It is not a viable option for average users.&nbsp;<\/p>\n\n\n\n<p>It is important to mention that <strong>we are going to use the latest available version of OpenStudio<\/strong> As of the date of writing this document (OpenStudio SDK version: 3.1.0), since depending on the version we use, a different workflow may be followed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Ways to define valid geometry<\/h2>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/2Dm1yl465vkX1yAao9_mxqAqAjNCHRzzWonacD6Lj3XMyLpiezVZvY_sE9BZaaFxYA3xaypDefp-f6289AXX8QUBb4py0vpa7YxQy604mkzu9Jtuboyqf2nHqFykr3ihHDBJr0ETSeBy37oy8Q\" alt=\"Geometric Definition with OpenStudio\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n\n\n\n<p>There are several ways to <strong>define a valid geometry<\/strong> to make a model compatible with OpenStudio;&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>There is the possibility of defining simple geometry using the editor <strong>FlooespaceJS<\/strong>.<\/li><li>Through a plugin, included in the OpenStudio distribution, you can use <strong>sketch up<\/strong>.&nbsp;<\/li><li>You can use CAD programs that have export to the format available. <strong>gbXML<\/strong>.<\/li><li>It is also possible to use geometry defined in the native EnergyPlus language (<strong>IDF<\/strong>)<\/li><li>Finally, you can use geometry generated from other modeling programs with an export compatible with the OpenStudio format (<strong>OSM<\/strong>)<\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">FloorspaceJS<\/h3>\n\n\n\n<p><br><\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image2.png\" alt=\"\" class=\"wp-image-32858\" width=\"244\" height=\"244\" title=\"\" srcset=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image2.png 192w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image2-70x70.png 70w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image2-150x150.png 150w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image2-165x165.png 165w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image2-125x125.png 125w\" sizes=\"(max-width: 244px) 100vw, 244px\" \/><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><strong>FloorSpaceJS <\/strong>it&#039;s a <strong>2D geometry editor<\/strong>, indicated for <strong>define directly in OpenStudio building models with a geometry that is not too complex.&nbsp;<\/strong><\/p>\n\n\n\n<p>The geometric definition <strong>is based on the introduction of plans, images<\/strong>\u2026to model the different floors of our building. Given that<strong> both EnergyPlus and OpenStudio work with three-dimensional models<\/strong> of the building, OpenStudio transforms the entered 2D geometry into valid 3D models.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>From <strong>FloorSpaceJS <\/strong>It is possible to define both the<strong> exterior geometry<\/strong> of the building by adding boundary conditions, defining the different spaces of the building; indicating the internal loads, constructions\u2026 It is possible <strong>group those spaces into thermal zones<\/strong> to later define thermostats and air conditioning systems, create subsurfaces (windows and doors), modify all references to natural language...<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/6a0nbI_ROYJr9vniWhP6VfHoYDqulW8cT8Lv2fIq3Ctvi_xtlnou5Z7ewtyQWOZIv03XyzP6P3k_9C25kr7x2YMy8fhf_KU4DNJ76m5qpqm0u3KTfRnclywz-qEY71halOFj5eD3rEykR3JYvg\" alt=\"\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">OpenStudio SketchUp Plug-in<br><\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image5.png\" alt=\"\" class=\"wp-image-32859\" width=\"304\" height=\"304\" title=\"\" srcset=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image5.png 256w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image5-70x70.png 70w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image5-150x150.png 150w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image5-165x165.png 165w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image5-200x200.png 200w, https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image5-125x125.png 125w\" sizes=\"(max-width: 304px) 100vw, 304px\" \/><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The definition of the building model through the<strong> SketchUp Plugin <\/strong>is possibly the<strong> most widespread option<\/strong>. <strong>sketch up<\/strong> is a 3D modeling program that allows you to generate thermal models of the building with the characteristics of OpenStudio.&nbsp;<\/p>\n\n\n\n<p>Depending on the version of OpenStudio with which we are working we will have to<strong> use a supported version of SketchUp<\/strong>. For example, in my case, to work with OpenStudio version 3.1.0 (OpenStudio Application Version 1.1.0 and OpenStudio SketchUp Plug-in Version 1.1.0), the supported versions of SketchUp are SketchUp Pro 2019 and SketchUp Pro 2020.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>One of the reasons why the use of this workflow became popular was the<strong> possibility of using the plug-in in free versions of SketchUp<\/strong>, this situation has changed in recent years and SketchUp Pro 2019 and 2020 are commercial tools and do not have a free version.&nbsp;<\/p>\n\n\n\n<p>Continuing with the possibilities that SketchUp offers us, in addition to<strong> allow geometric definition of the building in the SketchUp interface itself<\/strong>, imports\/exports can be performed with other compatible formats such as; OSM, IDF, gbXML and SSD.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/kIz04Sat-eCVhytmTTUk2wSfZYnYiyoBH7wveFY8TVDKn8_682mgQ0Atn0o87jniLJ5VDUEVz7oq4SzDfAyeSfCw9E7deXFJ8xkZ4nWXRda2RXJADuPpakgZnSDlljQNA3I_qvMMDjCnUBerAg\" alt=\"\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n\n\n\n<p>Through the<strong> SketchUp plugin<\/strong> allows, in addition to the geometric definition of the building, <strong>define information about the OpenStudio model through OpenStudio Inspector<\/strong>. Although it is certain that in the long run you will have to define some elements directly in OpenStudio, the possibility of working in real 3D and directly assigning characteristics to the defined elements is a very intuitive option.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh6.googleusercontent.com\/ViGm4OgZw9iV2tvkuJidV_l77LlCbl3in7JddNNGmdewX6kEWVZlZS3li6LWP6UFk-ISyG2m3FuXkoUGWSAEHPtFSvBC64VDxWGNRc-CvRvrQb23k0xFR09u6QF3ESwePEkx0P_OcZ-DkO7C9g\" alt=\"\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">gbXML format<\/h3>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/eiposgrados.com\/wp-content\/uploads\/2021\/05\/image4.png\" alt=\"\" class=\"wp-image-32860\" width=\"248\" height=\"99\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p><strong>The gbXML format<\/strong> It is used to facilitate the transfer of property of a<strong> building modeled with BIM<\/strong> to energy calculation applications. On the website of <a href=\"https:\/\/gbxml.org\/Software_Tools_that_Support_GreenBuildingXML_gbXML\" target=\"_blank\" rel=\"noopener\">gbXML<\/a> We have a list with some software that has the possibility of exporting to this format.<\/p>\n<\/div>\n<\/div>\n\n\n\n<p>In this first image we have a <strong>3D model visualization<\/strong>, imported from a gbXML format file, before integrating it into OpenStudio. This viewer is <a href=\"https:\/\/www.ladybug.tools\/spider-gbxml-tools\/#README.md\" target=\"_blank\" rel=\"noopener\">Spider gbXML Viewer Basic<\/a> and is part of a group of very powerful design and analysis tools called <a href=\"https:\/\/www.ladybug.tools\" target=\"_blank\" rel=\"noopener\">Ladybug Tools<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/aNP46ijZUN2BQNI6FlGszzw_2jwTm4eG_66H-ibX-iW22LDVfPDHrAk9NfMTgLIZg46aY4onTH_yuJwgSFgW6DE9YQX75nYKV7MWk3wry3oCMZlB78NDFy05XXxnuJfdGz6WDdGjamvynzySLQ\" alt=\"\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n\n\n\n<p>In this image we can see how <strong>integrated geometry from gbXML file<\/strong> in the OpenStudio workflow. From this geometry we can continue working in OpenStudio just as if we had used any of the previous processes.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh5.googleusercontent.com\/GDWXLXifCjyWbAL3gEpx4Nf6bwsZh146ANwqNdNoN4OdMT8bii-1xNXC-XyWaQh42WCsiD4IpXFFmcpLkzWeH77-1EQl-LZohczMg8enTgJ4okiE5AvQ0jKbGvs5ToLLCIjToQoIHms5uoIwsw\" alt=\"\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">EnergyPlus (IDF) and OpenStudio (OSM) compatible models<\/h3>\n\n\n\n<p><strong>IDF is the reference input data format in EnergyPlus<\/strong> and it is possible to share this file with OpenStudio. As in the case of SketchUp, it is necessary that the IDF files are updated to the version used by OpenStudio, in the case of OpenStudio version 3.1.0 <strong>The supported EnergyPlus version is 9.4.&nbsp;<\/strong><\/p>\n\n\n\n<p>It is possible to work with IDF files generated with a previous version, using <strong>IDF Version Updater<\/strong>, which is a feature included within the EnergyPlus installation package.<\/p>\n\n\n\n<p><strong>OSM is OpenStudio&#039;s own input data format<\/strong>. You can share geometry between several OpenStudio models or use programs that have a valid export to this format.<\/p>\n\n\n\n<p>Energy certification programs or justification of the CTE according to Spanish regulations such as CYPE through the program <strong>Cypetherm HE Plus<\/strong> either <strong>TeKton3D<\/strong>, perform an export to EnergyPlus to calculate and obtain results from the energy simulation of the building. It is possible to take advantage of these IDF files to import the geometry into OpenStudio.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh4.googleusercontent.com\/IVsXbEJXblU9A67ggog2vU4RGcUKbnifJc_NX6ehVHlLiaLJibRdcdn6W5bov-OSY5RijaGT2RISOCxxw4hm2jIqXExwgjf1b8jYKoR2CLJXI3apMBXV0WsY46WIwRsYfYYhr-gcXrYzusQ6cg\" alt=\"\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>\n\n\n\n<p>Example of exporting Tekton3D to OSM format<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/faPD02w7tjPW-4OYC8lHYmuyzKl5BR98B9onVDZd9F2B7c0BjX45WVGWxoAX8oBPNJyZsJUXbhfb8pYroq73qI5nj0cpY5L6q5tPlq_RuTgZ9oJkEbH-BCKYCS4n9qmM4QYG5ix0s-rw7dkhLA\" alt=\"\" title=\"\"><figcaption>Own elaboration<\/figcaption><\/figure><\/div>","protected":false},"excerpt":{"rendered":"<p>We talk to you about geometric definition with OpenStudio. We explain how to introduce a workflow and ways to define a valid geometry. It&#039;s very interesting!<\/p>","protected":false},"author":95,"featured_media":32877,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[176],"tags":[],"class_list":["post-32855","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog-ingenieros"],"acf":[],"_links":{"self":[{"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/posts\/32855","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/users\/95"}],"replies":[{"embeddable":true,"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/comments?post=32855"}],"version-history":[{"count":0,"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/posts\/32855\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/media\/32877"}],"wp:attachment":[{"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/media?parent=32855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/categories?post=32855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eiposgrados.com\/eng\/wp-json\/wp\/v2\/tags?post=32855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}