{"id":305600,"date":"2023-09-08T19:53:12","date_gmt":"2023-09-08T19:53:12","guid":{"rendered":"\/forum\/forums\/topic\/collection-of-test-data-for-fluents-battery-parameter-estimation-tool\/"},"modified":"2023-09-08T19:53:12","modified_gmt":"2023-09-08T19:53:12","slug":"collection-of-test-data-for-fluents-battery-parameter-estimation-tool","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/collection-of-test-data-for-fluents-battery-parameter-estimation-tool\/","title":{"rendered":"Collection of test data for Fluent&#8217;s Battery Parameter Estimation Tool"},"content":{"rendered":"<p>I&#8217;m currently interested in using Ansys Fluent to model the heat dissipation of a Lithium Ion Battery. I&#8217;ve been referencing the Fluent manual for development, however I am curious about the input data for the ECM parameter estimation tool. The following is an excerpt from the Fluent manual 30.2.3.4.4. I have a couple of questions about the data collection:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/mail.google.com\/mail\/u\/0?ui=2&amp;ik=d6e924114a&amp;attid=0.1&amp;permmsgid=msg-a:r4896949544568551072&amp;th=18a7626015e812a9&amp;view=fimg&amp;fur=ip&amp;sz=s0-l75-ft&amp;attbid=ANGjdJ_kOxOFaBzY86OfRMy-gueeVFj093RiqySmS9s5M_W6iZvNctI-_lMyeFAWqxMj2m2ZAd1uZTvZpxZmE_YTaiCgU-Wh-hA1Pi4xNeIcgIWCfODbf1XRnIXpd_A&amp;disp=emb&amp;realattid=ii_lmayi6181\" alt=\"image.png\"><\/p>\n<p>My questions are as follows:&nbsp;<\/p>\n<ul>\n<li>Does the pulse current need to be constant throughout the discharge? Our team was thinking about applying a load through the resistor to get a measurable current, however it would change throughout discharge as the voltage of the battery drops. Is it critical that we use an e-load for a constant current, or is an approximately measured current with the resistor sufficient?<\/li>\n<li>How long do we have to pulse the battery for? My interpretation of the manual is that pulse length is not important as long as the voltage data contains data from the rest, pulse, and relaxation period.<\/li>\n<li>Is SOC measured absolutely from the battery, or arbitrarily as determined by our operating range? For example, batteries are rated to be in the range of 2.8V to 4.2V, but we want to keep them in the range of 3.0V &#8211; 4.0V. So would a voltage of 3.0 correspond to a 0 SOC (as calculated in our range) or a 0.14 SOC (as calculated in the battery&#8217;s range)?<\/li>\n<\/ul>\n<p>Any help would be appreciated, thank you!<\/p>\n","protected":false},"template":"","class_list":["post-305600","topic","type-topic","status-closed","hentry","topic-tag-msmd-battery-model","topic-tag-parameter-estimation-tool"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_subscription":["11752","5976"],"_bbp_author_ip":["23.206.193.41"]," _bbp_last_reply_id":["0"]," _bbp_likes_count":["0"],"_btv_view_count":["446"],"_bbp_topic_status":["unanswered"],"_bbp_likes_count":["1"],"_bbp_status":["publish"],"_bbp_topic_id":["305600"],"_bbp_forum_id":["27792"],"_bbp_engagement":["5976","11752"],"_bbp_voice_count":["2"],"_bbp_reply_count":["1"],"_bbp_last_reply_id":["306325"],"_bbp_last_active_id":["306325"],"_bbp_last_active_time":["2023-09-12 11:17:52"]},"test":"evansandovalberkeley-edu"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/305600","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/305600\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=305600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}