{"id":50137,"date":"2020-11-26T08:51:06","date_gmt":"2020-11-26T08:51:06","guid":{"rendered":"\/forum\/forums\/topic\/fluent-fuel-nox-prediction-problem\/"},"modified":"2020-11-26T08:51:06","modified_gmt":"2020-11-26T08:51:06","slug":"fluent-fuel-nox-prediction-problem","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/fluent-fuel-nox-prediction-problem\/","title":{"rendered":"Fluent Fuel NOx prediction Problem"},"content":{"rendered":"<p>Hello My Friends, nI&#8217; m trying to model NH3-oxy combustion and i have to predict temperature and emission distribution in my combustion field. Since i&#8217; m familiar with non-premixed combustion model (pdf mixture fraction) and it does not require chemical kinetics parameters, this model is very convenient for my knowledge. nMy problem is that since there is nitrogen in the fuel, i have to take into account fuel nox calculations. But there is not any option in fluent post processing to estimate fuel nox in non-premixed combustion model. Only thermal and prompt nox are included. nI have also tried the get fuel nox prediction by using species transport \/ eddy dissipation model but this model predicted higher temperature profile and therefore inaccurate nox emissions than experimental results. ( i remain mixing rates A: 4 and B: 0.5 default values). I think, maybe i could get more accurate solutions via eddy dissipation consept or finite rate\/eddy dissipation model but arrhenius parameters are required for these models and i don&#8217;t have any data related to pre-exponantial factor , activation energy etc. for my NH3+O2=N2+H2O reaction. nMy question is that , can i predict nox emissions including fuel nox via non-premixed combustion model. If there is a solution about this issue , it will be very helpful for me. nYour suggestions are very important to me and if we can find a solution , i will be able to finish my dissertation. nThanks in advance.Ozan<\/p>\n","protected":false},"template":"","class_list":["post-50137","topic","type-topic","status-closed","hentry","topic-tag-fluent","topic-tag-non-premixed-combustion","topic-tag-nox-emissions"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_bbp_old_topic_id":["22380"],"_bbp_old_topic_author_name_id":["Anonymous"],"_bbp_old_is_topic_anonymous_id":["false"],"_bbp_old_closed_status_id":["publish"],"_bbp_author_ip":["X?;\u0002"],"_bbp_old_sticky_status_id":["normal"],"_bbp_likes_count":["0"],"_btv_view_count":["2248"],"_bbp_topic_status":["unanswered"],"_bbp_status":["publish"],"_bbp_topic_id":["50137"],"_bbp_forum_id":["27792"],"_bbp_engagement":["125","167303"],"_bbp_voice_count":["2"],"_bbp_reply_count":["2"],"_bbp_last_reply_id":["135896"],"_bbp_last_active_id":["135896"],"_bbp_last_active_time":["2020-12-13 15:10:11"]},"test":"ozankekul"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/topics\/50137","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\/50137\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/forum\/wp-json\/wp\/v2\/media?parent=50137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}