%% Design Iterations for finding optimum number of channels for cooling % % Copyright 2020-2026 The MathWorks, Inc. iterSize=max(size(nChannel_options)); battery_result=zeros(iterSize,4); disp('Start module design iterations') for i=1:iterSize BEV_Battery_Plant_Model_paramModule; coolantPlate_area=battery_cellW*battery_Ns*battery_Np*battery_cellT; coolantPlate_nChannels=nChannel_options(i); coolantPlate_diaDistributor=sqrt(coolantPlate_nChannels)*coolantPlate_diaChannels; % Coolant plate thickness = f(distributor pipe thickness) coolantPlate_thickness=max(coolantPlate_diaChannels,(pi*0.25*coolantPlate_diaDistributor^2)/min(coolantPlate_distributorWidMax,coolantPlate_diaDistributor)); coolantPlate_mass=(coolantPlate_area*coolantPlate_thickness)*coolantPlate_density-(coolantPlate_nChannels*0.25*battery_cellW*pi*coolantPlate_diaChannels^2)*(coolantPlate_density-1000); fprintf('*** Simulating for a cooling plate with %i channels \n',coolantPlate_nChannels) sim('Battery_Module_Design'); battery_cellT=simlog_Battery_Module_Design.BatteryModule.outputCellTemp.series.values; battery_cellTavg=sum(battery_cellT,2)/size(battery_cellT,2); battery_deltaTmean=abs(max(battery_cellTavg)-ambientTemp); battery_deltaT=max(max(battery_cellT,[],2)-min(battery_cellT,[],2)); battery_deltaP=max(simlog_Battery_Module_Design.CoolantPlate.presSensor.series.values); battery_result(i,1)=battery_deltaT; battery_result(i,2)=battery_deltaTmean; battery_result(i,3)=battery_deltaP; battery_result(i,4)=coolantPlate_mass; end battery_plot=zeros(iterSize,max(size(weightFraction))+1); for i=1:max(size(weightFraction)) battery_plot(1:end,i)=battery_result(1:end,i)/max(battery_result(1:end,i)); end battery_plot5_tmp=zeros(iterSize,1); for i=1:max(size(weightFraction)) battery_plot5_tmp(1:end,1)=battery_plot5_tmp(1:end,1)+battery_plot(1:end,i)*weightFraction(1,i); end battery_plot(1:end,max(size(weightFraction))+1)=battery_plot5_tmp(1:end,1)/max(battery_plot5_tmp(1:end,1)); % indx=find(min(battery_plot(1:end,5))==battery_plot(1:end,5)); numChannelsOpt=nChannel_options(1,indx); fprintf('Module design iterations Completed \n *** Optimum number of channels = %i \n',numChannelsOpt)