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11EGeminus Boeing Project Contract No.EVE-16-2929 <br /> 1Technology Development CEI Project No. 160731 <br /> 'N, <br /> IOW* <br /> ,N*Olk_ <br /> .. '''''-:._;::: -- ---,-1,--'7_ .itilW, <br /> o -- o 'i/ c <br /> 1).—.. - , .--:40000e:j,--.: -------- -. 1 <br /> 0'., ))-'-1,...:%,-;:-:--,er,01.,,:,:-.- --;-,-_,..,;,,_,N.,-:-,4...- - - <br /> 40 <br /> iictt <br /> 1114tai,t -- N.le,:-.4---4-0- 0 „, i <br /> -. 11 <br /> O � O <br /> � . � j`` <br /> yl <br /> K_N, �,i ( . DO i , <br /> O <br /> l �'� i <br /> , li' <br /> Figure 30: 45-04 Case 1/Scenario 2 computational flow volume components — note the <br /> addition of the stackers not present in Case 1/Scenario 1. <br /> For Case 1/Scenario 2, the active supplies and exhausts were similar to Case 1/Scenario 1. <br /> Also similar to Case 1/Scenario 1, the CFD model was set up to model the injection and track the <br /> concentration of the heptan-2-one gaseous component of the overspray. Figure 31 shows the <br /> locations and orientations of the spray guns used in this simulation. <br /> Percent LEL values were calculated based on the LEL concentration of 1.1% (molar fraction <br /> of 0.011) in air (see 2.2.3). Thus the CFD-generated % of LEL was computed by dividing the <br /> computed heptan-2-one mole fraction by 0.011 and multiplying by 100. Therefore a 1% value of <br /> % of LEL represents a 100x lower concentration than that required for combustion to occur from <br /> a low energy ignition source. <br /> 41 <br />