0.02 



0.04 



0.06 



a 08 010 



Reciprocal of ~/o^v. 



Figure 12. Apparent Joule-Thomson effect {tx' = AT/Ap) vs. reciprocal 

 of flow. All fi' 's are reduced to a mean temperature of 165° C. The average 

 mean pressure, all values of m', is 4.02 kgm./ cm.^ abs. The average mean 

 pressure for the runs with plug S is 3.86 kgm./cm.^ abs. Al, A2, A3 and A4 

 refer to axial flow plugs, Ul, U2, VI, V2, and S to radial flow plugs. The 

 intercept of the line S on the axis of fx' is believed to be the true value of m, 

 within 1%. The numbers adjoining the plotted points indicate the number 

 of runs involved. 



