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IM-PR 566442 1114 (Design Manual)

104

Specific Heat of Propylene Glycol Solutions (Btu/lb/°F)

Temperature

(°F)

Propylene Glycol Concentration by Volume

10% 20% 30% 40% 50% 60% 70% 80% 90%

-30 0.741 0.680 0.615 0.542

-20 0.799 0.746 0.687 0.623 0.550

-10 0.804 0.752 0.693 0.630 0.558

0 0.855 0.809 0.758 0.700 0.637 0.566

10 0.898 0.859 0.814 0.764 0.707 0.645 0.574

20 0.936 0.902 0.864 0.820 0.770 0.713 0.652 0.583

30 0.966 0.938 0.906 0.868 0.825 0.776 0.720 0.660 0.591

40 0.968 0.941 0.909 0.872 0.830 0.782 0.726 0.667 0.599

50 0.970 0.944 0.913 0.877 0.835 0.787 0.733 0.674 0.607

60 0.972 0.947 0.917 0.881 0.840 0.793 0.740 0.682 0.615

70 0.974 0.950 0.920 0.886 0.845 0.799 0.746 0.689 0.623

80 0.976 0.953 0.924 0.890 0.850 0.805 0.753 0.696 0.631

90 0.979 0.956 0.928 0.894 0.855 0.811 0.760 0.704 0.639

100 0.981 0.959 0.931 0.899 0.861 0.817 0.766 0.711 0.647

110 0.983 0.962 0.935 0.903 0.866 0.823 0.773 0.718 0.656

120 0.985 0.965 0.939 0.908 0.871 0.828 0.779 0.726 0.664

130 0.987 0.967 0.942 0.912 0.876 0.834 0.786 0.733 0.672

140 0.989 0.970 0.946 0.916 0.881 0.840 0.793 0.740 0.680

150 0.991 0.973 0.950 0.921 0.886 0.846 0.799 0.748 0.688

160 0.993 0.976 0.953 0.925 0.891 0.852 0.806 0.755 0.696

170 0.996 0.979 0.957 0.929 0.896 0.858 0.812 0.762 0.704

180 0.998 0.982 0.961 0.934 0.902 0.864 0.819 0.770 0.712

190 1.000 0.985 0.964 0.938 0.907 0.869 0.826 0.777 0.720

200 1.002 0.988 0.968 0.943 0.912 0.875 0.832 0.784 0.729

210 1.004 0.991 0.971 0.947 0.917 0.881 0.839 0.792 0.737

220 1.006 0.994 0.975 0.951 0.922 0.887 0.845 0.799 0.745

230 1.008 0.996 0.979 0.956 0.927 0.893 0.852 0.806 0.753

240 1.011 0.999 0.982 0.960 0.932 0.899 0.859 0.814 0.761

250 1.013 1.002 0.986 0.965 0.937 0.905 0.865 0.821 0.769

Table 5-7 Specific heat of propylene glycol solutions