Table 4. AAD of the Model Prediction Value Against Experimental Data of SNGs.
AADb(NRPc) |
||||||||
---|---|---|---|---|---|---|---|---|
SNG (NP) | SRK | PR | SRK–Twu | TST | PRSV | GERG-2008 | PSRK | PC-SAFT |
SNG1(18) | 1.46(2) | 3.06(2) | 1.93(2) | 3.20(3) | 2.76(2) | 0.69(2) | 2.56(2) | 2.07(3) |
SNG2(18) | 1.19(2) | 2.23(2) | 2.03(1) | 2.76(2) | 2.19(2) | 0.74(2) | 2.66(1) | 1.08(3) |
SNG3(16) | 0.65(0) | 2.23(0) | 0.98(0) | 2.87(0) | 2.74(0) | 0.43(0) | 1.58(0) | 1.67(0) |
SNG4(23) | 2.36(0) | 4.49(0) | 2.39(0) | 4.96(0) | 4.23(0) | 2.13(1) | 3.12(0) | 3.09(1) |
SNG5(20) | 1.08(0) | 2.81(0) | 1.09(0) | 3.56(0) | 3.45(0) | 0.71(1) | 1.69(0) | 2.29(0) |
SNG6(20) | 2.58(0) | 1.62(0) | 3.35(0) | 1.71(0) | 1.61(0) | -d | 2.40(0) | 2.80(0) |
SNG7(13) | 3.61(0) | 2.18(1) | 4.83(0) | 2.36(0) | 2.90(0) | -d | 2.76(0) | 3.19(1) |
SNG8(18) | 2.98(1) | 1.35(1) | 3.23(1) | 1.48(1) | 1.64(1) | 2.63(1) | 2.72(1) | 2.70(1) |
SNG9(25) | 2.55(3) | 2.32(4) | 2.71(1) | 2.62(3) | 2.55(3) | -d | 2.57(2) | 4.86(3) |
SNG10(28) | 4.7(2) | 3.82(3) | 5.22(0) | 4.37(2) | 4.26(2) | -d | 4.64(1) | 6.08(3) |
SNG11(26) | 2.65(3) | 1.99(5) | 2.38(2) | 2.16(5) | 2.20(4) | 2.46(3) | 2.30(2) | 3.90(3) |
SNG12(18) | 1.35(0) | 1.90(3) | 1.18(0) | 0.79(2) | 1.34(0) | 1.43(0) | 1.41(0) | 0.74(1) |
SNG13(17) | 1.59(3) | 2.64(4) | 1.92(4) | 2.43(4) | 1.93(4) | 2.07(3) | 2.07(4) | 1.35(4) |
SNG14(17) | 1.43(0) | 1.97(2) | 1.14(0) | 0.85(0) | 1.19(0) | 1.50(0) | 1.51(0) | 0.85(0) |
SNG15(18) | 1.03(0) | 3.15(0) | 0.79(0) | 2.99(0) | 1.70(0) | 0.74(0) | 1.05(0) | 1.39(0) |
SNG16(27) | 0.76(3) | 3.23(5) | 0.81(1) | 3.15(5) | 1.89(3) | 0.87(3) | 0.85(2) | 1.02(5) |
SNG17(15) | 1.24(3) | 1.65(3) | 1.40(3) | 1.28(3) | 1.65(3) | 0.90(3) | 2.77(3) | 2.80(3) |
SNG18(19) | 0.68(2) | 1.70(3) | 1.15(2) | 1.78(3) | 1.62(3) | 1.06(2) | 1.38(2) | 1.95(3) |
SNG19(22) | 1.02(4) | 2.05(4) | 1.48(4) | 2.27(4) | 2.00(4) | 1.00(4) | 1.73(4) | 0.91(5) |
SNG20(14) | 0.92(2) | 2.16(3) | 1.20(3) | 1.94(3) | 1.20(3) | 2.41(2) | 2.07(3) | 1.38(2) |
SNG21(63) | 1.11(0) | 0.68(0) | 0.88(0) | 3.41(0) | 1.26(0) | 0.58(0) | 0.55(0) | 9.41(0) |
SNG22(47) | 1.99(0) | 2.77(0) | 2.33(0) | 2.45(0) | 2.04(0) | 1.19(0) | 2.60(0) | 2.56(0) |
SNG23(100) | 1.79(0) | 3.37(3) | 2.04(0) | 4.13(3) | 3.30(0) | 1.54(0) | 2.54(0) | 2.52(2) |
SNG24(12) | 2.16(1) | 2.15(2) | 2.09(1) | 2.09(2) | 1.78(2) | 2.36(2) | 2.04(1) | 2.10(2) |
SNG25(8) | 2.35(2) | 5.27(2) | 2.42(2) | 5.60(2) | 3.76(2) | 1.88(2) | 2.58(2) | 2.50(2) |
SNG26(23) | 2.81(2) | 4.66(3) | 3.03(2) | 4.40(2) | 3.02(2) | 2.17(2) | 3.44(2) | 3.16(2) |
SNG27(33) | 1.93(0) | 3.41(3) | 1.42(0) | 4.22(2) | 2.23(1) | 1.31(0) | 1.92(0) | 2.75(2) |
SNG28(34) | 1.41(5) | 3.45(6) | 1.59(3) | 3.79(6) | 1.97(4) | 1.60(2) | 2.23(3) | 2.37(5) |
Overall(712) | 1.83(40) | 2.65(64) | 2.04(32) | 2.84(57) | 2.30(45) | 1.44(35) | 2.21(35) | 2.63(56) |
NP, number of experimental data points.
AAD, average absolute deviations, °C.
NRP, number of rejected data points.
The GERG-2008 model cannot be adopted because of its limited component list.