Document oDDRva0JJbkjQbmZDMZJBvxoo

THERMINOL 66 HEAT TRANSFER FLUID HEAT TRANSFER PROPERTIES 0635020 NOTICE: "Nothing contained herein is to be construed as a recommendation to use any product in conflict with any patent. MONSANTO MAKES NO WARRANTIES AS TO THE FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OF ANY PRODUCT REFERRED TO, no guarantee of satisfactory results from reliance upon contained information or recommendations, and disclaims all liability for any resulting loss or damage." _____________________________________________________ Monsanto industrial Chemicals Co. A Unit of Monsanto Company 800 No. Lindbergh Blvd., St. Louis, Mo. 63166 Monsanto H H H H I TOWOLDMON0040304 WATER_PCB-00024773 THERMINOlff 66 HEAT TRANSFER FLUID HEAT TRANSFER PROPERTIES INTRODUCTION Some Therminol users have requested expansion of the property data in our Therminol 66 IC/FF-64 Bulletin. Specifically, more data points were requested and some comment on the meth odology of measurement and the associated accuracy. CONTENTS Table 1 lists data at 20F. increments for the following prop erties: vapor pressure, specific heat, density, viscosity and thermal conductivity. Section 1 discusses the experimental methodology and expected accuracy. Table 2 lists the experimental data. Section 2 contains graphical displays of the experimental data and lists equations derived to fit the experimental data. These equa tions for Therminol 66 were used to computer calculate the data presented in Table 1. 0635021 " Registered Trademark of Monsanto Company, St. Louis, Missouri I TOWOLDMON0040305 WATER_PCB-00024774 Table 1 Properties of Therminol 66 Heat Transfer Fluid (Derived from Equations in Table 3) `Temperature F *C Vapor Specific Kinematic Thermal Pressure Heat, Density Viscosity. Conductivity pi BTU/lbF lb/oal lb/ft3 cSt BTU/HrPt^F 0 20 <10 60 80 100 120 140 160 180 200 220 240 260 260 300 310 320 330 340 330 360 370 380 390 400 410 420 430 440 430 460 470 480 490 500 310 520 330 340 930 560 570 560 590 600 610 620 630 640 650 660 670 660 690 700 -16 -7 4 16 27 38 49 60 71 82 93 1.04 1.16 1.27 136 149 1.54 160 1.66 1.71 1.77 182 1.60 193 J 99 *04 210 *16 221 *27 232 238 *43 249 234 260 *66 *71 *77 *82 288 *93 299 304 !>10 316 321 327 332 338 343 349 354 360 366 371 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0,01 0,02 0.03 0.03 0.07 0.08 0.10 0.12 0.13 0.19 0.23 0.27 0.33 0.39 0.46 0.33 0.65 0.77 0,90 1.08 1.22 1.42 1.64 1.89 2.18 2.SO 2.86 3.26 3.71 4.22 4.77 5.39 6.06 6.83 7.67 8.56 9.59 10.69 11.90 13.22 14.66 16.22 17.92 19.76 0.347 0.357 0.366 0.375 0.363 0.394 0.4U3 0.413 0.422 0,431 0.441 0.450 U.460 0.469 0.478 0.468 0.492 0.497 0.502 0.506 0.511 0.316 0.520 0.525 0.530 0.534 0.539 0.544 0.548 0.SP3 0.538 0.562 0.567 0.572 0.577 0.S81 0.566 0.591 0.593 0.600 0.605 0.609 0.614 .0.619 0.623 0.628 0.633 0,637 0.642 0.647 U.6S1 0.636 0.661 0.665 0.870 0.673 8.62 8.55 8.49 8.43 8.36 8.30 8.24 8.18 a.11 8.05 7.99 7.92 7.A6 7.80 7.73 7.67 7.64 7.61 7,58 7.54 7.51 7.48 7.45 7.42 7.39 7.36 7.32 7.29 7.26 7.23 7.20 7.17 7.13 7.10 7.07 7.04 7.01 6.98 6.94 6.91 6.88 6.85 6.82 6.79 6.76 6.72 6.69 6,66 6.63 6.60 6.57 6.53 6.50 6.47 6.44 6,41 64 .46 63 .99 63 .52 63 .04 62 .37 62 .10 61 .63 61 .16 60 .68 60 ,21 59 .74 59 .27 58 .80 58 .32 37 .83 37 .38 57 .14 56 .91 56 .67 56 .44 56 .20 35 .96 55 .73 35 .49 55 .26 55 .02 54 .78 54 .55 54 .31 54 .08 53 .84 S3 .60 53 .37 53 .13 52 .90 52 .66 52 .42 3? .19 31 .93 31 ,72 51 .48 51 .24 51 .01 SO .77 50 .54 50 .30 SO .06 49 .83 49 .59 49 .36 49 .12 43 .88 48 .65 4e .41 40 .18 47 .94 50000.00 3000.00 500.00 130.00 f.0.00 30.00 18.21 11.93 8.30 6.07 4.61 3.62 2.92 2.41 2.03 1.74 1.61 1.51 1.41 1,32 1.25 1.18 1.11 1.03 1.00 0.95 0.91 0.87 0.83 0.80 0,77 0.74 0.71 0.69 0.66 0.64 0.62 0.60 0.59 0,57 0.S5 0.34 0.53 0.51 0.50 0.49 0.48 0.47 0.46 0.45 0.44 0.43 0.43 0.42 0.41 0.41 0.0704 0,0701 0.0698 0.0694 0,0691 0.06A7 0.0683 0.0679 0.0675 0,0671 0.0666 0.0662 0.0657 0.0652 0.0647 0.0642 0.0639 0.0636 0.0634 0.0631 0.0628 0.062S 0.0622 0.0619 0.0616 0.C613 0.0610 0,0607 0.0604 0.0601 0.0398 0.0594 0.0591 0.0588 0.0504 0.0581 0,0578 0.0574 0,0371 0,0567 0,0364 0.0560 0.0556 0.0553 0.0549 0.0545 0,0541 0.0537 0.0333 0.0530 0.05*6 C,0522 0.0517 0.0513 0.0509 0,0503 NOTICEt "These data ara based upon samples tested in the laboratory and are not guaranteed for all samples." 0635022 TOWOLDMON0040306 WATER_PCB-00024775 Section 1 Bxperimental Methodology and Accuracy SUMMARY Existing equipment and methods were used to determine the vis cosity, density, specific heat and thermal conductivity of Therminol 66 over the temperature range of -17.8 to 260c. (0 to 550F.) A tabulation of these data is shown in Table 2 and presented in graph form in Figures 1, 2, 3 and 4. Some extrapolation of the data is possible without danger of serious error, particularly where measured data are linear. The special ASTM viscosity scales facilitate this extrapo lation for high temperature data (Figure 4). Bath temperatures, as reported in this study, were measured with mercury in glass thermometers readable to 0.01'C. and standardized against a 25 ohm platinum resistance thermometer. The reference platinum thermometer was recently certified to conform to the IPTS-68 standard. All experimental data accuracies are estimated to be in the range of + 2% or better with specific heat and thermal con ductivity data having the higher absolute errors. DETAILS The four heat transfer properties were measured on Therminol 66 (Lot AE-18) by the following equipment and methods: 1. Viscosity - measured with Cannon-Fenske Routine and Ubbelohde type viscometers, immersed in a Hallikainen low temperature bath (Model 1087D) or a Dow Corning 550 sili cone oil bath. Drying tube protection at sub-ambient and dry nitrogen purge at high temperatures were employed to avoid sample degradation. Bath temperature control and accuracies were + 0.01'C. or better. 2. Density - measured with a nominal 10 ml pycnometer at sub ambient and a Westphal balance and vycar plummet at ele vated temperatures. A 25 x 150 mm test tube, immersed in the DC-550 silicone oil bath (viscosity reference), allowed concurrent measurement of the two properties. Overall accuracy of + 1% or better is estimated for these measure ments . 0635023 TOWOLDMON0040307 WATER_PCB-00024776 3. Specific Heat - measured with a Perkin Elmer Differential Scanning Calorimeter (DSC-2), using 24 karat gold, hermet ically sealed, volatile sample pans. Temperature accuracy of 1C, and curve measurement errors of + 1% give and overall accuracy of about + 2% for the data. 4. Thermal Conductivity - measured with our transient, plat inum hot-wire apparatus. The Hallikainen low temperature and a specially insulated DC-550 oil bath were used to provide the precise control thermostats needed. Data from the current study agree quite well with previous measure ments with the same apparatus. some extra effort was taken to obtain data at elevated temperatures, because low fluid viscosity allows conduction by convection with in the cell in extended time and higher power measure ments . 0635024 NOTICE: "Nothing oonttlnod Horoln Is to bs construed as a recommendation to uao any product In conflict with any potont. MONSANTO MAKES NO WAR. (UNTIES AS TO THE FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OF ANY PRODUCT REFERRED TO. no guarantoo of satisfactory rasulta from rolianoa upon contained Information or recommendations, and disclaims all liability for any resulting lost or damage." TOWOLDMON0040308 WATER_PCB-00024777 Table 2 Ther*inol66 Heat Transfer Fluid Heat Transfer Properties (1) Property 1. Viscosity, Kinematic (centistokes) -17.8 -10.0 0.0 10.0 2U.0 Temperature (9C) 25.0 50.0 60.0 2,700 3653 710.7 208.4 - 55.55 14.25 - 100.0 140.6 IbO.O 160.1 200.0 220.0 260.0 300.0 3.40 1.787 1.565 1.148 0.906 0.833 0.632 - 2. Density, (grams/ml) 3. Specific Heat, (cal/gramC) 1.037 1.028 1.021 1.013 1.006 1.003 0.936 - 0.953 0.924 - 0.898 - 0.870 0.841 - - - - - 0.376 0.377 0.404 0.414 0.449 0.480 0.483 0.513 0.551 0.550 0.582 0.614 4. Thermal Conductivity (Watts/iueter Kr' 1.1218 0.1196 -- -- 0.1172 0.1149 -- 0.111 -- 0.1060 -- 0.1002 -- Note: 1 2 Listed values are expermintal data. Multiply by 0.5770 to convert to BTO/ft.hourF. NOTICE: "These data are based upon samples tested in the laboratory and are not guaranteed for all samples." TOWOLDMON0040309 WATER_PCB-00024778 0635025 Section 2 Graphs and Equations Figure 1 -- Density versus Temperature Figure 2 -- Specific Heat versus Temperature Figure 3 -- Thermal Conductivity versus Temperature Figure 4 -- Viscosity versus Temperature Table 3 -- Equations 0635026 TOWOLDMON0040310 WATER_PCB-00024779 10 x 10 TO V) INCH 46 1322 KlUfFEL C9SEB CO. DENSITY, g /m l TEMPERATURE. C . NOTICIi "These data are based upon samples tested in the laboxatory and ate not guaranteed for all samples." TOWOLDMON0040311 WATER_PCB-00024780 KJE fO X lO TO V> INCH 46 1322 KEUFFEL * (KM CO. SPECIFIC HEAT, c a l/g ra m TEMPERATURE, C notices "These data are based upon saaples tested in the laboratory and are not guaranteed tor all samples. " I I WATER_PCB-00024781 K*1 to X JO TO Vx INCH 7 X IO INCHES 46 132a KCUFFEL * ESSEJt L CONDUCTIVITY, (w a tts /m e te r K )* OooJUl orssj TEMPERATURE, c hOTICBj `These data see based upon saaples tested in the labocatoiy end are not guaranteed Cor all saaplee." I I WATER_PCB-00024782 0635030 TOWOLDMON0040314 WATER_PCB-00024783 Table 3 Equations* for Therminol66 Heat Transfer Fluid Physical Properties as a Function of Temperature Pv (psia) = exp [14.2331 - 13045.9/T(R)] p(lb/ft3) - 64.46 - 0.0236t(F) ' /(BTU/hr f tF) = 0.07039-1.496xlO_st(F)-1.92x10-* t^F3 ) Cp (BTU/lbF) = 0.3472+0.000468t(F) 7) (cSt) - 10 exp [lO exp [12.08855-4.33630 log T(R)]l-0.75 `(T5100F) 10 J Derived from data in Table 2. NOTICE: "These data are based upon samples tasted in the laboratory and are not guaranteed for all samples." 0635031 TOWOLDMON0040315 WATEFLPCB-00024784