NEW LIMITATION CHANGE TO

1 UNCLASSIFIEDAD NUMBERAD225705 NEW LIMITATION CHANGETOA pproved for public release, distributionunlimitedFROMD istribution authorized to Gov' and their contractors;Administrative/Operational Use; Jun requests shall be referred to WrightAir Development Center, Materials Lab.,Wright-Patterson AFB, OH ltr dtd 23 Sep 1959 THIS PAGE IS UNCLASSIFIEDAD-i 4 FORMIC RC; -CAl Z OReproduced 6y LLALAiFIIared ServiceslchnicalInformatin figencii 1C " FOR"NOTICE: When Government or other drawings, specifications orother data are used for any purpose other than in .. Withadefinitely related Government procurement operation, the ,Government thereby incurs no responsibility, nor any obligationwhatsoever; and the fact that the Government may have formulated,furnished, or in any way supplied the said drawings, specificationsor other data is not to be regarded by implication or otherwise asin any manner licensing the holder or any other person or corpora-t-on, or conveying any rights or permission to manufacture, use orsell any patented invention that may in any way be related thereto.

2 "KINWAI)" TEC'INICAL. iE'(O)RT ;!. It;#;cl-S--HEAT CAPACITY DETERMINATION OF MINERAL AND__ SYNTHETIC ENGINE OILS. lubricants . FUELS. ANCHYDRAULIC FLUIDS IN THE TEMPERATURERANGE 700-500 OFC'. (". BlohnC. E. H 1V. IfirrgerS hlfidireo!s IesrcI Ir titutcASTIAAOIP4 YOTON HALL STATIONAdiINOTON I1, VIGoINtAAVYIT \II,.WADC rIf-,4 HNICAL REPORT 59-166 HEAT CAPACITY DETERMINATION OF MINERAL ANDSYNTHETIC FNGINE OILS, lubricants , FUELS, ANDHYDkMULIC FLUIDS IN THE TEMPERATURERANGE 70"-5000F7T. M. MedvedC. C. BolzcC. E. HansenJ. W. BargerMidwest Research InstituteJUNE 1959 Materials LaboratoryContract No. AF 33(616)-5269 Project No. 7360 Task No. 73603 WRIGHT AIR DEVELOPMENT CENTERAIR RESEARCH AND DEVELOPMENT COMMANDUNITED STATES AIR FORCEWRIGHT-PATTERSON AIR FORCE BASE, OHIOFOREVT)RDThJs report was prepared by Midwes6 Research Institute underUSAF Contract No.

3 AF 3-(616) contract was initiated under Project No. 7360, "IaterialsAnalyses and Evaluation TechnIques", Task No. 73603, "Thermodynamics andHeat Transfer". It was administered under the direction of the MaterialcLaboratory, Directorate of Laboratories, Wright Air Development Center,with Mr. Robert A. Winn acting as project report covers work conducted from March 1958 to January work was carried out under the supervision of Dr. John , Head, Inorganic Chemistry Section, and Dr. B. W. Beadle, Manager,Chemistry and Chemical Engineering Division. This report was prepared byMr. Thomas M. Medved, who acted as project leader. Preparation of theexperimental design and computations were supervised by Mr.

4 Calvin C. Bolze,Chemical Statistician. The calorimeter was designed by Mr. R. L. Hughesand Dr. J. J. Downs. Mr. C. E. Hansen performed the work and prepared thesections on the Latent Heat of Vaporization of Phenyl Ether J. J. Downs designed and built the calorimeter for latent heat ofvaporization 'AIX 'iP[ o -i66 ABSTRACTThe heat capacities of 33 mineral and synthetic engine lils, lubricants , fuels, and hydraulic fluids were measured over a te-iperaturcrange of 800 to constants were obtained by internal standardizationforegoing the use of a standard calculated errors in the final resultz were 5 to 5 per c:omparison cf latent heats of vaporiza ion of phenyl ethersamples is REVIEWThis report has been reviewed and is THE 4zbergChief, Materials Physi.]

5 - B hcMaterials Laboratory'ADTC TR 59-166 iiiTABLE OF CONTEMSPage One -Heat Capacity .. II. Introduction ..II. Summary and Conclusions ..III. Discussion and FEsults .. 2IV. Experimental ..38A. Equipment ..38B. Procedure ..40C. Calculations ..41 Part Two -Latent Heat of Vaporization ..44I. Introduction .. 44I. Summary and Conclusions .. 45 III. Discussion and Results ..45IV..19A. Equipment ..49B. Procedure ..49C. Calculations .. 52 Bibliography ..54 Appendix I ..55 LIST OF ILLUSTRATIONSFig. Not. Title Page Heat Capacity of ML0-56-200 .. 52 Heat Capacity of OLO-57-628 .. 63 Heat Capacity of MLC-58-342 .. 7'XIA[ Pf 59-166 ivLIST OF ILLUSTRATIOIS (Concluded)Fig.]

6 No. Title Pa- Heat Capacity of 0-56-36N ..5 Heat Capacity of 0-56-36U ..6 Heat Capacity of 0-56-57N .. Heat Capacity of 0-56-57-,.. 118 Heat Capacity of 0-57-13 .. 129 Heat Capacity of 0-57-36 .. 1310 Heat Capacity of 0-58-6 ..1411 Heat Capacity of 0-58-8 .. 1512 Heat Capacity of 0-58-12 .. 1613 Heat Capacity of 0-58-13 .. 1714 Heat Capacity of LRO-3 .. 1815 Heat Capacity of Richfield L8-32 ..1916 Heat Capacity of Cal Research fluid 341 .. 2017 Heat Capacity of MLO-58-418 .. 2118 Heat Capacity of MT0-58-432 .. 2219 Heat Capacity of ML0-58-586 .. 2320 Heat Capacity of MLO-58-587 .. 2421 Heat Capacity of ML0-58-588 .. 2522 Heat Capacity of ML0-58-589.

7 2623 Heat Capacity of ML0-58-590 .. 2724 Heat Capacity of MLO-58-591 ..2825 Heat Capacity of ML0-58-654 .. 2926 Heat Capacity of MLO-58-658 .. 3027 Heat Capacity of 0-56-3N .. 3128 Hert Capacity of 0-57-3U ..3229 Heat Capacity of 0-57-19 .. 3330 Heat Capacity of 0-57-37 ..3431 Heat Capacity of LRO- ..3532 Heat Capacity of LRO-2 .. 3633 Heat Capacity of LRO-4 .. 3734 Calorimeter .. 3935 Latent Heat of Vaporization Calorimeter .. 5036 Power Measux .ng and Control Circuit .. TR 59-166 vLIST OF TABLEST able Page Calorimeter Constants .. 3II Heat Capacity, Btu/ib/ F ..3 III Calculated Heat Capacity Vrrors .. 4IV Heat of Vaporization of Pure Phenyl Ether.

8 4CV Latent Heat of Vaporization and Molecular Weight ofTest Samples .. 46VI Boiling Points of Pure Phenyl Ethers ..464 1"C TF 59-166 viPART ONE CAPACITYI. INTRODUCTIONThis work is a continuation of the research reported in WA=C Tech-nical Report 58-701/. New lubricants and hydraulic fluids are being synthe-sized to meet the increased criteria necessitated by modern engines andmissiles. Heat capacity data are necessary for engineering calculations toestimate heat transfer, or thermal diffusivity in bearings or working report, in conjunction with WADC Technical Report 58-70,describes a unique, simple, and rapid method for measuring and calculatingheat capacities over an extended temperature SULMRY AND CONCLUSIONSA diabatic calorimeters were developed which facilitated the meas-urement of the heat capacity of liquid materials stable in the 70 to 500*Ftemperature range.

9 The calorimeters were designed and constructed of glassso that the sample liquid was contained in a Dewar type flask. Mercury wasadmitted to the Dewar jacket to rapidly establish temperature equilibriumbetween the sample and thermostat. Upon reaching equilibrium, the mercurywas removed and the Dewar flask through a trap immersed in liquidnitrogen. This rendered the cal'.- ' -ter nearly method of ealculation used the heat loss rates before andafter the heating cycle and the heat gain rate during the heating rate of energy input to the sample and calorimeter was determined bythe electrical potential and heat capacities of 33 lubricants and hydraulic fluids weremeasured at 80%, 185*, 290', 3950 and 500*F, if they were liquid and stableat these temperatures.

10 Duplicate runs were made using two sample sizes,namely, 75 and 150 ml. This enabled calor'meter coastants to be obtainedwithout the use of a calibrating rloafnnd by the nuthorn26 February 1959 for publication aB aZDC Technical Report.'d n -"" 59-1 ESGThe least squares method was used to calculate the "best-fit"linear relationship between heat capacity and temperature for each of theoils ir the temperature range of 700 to S000F. The error calculated forthese measuremLnts ranged from 3 per cent to 5 per DISCUSSION AND RESULTSEach oil sample was run in duplicate, using 75 ml. in one calorim-etei and 150 ml. in a different calorimeter. Four measurements were made oneach of these samples, giviig a total of eight values at each temperaturepoint.