THESIS Ve This thesis was contributed by Mr. E. A. Towne under the date indicated by the department stam, to replace the original which was destroyed in the fire of Maroh 5, 1916. RECEIVE) PIAA | DEPARTMENT OF- CIVIL ENGINEERING, THE STIS EFFICIENCY TESTS OF KERR STEAM TURBINE A BY \ HI : C. B. PFCK R. A. TOWNE \ | AGRICULTURAL OOLLFAGE, MICHIGAN 1207 - - - - THESIS Y -5| EFFICIENCY TESTS OF KERR STEAM TURBINE The purrose of this test is to determine the efficiencies and some of the characteristics of the Kerr ten horse-power stean turbine. Our objeot has been to determine the efficiencies under different work- ing conditiona, fhe tésts were carried on the testinz labora- tory of the Mechanical Building. The plant oonsisted of the turbine, a surface condenser and vacuum pump, weichins barrels and soales. The machine tested was a twelve inoh, six stage Kerr steau turbine with a ratiny of ten horse- rover at four thousanu revolutions per minute. The prinoipal dimensions are given on the accomranvin; blue prints. The stea. admission is controlled by a thrott- ling governor of the oentrifugal type with « balanced piston valve, the balance bein:: such that in case the governor should break or beoome lcose while running, the valve would at once olose. The governor welghts act against a courression apring and the action is very unstable when near the extreme positions. Considerable trouble was exrerienced with hunting. Stearn. was suy- plied to the turbine and vacuuws pump from the laboratory main which was fed from the Power House durins the eighty round tests ani fro.: the College Road Roller boiler durin the one hundred fifteen pound tests. 264800 ey af... ff The power was absorbed bv a speciaily con- structed friction brake which wan surylicd bv the makers with the machine, The action of the brake was quite satisfactory considering the verv linited amount of surface which was required to radiate all the hrat. fhe cooling water discharged into a reotan- gular basin above the rullev and reached the surface of the rulley by means of several small holes throuch the urrer arn. One or two yiecesn of soar were kert. in the basin continucusly so that th water discharged against theri, fhe brake shoes and yullev surface were thus kert lunricated, and smooth, stradvy aotion resnited. The surface condenser was sur-lied with cocle- ing water from the college water system ani so required no ciroulating rump. The condensed exhaust was pumped out of the condenser and the paouum maintained by a Knowles single aoting purnp. Prom the rump the ccnden- sation was oarried to the weighing platform in the corner of the laboratory where it could be discharged directly intc the sewer after hein: weighed. To weirh the condensation we used two barrels with ick oreniny valves, one beinz rlaoced on the platform of the weighing scales and the other on a riat- form raised to suoh a height that it disoharsed direot- ly into the otiier and the discharge ripe fron the pur emptied into the uprer barrel which acted as a reser- voirwhile the lower barrel was being enyrtied ani the ~ 3- scales balanced. We never had ococasion to use the upper Larrel in the middle of a test because the lower barrel was in every case large enough to hold the total condensed steam consumed during a half hour. The speed was determined by a tachometer outfit made up of a small direct ourrent generator, a reststance box and a voltmeter reading to three volts. The gener- ator fiel:i consists of permanent magnets housed in a spherical shell mounted cn a simrle standard and adjust- able to any heicht ox angle. The armature had few turne of wire and several coils. The armature shaft was directly connected to the end of the turbine shaft by means of a coil spring acting as a flexible shaft. The generator prorer i6 not mere than four inches in dianeter. The tachoneter was calibrated by weans of a countins speed indicator, readings being talen while the turbine was running oonstant. It was found that with a resistanoe of five hundred twenty-six ohria in the rheostat, the voltmeter would read one volt for two thousand revolutions per minute, one an?! cnemhalf volts. for three thousand revolutions, and se on. A calibration was made fror. tine tc time to see that no change took place. Binoe ti:e generator has a ocon=- stant field, the voltage varies directly as the speed. The calorimeter used was a Peabody Throttling Calorineter with expansion chambers oren to the atmose rhere. A amall manometer was attached to the expansion chamber which wially read three or four inches of nere- -~ 4 - ‘Coury. The calorimeter took the satear. through a stan- dard sanpler. The rroessures were measured by means of test gauges and meroury manoneters, using the gauges on steam pressures and the manometer cn vyaocuuns. A gauge read- ing both pressures and vacuums was used on the stages reading nearest aticaphere, In all about twenty tests wore :.ade, each of thirty ninutes duration. Two steam pres::ures were used, eishty pounds and one hundred fifteen pounds by the EaUuge , Three different exhaust vacuums were used rang- ing as high as twenty inohes. Owing toe the incapacity of the condenser runn, it was impossible to hold tho vacuums uniform thrcushout the tests, In some of the heavier loads only one or two vacuums could be reached, } Tests were run with three different loade, quarter, half and three-quarter loads. It was our ine tention to run full load tests but it was impossible with the steam pressures and equirment at hand. It might still have been possible had it not been for the limits time placed uron us. | puring the thirty minutes the tests were run, readings were taken every five minutes, sums and means . of the readings beins taxen for rnurroses: of computation. When startin: a now test with a new set of conditicns as load, vacuum and ctewm: pressure, the turbine was brouv7ht un to sneed anil run ahout fifteen minutes until -~ 6 - conditions got oconstant hefcre the test was made. Owing to the lack of constanoy of vacuum thrcushout the testa, difficulty was met with in get- ting sufficient tests with only two variables for the purpose of rlotting such curves as were desired. Owins to this fact, but oconnaratively few of the teats were used for purposes of plotting. CURVES For the rurreve ef conrarin: the data oF the varicus tents two sets of curves were plotted, the stean consimption load ourves havin; stew: coneumption in pounds rer hour plottsd as ordinates and load Jn horse-power af absoissa for three valves of exhaust pressure. The total stea:: consumption curvea were first plotted, only a few points beinz necessary to detersiine them, and from these the stea: cons:mption rer horse-fower hour curves were detersined. Two steam consimntion vacuum ourves at ne loail were plotted, one being at one hundred fifteen pounls main pressure, the other ut eignty pounds ain pressure. These curves show the effect of vacuum on machines losses ani give a comrarison of machine losses for two values of initial rressure. Another iat cf curves shows the expansion line of stear. threush the turbine, the points -ictted heing the pressure observed in the various staces. Two other curves are shown on this sheet. One is a double curve, @ach stage ordinate rerresenting the ccmbined areas of - 6 ~ the nosszlern in that vatage. The seooni rerrenents the velocitias of the steam in the various stages. Theo- reticalliv the velocity shonid he a constant for eaoh atave and the: ourve a straight line parallel to the DABE. The unit taken for this curve was one large oroas-seotion from the base. RESULTS NOZZLES From govornor throttle tc first atare, one noz- 21lG. Diam. = .o67 in. Area - .060715 sq. ft. Fron firat atage to second atase, two noxzalen., Dian. = .512 in, Area - .OCOB31] a9.f%t. Prom neoondi stage to third stage, three norzles. Dias. = 2306 in. Area = ..G06507 eq.ft. From third sta7e to fourth stage, four nozzles. Diam. = 2514 din. Area = .OCQObSS #q.ft. From fourth staze to Fifth staze, #ix nozzlen. Diam. = 5065 in, Area = .COCG5C? sq.ft. Pron fifth ataze to sixth stare, siczht nozzles. Diaz. = eaia? in, Area = ~0C0548 B1.ft.. FOP UT ie r x _ A,+ Cy(t. - t) - ff for quality of stean bofore : i saturation. t- t. A+ Cr (t. - t) -fA for surerkout. oy _ Thermnodynanic efficiency _ ( Te T) —— ~ 7. Thermal effioiency = ( AW), —o— NO. l NO LOAD, EXHAUST AT ATMOSPHERE Duration of test oC min. Re P. M4. 3550 Temperature of exhaust Ternperature cf roon 76° F. Barometer reading > -9.20 in. = 14.36 lbs. Pressure on the main 80 lbs. Pressure on tie exhaust nS ® Boiler teuneruture at 6x- haust rressure 211.75 F. Moisture in the stean 5% Total steam ner hour condensed 159 lbs. Total steam ter our ocon- denseda (Drv). 158.25 lbs. Total heat surrlied rer cur 187028 B.T.U. LOAD = .49 H. P., EXHAUST AT ATMOSPHERE Duration of test 3& min. R. P. M. 3660 Temperature of exhaust 131.56°F Temperature of room 76°R Barometer reading-722352 in. = 14.38 lbs. Pressure on the rain 86.3 " Pressure on the exhaust 0 On Boiler tex.nerature at ex=- haust pressure 210.9°F Mcisture in stew: 07 Total stea: per hour condensed 173.7 lbs. Total stea:.. per hour con- dersed (Drv). 172.5 =CS 8" Total heat surrlied rer hour 203600 B.T.U. RB. H. P. 49 Total work dene in B.T.Y. ner hour 1348.2 Steuw: rer BLH.P. hour (Dry) 362 lbs. Thermodynuziio effioienoy, (T= T) - 15.67% ~~ Thermal effioienoy, (A ¥) _ 6% “oO NO. 3 LOAD 1.82 H.P., BXHAUST AT ATMOSPHERE Duraticn of test 30 min. rePN. 36C0 Tenrerature of exhaust Terrarature of roon 76°F Barometer reading = 09.52 in. - 14.39 lbs. Pressure on tie main 80 " Pressure cn the exhaust 25 " Boiler terinerature at ex haust pressure 212.51" F Moisture in the stea: — Lae Total stear: rer hour oondensed 244 lbs. Total sateam per hour condense ed (Dry). 241.1 * Total heat sur7lied rer heur A86260 B.T.U. B. H. P. 1.82 Total work done on B.T.U. per hour 4650 -~-@- Stearn per BG. EK. P. heur (dvv) 1528.5 Thermodvnamic effioienoy Thermal efficiency NO. 4 LOAD = Duration of test R. YP. Te: perature of exhaust Toinerature ox roon Baroueter reaiing = 20.68 in. Pressure on the main Pressurs on the exhaust Boiloxr temperature at ex- hanst rressure Moisture in stean Total steam per hr.condensed Total atom. ner hour con- densed Dry) Total heat sirrlied per hr. B. H. P. Total work done in B.T.U. mer hour Stem. per B.H.P. hr. (Dry) Thornodynanic efficienoy Tnermsal efficiency 4.4 H.P., EXHAUST AT lbs. 14.15% 1.6% ATMOSPHENE oO min. }5bO 76 F 14.37 Ibs. 80 lbs. 1.5 lbs. 215.3 FP 1.3% 355 lbs. 560.4 ibs. 415025 B.f.U. 4.4 11180 79.6 lbs. 13.79% 2.7% - 10 - NO LOAD, 875 VACUUM AT EXHAUST Duration of test 3Q min. Re P. XM. 3670 Temperature of exhaust 190° Temperature of room 76. Barometer reading-29.41 in. = 14.43 lbs. Pressure on the nain 80 ibs. Pressure on the exhaust= -8.76H in.= 4.29 lbs. Boiler te:irerature at ex- haust pressure. 195.88°F Moisture in the stean Dry Total steam per hr.condensed 121.5 lbs. Total steam por hour ccon- densed (Dry) 31.5)” To bind. neat sutrdied Per nr. 143005.5 B.T.U. LOAD- 2.66 H.P., 7.6 in.VACUUM AT EXHAUST Duration of test 5O min. R. P.M. 3725 Tex:perature of exhaust 193.1°F Temperature of room 78°F Barometer reading 29.29 in. 14.38 lbs. Pressure on the main 80 on Pressure on exhaust: -3,53 in.= -5,7 " Boiler temperature at ex- haust pressure 196.33 F Moisture in stean 1.3% - ll = Total stean rer hr.oondensed Total steam: per hour ocne densed (Dry) Total heat supplied ner hr. B, KR. Pe Total work done in R.T.'. rer hour Stean per B.H.P. hr. (Drv) Thernodynamic efficienoy Theriu.al efficiency NO. 7 249 lbs. 245.76 lbs. 290728B.T.U. 6745 923.74 lbs. 16.21% 2.3% LOAD = 4.91 H.P.,6 in. VACUUM AT EXHAUST Duration of test Re Pe lie Tenperatura of eAwist Tearvorature of Lock Barcuneter rea ling=29.50 ine Pressure on the sain Pressure cn the exhaust= =-6 in.: Boilsr tewrerature at ex- haust pras.ure Moisture in stea: Total steam per hr.condensed Total steam per hour con- densed (Dry) Total heat sunriied per hr. B. EK. P. Total work done in B.T.U. per hour Steam per B.H.P. hr.(Dry) aQ win. J820 196° F 74° F 14.41 ibs. 80 " -2 94 " 199.75°R 23h 563 108. $44.88 lba. 409480 5B.T.U 4.91 12495 70.26 Ibs. -~il15-<- Thermodynanioc efficiency Thermal efficiency NO. 8 LOAD = Duration of test R. P.M. Tenrerature of exhaust Tenrerature of the roon Barometer readins=29.34 in.= Presaure on the main Pressure on the exhanst= ~-4 14 in.- Boiler temperaturo at ex- haust pressure Moisture in steam To trl steam per hr.condensed Total stcan per hour cen- densed (Dry) Total heat suyprlied per hr. B. H, P. Total work done in B. T. U. rer hour Steam rer B.Y.P. Hr. (Dry) Thermodynamic efficiency Thery.u1 efliciency 15.78% 3.05% 6.63H.P., 4.14 in. VACUUM AT EXHAUST oQ nmin, 3586 198.5°F 76°F 14.38 lbs. 80 " ~2eQ0 ® 203.35°R 267% 425.6 * 502814B.T.U. 6.63 16860 63 8 lis e 147 3554 ~ 13- NO. # NO LOAD, 15.5 in. VACUUM AT EXMAUST Duraticn of test R. PP. My Texyerature cf oxhau.t Tourorature ct? room Barcnieter reading = 20.41 in. Pressure on iain Prassure on the exhaust= 15.0 in. = Boiler ter.nerature at e6x- haus! rreanure Moisture in stean Total utea.. rer hey. Condensed Total stene ter tour cone densed (Dry) Total heat suprilied per hr. NO. 10 5O min. 5580 178°F 76°F 14.43 lbs. 80 " 6.625 "* 193 .88° F Drv Olds. 106 ibs. 124700 B.T.U. LOAD= 2.65 H.P., 13.6 in. VACUUM AT EXIIAUST Duration of test R. P, My Tenrerature of exhaust Temrerature of roon Barometerreading-29.8 in = Pressure on the main Prassure on the exhaust= 13.4 in. = Boiler ternverature at @x- haust pressure Moisture in steam 30 min. 5735 178°F 78°F 14.6 lbs. 680 * -~6.575 lbs. 183°F 1.35% ~ li - Totul stec. per hr, condensed 321.5 lbs. Total state; ner hour con- densed (Dry) 218.5 * Total heat surrlied per hr. 261120 B.T.U. B. H. P. 2.65 Total work done in E.T.U. per nour 6745 Stean por BLH.P.nx. (Drv) 79.5 lou. Thermodvnar.ic efficienay 17.9% Thetnal atficiency 4 7t NO. 1d LOAD = 4.82 H.P., 12 in.VACUUM AT FXHAUST Dusation of test Oo bdne Re. Pe. ine o797 Tex.pérature oi exhaust 18U.6° F Teterature cs Yoon 78° RP Baroneter readine=60.26 ine= 14.36 lbs. Pressure on the iain 80 n Prassure cr the exhaust= ele in.= Oe " Boiler tenrerature at exhaust PYVEHalre 155.46 F Moisture in stew. Bo 5% Total steam por hr.condensed 380.0 lbs. Tota. steal per hour con- densed (Dry) 322 Ibs. Total heat survlied rer hr. 382437 B.T.U. B. H. Po 4.82 Total work done in B.T.U. . per hour 12265 -~15~< Stearn Yar Bb Hee here cprv) 00 e820 Lbs. Thermodvnanic efficienoy 17.69% Thernal exrticiency Bm NO LOAD, ust ine VACUUM AT EXHAUST Duration of test 50 min. Re P.M. 0814 Temcverature ot exhaust 178° F Temperature of room 76° ¥ Barometer reading=-29.64 in.= 14.564 lbs. Pressuze on main #&Q # Pressuye cn exhaust= -L6.2 itex -%.99 ] Boiling temperature at exhaust pressure 196.94 F Moisture in steam Dry Total stean rer hr.condensed 82 lbs. Total steam rer hour cen- densed per hour (Dry) 83 Total steam snuuvrlied rer hour 96500 B, T. U. NO. 13 LOAD = 2.098 H.”., 16.9 lbs. VACUUH! AT EXHAUST Duration of test SO min. R. PP. H. 5750 Teunerature cf exhaust 167.7°F Texrerature of room 73°F Baroneter reuiing=89.27 in.= 14.87 lbs. Pressure on main 30 ® Pressure at exhaust= -16.9 in.= -~8.a9 lbs. ~ 16 - Boilins teurerature at 6x- haust rregz sire Moastuxve An 33 bein Total satea. per hr. condensed Total stean rer hour gone densed (Drv) Total heat aurvlied rer hr, Be He. Pe. Total work done in 3.T.U. vor heur Stem. yornh., F. P. hr.(Dry) Thermodvnaiic effiloaiency Tiemnl etficienoy NO. 14 170.6&° F C.6% [04.2 lbs. 241532°B.7T.U. 2.68 0614 79 051 los ° 19.48 F ‘ cut 0 e mo, ’ LOAD = 6.98 H.P., 6.2 in. VACUUM AT EXHAUST Duraticn of test ke P.M. Ternwerature col cxeniuist Tarhirserature of Feo Baroneter rouding=89.34 in.= Pressure o:: the main Pressure on the exhaust: -~-6.° in.= Bolilin~ t Ferseraturs at FEs- hairs t | rressure Moioture in steam Totul stew. por nr.ccondsnsed Total stea. wey hour con- densed (Drv) Total heat surrlied per hr. oG Liin. 3767 19.3° F 70°F 14.76 lbs. 80 " 4565 libs. 413.5 lbs. 487000 B.T.U. ~ 17 - me He P, Total vork done in B.T.U. per eur Stemampoer B.H.P. hr. (Drv) Thermodynamic efficienoy Themi.al efTicisnecv NO.15 FIGH PRPSSTR, NO LOAD, EXHAUST Triration of teat R. P. ii. Temnveratirs of exhaust Teirarature coc” roon Rarcmeater rewiing=36.39 ine Prasesnce on ‘he sain Pressure en the exnanit Poiler ters erature ef ex- haust pressure Moisture in tear Total steam per hr. condensed Tetal stems ner hour con- densed (Drv) Total heat suvclied vex hr. NO. 1G NO LOAD, 8.6 in. VACUUM AT Duration of teat R, Pp. Mt Tenverature of exhaust Tenperature of roon Barometer reading= 2°.38 in.~ 6.°8 17740 68 lbs. 14.5% 3 667% AT ATMOSPHERE oO win, 3720 210° F 79° P, 14,47 Lbs. llb libs. e r) " lie 75° F eos i74 lbs. 173 * ~O61L00 B,T.U. MXAAN ST 50 min. 3577b 196.2a°F 78° F 14.42 libs. Prosnaure on the rain Pressnu°e on the exhaust = ~8.5 in,.: Boiler tenverature at ex- hairiest Moisture in steam: Total stew. per Ar.contienand Total steam per hour can- densod (Dry) Total heat gintliedi per hr. NO. 17 225 dbs. -4.17 lbs. 194.58" F eae 154 lbs. 135.6 ibs. 1658784 B.T.U. NO LOAD, 19.57 ine VACUUX Duration ot tent ke P.M. Te.verature o7 exnaut Tenrerature o° rock Barometer Yrowiings3).obine Pressure on the main Pressure at exhaust= @19 57 in e= Boiling temperature at ex- haust pressu2e Moisture in steac Total steam rer nour con- densed Total stew: per hour con densod (Drv) Total heat surrtrlic: yar hr, oU min, 5967 153.4° F 73° P 14.46 lbs, 115 lbs. ~Q 6 ibs e 160.67°F 1.57% 85 libs. 84.5 lbs. 93692 B.T.0. WH 19 = NO. 143 LOAD = 4.82 H.P., 10 in. VACUUM AT FXHAUST Duration of test 30 min, Ro.P. OM, 20065 Ter:;evature of exhaust 186 i F Terverature of room 70° F Raroneter readinz=29.52 in. 14.39 lhs. Pressure on the main 415 lbs. Pressure at exhat.t-= “10 ine: ~4.91 lbs. Boiling ter.rerature at exhaust | PLEsHuxrg 190.69°F Moisture in stewi 1.27 Total atean, ver hr, condansel 236 lps. Total stew. par hour con- deneed (Drv) 333 1bs. Total heat suyrlied per hr. 39956563 B.T.U. Be H. Pe 4.52 Total work done in B. T. JJ. ber hour VLDOS Steai per =,H.P. he. (Drv) 73.59 lbs. Themmodynanic efficiency 19.35% Therrnal efficienov 2.918, NO. 19 LOAT = 4.75 H.®., 5 in. VACUUM AT REXHAUS Duration of teat 50 min. R. P.M. 3700 Temperature of exhaust 197°F Tenperature of room 79°F Barometer reading=29.51 in.= 14.57 Ibs. - 0 = Pressure on the iain Pressure on the exhaust =) -5 ine at exncust Boiler tenceraturs pressure Moisture in stew Total stear. per nr.conidensed Total satearn por hour con- densead (Drv) Total heat muro lie. rer lr. BR. rr P. Total work dons an fh. T. U, per hr. Steam per B.H.P. hr. (Drv) Thermodynar.ic efficiency Therr.nl efficiensy NO. 20 LOAD = 4.82 %.P., EXMAUST Duration of test R, P M. Tex: erature of exhaust anyerature of roor Buroneter reading=-29.51 in.= Pressure on the 3.ada Pressure on the exhaust Boiling temrerature at ex- hast Moisture in steam Total satean ner hr.condensed 115 lbs. eUlL.68°F act 595.5 lbs. 04e3 Lhe 466600 B.T.U. 4£07b 13080 81 lbs. 174, o4es i? AT ATHOS ORES HO min. 376Q 3C8°FR 79° F 14.57 lbs. 116 " 000 Ai:.85 F be i 411.56 lbs. Total ataan ver hour ocn- oensed (Dry) 402.5 iba. Total heat suc liedi ner hr. 481062 B.T.U. k. H. P. 4.82 Total worr done in b. Tt. ti. ner hour 1°50 8 Btean rer FR. PF. P. Hr. (Drv) 83.5 lbs. Theriodynamio efficiency 16.8% Thexm..l efficiency ks NO. 2&2 LOAD = 6.9 H.?., BAHAUST AT ATMOSPHERE Durition cf test 30 min. R. P.M. 29750 Temrerature of exhaust 207 .5°R Te:rnerature of room 77° Barometer reading=29.43 in.= 14,44 lhe. Prersure on the main Ali " Pressure on the exhaust eh * Beller tenporatnra at exhaust Pressures O15.423°F Moisture in stew. 0%) Total sté6m. rer hr.oeniensed 470 lbs. Total stea: yer hour cen- densed (Dry) 4n5 9" Total heat supplied rer hr. 562994 B.T.U. I3. tH. P. | 6.9 Total work done in 2.T.U. per heur Ll wine Ster. por B.H.P. hr. (Dry) 68.58 lbs. LOAD= 6.79 Thernolynamnio ex cicienoy Therwal efLioiency NO .28 Diratlian oc test n¢ P, see vv die Tomrerature ot eshte t Torcerature oo. room Baroneter rounding 03.45 an. PreBAUrG On tre main Pressure on the exhaust - ~§.5 in. = Boller temreraturo it haust pPrewsule 6xA- a . Ld A my » - . vege sAC de wld. ty an he wv Oa 4 Tytad stew. veer hy, oondensed Total ateam rar Leur cen- densed (Dry) Totai heat suypvlied ~er hr. B. He P. Tatal work doné in B.T.U. per Bteu. rer BHP. hr. (Dry) Thermodvnanic ef *iciency Thermal efficiesnov 5 (4 10 ob2e, Z 18% W.P., Seb in sVACUUM AT EXHAUE 14.44 bs. 113 " = ee " 15..3.79"°F 448.25 lbs. HobO56 F.T.U. ve 7S) nr. L7873 G6e05 2, G4E De a0 Bee RS PE et etka UEP ele Spr Aon 7 es ~ Fore e | Area ee | Feed FE Fressures wa Speed 1 | a +e ra n = flata. eA ns, i de Bd Pi a Pa ek) a ) R : eae Eden ot ee malta. aiaw 270|/33 | 43 2 os et UE Je an rs ere 267|\/3/ | 435— pee er Ya 0 gm Per eee ee vs8a 0 | 4 wre o lo or Pe Se a0 ome ESAT re ea ag ope 27/ Q ~ Ra oe Ln t 2 265] /2 ane : Pn aed eT yom 270 | /29| #3 ia r Z ie : : LESS ‘88 a er aoe ea fo) 2° | 3700 27/1 | (30 | 44 Mc = ois jigo |80 727 | /25| 7 | 3 | 13 Yr bre its erg 3 220 | /295) 4 oP : 2 Ae | _ Becks, ft 43 |86 |27 | 12 3 ee O | 3660 | 36 | 266) 73). ee Coe eee / feo LY Aa ; - Nos “d aay 256|/4+0 | 5G * A / yx} 5.6 ro Em PET E-Ten) yer are areas ~ a hin Pee ele eek rarer Ae tca ee Ce ee Teo ne eae rae) ee eee 4 t ? Hee BA Tey FSH Toe oe ee Co S|/3 | § | 3600) 3.0 |250 | /43 | 5.6 NE Ser Peal rg ee Ceara baer a ig ye Wel ad roe i rf 3600) 3.7| 265 | /4/ ; eee (3 16468134 (£21 4 ; re ae NS xt rr 40,80 ye) ! | &S P Pa ane ea vs r or 8S igus) 2:40 80 ee eles CSE TT SF * [RR owinlao [3-261 a: ; ean o 4 Le Oe Dod Se TEE OY 3 |/25| 3550 | + 2/ |/3.5| @.2.|2:3 | /25) 3 a cP ET od s\35r0|4 |258 | 144 |818 ee fF Para ac ae aera eee eee eae ae ge ag et Ca a bE 1 J Pree mee ae TT. Peco acacle 6| 125) 3550 | 4 | 254 | /45 |B.18 Be = fe Ry 0m 1. ao ee ee - o| 4 |250| /47 8/38 ree ea ee at iy 3 ie J5IO| + | 252) /#8 |8/8)/77 eee en 33 122) A16| 62 ’ } Parr ont i ia pene ree ee ee eae Ri re] 4ere. No / ene etree ; 12. | +3'| 25) 3750 | 5: a 249 80 |22|/0| 6 : re eo 34 Pie mere . aaa ha can aot GPa a Par recut Cae y ae a NS Bey ole) 80 yr © 2 ‘ mpage aA Pe EES) fo) ev por RR Lee) ee E a tae kK 3: Pe ee Re oe a ae 35/0 |B0 |22, | /o | & Pa eee ee aCe? tae) . Loe Ri nd ELS Ee S| 3550 |34| 268|727| o |75 a " (a1@ 12 tha 43) 2 1 JO win 8o 422. f NOG 8.75" Vacuum z. |Calorsme ter C7 ee te a7 ye HES: Soe re —s veto enw — fo | + "| 272 | ", re od Neate 43° a” and 06000000 : ] a if (CTs ry | 26 Pe oe mE aT 36"| z ia ie are G Fressvyrets ema he ei rz ” r a. ; ar Coen iat) h (ied ae tt tt ~ ae § ‘ a sn a : 3 re as * A 10 Kaira 3-5" -| owe Fee, a | rn AEP) Nort 7 ee "ot : 38 a Pe Fae ry . eo ———_ a « 2 ak rrad Fs zy Jas Ces rl a San cme an xe ae a ee 69 |/244 Var Tem p-=74° Baromerr =27.36" Brake Conslanf=4* 8S - ree roe Ce ry ee Fe Fe Fz are LX, Fe Sd en] ——— Poo wu Temp = 76° Bavometer = 2930 Brake Coustauls4* Bee) 2 E> ree eed vee) Ore wie RI + ~~ s+ + OF Cee 0s ee re | 40,9 | 2/77 a ee = I) Ve er Se on ae a aT yerugn Main ae : aE? 4a, Jana Nay, | Temp. es pe Sh Pe ree ee ee eeu toe pee ila pec ay eres he - a ee RC eee SIR ae die =e ed 2 egw a o ” Ey cy 4 ie A Pe i ee =e Bae A De ee ed SO a ane Ci Mita BA de ol 2 bt Cat de re, a a ed re A eS ee cd Cd ae eo Peg RL i ee ee o | cr saad