1. EDGE!w nun-zsu 6 I 21 Ponvrnun 2. INTRODUCTION I CONTEXT 3. I SPENT A LARGE PART OF MY CHILDHOOD IN DALV CITY CALIFORNIAA SUBURE PERPETUALLV ENVELOPEO IN A TMICK.DRINKABLE FOG TNE HOUSES THERE ARE PECULIAR.STARK AND BLOCKV EACH ONE IS PAlNT'DlPPED IN SOME ABSUHDLV VIBRANT COLOR.BUT DULLEO AND BLEACNED OVEN TIME TO A SOFT PASTEL BY THE CONSTANT MOISTURE THE HOMES HERE SURVIVE THE FOG THEY RESIST IT.THEY KEEP THE WATER OUT AND TNE INTERIORS DRV TNEY ARE ARCNITECTURES OF STUBBDRNNESSTHEY LOOK LIKE THISan 7 W E_ __ W J r, . ALL my mm;can :n CA 4. Ann mg 5. nus:nsnpuINSTEAD OF ARCHITECTURALLV WITHSTANDING AND EVADINE FOG,I'M INTERESTED IN FINDING WAVS TO USE AND CAPTURE ITWITH THESE EXPERIMENTS.I WANTED TO DEVELOP A IIETTER UNDERSTANDING OF CONDENSATION A PNENOMENCIN THAT OECURS EVERY DAY,REGULARLV,AND CONSISTENTLV.HOW DOES THIS PROCESS WORK?HOW DOES WATER BEHAVE AT THE SCALE OF ITS INITIAL DROPLETS) AND CAN WE IMPACT SHAPE.AND EXERCISE CONTROL OVER THIS PROCESS TO EXTRACT CERTAIN BEHAVIORS? 6. sxnemmsm #1CONDENSATION 7. e>r|Him.II,.I mu_van mt:T [I u r : w. .m: :. mg .0,II"rIInE 53 Lw1wu. v,m''n. [ mp rm 2--r: ,m: s . . ;y'H. . . >I. ~ I4IN IT I-r_H '~ I nmcv r-r r.w I U I '1 my 8. CONCLUSIONI .CONDENSATION CREATES FIELDS OF MICRO DROPLETS THAT MERGE TOGETHER AS THEY MAKE CONTACT THE GROWTH PATTERN IS CELLULARLY GEOMETRIC.BUT SEEMINGLY ERRATIC2. IT TAKES IME FOR CONDENSATION TO PRODUCE WATER DROPLETS LARGE ENOUTGH TO FALL.INTO A COLLECTION SYSTEM. 9. .'-, . .~ ..-. EX3ERIMET #2avaoenc /HYDRnD>'-NJ n: uv ; METHOD:2: r L-JIIDEHSAIILIN rum. -m.we I my . :a;, Hm-uImN row ,m -= _ wuw . . I.I--IL I'I nu.I.EWWET [~4VI: w7(| K>, EIr, ]M Mm II A Hm. H'I V.m m--4 " I III. Ax , vmv Hm : Iw mu 1- Iv zmr.I I .. W rm. -.: : 'u[ y.rm III__# . ".1=T .. n . I fF3IE: -IHH T>um. FP Am.w M14. H:mw, 11. CONCLUSIONHYOROPHOBIC SURFACES ALLOW WATER DRDPLETS TD MAINTAIN A SPHERICAL FORM.MINIMIZING THE WATERAS CONTACT SURFACE AREA.THIS CAUSES WATER TO SLIP OFF OF THE SURFACE OUICKLY.THIS INCREASE IN SPEED HAS TWO USEFUL CONSEQUENCES FOR MAXIMIZING WATER COLLECTIDNIRAPID SHEDDING OF WATER ON A SURFACE FREES UP AREA FOR MORE CONDENSATION TO OCCUR.EFFECTIVELY INCREASES THE CYCLE OF CONDENSATIDN. DECREASING THE INTERACTION BETWEEN WATER AND ITS SURFACE REDUCES THE AMOUNT OF TIME WATER IS EXPOSED TO THE SUN.LESS EVAPORATION OCCURS. 12. EX PERIMENT #3 MELTING 13. EXPERIMENT #3. MELIINGOBJECTIVEOBSERVE THE BEHAVIOR OF TEE MELTIIIO ON A SLIPER'HYDF(DPHDBII:SURFACE Vs A HYDROPNILIC SURFACEMETHODI RECORD T| ME'LAPSE OF AN ICE CUBE PLACED ON A SURFACE UNDER THE HEAT OF A DESK LAMP ONE ICE CUBE I5 PIACED ON A CERAMIC HYDROPHILII1 SURFACE mi OTHER I5 RLACEO ON A SUPER'HYDROPHDBICALLY TREATED WOODEN SURFACEOBSERVATIONSvssv T UIITREATED.HYDRDPHILIC SURFACE4 MINUTES FOR THE CUBE TO MELT COMPLETELY NOTE IIIAI THE CUBE IJIIICKLY DEFORMB AND LDSES I15 INITIAL GEOMETRY THE WATER EXPANDS OUTWARD IN A RADIAL CREE?AS THE CUBE MELTEO.THE POOL OF WATER REMAINED AS ONE CONTINUOUS SURFACE.SPREADING LATERALLY RESULTING IN A TIIIN LAYER OF WATERTEST 2 maven.SIWERNYORDPI4OB| C suuncsI1 TOOK OVER 25 MINUTES FOR THE CUBE TD MELT COMPLETELY NOTE THAT THE cuss uenmms mcnsanau smwu As we suPnuvDnoPMoan:PwawEwnEs as we SURFACE PREVENT THE WATER FROM EXPANDING OUTWARDS.OVER TIME THE WATER 5 sunncs rsusmu as INCAPABLE ar MAINTAINING ms cuas's mum sun:AND mt LIOUID BEGINS TO DESCENO DOWN THE SURFACES SLOPE.WHAT IS INTERESTING IS THAT THE WATER MOVES LINEARLY AND COHESIVELY TOWARDS THE SURFACE EDGEI amsv:mm MAY as mweuma HERE us um nEcAusE ms wuss:usanus CONTAINED.av ms suvsmtvuluwnoavc sunncs.us MELTING um:IS smmru: Aun. v mwsn aecwse LESS or me ouovm us anus exnosen toTHE AIR IN OTHER WORDS.THE COOLER WATER I5 ABLE TO MAINTAIN ITS LOWER TEMPERATURE FOR A LONGER PERIOD OF TIME THE ICE IS CDNSEOUEITTLV INSULATING ITIELF 14. VCONCLUSIONI .HVDROPHOBIC SURFACES CAN AFFECT MELT RATE 2. WHEN CONTAINED BY A HYDROPHOBIC SURFACE.WATER DROPLETS CAN MAINTAIN THEIR TEMPERATURE FOR LONGER ' REDUCING RATE OF EVAPORATION. RANDOM nuesnous B.mousmsCAN SUPERHVDROPHOBIE PROPERTIES BE APPLIED T0 WATER'TRANSPORTATION INFRASTRUCTURES (LIKE THE AOUEDUCTS IN CALIFORNIA? ) WHERE ARE THE CRITICAL MOMENTS IN THESE TYPES OF SYSTEMS WHERE WATER IS LOST TO EVAPORATION?CAN WE SPEED.THE PASSAGE OF WATER AND REDUCE LOSSES? 15. rrrrr rrrrr Frrrf7 F.I_ IF Irrrrfexpemmem #4 DESIGNING DROPLETSArxnmrw rrr'f Arxmnn / W/'f'V" rsmrwrxrw'1'1'1,''["Y'l'l'1 "'I'1"1'1'| '1 1'! '1"! "'. "1"'I. 1' ! "!'! '1'l'1"1"'lT1 "I"1"""1"l'1'! ". "I '1"1"1"'I11"1"'I1'1 "l"1'l'1'1."l"'""I '1"'! "l'! '|'1'1"1"' "1"'I'l'l'l'"l"'"1 "I'! '1'V"! "11'1"l' W"% -ss--'''' -ss-Iw "vs-N"o" '''''-- "'' -'-v''' N''''' sI"N '""""''' 16. ves:Iexvemmeur #4: nesnsnms OROPLETSOBJECTIVEDESIGN A NVOROPHOBIOTIIAT CONTROLS THE DISTRIBUTION.DHIEOTIOIALITT.AIIO GEOIKTRV OF IIIBIVIOOAL .'METHOD ' I cnwen spunrneassvnl._ w1nLzInnNe1iiuv: e'r I. I ,7 EVEIIL1 sues mass or mmuvunaxcm.nae HQ:MELT AI ICE OUIE ATO7 THIS SURFACE AND CHANNEL TNE It GEOMETRICAL BOUNDARIES AND IIIAVES. was we ICE was vmusmowlus rnnu soun TO Llaum' SPACED 001 ram.I ExmAc1En A 15 secouu ExcIiFT ' v LIEMI A SPECIFIC MaMiN1 wuens nu:mum RAPIOLV eupgsss noea voume me WATER FALLING are me SURFACE) T? T5 LAID ACROSS THE SURFACE NOTE THAT THE WATER OlOP'1.fY S RIES FOLLOW THE RAOII OF THE MYOROPHDOIC IONES.Y res 2_ ms mule mums ms nnmm vuceo wmun we a snows me ICE cuss nzmsrnoumn mom suuu TD LIOUIO 'E: ,', ,,: E', :,[: ",, ,["lfnjrffa I32" svAceu nu!cm.I mnucren A 15 secoun ex REIAVIVELV : .mm. .m mm'=mr. m.nsm A srecueuc MOMENT wuene me mum nAnm. v'- A LAREEII / mum:or wArEn mums are me snafu: we wAven's some new mmALLv cum: -wen av me pea . w ours um Acnoss me sunnce.Ame mu me wneu an - names roLLow me man nr ms nvnnuvnnmc tomAS 4 rucen was amen an we sunncr I wAs ABLE u:rweue um:VAEIAYIIIIU or raw uumx-1: uwnrms ADJACEM w on Auawen we-, m sumo nun an-euven ways we I nueo we gonna";mu mmmuveo we man:I rus ALEE AILE vu mmkss we movement or me uwmns cnummeu wnm we snows;sevweew we ownnnr-mm:memes uuewssvmrm A usmnev Am:man vznorwv vnweu-Ir.Acnnss ms suoncs omuw mcwmeumu naeu Awzv LEAUME aemun awn (nu; s~sAm- nnnnevs LQNVAIIAED Al was mleusmmu-=eerweeu we ennun>4uaI( zcuwzs 17. CONCLUSIONTHIS EXPERIMENT EXHIBITEO THAT IT IS POSSIBLE TO MANIPULATE WATERIS GEOMETRIC PROPERTIES AND BEHAVIORS WITH SUPERHVDROPHDBIC SURFACES.WHILE MT GRID MATRICES HAD LIMITED EFFECT.I BELIEVE THAT ADJUSTMENTS TO SCALE AND OTHER VARIABLES COULD GENERATE MORE CONSEQUENTIAL IMPACTS 18. REFLECTIONMY EXPERIMENTS THUS FAR HAVE TAUGHT ME OUITE A BIT ABOUT WATERIS BEHAVIOR AT SCALE OF THE INDIVIDUAL DROP.I'VE LEARNED THAT SUPERHVDROPHOBIC SURFACES CAN CONTROL MELT RATE OF ICE.DIRECT AND CHANNEL WATERIS FLOWS.AND DISSIPATE /GROUP WATER,I'M UNSURE OF WHAT PRACTICAL APPLICATIONS COULD BE MADE WITH THE THE PHENDMENDN I HAVE DOCUMENTED.BUT I'VE LEARNED THE VALUE OF DESIGNING AND OBSERVING AT MUCH FINER SCALES THAN BUILDINGS. I'M REALIZING THAT INTERVENTIONS AT THE SCALE OF THE ENTIRE BUILDINGIS FORM MAY OR MAY NOT BE NECESSARY FOR OR THE MOST EFFECTIVE MEANS OF COLLECTING CONDENSATION.RATHER.DESIGNING AT THE LEVEL OF A SURFACEIS TEXTURE IN ITSELF MAY PROVE TO BE A MORE POTENT AREA FOR FOCUS. 19. new man muansmlrv-w. IaIu : |l? ?4?$92 no 8!21