?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KAJIAN+SIFAT+TERMAL+MATERIAL+FASA+BERUBAH%0D%0AUNTUK+APLIKASI+RUANGAN+SEJUK&rft.creator=TRI+MAY+FRANSISCO%2C+1415021087&rft.subject=600+Teknologi+(ilmu+terapan)&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Dalam+usaha+memperoleh+kenyamanan+termal%2C+banyak+individu+yang+menggunakan+Air+%0D%0AConditioner+(AC)+untuk+pengkondisian+ruangan.+Penggunaan+AC+perlu+mendapat+perhatian+khusus+%0D%0Akarena+biaya+operasional+listrik+yang+cukup+besar%2C+AC+yang+mengandung+klor+(chlor)+seperti+freon+%0D%0Aatau+CFC+(chlor+flour+carbon)+berpotensi+pemanasan+global.+Phase+Change+Materials+(PCM)+%0D%0Amerupakan+bahan+yang+dapat+ditempatkan+pada+partisi+bangunan%2C+yang+dapat+membantu+%0D%0Apengkondisian+udara+pada+bangunan.+Pemilihan+jenis+PCM+dengan+menggunakan+parafin+dan+%0D%0Aminyak+kelapa+merupakan+salah+satu+bahan+penyimpan+panas+laten+yang+dapat+diaplikasikan+%0D%0Asebagai+penyimpan+panas.%0D%0APCM+minyak+kelapa+temperatur+perubahan+fasa+sudah+pada+temperatur+kenyamanan%0D%0A23%CB%9AC%2C+sedangkan+PCM+parafin+temperatur+perubahan+fasanya+tidak+pada+temperatur+kenyamanan.+%0D%0AJadi+PCM+parafin+harus+dibuat+dari+pencampuran+parafin+jenis+padat+dan+cair+yang+diperoleh+%0D%0Akomposisi+parafin+padat+4%25+dan+cair+96%25.+Komposisi+PCM+parafin+didapat+dari+uji+T-history+yang+%0D%0Amenghasilkan+sifat+termofisiknya.+Lalu+uji+GCMS+dilakukan+untuk+mengetahui+jumlah+dan+jenis+%0D%0Asenyawa+apa+saja+yang+terdapat+pada+PCM+parafin.+Kemudian+PCM+minyak+kelapa+dan+parafin%0D%0Adialiri+udara+bertemperatur+20+%CB%9AC+dan+berkecepatan+1%2C6+m%2Fs%2C+2%2C4+m%2Fs%2C+dan+3%2C2+m%2Fs+diatas+permukaan+%0D%0Alapisan+kontak+aluminium+dan+plastik+sebagai+pembanding+waktu+yang+dibutuhkan+untuk+PCM+%0D%0Aberubah+fasa%0D%0AHasil+dari+penelitian+ini+didapatkan+perubahan+fasa+proses+pendinginan+dengan+variasi+%0D%0Alapisan+aluminium+pada+PCM+parafin+campuran+terbesar+yaitu+23%2C33x10-2+%CB%9AC%2Fmin+dengan+%0D%0Akecepatan+3%2C2+m%2Fs%2C+dan+lapisan+plastik+laju+pendinginan+terbesar+adalah+20x10-2+%CB%9AC%2Fmin+dengan+%0D%0Avariasi+kecepatan+3%2C2+m%2Fs.+Sedangkan+laju+pendinginan+minyak+kelapa+terbesar+dari+lapisan+%0D%0Aaluminium+adalah+10%2C14x10-2+%CB%9AC%2Fmin+dengan+variasi+kecepatan+udara+3%2C2+m%2Fs%2C+kemudian+lapisan+%0D%0Aplastik+laju+pendinginan+terbesar+adalah+9%2C45x10-2+%CB%9AC%2Fmin+dengan+variasi+kecepatan+udara+3%2C2+m%2Fs.%0D%0AKataKunci%3A+%3A+Pemanasan+Global%2C+PCM%2C+Parafin%2C+Minyak+Kelapa%2C+Pengkondisian+Udara%0D%0AIn+effort+obtain+thermal+comfort%2C+many+individuals+which+use+Air+Conditioner+for+room+%0D%0Aconditioning.+The+use+of+air+conditioning+need+special+attention+because+the+electricity+operational+%0D%0Acosts+are+quite+large.+Air+Conditioner+which+contains+containing+chlor+such+as+freon+or+CFC+(chlor+%0D%0Aflour+carbon)+has+the+potential+to+global+warming.+Phase+Change+Materials+(PCM)+are+materials+%0D%0Athat+can+be+placed+on+building+partitions%2C+which+can+control+air+conditioning+in+buildings.+The+%0D%0Aselection+of+PCM+types+using+paraffin+and+coconut+oil+is+an+example+of+a+latent+heat+storage+%0D%0Amaterial+that+can+be+applied+as+a+heat+storage.%0D%0AThe+coconut+oil+PCM+temperature+change+phase+is+at+a+comfort+temperature+of+23%CB%9AC%2C+%0D%0Awhereas+the+paraffin+PCM+temperature+change+phase+is+not+at+the+comfort+temperature.+So+paraffin+%0D%0APCM+must+be+made+from+mixing+solid+and+liquid+paraffins+obtained+by+4%25+solid+and+96%25+liquid+%0D%0Aparaffin+compositions.+The+paraffin+PCM+composition+was+obtained+from+the+T-history+test+which+%0D%0Aproduced+its+thermophysical+properties.+Then+the+GCMS+test+is+performed+to+determine+the+amount+%0D%0Aand+type+of+compounds+found+in+paraffin+PCM.+Then+the+coconut+oil+and+paraffin+PCM+were+given+%0D%0Aair+temperature+of+20%CB%9AC+and+a+speed+of+1.6+m%2Fs%2C+2.4+m%2Fs%2C+and+3.2+m%2Fs+above+the+surface+of+the+%0D%0Aaluminum+and+plastic+contact+layer+as+a+comparison+time+used+for+PCM+changed+phase.%0D%0AThe+results+of+this+experiment+showed+that+the+phase+change+of+the+cooling+process+with+%0D%0Athe+variation+of+the+aluminum+layer+on+the+PCM+paraffin+mixture+was+the+largest%2C+23.33x10-2+%0D%0A%CB%9AC%2Fmin+with+air+velocity+of+3.2+m%2Fs%2C+and+the+largest+plastic+layer+cooling+rate+is+20x10-2+%CB%9AC%2Fmin+%0D%0Awith+variations+in+air+velocity+of+3.2+m%2Fs.+Then+the+biggest+cooling+rate+of+coconut+oil+from+the+%0D%0Aaluminum+layer+is+10.14x10-2+%CB%9AC%2Fmin+with+variations+in+air+velocity+of+3.2+m%2Fs%2C+then+the+largest+%0D%0Aplastic+coating+cooling+rate+is+9.45x10-2+%CB%9AC%2Fmin+with+variations+in+air+velocity+3.2+m%2Fs.%0D%0AKey+Words%3A%3A+Global+Warming%2C+PCM%2C+Paraffin%2C+Adsorbent%2C+Coconut+Oil%2C+Air+Conditioning.%0D%0A&rft.publisher=FAKULTAS+TEKNIK&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58828%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58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