?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=KAJIAN+EKSPERIMENTAL+PERPINDAHAN+KALOR+PROSES%0D%0APEMBEKUAN+PCM+PARAFIN+PADA+SHELL+AND+TUBE+HEAT%0D%0AEXCHANGER+DENGAN+POSISI+HORIZONTAL&rft.creator=ARAHMAN%2C+SAPUTRA&rft.subject=600+Teknologi+(ilmu+terapan)&rft.subject=620+Ilmu+teknik+dan+ilmu+yang+berkaitan&rft.description=Pemanas+air+tenaga+surya+(solar+water+heater)+merupakan+sumber+energi+yang%0D%0Adapat+dimanfaatkan+sebagai+sumber+pemanas+air+dengan+mengubahnya+menjadi%0D%0Aenergi+termal.+Salah+satu+media+penyimpanan+energi+termal+adalah+phase+change%0D%0Amaterial+(PCM)+dimana+dapat+mengalami+proses+reversible+dari+proses+peleburan%0D%0A(melting)+maupun+pembekuan+(solidifikasi)+sehingga+dapat+dimanfaatkan+untuk%0D%0Amempertahankan+suhu+konstan+selama+periode+waktu+tertentu.+Energi+kalor+ini%0D%0Adiserap+dan+dilepaskan+menggunakan+alat+penukar+kalor+berjenis+Shell+and+Tube%0D%0AHeat+Exchanger.+Penelitian+ini+dilakukan+dengan+memvariasikan+sistem+aliran%0D%0Aterbuka+dan+tertutup+dan+juga+debit+aliran+airnya.+Penelitian+ini+bertujuan+untuk%0D%0Amengetahui+karakteristrik+perpindahan+panas+dan+waktu+yang+dibutuhkan+parafin%0D%0Asehingga+mengalami+perubahan+fasa.+Parameter+yang+diukur+adalah+temperatur%0D%0Amasuk+dan+keluar+alat+penukar+kalor%2C+temperatur+parafin%2C+dan+waktu+pembekuan%0D%0Aparafin.+Hasil+dari+penelitian+menunjukkan+bahwa+semakin+besar+variasi+debit%0D%0Aaliran+air%2C+maka+laju+perpindahan+panas+akan+semakin+besar+yang+memungkinkan%0D%0Aparafin+mencapai+titik+beku+lebih+cepat.+Waktu+pembekuan+parafin+dari+suhu+awal%0D%0A60%C2%B0C+hingga+melewati+titik+beku+40%C2%B0C+tercatat+proses+pembekuan+tercepat+pada%0D%0Avariasi+aliran+terbuka+dengan+debit+aliran+6+l%2Fmin%2C+dalam+waktu+11+menit+40+detik.%0D%0ADengan+demikian%2C+alat+ini+terbukti+mampu+mencapai+perubahan+suhu+dengan%0D%0Aefektif%2C+tergantung+pada+variasi+sistem+aliran+dan+debit+aliran+air+yang+digunakan.%0D%0A%0D%0AKata+Kunci%3A+Pemanas+air%2C+PCM%2C+Parafin%2C+Perpindahan+Panas%0D%0A%0D%0ASolar+water+heater+is+an+energy+source+that+can+be+utilized+as+a+source+of+water%0D%0Aheating+by+converting+it+into+thermal+energy.+One+of+the+thermal+energy+storage%0D%0Amedia+is+phase+change+material+(PCM)+which+can+undergo+a+reversible+process+of%0D%0Amelting+and+solidification+so+that+it+can+be+utilized+to+maintain+a+constant%0D%0Atemperature+over+a+period+of+time.+This+heat+energy+is+absorbed+and+released%0D%0Ausing+a+Shell+and+Tube+Heat+Exchanger.+This+research+was+conducted+by+varying%0D%0Athe+open+and+closed+flow+systems+and+also+the+water+flow+rate.+This+study+aims+to%0D%0Adetermine+the+heat+transfer+characteristics+and+the+time+required+for+paraffin+to%0D%0Aundergo+phase+changes.+The+parameters+measured+were+the+inlet+and+outlet%0D%0Atemperatures+of+the+heat+exchanger%2C+paraffin+temperature%2C+and+paraffin+freezing%0D%0Atime.+The+results+of+the+study+show+that+the+greater+the+variation+in+water+flow%0D%0Adischarge%2C+the+greater+the+heat+transfer+rate+which+allows+the+paraffin+to+reach%0D%0Afreezing+point+faster.+The+paraffin+freezing+time+from+the+initial+temperature+of%0D%0A60%C2%B0C+to+the+freezing+point+of+40%C2%B0C+was+recorded+as+the+fastest+freezing+process+in%0D%0Athe+open+flow+variation+with+a+flow+rate+of+6+l%2Fmin%2C+in+11+minutes+40+seconds.%0D%0AThus%2C+the+device+proved+to+be+able+to+achieve+temperature+changes+effectively%2C%0D%0Adepending+on+the+variation+of+the+flow+system+and+the+water+flow+rate+used.%0D%0A%0D%0AKeywords%3A+Water+heater%2C+PCM%2C+Paraffin%2C+Heat+Transfer&rft.publisher=FAKULTAS+TEKNIK&rft.date=2024-07-05&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82296%2F1%2FAbstrak_Arahman%2520Saputra%2520-%2520Arahman%2520Saputra.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82296%2F2%2FSkripsi_Arahman%2520Saputra_Tanpa%2520Lampiran%2520-%2520Arahman%2520Saputra.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F82296%2F3%2FSkripsi_Arahman%2520Saputra_Tanpa%2520Pembahasan%2520-%2520Arahman%2520Saputra.pdf&rft.identifier=++ARAHMAN%2C+SAPUTRA++(2024)+KAJIAN+EKSPERIMENTAL+PERPINDAHAN+KALOR+PROSES+PEMBEKUAN+PCM+PARAFIN+PADA+SHELL+AND+TUBE+HEAT+EXCHANGER+DENGAN+POSISI+HORIZONTAL.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F82296%2F