<![CDATA[Sistem pendingin dengan menara pendingin telah banyak digunakan dalam dunia industri salah satunya adalah pembangkit daya uap. Inti dari menara pendingin adalah melepas panas dari fluida kerja ke atmosfer dengan bantuan kipas. Keoptimalan perpindahan panas antara fluida kerja dengan atmosfer bergantung pada debit fluida kerja yang dialirkan dan debit udara yang mendinginkan. Besar debit fluida kerja dengan debit udara perlu ditemukan pada titik tertentu sehingga didapatkan perpindahan panas maksimum. Pada penelitian ini dilakukan variasi debit air sebagai pendingin radiator dari debit 0,5 LPM hingga 18 LPM dan debit udara dibiarkan tetap pada putaran poros kipas sebesar 1500 rpm. Dari perhitungan data pengukuran didapat fenomena daya pompa, input panas, dan ouput panas semakin menurun dengan makin bertambahnya suhu kondensasi namun COP siklus semakin meningkat dengan semakin bertambahnya suhu kondensasi. Hal serupa juga terjadi pada fenomena menara pendingin yaitu input panas dan ouput panas menara pendingin semakin menurun dengan makin bertambahnya suhu kondensasi namun efisiensi menara pendingin makin meningkat dengan makin bertambahnya suhu kondensasi.
Kata Kunci: Menara pendingin, debit air, debit udara.
ABSTRACT
Refrigeration system with cooling tower have been many used in industrial, one of them was in steam power generation. The main of the cooling tower is to release heat from working fluid to atmosphere with the help of fan. The optimization of heat transfer between working fluid to atmosphere depend on the working fluid capacity which through in the chamber and the air capacity which cooling down. The amount of working fluid capacity and air capacity need to be met on a define spot so that it got the maximum heat transfer. In this research has been did variation of water capacity as radiator cooling from capacity of 0,5 LPM to 18 LPM and the air capacity has been released constant to fan axis rotation as 1500 rpm. From the count of measured data we got phenomenon of pump power, heat input, and heat output that are the value of thatmore diminishly with the increasing of condensation temperature but the cycle COP more increasingly with the increasing of condensation temperature. The same things also happen in the cooling tower phenomenon that are the value of cooling tower heat input and heat output more diminishly with the increasing of condensation temperature but the cooling tower COP more increasingly with the increasing of condensation temperature.
Keywords: cooling tower, water capacity, air capacity.]]>
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