Perancangan Unit Mesin Pendingin (Cold Storage) untuk Produk Karkas Sapi Kapasitas 25 Ton dengan Kombinasi Refrigerasi Kompresi Uap, Refrigerasi Absorpsi, dan Flat Plate Solar Collector di Kabupaten Pamekasan-Madura

Canny Cado Dwi Putri Ayu, Budi Utomo Kukuh Widodo, Prabowo Prabowo
Submission Date: 2017-08-01 11:46:05
Accepted Date: 2018-01-09 21:27:32

Abstract


Pamekasan merupakan kota dengan potensi yang besar dalam bidang peternakan, yaitu produksi karkas sapi. Bahkan, proses ekspor sering dilakukan oleh masyarakat lokal ke berbagai daerah di luar Madura. Namun, mereka memilih cara yang salah dalam proses distribusi karkas. Mereka mengirim sapi dalam keadaan hidup dan melakukan proses penyembelihan di tempat tujuan. Proses ini akan lebih baik jika karkas terlebih dahulu dibekukan. Oleh karena itu, dibutuhkan desain cold storage. Pamekasan juga memiliki potensi iradiasi yang cukup, sehingga desain menggunakan solar collector jenis datar. Perancangan meliputi konstruksi dan sistem pendinginan, yaitu kombinasi refrigerasi kompresi uap dan absorpsi. Ammonia (R717) sebagai refrigeran dan Aquos-ammonia sebagai absorben-refrigeran pada absorpsi. Hal ini bertujuan agar karkas kapasitas 25 ton dapat didinginkan hingga temperatur -20℃. Variasi yang digunakan dalam proses perancangan yaitu persentase ammonia larutan lemah 10%, 20%, 30%, dan 40% untuk menentukan COP dan luas solar collector teroptimal. Hasil yang diperoleh yaitu beban maksimal 251,922 KW pada 15 jam pendinginan bulan Januari; nilai COP kompresi uap 3,375; COP optimal untuk refrigerasi absorpsi 0,794; luas solar collector 300,702 m2; dan pemilihan komponen sistem berdasar katalog.

Keywords


Absorpsi; Cold Storage; Solar Collector

References


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