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All Journal AUSTENIT Turbulen : Jurnal Teknik Mesin PETRA : Jurnal Teknologi Pendingin dan Tata Udara MACHINERY: Jurnal Teknologi Terapan
Baiti Hidayati
Politeknik Negeri Sriwjaya
Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Journal : AUSTENIT

 1 
AIR MOISTURE ANALYSIS OF POTATO DEHUMIDIFICATION PROCESS USING THE REFRIGERATION SYSTEM BAITI HIDAYATI; Baharuddin .; Reza Wahyudi
AUSTENIT Vol. 12 No. 1 (2020): AUSTENIT 12012020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (328.951 KB) | DOI: 10.5281/zenodo.4547818

Abstract

The refrigeration system is one of the technologies used to condition thetemperature of the air either by heating or cooling, in general refrigeration iscommonly used for human comfort needs and also for the freezing process. Inthis research, refrigeration is used for the process of drying potatoes using adehumidification method, which is the reduction of moisture in the air vapor.Potatoes will be cooled using a refrigeration process and then will be heatedusing a heater, data collection is carried out at a temperature of 600C heater, withdata collection each of 60 minutes, 120 minutes and 180 minutes. From theresults obtained, the dehumidifier method using a refrigeration system can drypotatoes to shrink 60% and humidity can be reduced to 83.3%.
PENERAPAN SISTEM REFRIGERASI PADA ALAT PEMBUAT ASAP CAIR UNTUK PENGOPTIMALAN HASIL PRODUKSI Herlin Sumarna; Haryanto .; Baiti Hidayati; Ozkar F Homzah
AUSTENIT Vol. 12 No. 2 (2020): AUSTENIT 12022020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.4547838

Abstract

Recently, liquid smoke is widely used for various needs, both for food purposes and for freezing rubber latex. Liquid smoke began to grow due to the large demand, also using biomass / waste as a base material. Immediate production results are needed by the condensation process. The application of the refrigeration system guides the temperature of the air which is used as a cooling medium in the condensation process during the process of making liquid smoke. This study uses coconut shell as raw material for pyrolysis, and there are 4 temperature variations that are applied in the liquid smoke production process. First without a refrigeration system, the application of a refrigeration system with temperature variations of 22 ° C, 18 ° C and the last one is 15 ° C. The data is taken every 30 minutes for 6 hours. Based on the research results, it was found that the maximum production results using the refrigeration system at an air temperature of 15 ° C, resulted in 375 ml of liquid smoke. Keywords: Liquid Smoke, Refrigeration, Pyrolysis, Coconut Shell
ANALISIS KELEMBABAN UDARA PADA AC SPLIT WALL USIA PAKAI 8 TAHUN DENGAN KAPASITAS 18000 Btu/hr BAITI HIDAYATI; Ferry Irawan; Yolanda Biola
AUSTENIT Vol. 13 No. 1 (2021): AUSTENIT 13012021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.4735758

Abstract

Penyejuk udara biasa yang di kenal dengan istilah AC semakin banyak beredar karena dapat memberikan kenyamanan pada manusia. Untuk memperoleh kenyamanan pada manusia memiliki batas temperatur dan kelembaban, banyak faktor yang dapat mempengaruhi kenyamanan manusia baik temperatur maupun kelembaban. Berdasarkan hal tersebut dilakukan penelitian sistem pendingin yang akan berpengaruh terhadap temperatur, RH (Relative Humidity) dan humidity ratio pada AC dengan kapasitas 18000 Btu/hr dengan volume ruangan 200m3. Berdasarkan hasil penelitian di dapat bahwa mesin pendingin yang sudah berusia 8 tahun masih mampu menjaga temperatur dan kelembaban nyaman manusia, temperatur dapat mencapai 22,30C dan pengurangan kelembaban maksimal mencapai 16,4 gr/kg.   
Co-Authors Ahmad Imam Rifa’i Apriyansyah Apriyansyah Ardiansyah Ardiansyah Azharuddin Azharuddin Baharuddin . Haryanto . Haryanto Haryanto Haryanto, Haryanto Hendradinata, Hendradinata Herlin Sumarna Herlin Sumarna Homzah, Ozkar F Jeni Irpandi Leo Saputra Saputra Maemonah, Maemonah Mardiana Mardiana Mardiana Muhammad Efran Pratama Novi Andriani Novi Andriani, Novi Pikki Tarnado Rachmat Subekti Reza Wahyudi Reza Wahyudi Wahyudi Toni Okviyanto Tri Satya Ramadhoni Wahyu Setiono Yolanda Biola Zainuri Anwar Zuria Pebrianty