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All Journal Jurnal Teknologi Terapan KURVATEK Industrial Research Workshop and National Seminar Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Windy Hermawan Mitrakusuma
Jurusan Teknik Refrigerasi Dan Tata Udara Politeknik Negeri Bandung, Bandung, Indonesia
Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : KURVATEK

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KAJI EKSPERIMENTAL PENINGKATAN SUB-COOLING KONDESER PADA KULKAS SATU PINTU MENGGUNAKAN AIR KONDENSAT M. Fathan Sugih Bagja; Windy Hermawan Mitrakusuma; Triaji Pangripto Pramudantoro
KURVATEK Vol 6 No 2 (2021): November 2021
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v6i2.2616

Abstract

Condensate water that collects in storage containers under the freezer cabin is often a problem in household refrigerators because it causes ice formation and puddles. In this final project, an experimental increase in sub-cooling in a single-door refrigerator is carried out by spraying condensate water on the kondenser outside the refrigerator every 2 minutes. It aims to utilize condensate water and improve system performance. After the measurement and data assessment process was carried out, the kondenser condition with spraying obtained chilling time for 38 minutes with the average data being stable from the 30th to the 36th minute resulting in an COPactual value of 3.2, COPcarnot 4.21, and an efficiency value. by 75.8%, while in kondenser conditions without spraying by condensate water, chilling time is obtained for 40 minutes with an average stable time from 32 to 38 minutes resulting in an COPactual value of 2.91, COPcarnot 3.97, and an efficiency value of 73.3 %. Then it can be concluded that the increase in sub-cooling using condensate water effectively utilizes condensate water and improves system performance.
USE OF THERMAL IMAGING CAMERA TO CHECK FOR REFRIGERANT LEAKS ON A REFRIGERATION SYSTEM Windy Hermawan Mitrakusuma; Muhammad Raja Bara Ramadhan Siswanto; Wirenda Sekar Ayu
KURVATEK Vol 7 No 2 (2022): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v7i2.3195

Abstract

Tulisan ini menganalisis tentang penggunaan kamera thermal imaging untuk pengecekan kebocoran refrigerant pada system refrigerasi. Dalam suatu prosedur perawatan sistem RHVAC, salah satu prosesnya merupakan pengecekan kebocoran pada pipa sistem RHVAC tersebut. Ada berbagai macam metode dalam melakukan pemeriksaan kebocoran pada sistem RHVAC. Pada tugas akhir ini akan dilakukan prosedur pemeriksaan kebocoran menggunakan metode yang jarang dipakai, yaitu menggunakan kamera thermal imaging. Alat ini dapat menangkap gambar suatu objek menggunakan radiasi inframerah sehingga distribusi temperatur objek tersebut dapat terlihat pada foto yang dihasilkan kamera thermal imaging ini. Pada suatu kebocoran fluida seperti refrigeran akan terjadi proses throttling yang menyebabkan adanya perbedaan temperatur fluida di dalam pipa dengan temperatur fluida yang keluar melewati lubang kebocoran. Dengan kamera thermal imaging hasil kebocoran dapat di deteksi, namun ada beberapa batasan dari kamera tersebut yang perlu diperhatikan dalam prosedur pengecekan kebocoran agar hasil yang didapatkan optimal.
Co-Authors Ahmad Maulana Andriyanto Setyawan Bunga Putri Shaumi De endarlianto Dhyta Aulia Nurhaniffah Dian Anggraeni Dwi Andre Rajendradika Farash Arya Pratama KURNIASETIAWATI, ANNISA M. Fathan Sugih Bagja MARIA BINTANG Muhamad Anda Falahuddin Muhammad Raja Bara Ramadhan Siswanto Racchel Dewi RiyantoPutri Samsul Kamal Sri Murniati Triaji Pangripto Pramudantoro Wirenda Sekar Ayu