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All Journal International Journal of Applied Technology Research Prosiding Seminar Nasional Rekayasa Teknologi Industri dan Informasi ReTII
Ismail Wellid
Department Of Refrigeration & Air Conditioning Engineering, Politeknik Negeri Bandung, Bandung 40012, Indonesia
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Relationship Between Indoor Air Quality and Sick Building Syndrome in Post Office Building in Bandung Yudi Prana Hikmat; Ismail Wellid; Kasni Sumeru; Salma Dzakiyah Az-zahro; Mohamad Firdaus bin Sukri
Jurnal Internasional Penelitian Teknologi Terapan Vol 2 No 2 (2021): October 2021
Publisher : Bandung State Polytechnic (Politeknik Negeri Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/ijatr.v2i2.53

Abstract

Sick building syndrome (SBS) is a collection of symptoms experienced by buildings occupants such as headaches, mucous, membrane irritation, respiratory problems and fatigue. A building is claimed to have SBS if more than 20% of building occupants experience symptoms. Poor indoor air quality contributes to SBS in the building. This study aims to investigate the correlation between indoor air quality and SBS symptoms in 1st and 2nd floors of the Post office building in Bandung. The study used quantitative methods with a cross sectional study design. Data collection was carried out using particle counter, thermometer, lux meter and anemometer to measure the indoor air quality, while the questionnaire utilized random sampling technique with 119 respondents. The results of the primary data were compared with the air quality standard from Minister of Health No. 1077, 2021. The results of the Statically Compare Means and Independent T-test showed that the p-values of the temperature on the 1st floor and 2nd floors were 0.437 and 0.000, respectively. Meanwhile the p-values of PM10 and PM2.5 on the 1st and 2nd floors were 0.005 and 0.290 and 0.004 and 0.364, respectively, and the p-values of the lighting on the 1st and 2nd floors were 0.002 and 0.015. It indicates that there is a significant relationship between concentrations of PM10 and PM2.5 on the 1st floor with SBS symptoms and the temperature and humidity on the 2nd with SBS symptoms. Since 29 peoples (24% of the building’s occupants) experienced SBS, the building was considered to have a significant potential to cause SBS to its occupant.
MONITORING TEMPERATUR SISTEM AC SPLIT DENGAN METODE AKUISISI DATA BERBASIS ARDUINO UNO Faldian Faldian; Ismail Wellid; Yana Cahyana
Retii Prosiding Seminar Nasional ReTII ke-13 2018
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Sistem kompresi uap merupakan sistem yang paling banyak digunakan dan dikembangkan dalam sistem pendingin dan tata udara sejak lampau hingga saat ini. Sistem pendingin dan tata udara merupakan salah satu elemen penting dalam sebuah bangunan dan memiliki konsumsi energi terbesar, maka untuk mendapakan sistem yang hemat energi dibutuhkan analisa performansi dari sistem tersebut. Penelitian ini memanfaatkan Arduino sebagai sistem akuisisi data dimana pengukuran, pengumpulan data dan penyimpanan data suhu dapat dilakukan secara bersamaan sehingga pekerjaan tersebut lebih praktis, efisien dan hasil analisa data sistem menjadi lebih akurat. Pada penelitian ini dirancang sistem akuisisi data berbasis Arduino untuk memonitoring temperatur pipa (discharge, suction, masukan dan keluaran kondensor, masukan dan keluaran evaporator, dan masukan kapiler). Penyimpanan data pengukuran dilakukan secara otomatis menggunakan aplikasi PLX-daq, dan kinerja sistem AC split berkapasitas 1,5 PK menjadi objek analisa. Hasil pemanfaatan Arduino pada sistem ini mampu menjadi sistem akuisisi data pada sistem AC Split yang memiliki COP aktual sebesar 5.04, COPcarnot 7.24, efek pendinginan yang termanfaatkan terhadap kerja sistem refrigerasi sebesar 69% dan daya listrik sebesar 903 Watt. Penggunaan Arduino sebagai sistem akuisisi data menghadirkan sistem akuisisi data yang efisien, praktis, dan rendah biaya.
PERBANDINGAN KINERJA SISTEM MINIATUR SELUNCUR ES MENGGUNAKAN REFRIGERAN R22 DAN R290 (HIDROKARBON) Ismail Wellid; Yudi Prana Hikmat; Dini Faridah
Retii Prosiding Seminar Nasional ReTII ke-13 2018
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

Penelitian ini mengkaji kinerja sistem miniatur seluncur es menggunakan sistem refrigerasi kompresi uap yang menggunakan media transfer panas yang berbeda (refrigerant). Pada umumnya mesin menggunakan refrigeran HCFC-22 (R22) sebagai media transfer panas dalam sistemnya, sementara itu pada penelitian ini diusulkan mesin yang menggunakan refrigeran hidrokarbon (R290). Penelitian ini membandingkan kinerja sistem refrigerasi kompresi uap di arena seluncur es jika sistem menggunakan refrigerant R290 (MC22). Penggantian refrigerant ini dilakukan untuk memenuhi tujuan dari Protokol Montreal untuk menggantikan HCFC dalam peralatan pendingin yang ada, karena pengolahannya yang tidak ramah lingkungan. Beberapa parameter dipertimbangkan untuk meninjau kinerja sistem, yaitu: waktu pendinginan, COP, efisiensi, dan konsumsi energi sistem. Hasil penelitian menunjukkan COPactual dan COPcarnot pada sistem miniatur seluncur es menggunakan refrigeran hidrokarbon R290 memiliki nilai lebih besar dibandingkan sistem menggunakan R22. Dengan demikian, efisiensi sistem dapat meningkat sebesar 3,2%. Konsumsi energi dari sistem yang diusulkan dapat menghemat 5%. Berdasarkan percobaan dapat disimpulkan bahwa sistem miniatur seluncur es dengan refrigerant R290 dapat meningkatkan kinerja sistem, menghemat konsumsi energi, dan dapat menjadi salah satu solusi alternatif untuk mengurangi pemanasan global dan penipisan ozon yang disebabkan oleh aplikasi penggunaan refrigeran CFC.Kata kunci: mesin seluncur es, refrigerasi, sistem kompresi uap.
Experimental Investigation on PM10 and PM2.5 Concentrations in North Bandung Ismail Wellid; Nita Nurfitriani; Muhamad Anda Falahuddin; Luga Martin Simbolon; Cecep Sunardi; Neneng Nuryati; Mohamad Firdaus bin Sukri
Jurnal Internasional Penelitian Teknologi Terapan Vol 4 No 2 (2023): October 2023
Publisher : Bandung State Polytechnic (Politeknik Negeri Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/ijatr.v4i2.124

Abstract

North Bandung is an area where there are several tourist attractions, including the Dago Dream Park. The main road to several locations in North Bandung is via the road in front of Terminal Dago. For this reason, the purpose of this study was to collect data on PM2.5 and PM10 concentrations at both locations, namely in front of Terminal Dago and Dago Dream Park. Data collection was carried out for seven days, from Monday to Sunday, from 08.00 to 16.00 local time. To evaluate air quality in these two places, the national standard, namely PPRI No. 22 of 2021 and international standards from WHO were applied. The measurement results show that the concentrations of PM2.5 and PM10 in these two locations are still within the national standard. Meanwhile, when evaluated with WHO standards, PM10 concentrations in both locations are still within standard, but for PM2.5, there are several days where the air quality is out of the standard. The average concentrations of PM2.5 and PM10 during the 7 days of measurement at Terminal Dago are 19.9 μg/m3 and 21.6 μg/m3, respectively. While the average concentration of PM2.5 and PM10 during 1 week of data collection were 18.9 μg/m3 and 19.9 μg/m3, respectively. This means that the concentration of PM2.5 and PM10 at Terminal Dago is slightly higher than that of at Dago Dream Park. In addition, based on an evaluation using national standards, Dago Dream Park tourist attractions still have good air quality and are safe for local residents and tourists. From the data recorded at the Health Centre (Puskesmas), the number of ARI cases in the two locations in 2020 and 2021 is relatively not much different.
Co-Authors Cecep Sunardi Dini Faridah Faldian Faldian Kasni Sumeru Luga Martin Simbolon Mohamad Firdaus bin Sukri Mohamad Firdaus bin Sukri Muhamad Anda Falahuddin Neneng Nuryati Nita Nurfitriani Salma Dzakiyah Az-zahro Yana Cahyana Yudi Prana Hikmat