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All Journal Biotropika Tesa Arsitektur SINEKTIKA: Jurnal Arsitektur Plano Madani : Jurnal Perencanaan Wilayah dan Kota Jurnal Linears PURWARUPA Jurnal Arsitektur Atrium : Jurnal Arsitektur EPI International Journal of Engineering Jurnal Penelitian Enjiniring Fakultas Teknik Unhas
Baharuddin Hamzah
Departemen Arsitektur, Fakultas Teknik, Universitas Hasanuddin, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Social Sciences Transportation

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The Effect of Air Distribution System Towards Indoor Air Quality (Case Study: Auditorium of Phinisi Tower) Yetti Yunianti Ishak; Baharuddin Hamzah; Rosady Mulyadi
EPI International Journal of Engineering Vol 1 No 1 (2018): Volume 1 Number 1, February 2018
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research aims to analyze the type of air distribution system in auditorium, the effect on air quality in the room, as well as the design of appropriate air distribution systems for the auditorium to improve air quality. This study used quantitative methods, by measuring the CO2 gas concentration, air temperature and humidity in room, using the HT-2000 data logger. The measurements were conducted when the room is empty and when the room is occupied. After that, the analysis and simulation were done by using ANSYS-Fluent software. Displacement ventilation distribution system was designed by calculating the total amount of cooling load, the required air flow rate, the air supply temperature, and the return air temperature. The analysis result showed that the mixing ventilation distribution system in the auditorium could not resolve air quality in the room. Based on that results when the room is inhabited, it was known that the lowest and highest value for CO2 concentration level was 973 ppm and 1993 ppm; for air temperature of 20.5oC and 28,6oC; while the room air humidity of 49% and 71%. The displacement ventilation distribution system was designed to overcome the air quality problem in the chamber by air temperature setting was 24oC, the air supply velocity coming from the diffuser was 0.25 m/s, the total surface area of ​​the diffuser was 20.7 m2, and the flow pattern of moving air from the bottom to top of the room.
Air Quality Characteristics in Junior High School Classroom with Natural Ventilation in Pangkep Regency Nur Mutmainnah; Rosady Mulyadi; Baharuddin Hamzah
EPI International Journal of Engineering Vol 2 No 2 (2019): Volume 2 Number 2, August 2019 with Special Issue on Natural Disaster and Mitigat
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.082019.11

Abstract

The indoor air quality room has turned out to be a major concern due to its adverse effects on human health. This is related to the level of activity of human spend almost 90 percent of their time indoors. This study aims to identify the characteristics of air quality in classrooms with natural ventilation systems in three different schools which vary in topography and the surrounding environment, namely coastal areas, lowlands, and mountains. Air quality measurement focuses on CO, CO2 concentration, total dust content, temperature, humidity, and airflow velocity. The statistical results showed significantly different (p <0.05) in air quality parameters among those three schools. The CO and CO2 concentrations in the three schools are below the recommendations required by DOSH and ASHRAE. This clarifies that a well-used of a natural ventilation system is able to maintain the air quality in the classroom. The measurement of total dust levels was above the threshold required by the Ministry of Health of the Republic of Indonesia No.1405/MENKES/SK/XI/2002. In addition, there was a significant relationship (p <0.05) between air pollutants and meteorological factors such as temperature and air humidity in the classroom. The study found that there was an influence of human activity level and the surrounding environment on the amount of pollutants concentration in the classroom.
Air Quality of a Parking Building in Makassar (A Case Study of Bosowa Tower Parking Building) Nasrul Kulle; Baharuddin Hamzah; Rosady Mulyadi
EPI International Journal of Engineering Vol 4 No 1 (2021): Volume 4 Number 1, February 2021
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.022021.11

Abstract

This study aims to determine the level of air quality in the parking building based on the pollution content in it (CO, CO2, HCHO and, VOC), to analyze the effect of the weather, intensity of motorized vehicle traffic, and surface elevation to the air quality. The dependent variable is the level of air pollution. The research sample is the Makassar Bosowa Tower Parking Building, data collection was carried out by direct measurement and observation in 12 days from November 24th till December 17th. The research was done using the comparative method, The data processed using the Mann-Whitney difference test, and the Spearman correlation test using SPSS application. The results showed that the average CO levels had exceeded the limit of good air quality, the average of CO2 levels was still within the limits for good air quality, and the average of HCHO and VOC levels were mostly within the limits for good indoor air quality, according to The Indonesia Minister of Health Regulation Number 1077 in 2011. The result of measurements and tests shows that the changes in the weather do not have a significant effect on the air quality. The amount and the intensity of motorized vehicle traffic affect the air quality, especially during rainy weather.
Integration of Natural and Artificial Light on Energy Efficiency of the Mega Bank Makassar Tower Building Isty Cahyani Ismail; Ramli Rahim; Baharuddin Hamzah
EPI International Journal of Engineering Vol 4 No 1 (2021): Volume 4 Number 1, February 2021
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.022021.10

Abstract

One of the largest energy consumers in the world is buildings. The energy consumption comes from the lighting system. Energy use in buildings is generally 25% for lighting systems. The strategy used in building design is to reduce energy consumption while maintaining the best comfort in a building. The application of energy-saving concepts from the building sector is optimizing the lighting system by integrating natural and artificial lighting systems. This study aims to determine the light intensity in the integrated lighting system of natural and artificial manually and also to find out how much energy can be saved with the integrated lighting system manually. The research location is at the Mega Bank Makassar Tower Building. The research sample was selected by purposive sampling and the sixth floor was chosen as the research location. In this study, simulations were carried out using the DIAlux 4.13 program to integrate natural and artificial light and to calculate the amount of energy efficiency in the workspace. To obtain optimal light intensity and energy savings, a simulation was carried out by turning off half the light points in the workspace, especially the light points around the building openings. The simulation results show that the average integrated lighting quality meets the minimum lighting requirements and can save energy usage by up to 50%. Keywords: energy efficiency; integration lighting; workspace
Analisis Pengaruh Hambatan Samping terhadap Kinerja Ruas Jalan Perintis Kemerdekaan Ardiansyah Muhammad; Baharuddin Hamzah; Jamaluddin Rahim
Jurnal Penelitian Enjiniring Vol 22 No 2 (2018)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.308 KB) | DOI: 10.25042/jpe.112018.01

Abstract

Hambatan samping merupakan faktor yang dapat menyebabkan terjadinya penurunan kinerja ruas jalan yang berujung pada kemacetan di sepanjang jalan, berupa pejalan kaki keluar masuk dari sisi jalan, kendaraan parkir/berhenti untuk menaikturunkan penumpang, kendaraan keluar masuk dari sisi jalan. Penelitian ini bertujuan menganalisis jenis hambatan samping yang memiliki pengaruh dominan terhadap kinerja jalan Perintis Kemerdekaan kawasan Sanrangan dan merekomendasikan solusi untuk mengatasi permasalahan lalu lintasnya. Pengamatan lapangan menggunakan metode Survei kendaraan bergerak dimana pengamat mengikuti arus. Hasil dianalisis secara deskriptif kuantitatif melalui uji regresi linier berganda. Lokasi survei bertempat di jalan Perintis Kemerdekaan km 14+750 - km 15+000 tepatnya di kawasan Sanrangan yang memiliki tiga lokasi konflik lalu lintas yaitu: jalan Asrama Haji Lama, jalan masuk PT. KIMA dan jalan Sanrangan. Hasil penelitian menunjukkan bahwa jenis hambatan samping yang memiliki pengaruh dominan terhadap kinerja jalan Perintis Kemerdekaan kawasan Sanrangan adalah sepeda motor yang keluar (motor out) dari tiga lokasi di sisi segmen jalan tersebut, dengan selisih nilai R square persamaan regresi linier berganda pada kondisi eksisting dan kondisi yang ditinjau sebesar 7,8% dengan nilai R square eksisting sebesar 89 %. Rekomendasi solusi penanganan permasalahan yang memungkinkan adalah dengan memasang rambu lalu lintas di beberapa titik, pemasangan separator atau median jalan dan juga pembuatan zebra cross .
Kenyamanan Termal Sekolah Menengah Pertama Negeri di Wilayah Pesisir, Dataran Rendah dan Pegunungan di Kabupaten Pangkajene Kepulauan Andi Yunita; Baharuddin Hamzah; Rosady Mulyadi
Jurnal Penelitian Enjiniring Vol 22 No 2 (2018)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.765 KB) | DOI: 10.25042/jpe.112018.03

Abstract

Penelitian ini bertujuan menganalisa tingkat kenyamanan termal ruang kelas Sekolah Menengah Pertama Negeri pada wilayah pesisir, dataran rendah dan pegunungan, dan menganalisa perbedaan kenyamanan termal ruang kelas Sekolah Menengah Pertama Negeri di wilayah pesisir, dataran rendah dan pegunungan. Penelitian ini menggunakan metode Survei pengukuran objektif berupa pakaian yang digunakan dan aktifitas siswa, dan data parameter lingkungan berupa temperatur udara, kelembaban relatif, dan kecepatan aliran udara, serta pengukuran subyektif meliputi mengukur tingkat kenyamanan termal yang dirasakan oleh siswa dengan mengisi kuisioner survei kenyamanan termal, dengan menggunakan kuisioner survey kenyamanan termal dari ASHRAE Standar 55. Hasil penelitian menunjukkan secara statistik perbedaan signifikan (p<0.05) parameter temperatur dan kelembaban relatif pada tiga sekolah, dimana temperatur berada diatas batas kenyamanan yang dipersyaratkan MENKES NO.261/MENKES/SK/II/1998 sedangkan kelembaban hanya di dataran rendah yang diatas 60% yang dipersyaratkan Balai Meteorologi dan Klimatologi, 2003, namun untuk kecepatan udara perbedaannya tidak signifikan dan berada pada batas nyaman menurut Vector Olgay. Responden sebagian besar merasa nyaman dan menerima parameter lingkungan yang ada karena sudah terbiasa dengan temperatur yang ada namun tetap menginginkan sedikit sejuk. Studi menemukan bahwa ada pengaruh pakaian yang digunakan, kondisi lingkungan terutama vegetasi, dan ketinggian lokasi serta aklimatisasi (adaptasi tubuh terhadap lingkungan sekitar) terhadap kenyamanan termal ruang kelas disekolah.
Pengaruh Pembayangan terhadap Kenyamanan Termal pada Rumah Tinggal di Perumahan Bukti Baruga Antang Makassar Jumriya Jumriya; Rosady Mulyadi; Baharuddin Hamzah
Jurnal Penelitian Enjiniring Vol 23 No 1 (2019)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.011 KB) | DOI: 10.25042/jpe.052019.03

Abstract

Abstrak_ Penelitian ini dilakukan dengan mengukur kenyamanan termal alami dan mengetahui seberapa besar pengaruh tanaman peneduh terhadap kenyamanan termal alami didalam rumah tinggal. Rumah tinggal dikelompokkan menjadi dua kelompok yaitu rumah tinggal yang ada tanaman peneduh dan rumah tinggal yang tidak ada tanaman peneduh. Data pengukuran statis dilakukan dengan beberapa variabel kenyamanan berupa suhu, kelembaban, dan kecepatan angin kemudian diukur menggunakan alat HOBO temp/RH logger dengan waktu pengukuran dari pukul 06.00-18.00 WITA. Hasil penelitian menunjukkan bahwa rata-rata temperatur tertinggi untuk rumah tinggal yang ada tanaman peneduh 30,2°C dan rumah tinggal yang tidak ada tanaman peneduh 31,3°C. Kemudian rata-rata kelembaban tertinggi rumah tinggal yang ada tanaman peneduh 73% dan yang tidak ada tanaman peneduh 73%, dengan ini kelembaban berada pada zona yang nyaman. Sedangkan hasil rata-rata 0,19 m/s untuk kecepatan angin tertinggi rumah tinggal yang tidak ada tanaman peneduh dan 0,65 m/s rumah tinggal yang ada tanaman peneduh. Hasil survey kenyamanan penghuni menunjukkan sebagian responden masih merasa nyaman namun tetap mengharapkan kondisi kenyamanan termal yang lebih sejuk lagi. Responden beradaptasi dengan kondisi lingkungannya dengan cara memilih pakaian yang nyaman dan tipis serta mengurangi kegiatan yang menimbulkan banyak keringat. Kata kunci : Kenyamanan Termal, Tanaman Peneduh, Rumah tinggal, Responden penghuni. Abstract_ This research was conducted by measuring natural thermal comfort and knowing how much influence the shade plants have on natural thermal comfort in the house. Dwellings are grouped into two groups namely dwellings with shade plants and dwellings with no shade plants. Static measurement data is carried out with several comfort variables in the form of temperature, humidity, and wind speed and then measured using a HOBO temp / RH logger tool with measurement time from 06.00-18.00 WITA. The results showed that the average highest temperature for houses with shade plants was 30.2 ° C and houses without shade plants were 31.3 ° C. Then the highest average humidity of residential houses with 73% shade plants and 73% without shade plants, with this humidity is in the comfort zone. While the average yield of 0.19 m / s for the highest wind speed of houses without shade plants and 0.65 m / s of shade houses. The results of the occupants comfort survey show that some respondents still feel comfortable but still expect cooler conditions of thermal comfort. Respondents adapt to environmental conditions by choosing comfortable and thin clothing and reducing activities that cause a lot of sweat. Keywords : Thermal Comfort, Shade Plants, Residential Houses, Resident Respondents
Jenis dan Kekerabatan Kupu-Kupu (Lepidoptera) di Taman Hutan Raya Sulawesi Tengah Moh Sabran; Rocky RT Lembah; Wahyudi Wahyudi; Hamzah Baharuddin; Manap Trianto; Samsurizal M Suleman
Biotropika: Journal of Tropical Biology Vol 9, No 1 (2021)
Publisher : University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.biotropika.2021.009.01.06

Abstract

Jenis dan hubungan kekerabatan kupu-kupu erat kaitannya dengan pelestarian dan pemanfaatan sumber daya hayati di Indonesia. Tujuan penelitian ini untuk mengetahui jenis dan kekerabatan kupu-kupu (Lepidoptera) di Taman Hutan Raya Sulawesi Tengah. Pengambilan sampel kupu-kupu menggunakan sweeping net dengan metode purposive sampling pada tiga lokasi Daerah Aliran Sungai (DAS) yang berbeda yaitu Vatutela, Kawatuna, dan Poboya. Sampel kupu-kupu yang diperoleh di lokasi penelitian selanjutnya diidentifikasi di Laboratorium Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Tadulako. Hasil penelitian menunjukkan bahwa terdapat 97 spesies dari lima famili kupu-kupu, yaitu Papilionidae (14 spesies), Pieridae (16 spesies), Nymphalidae (46 spesies), Lycanidae (15 spesies), dan Hesperiidae (6 spesies). Sampel penelitian yang digunakan untuk analisis hubungan kekerabatan adalah 23 spesies dari lima famili kupu-kupu yang mendominasi pada lokasi penelitian. Karakter yang diamati meliputi 32 karakter. Analisis hubungan kekerabatan dihitung menggunakan indeks kesamaan Sorensen, selanjutnya diolah menggunakan perangkat lunak Multivariate Statistical Package (MVSP). Hubungan kekerabatan terdekat yaitu antara spesies Appias ithome dan A. zarinda yang didukung dengan indeks similaritas di atas 0,90 dan hubungan kekerabatan terjauh terjadi antara spesies Bibasis sp. dengan spesies lainnya yang berasal dari famili Hesperiidae yang didukung dengan indeks similaritas di bawah 0,7.
Thermal Comfort Identification of Traditional Bugis House in Humid Tropical Climate Sahabuddin Latif; Baharuddin Hamzah; Ramli Rahim; Rosady Mulyadi
Tesa Arsitektur Vol 17, No 1: Juni 2019
Publisher : Unika Soegijapranata Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/tesa.v17i1.1803

Abstract

This study aims to determine the thermal comfort conditions in the interior of traditional Bugis houses in South Sulawesi. This phase measured 18 (eighteen) houses by collecting data on 2 (two) main variables of room thermal comfort, namely air temperature and relative humidity. The recording time starts from 08.00 to 16.00 WITA. Observation made to collect room geometry data, building orientation, roof slope, and material used. Measuring instruments are placed in the living room throughout the room. The analysis carried out on the measurement data is then correlated with the observation. The results show that the average outside temperature above the thermal comfort standard is around 32.0 to 37.4℃ from morning to afternoon, the maximum temperature reaching 41.7℃ occurs around 13.00 to 14.00 WITA and the minimum temperature is 28.2℃ only occurs in the morning. Air humidity average is relatively fair in the thermal comfort zone between 42.8 to 69.8%. Material gives the most dominant influence on heat induction from the outside environment to the interior space. The orientation of the house found in North-South is hotter, the roof with a double slope is hotter, and the lower the ceiling is more hot.
PENGALIRAN UDARA UNTUK KENYAMANAN TERMAL RUANG KELAS DENGAN METODE SIMULASI COMPUTATIONAL FLUID DYNAMICS Sahabuddin Latif; Baharuddin Hamzah; Ihsan Ihsan
Sinektika: Jurnal Arsitektur Vol 14, No 2: Juli 2014
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (475.239 KB) | DOI: 10.23917/sinektika.v14i2.1438

Abstract

Sirkulasi udara yang baik sangat dibutuhkan pada ruang berventilasi alami untuk mencapai kenyamanan termal, karena dapat  mempercepat proses evaporative cooling,pengeluaran panas dan ketersediaan udara segar dalam ruang. Penelitian ini bertujuanmengkaji aliran udara pada Ruang Kelas Gedung Kuliah Bersama Fakultas TeknikUniversitas Hasanuddin di Kabupaten Gowa, agar ditemukan rekayasa pengaliran udarayang dapat mempercepat terjadinya proses pengeluaran panas. Penelitian eksperimentalini menggunakan metode simulasi CFD (Computational Fluid Dynamics). Parameter input dalam simulasi diperoleh melalui  pengukuran di lapangan berupa dimensi ruang kelas, luas bukaan ventilasi, dan parameter iklim mikro. Rekayasa aliran udara dilakukanterhadap tiga perlakuan yaitu kecepatan udara, luas bukaan, serta modifikasi darikecepatan udara dan luas bukaan. Analisis dilakukan untuk mengetahui bagian ruangyang mengalami aliran udara tinggi dan rendah serta mengetahui faktor pendukung dan kendala dengan menggunakan perangkat lunak SolidWorks Simulation 2013. Hasilpenelitian memperlihatkan bahwa sistem ventilasi eksisting ruang-ruang kelas dapatmendistribusikan pergerakan udara yang nyaman di dalam ruang antara 0.25 m/s hingga 1.5 m/s, pada parameter inlet 1 m/s hingga 3 m/s dengan kenyamanan ruangan (51.85%) hingga (85.19%). Setelah dilakukan perbaikan sistem ventilasi pada ruang kelas,kenyamanan ruang dapat ditingkatkan menjadi (96.30%) hingga (100%), dengan rasioluasan bukaan ventilasi (21.60%) dari luas lantai ruangan, dengan rincian luas bukaaninlet (14.50%) dan luas bukaan outlet (7.10%). Disimpulkan bahwa penambahan luas inlet dan outlet dengan rasio yang tepat pada ruang kelas, dapat mengoptimalkansirkulasi udara. Diharapkan agar jendela kaca mati pada ruang-ruang kelas di buka untukmenambah luas inlet dan penambahan luas bukaan dinding outlet bagian bawah, pintusebaiknya di tutup pada saat ruang digunakan.
Co-Authors Andi Yunita Ardiansyah Muhammad Dian Febrina Idrus, Irnawaty Ihsan Ihsan Isty Cahyani Ismail Jamaluddin Rahim Jumriya Jumriya Kusno, Asniawaty Manap Trianto Muh. Awaluddin Hamdy Muhammad Rafdy Adriansyah Nasrul Kulle Nasrullah Nasrullah Nur Mutmainnah Nurul Jamala Ramli Rahim Ramli Rahim Ramli Rahim Ramli Rahim Ramli Rahim Rocky RT Lembah Rosady Mulyadi Rosady Mulyadi Sahabuddin Latif Samsurizal, M. Sulaeman Shirly Wunas Wahyudi Wahyudi Yetti Yunianti Ishak