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Analaysis of The Effect of Relative Humidity in The Eggs Incubator Mohd. Isa T. Ibrahim; Ahmad Syuhada; . Hamdani
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 2 (2012): Engineering
Publisher : Syiah Kuala University

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This study aimed to verify the effect of relative humidity during incubation ofduck eggs in the incubator on the rate of decline in egg weight, hatching day old duck weight, length and hatching eggs energy difference duck. Duck eggs taken from the poultry business in Meunasah Krueng, water fence, Lambaro, Aceh Besar. Then each egg was placed in an incubator unit in the three experimental groups, namely low humidity (57/58% RH), intermediate humidity (67/68% RH) and high humidity (71/72% RH). Incubation process done manually with temperature 38 oC incubator. Eggs were coded X and O adjacent to facilitate marking a reversal in current twice a day. Primary data retrieval from the first day until the fifteenth day by weighing the eggs and using electronic scales. Changes in egg weight reduction on the fifteenth day following (10.666%), (3.853%) and (2.859%) for the treatment of low humidity, intermediate andhigh, then the day of hatching eggs weigh hatching day old duck also showed that the weight is also affected by incubation and humidity differences by ANOVA analysis it can be concluded that the changes in egg weight reduction greatly influence the hatching duck weight difference and the difference so long incubation energy hatching day old duckling have more energy at low humidity (57/58% RH).

Studi Kemampuan Tanaman Rumah dalam Penyerapan Panas Matahari untuk Mengatasi Panas Lokal Ahmad Syuhada; Dharma Dawood
Jurnal Energi Dan Manufaktur Vol 8 No 1 (2015): April 2015
Publisher : Department of Mechanical Engineering, University of Udayana

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Energi matahari sangat dibutuhkan oleh seluruh makhluk hidup untuk berbagai macamkeperluan kehidupan. Pemakaian dengan jumlah yang tepat untuk setiap makhluk hidupmerupakan usaha untuk kelangsungan hidupnya. Tetapi apabila berlebihan akan sangatmengganggu kenyamanan thermal hidupnya. Banyaknya keluhan dari masyarakat yangmengatakan bahwa keadaan cuaca semakin panas khususnya di perkotaan, keadaan ini terjadiakibat tidak seimbangnya banyak bangunan dan jumlah tanaman yang ada sehingga penyerappanas radiasi yang dipancarkan matahari berkurang drastis. Untuk mengurangiketidaknyamanan thermal lokal di Banda Aceh dan sekitarnya dilakukan dengan caramemperbanyak pepohonan, dimulai dari lingkungan pekarangan rumah masing-masing, tamankota maupun taman-taman pekarangan rumah, sehingga akan tercipta kenyamanan thermal dilingkungan sekitarnya, karena fungsi tanaman adalah menguraikan karbondioksida menjadiOksigen serta menyerap panas matahari yang digunakan pada proses fotosintesis. Untukmemilih tanaman yang akan di tanam di pekarangan rumah supaya dapat mengurangi panas,diperlukan pengetahuan tentang kemampuannya tanaman dalam menyerap panas matahari.Karena itulah perlu kajian untuk mengetahui jenis tanaman yang paling banyak menyerappanas akibat radiasi matahari. Tanaman yang dikaji adalan tanaman yang biasa ditanam olehmasyarakat disekitar rumahnya seperti tanaman melinjo, jeruk nipis, mangga dan jambu.Manfaat yang diharapkan dari penelitian ini adalah dapat memberikan informasi bagimasyarakat khususnya di Banda Aceh tentang kemampuan masing-masing tanaman dalammenyerap panas untuk kenyamanan thermal di linkungan perumahan, dan tanaman mana yanglayak dan bagus untuk menjadikan suasana rumah sejuk dan nyaman terhadap panas.Kata kunci: panas, matahari, tanaman, kenyamanan termalSolar energy is needed by all living beings for various purposes of life. The use of the rightamount for every living being is an attempt for survival. But it would be very disturbing ifexcessive thermal comfort of his life. The number of complaints from people who say that theweather is getting hot, especially in urban areas, this situation occurs due to an imbalance ofmany buildings and the number of existing plants so that the heat absorbing radiation emittedby the sun is reduced drastically.To reduce the local thermal discomfort in Banda Aceh and itssurroundings is done by multiplying the trees, starting from the environment each home yard,city park and gardens, that will create thermal comfort in the surrounding environment, becausethe plant is to break the functions of carbon dioxide into oxygen and absorb solar heat used inthe process of photosynthesis.To choose of the plants types that will be planted in the homeyard in order to reduce the heat, the necessary knowledge of the plant's ability to absorb thesun's heat. It is needed the study of how to know the types of plants that absorb most of theheat due to solar radiation. Plants were assessed are plants that commonly grown by thepeople around her house like melinjo plants, lemon, mango and guava. The expected benefitsof this research is to provide information for people, especially in Banda Aceh on the ability ofeach plant to absorb heat for thermal comfort in residential environments and plants which areworthy and good to make the house cool and comfortable atmosphere to heat.Keywords: heat, sun, plants, thermal comfort

Experimental Review of Cold Storage for Fishery Products in Aceh Island using Solar Energy Khairunnas Nas Khairunnas; Ahmad Syuhada; Sarwo Edhy Sofyan
Jurnal POLIMESIN Vol 21, No 1 (2023): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i1.3519

Data from the Ministry of Maritime Affairs and Fisheries shows that Aceh Province, with a coastline length of 2666.3 km stretching from east to west, holds a variety of marine wealth, both fisheries and other natural resources. The province of Aceh has archipelagoes spread over Aceh Besar and Aceh Singkil. The archipelago areas in Aceh Besar are Aceh Island, Rice Island and Nasi Island. The availability of electricity in the archipelago, namely on the island of Aceh, is only at 18.00 - 22.00 and 5.00 - 8.00. Because of this, a study was carried out on using solar electricity to drive compressors in cold storage. This study aims to determine the solar energy capacity and photovoltaic area required for cold storage with a capacity of 100 kg of fish, determine the temperature of the cold storage when operating with and without load and determine the coefficient of performance (COP) of cold solar storage over time. This research was conducted experimentally to test the use of cold storage for storing fish. The results showed that the cold storage temperature was -15.9 ℃ with an average current of 0.87 A, a voltage of 226.02 V and a power of 124.72 W when operating without load, while with a load, the temperature was -3.1 ℃ with an average current is 0.890 A, voltage is 225.88 V, and power is 127.96 W. The ideal COP value is greater than the actual COP value (8.07 2.69). To run cold storage using solar energy, a battery with a capacity of 120 Ah is required until it reaches a temperature of -3.1 ℃ lasts 2 – 3 days with 40% remaining battery usage and is recharged every day

Planning analysis of solar power plant utilization using the PLN network grid system interconnection on Samudra University roof building ferri Festika; Ahmad Syuhada; Hamdani Umar
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.2621

Solar power plants can be applied in various forms of installation, either centralised or distributed, with each configuration system installation being either on-grid or off-grid. Samudra University plans to install a solar power plant for environmentally friendly applications and energy savings. The purpose of this study is to investigate the feasibility and benefits of Samudra University installing solar power generation capacity using a single-owner system on campus using SAM (System Advisor Model) applications using two axes with PV energy. The method used is to model the photovoltaic results with the System Advisor Model (SAM), which can develop new renewable energy photovoltaics. The use of solar energy as a producer of electrical energy in buildings at the ocean university by using the System Advisor Model application on the Single Owner (Grid) system in collaboration with local electricity (PLN) to continue the energy needs produced as much as 32,652,394 kWh will cost Rp. 372,864,450,000, and with an area of 105,179.9 m2 or ± 11 hectares of the total area of 49.8 hectares, it only uses ± 20% of the total area

Pengaruh Rasio Massa Air dan Udara Terhadap Unjuk Kerja Forced Draft Wet Cooling Sudut Inklinasi Splash Fill Berlubang Khairul Umurani; Ahmad Syuhada; M.I.. Maulana; Zahrul Fuadi
Prosiding Seminar Nasional Teknoka Vol 8 (2023): Proceeding of TEKNOKA National Seminar - 8
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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This study aims to experimentally analyse the performance of a forced wet cooling tower (WTC) using multilevel inclined perforated splash fill. The hot water temperature is set at 60 C; Packing has an inclination angle of 15o, 20o, 25o and a perforation ratio of 2.6%, which consists of five levels of galvanised plate fill. The water flow rate is ± 0.0917 kg/s, and the five variations of air flow rate are 0.02033, 0.02631, 0.02995, 0.03770, and 0.04261 kg/s. The inlet hot water temperature is 60 C. In this study, it can be seen that the ratio of water mass and air mass affects the performance of the cooling tower

ANALISIS EKSPERIMENTAL PERPINDAHAN PANAS PADA MENARA PENDINGIN TIPE PLAT DATAR BERTINGKAT Aulia, Fikri; Ahmad Syuhada; Razali, Razali
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1821

Cooling towers serve as an important tool in industrial settings to reduce heat in machines that use water and air as working media, this process involves hot water generated from the machine coming into direct contact with air resulting in a small portion of the water evaporating which then reduces its temperature. Although previous research has attempted to improve the performance of cooling towers, there is still considerable scope for further exploration in achieving optimal results. One way to improve it is to adjust and change the flow of distributing fluid media by adding the number of holes on the flat plate of the cooling tower. Based on this phenomenon, the researcher wants to examine the magnitude of the heat transfer impact on a multi-storey cooling tower using triangular perforated flat plates with varying numbers of holes. The overall height of the cooling tower is 2.4 meters, consisting of five flat plates arranged in stages with each flat plate dimension having a length of 0.7 meters and a width of 0.5 meters, having a plate area of 3.5 m² with a tilt angle of each plate arrangement on the cooling tower which is 15 °. The number of holes in a given flat plate is 45, 55, and 65 holes, while the inlet water temperature is set at 80°C, 85°C, and 90°C. The results of this study revealed that the number of holes 65 showed a greater heat transfer effect compared to the other variations. Consequently, the number of holes significantly affects the heat transfer coefficient, thus impacting the overall performance of the multistage cooling tower.

ANALYSIS OF HEAT TRANSFER CHARACTERISTICS OF TUBE BANKS ECONOMIZER USING NUMERICAL METHODS Mohd. Qobar; Ahmad Syuhada; M. Ilham Maulana
Bulletin of Engineering Science, Technology and Industry Vol. 1 No. 1 (2023): March
Publisher : PT. Radja Intercontinental Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59733/besti.v1i1.3

The economizer is a heat exchanger that functions as a preheater for feed water in the boiler which is used to utilize flue gas which will improve the performance of the boiler by increasing the water temperature before entering the steam drum. The flue gas used comes from the furnace output which has a temperature of 1337oC, then the flue gas passes through the superheater with a temperature of 1070oC and enters the economizer with a temperature of 389oC. In order to maximize the use of the high temperature flue gas that enters the economizer, therefore in this scientific work we will analyze the heat transfer characteristics of the economizer in the MACCHI TITAN M package boiler at PT. PIM-2. This water tube type boiler has a capacity to produce steam of 120 tons/hour or 33. 3 kg/s with a pressure of 44 kg/cm2 and an economizer with a design surface dimension of 2345 m2, an in-line arrangement of tube banks, a tube diameter of 70 mm, a tube length of 1122 mm and a tube width of 2000 mm. Based on these data, an economizer will be analyzed by comparing the arrangement of tube banks and variations in the number of tubes (150, 200 and 250) in each tube bank using numerical simulation methods. From the simulation, it was found that the staggered tube banks with the 250 tube variation showed better heat transfer characteristics than the other variations, where the flue gas inlet temperature of 389 oC decreased to 257.7 oC and the increase in water temperature (H2O) from 110 oC increased to 193 oC or 75.45% of the inlet water temperature. tube length 1122 mm and tube width 2000 mm. Based on these data, an economizer will be analyzed by comparing the arrangement of tube banks and variations in the number of tubes (150, 200 and 250) in each tube bank using numerical simulation methods. From the simulation, it was found that the staggered tube banks with the 250 tube variation showed better heat transfer characteristics than the other variations, where the flue gas inlet temperature of 389 oC decreased to 257.7 oC and the increase in water temperature (H2O) from 110 oC increased to 193 oC or 75.45% of the inlet water temperature. tube length 1122 mm and tube width 2000 mm. Based on these data, an economizer will be analyzed by comparing the arrangement of tube banks and variations in the number of tubes (150, 200 and 250) in each tube bank using numerical simulation methods. From the simulation, it was found that the staggered tube banks with the 250 tube variation showed better heat transfer characteristics than the other variations, where the flue gas inlet temperature of 389 oC decreased to 257.7 oC and the increase in water temperature (H2O) from 110 oC increased to 193 oC or 75.45% of the inlet water temperature.

ANALISIS EKSPERIMENTAL PERPINDAHAN PANAS PADA MENARA PENDINGIN TIPE PLAT DATAR BERTINGKAT Aulia, Fikri; Ahmad Syuhada; Razali, Razali
Jurnal Rekayasa Mesin Vol. 15 No. 3 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i3.1821

Cooling towers serve as an important tool in industrial settings to reduce heat in machines that use water and air as working media, this process involves hot water generated from the machine coming into direct contact with air resulting in a small portion of the water evaporating which then reduces its temperature. Although previous research has attempted to improve the performance of cooling towers, there is still considerable scope for further exploration in achieving optimal results. One way to improve it is to adjust and change the flow of distributing fluid media by adding the number of holes on the flat plate of the cooling tower. Based on this phenomenon, the researcher wants to examine the magnitude of the heat transfer impact on a multi-storey cooling tower using triangular perforated flat plates with varying numbers of holes. The overall height of the cooling tower is 2.4 meters, consisting of five flat plates arranged in stages with each flat plate dimension having a length of 0.7 meters and a width of 0.5 meters, having a plate area of 3.5 m² with a tilt angle of each plate arrangement on the cooling tower which is 15 °. The number of holes in a given flat plate is 45, 55, and 65 holes, while the inlet water temperature is set at 80°C, 85°C, and 90°C. The results of this study revealed that the number of holes 65 showed a greater heat transfer effect compared to the other variations. Consequently, the number of holes significantly affects the heat transfer coefficient, thus impacting the overall performance of the multistage cooling tower.

Pengembangan Modul Peningkatan Kesehatan Spiritual Berbasis Tazkiyatun Nafs untuk Siswa Kelas XII Darul Hikmah Model ADDIE Ahmad Syuhada; Achmad Ushuluddin; Firman Mansir
Reslaj: Religion Education Social Laa Roiba Journal Vol. 8 No. 10 (2026): RESLAJ: Religion Education Social Laa Roiba Journal
Publisher : Intitut Agama Islam Nasional Laa Roiba Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47467/reslaj.v8i10.13442

This study aimed to develop an Islamic Guidance and Counseling module based on Tazkiyatun Nafs using the ADDIE model that is feasible, practical, implementable, and demonstrates limited initial effectiveness in improving the spiritual health of Grade XII students at SMA Darul Hikmah. The study employed a Research and Development approach consisting of the stages of analysis, design, development, implementation, and evaluation. The limited trial involved 60 Grade XII students, two guidance and counseling teachers as module users, and five validators during the content-validation stage. Data were collected through interviews, observations, document analysis, validation forms, practicality questionnaires, implementation-observation sheets, and a 30-item spiritual health scale administered before and after five service sessions. Qualitative and quantitative data were analyzed using descriptive analysis, Aiken’s V, practicality and implementation percentages, internal consistency, paired-samples t-test, Cohen’s dzd_zdz, and N-Gain. The needs analysis resulted in five service focuses: strength of faith, freedom from diseases of the heart, noble character, productivity in social relationships, and happiness in this world and the hereafter. Content validation produced a mean Aiken’s V of 0.889, ranging from 0.800 to 1.000. The practicality score reached 85.16% according to the guidance and counseling teachers and 83.75% according to the students, while the implementation of the service syntax reached 91.67%. The mean spiritual health score increased from 2.650 at pretest to 3.129 at posttest. The paired-samples t-test indicated a significant difference, t(59)=7.771, p < 0.001, with Cohen’s dz=1.003 and an N-Gain of 0.321. Therefore, the module was considered feasible and practical for use in a limited trial and demonstrated initial potential effectiveness. However, because the study did not employ a control group, the findings cannot be interpreted as causal evidence or broadly generalized.

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