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Pengaruh Porositas pada Perubahan Tekanan Campuran Gas CO₂ dan O₂ Terhadap Batuan Slag Nikel Zulfikri; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Porosity in solid materials plays a crucial role in controlling gas pressure behavior and diffusion, particularly in carbon absorption processes within Carbon Capture and Storage (CCS) systems. This study aims to investigate the effect of porosity variations on pressure changes of CO₂–O₂ gas mixtures in nickel slag rocks as potential carbon-absorbing materials. The research method employed a literature review based on various studies discussing the physicochemical characteristics of nickel slag, carbonation mechanisms, and gas interactions within porous structures. Key parameters analyzed include pore size distribution, channel connectivity, and diffusion rate affecting pressure dynamics during gas–solid reactions. The results indicate that highly porous nickel slag experiences a faster pressure drop due to more intensive carbonation reactions, whereas low porosity limits gas transport and slows the process. In conclusion, porosity is a dominant factor governing pressure dynamics and the efficiency of CO₂ capture in nickel slag materials.
Pengaruh Partisi Antar Layer Butiran Terhadap Gas CO₂ Pada Batuan Slag Nikel Amanda Setiawan; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

The absorption of CO₂ gas by solid materials is an important approach in the development of Carbon Capture and Storage (CCS) technology. Nickel slag, as a solid waste product of nickel smelting, has the potential to be used as a carbon absorbent material as well as a construction material. This study analyzes the effect of inter-particle layer partitions in nickel slag on CO₂ absorption and its implications for slag utilization. The method used is a literature review of journal articles and proceedings discussing the physicochemical properties of nickel slag, types of partitions, diffusion pathways, and carbonation performance. The results of the study show that the presence of solid-solid, solid-liquid, pore/crack, and chemical partitions expands the specific surface area, provides active reaction sites, and forms effective diffusion pathways, thereby increasing the capacity and rate of CO₂ absorption. Engineering the morphology of partitions through mechanochemical activation or chemical treatment is an important strategy for optimizing the function of nickel slag in supporting the application of CCS and the circular economy of industry.
Pemanfaatan Panas Buang Pendingin Udara untuk Proses Penguapan Air pada Sistem Desalinasi Berbasis Vortex Generator Genta Prastanadira; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

The clean water crisis caused by climate change and population growth has driven the development of efficient and sustainable desalination technologies. One alternative is to utilize waste heat from air conditioning systems as a thermal energy source for water evaporation processes. Hot air from air conditioning system condensers can be reused in the desalination process, especially when combined with vortex generators to increase heat transfer through turbulent flow. This study aims to review various studies on the effect of vortex generators on increasing the evaporation process in air conditioning waste heat-based desalination systems. The method used is a literature study of scientific publications discussing flow characteristics, temperature distribution, thermal efficiency, and water evaporation rate. The results of the review show that the application of vortex generators can increase the evaporation rate compared to conventional systems. This study provides the basis for the development of energy-efficient desalination systems with broad potential for clean water supply.
Tinjauan Pustaka: Evaporator Oil Essensial Hanad Arizal; Dan Mugisidi; Oktarina Heriani
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Evaporators with vacuum and heating systems are increasingly being used in the evaporation process of essential oils for aromatherapy due to their ability to increase efficiency without damaging the quality of volatile compounds. Their working principle is to lower the partial pressure so that the oil's boiling point can be reached at a lower temperature. Under these conditions, the active compounds in essential oils can be optimally evaporated without degradation due to excessive heat. This technology is crucial given the sensitivity of essential oils to high temperatures, as the chemical components in essential oils are highly stable. This study reviews various studies and scientific literature discussing the operating principles, system design, heat transfer characteristics, and temperature control techniques of modern evaporators. A descriptive-analytical approach was used to identify technological trends and the advantages of applying vacuum and heating systems to the aromatherapy industry. The review results indicate that this system combination increases thermal efficiency, accelerates evaporation rates, and maintains the aroma profile and chemical quality of the oil. Furthermore, the use of an automatic temperature control system improves process precision, reduces the loss of active compounds, and supports better energy efficiency compared to conventional heating methods. This technology holds great potential for the development of modern, stable, efficient, and environmentally friendly aromatherapy diffusers.
Review: Peningkatan Produktifitas Solar Still Menggunakan Kondensor Muhammad Irfan; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

The condenser is a key component in solar desalination systems that converts water vapor into fresh water through the condensation process. The efficiency of the condenser greatly affects the amount of fresh water produced. This study aims to review the development of research on the application of salt pond condensers in seawater desalination processes. The method used is a literature review of various scientific journals that discuss internal, external, spiral and conical condenser designs and their integration with solar still systems. The results of the study show that external condensers can increase productivity, while conical condensers increase efficiency. In addition, salt ponds have the potential to become a natural condensation medium that can store heat and improve system performance. This concept can be the basis for the development of efficient, economical, and environmentally friendly desalination technology to meet the need for clean water in coastal areas of Indonesia.
Review Laju Penguapan Air Laut pada Kolam Garam Tertutup Ahmad Ahdani; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Evaporation is the process of changing liquid into vapor due to differences in vapor pressure or increased heat energy. This process is important because it forms the basis for the transfer of energy and mass from the water surface to the atmosphere and plays a role in various applications such as desalination, salt production, agriculture, liquid waste treatment, natural cooling systems, and climate studies. This study aims to determine the parameters that influence the evaporation process of seawater in a closed salt pond system based on a literature review. The methodology used is a literature study of various studies discussing the factors that influence the rate of seawater evaporation. The parameters reviewed include water and air temperature, humidity, air velocity, pressure, and radiation intensity. The review results show that temperature and radiation intensity increase the evaporation rate, while humidity and high pressure decrease it. This study provides a basis for the development of efficient and sustainable closed salt ponds.
Tinjauan Pustaka: Kinerja Kondensor terhadap Produksi Air Tawar pada Proses Desalinasi Air Laut Ahmad Faiz Rahmatullah; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

The utilization of waste heat from air conditioning (AC) systems has the potential to serve as an alternative energy source for seawater desalination processes. However, the thermal efficiency of desalination systems is strongly influenced by the condensation stage, particularly by the shape and design of the condenser used. This review aims to examine and compare various condenser configurations such as shell and tube, coiled tube, plate, and finned condensers in the context of improving condensation efficiency and freshwater production. The study is conducted through a literature analysis that reviews key parameters such as heat transfer rate, coolant flow rate, and temperature differences between fluids. The review results show that shell and tube condensers provide the highest heat transfer effectiveness, while plate condensers offer better energy efficiency and ease of maintenance. In conclusion, selecting the appropriate condenser design can significantly enhance the efficiency of seawater desalination systems utilizing AC waste heat.
Review: Pemanfaatan Vakum pada Solar Still dalam Proses Laju Penguapan Air Laut untuk Pengaplikasian Desalinasi Kolam Garam Irfan Maulana Yusuf; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

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Abstract

Vacuum is a condition of air pressure lower than atmospheric pressure and has a significant influence on the process of changing the liquid phase to vapor. Vacuum pressure has a direct influence on increasing the rate of seawater evaporation by lowering the boiling point so that the evaporation process can occur at a low temperature. This study aims to analyze the effect of vacuum pressure on the rate of seawater evaporation for application in a salt pond desalination system. The method used is a literature review from various journals discussing the application of vacuum in the seawater desalination process. The results of the study indicate that reducing pressure significantly accelerates the rate of evaporation and reduces the need for heat energy. The application of vacuum pressure is considered effective in improving performance and efficiency compared to atmospheric pressure systems. This study can provide the development of an energy-efficient desalination system that can be potentially applied in coastal areas.
Review Pengaruh Penambahan Nanopartikel Pada Pelumas Terhadap Oli Mesin Dimas Maha Saputra; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/teknoka.v10i1.22645

Abstract

Improving engine efficiency and stability is a key component of engine technology, especially in the crucial aspect of lubrication to reduce friction and component wear. Conventional lubricants often have difficulty in maintaining thermal stability and tribological properties under high operating conditions. Therefore, the use of nanoparticles in lubricants is being developed as an innovation to improve engine performance. This review aims to analyze the effect of various types and concentrations of nanoparticles on the physical characteristics and performance of lubricants, such as viscosity, thermal conductivity, and the ability to reduce friction. The method used is an experiment in which metal oxide nanoparticles are mixed into the base oil using an ultrasonic method, followed by using a viscometer and tribometer. The findings of this review show that the addition of nanoparticles can significantly improve thermal stability and reduce the coefficient of variation of friction compared to oil without nanoparticle additives. This indicates that nanoparticle-based lubricants have the potential to improve engine and component efficiency.
Tinjauan Pustaka: Pengaruh Temperatur Udara keluar Terhadap Proses Penguapan Salman Alfariz; Dan Mugisidi
Prosiding Seminar Nasional Teknoka Vol 10 (2025): Proceeding of TEKNOKA National Seminar - 10
Publisher : Fakultas Teknik, Universitas Muhammadiyah Prof. Dr. Hamka, Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/teknoka.v10i1.22656

Abstract

The evaporation process is strongly influenced by air temperature, particularly the outlet air temperature, which determines the rate of moisture removal and energy efficiency. This literature review analyzes studies on the impact of outlet air temperature on evaporation performance across various applications, including drying systems, cooling towers, and desalination units. Findings from previous research indicate that higher outlet air temperatures generally increase the evaporation rate due to enhanced vapor pressure differences, yet may reduce overall energy efficiency if not properly controlled. Conversely, optimized airflow and moderate temperature gradients promote stable evaporation with lower energy losses. The reviewed literature highlights the importance of balancing thermal and aerodynamic parameters to achieve effective and sustainable evaporation processes. This review aims to provide a theoretical foundation for improving evaporative system design through precise control of outlet air temperature.
Co-Authors Abdul Rahman Abdul Rahman Soleh Pohan Adi Nugroho Adi Tri Siswanto Adittia Fajar Afandi, Rizki Afif Agil Hidayatulloh Agus Fikri Agus Fikri Ahmad Ahdani Ahmad Faiz Rahmatullah Ahmad Muflih Adzhar Ahmad Samil Mubarok Aji, Ikbal Prasetiyo Alamsyach, Rizky Amanda Setiawan Amin, Syahrul Arief Hamzah Avorizano, Arry Cahyani, Regita Septia Che Wan Mohd Noor Deka Rama Ligustian Dimas Maha Saputra Djeli, M Yusuf Dwibowo, Dany Alvian Emilia Roza Estu Sinduningrum Fadhlurrahman Zaki Fadhlurrahman Zaki Fadlurrahman Zaki Faldy Irwiensyah Faturahman, Hamdi Fauzi, Herman Fikri, Agus Fikri, Agus Firman Noor Hasan Firmansyah Azharul Gaza Juliyanto Genta Prastanadira Giri Parwatmoko Hamdi Faturahman Hamdi Faturohman Hamzah, Arif Hanad Arizal Hangga Putra Prabawa Hilda, Atiqah M. Hilmi, Irfan Ibnu Sulistiono Ikbal Prasetiyo Aji Irfan Maulana Yusuf Luhung, Rizal Andi Lutfan Zulwaqar M Yusuf Djeli M. Mujirudin Mohammad Mujirudin Mohammad Yusuf D Mubarok, Ahmad Samil muhammad irfan Muharom4, Vazri Muhidal Wasi Mujirudin Mujirudin Naufal Eka Prasetya Nofendri, Yos Nurfadillah, Zaka Nurkholid Nurkholid, Nurkholid Oktarina Heriani Oktarina Heriyani Oktarina Heriyani Oktarina Heriyani Oktarina Heriyani Oktarina Heriyani Oktavian, Akbar Pancatatva Hesti Gunawan Parwatmoko, Giri Qolibu Rozak Rahmad Bonanza Rahmatullah, Ahmad Faiz Rahmi Imanda Ramzah, Harry Regita Septia Cahyani Rifky, Rifky Riyan Ariyansah Rizal Andi Luhung Rizki Afif Afandi Salman Alfarisi Salman Alfariz Saputra, Alfian Ady Sayuti, Adi Tegar Sigit Maulana Malik Sinduningrum, Estu Soleh Pohan, Abdul Rahman Sugema Sulistiono, Ibnu Tegar Imaniar Kusnanto Wahyu Kuncoro Wasi, Muhidal Widodo Widodo Wilarso, Wilarso Wirangga, Ristanto Wirayudatama, Johan Yulikastomo Yulikastomo yusuf, Ahmad Maulana Zaka Nurfadilah Zulfikri