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Journal articles on the topic 'Engine room ventilation'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Alizadeh, E., A. Maleki, and Α. Mohamadi. "An Investigation of the Effect of Ventilation Inlet and Outlet Arrangement on Heat Concentration in a Ship Engine Room." Engineering, Technology & Applied Science Research 7, no. 5 (2017): 1996–2004. http://dx.doi.org/10.48084/etasr.1288.

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Τhe ventilation in the ship engine rooms is an essential issue concerning finest performance of engines and diesel generators as well as electric motors. The present study has aimed at the analysis of temperature distribution inside the ship main engine room. In the same way, attempts have been made to identify those points with considerable thermal concentration in main engine room space, so that proper ventilation systems could be engineered and utilized and favorable thermal conditions could be realized. The CFD approach has been utilized in order to analyze impact of the designed ventilati

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2

Alizadeh, E., A. Maleki, and Α. Mohamadi. "An Investigation of the Effect of Ventilation Inlet and Outlet Arrangement on Heat Concentration in a Ship Engine Room." Engineering, Technology & Applied Science Research 7, no. 5 (2017): 1996–2004. https://doi.org/10.5281/zenodo.1037210.

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Τhe ventilation in the ship engine rooms is an essential issue concerning finest performance of engines and diesel generators as well as electric motors. The present study has aimed at the analysis of temperature distribution inside the ship main engine room. In the same way, attempts have been made to identify those points with considerable thermal concentration in main engine room space, so that proper ventilation systems could be engineered and utilized and favorable thermal conditions could be realized. The CFD approach has been utilized in order to analyze impact of the designed ventilati

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3

Mihai, Victor, Liliana Rusu, and Adrian Presura. "Ventilation of engine rooms in diesel engines ships." Analele Universităţii "Dunărea de Jos" din Galaţi. Fascicula XI, Construcţii navale/ Annals of "Dunărea de Jos" of Galati, Fascicle XI, Shipbuilding 43 (November 15, 2020): 69–78. http://dx.doi.org/10.35219/annugalshipbuilding.2020.43.09.

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"Engines room are equipped with a ventilation system which should provide fresh air for combustion and for removing the heat radiated by main engines, auxiliary engines, boilers, generators and other hot equipment installed in compartment. The paper presents the main requirements, recommendations and challenges regarding designing and construction of the ventilation system. The principal design aspects highlighted in this material are related to reducing the pressure drop across the distribution system to reduce the energy used by the fan to blow the air inside the room and to identify the bes

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Nugroho, Anton, Wawan Aries Widodo, and Is Bunyamin Suryo. "Numerical study of engine room air ventilation systems for landing ship tank class warships in supporting crew comfort and safety." IOP Conference Series: Earth and Environmental Science 1423, no. 1 (2024): 012004. https://doi.org/10.1088/1755-1315/1423/1/012004.

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Abstract The air ventilation system is one of the supporting systems in the machinery of a warship. High temperatures in the engine room can lead to an unpleasant atmosphere and, in particular, to heat stress for the operating personnel. This heat stress was caused by the design of the engine room ventilation system not meeting the requirements due to the supply and exhaust fan. Under the given conditions, the air temperature reached 50 °C, higher than the standard 45 °C. Therefore, it was necessary to conduct a thermal analysis and redesign the ventilation system using a 3D CFD (Computational

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5

Zhao, Yuechao, Haobo Zhao, Zeya Miao, Dihao Ai, and Qifei Wang. "A Numerical Study on the Smoke Dispersion and Temperature Distribution of a Ship Engine Room Fire Based on OpenFOAM." Sustainability 15, no. 20 (2023): 15093. http://dx.doi.org/10.3390/su152015093.

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To further study the smoke dispersion and the temperature distribution in ship engine room fires, the fire dynamics solver buoyantReactingFOAM in the software OpenFOAM-10 is used to conduct a numerical simulation study on a pool fire caused by fuel oil leakage in a ship engine room. The applicability of this solver in simulating ship-engine-room-scale fires is validated by comparing it with experimental data. The impact of the mechanical ventilation, fire area, and fire position on the smoke dispersion and the temperature distribution in the ship engine room during the fire are considered in t

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Zhao, Yuechao, Zeya Miao, Yuan Gao, Qifei Wang, Dihao Ai, and Yubo Li. "Research on the Propagation Law of Explosion Shock Waves in Ship Engine Rooms Based on OpenFOAM." Fire 8, no. 3 (2025): 115. https://doi.org/10.3390/fire8030115.

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To investigate the propagation of explosion shock waves within a ship’s engine room, a two-story engine room of a cargo ship was selected as the research object. The BlastFOAM solver in OpenFOAM-9 software was utilized to conduct numerical simulations of the explosion dynamics in the engine room. The results demonstrate that the explosion impact force escalates with the quantity of explosives. Following a liquefied natural gas (LNG) explosion, the shock waves exerted on the ventilation duct and control room are significantly stronger in terms of maximum pressure and intensity compared with tho

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Kusuma, C., M. A. Widayat, W. Kusdiana, R. A T Ika, and A. Baidowi. "Redesign the air ventilation system in the engine room 48 meter patrol ship." IOP Conference Series: Earth and Environmental Science 1423, no. 1 (2024): 012038. https://doi.org/10.1088/1755-1315/1423/1/012038.

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Abstract The patrol boat with a Length Overall of 48 meters has the main function as a coastal patrol boat. The air ventilation system installed on patrol ships currently reaches an average temperature of 320°K ∼ 345°K with an average speed of 0 ∼ 2.5 m/s and the airflow is not distributed throughout the engine room. The temperature in the engine room is above the ISO 8861:1998 standard where the maximum temperature is 318.15 K (45°C). Based on calculations according to ISO 8861, the total air capacity requirement is 10.806 m3s−1 or 38.901 m3/hour, while the currently installed air blower capa

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Orosa, José A., Ángel M. Costa, and José A. Pérez. "A new modelling procedure of the engine room ventilation system for work risk prevention and energy saving." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 231, no. 4 (2017): 863–70. http://dx.doi.org/10.1177/1475090216687148.

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Maritime transport is one of the primary international objectives for energy saving and pollution reduction, in agreement with the International Maritime Organization. Within the most interesting energy-saving topics, the ventilation system of the engine room must be highlighted, which represents about 5% of the nominal power of a modern ship. Nevertheless, its energetic optimization is not simple and must consider also work risk criteria, since the engine room is the hottest and, in consequence, one of the hazardous places in the ship. In this research, a complete three-dimensional computatio

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9

İNAL, Ömer Berkehan, and Gazi KOÇAK. "A Case Study on the Variable Frequency Drive for Ship Engine Room Ventilation." Marine Science and Technology Bulletin 12, no. 3 (2023): 252–58. http://dx.doi.org/10.33714/masteb.1299692.

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Increasing ship energy efficiency is essential to reducing fuel consumption and ship-based harmful emissions. In a ship’s engine room, there are a lot of electric motors, and their energy consumption is remarkable. The effective operation of these electric motors becomes significant when taking into account ship energy efficiency with regard to the effects on the environment and climate change. The electrical, mechanical, and operational efficiencies of electric motors can be improved with a variable frequency drive. In order to improve the ship’s overall energy efficiency, the electric motors

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10

Li, Chenfeng, Jiayin Mao, Zixiong Kang, Shengzhu Zhao, and Huilong Ren. "Influence of Firefighting Intervention on Fire Spread Characteristics in Ship Engine Room." Journal of Marine Science and Engineering 11, no. 4 (2023): 877. http://dx.doi.org/10.3390/jmse11040877.

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The purpose of this paper is to investigate and evaluate the ship engine room fire spreading characteristics based on the effect of firefighting interventions. The large eddy simulation (LES) and theoretical models are employed to simulate a fire scene in the engine room. The fire spreading characteristics and the mechanism of the use of a fine water mist are obtained by varying the ventilation conditions and parameters of the water sprinkler. The results show that the reason why a pool fire can be more easily extinguished as the spray speed increases is because the water mist with a higher sp

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Orosa, José A., Guadalupe Iradi, and Armando C. Oliveira. "Thermal Comfort Conditions in Ships." Journal of Ship Production and Design 26, no. 01 (2010): 60–65. http://dx.doi.org/10.5957/jspd.2010.26.1.60.

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Ship indoor environments are related with comfort conditions and health risk problems. As a consequence, to obtain an adequate heating, ventilation, and air conditioning (HVAC) system, a redesign of the engine control room must be made. To answer this problem, an analysis of real thermal comfort conditions was carried out and a new air conditioning procedure is proposed. From the obtained results it can be concluded that comfort conditions in the bridge and dining room are close to neutral, while the most extreme conditions have been found in the engine room.

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Salamonowicz, Zdzislaw, Malgorzata Majder-Lopatka, Anna Dmochowska, Wioletta Rogula-Kozlowska, Aleksandra Piechota-Polanczyk, and Andrzej Polanczyk. "Ammonia Dispersion in the Closed Space of an Ammonia Engine Room with Forced Ventilation in an Industrial Plant." Atmosphere 13, no. 7 (2022): 1062. http://dx.doi.org/10.3390/atmos13071062.

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Air pollution is a global problem that is responsible for more than four million premature deaths each year. Air exchange in ammonia engine rooms is a priority for normal operating conditions, as well as in the event of an emergency release. A numerical approach with the use of computational fluid dynamics techniques can provide detailed data, such as spatial gas dispersion. Therefore, the objective of this study was to prepare a mathematical tool for the assessment of ammonia distribution in an engine room equipped with forced ventilation as a prediction tool for dangerous industrial setup wo

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O N, Volintiru. "Contributions to the study of functional parameters in exploitation of the heat, ventilation and air conditioning system for special ships." Scientific Bulletin of Naval Academy XIX, no. 1 (2018): 256–61. http://dx.doi.org/10.21279/1454-864x-18-i1-039.

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Under normal operating conditions, as a result of heat gains onboard ships from engine rooms and crew, the increase in humidity as well as due to the various releases of gases from onboard systems, room air deteriorates, requiring replacement and its processing through the HVAC (heat, ventilation and air conditioning) system. Another feature of the HVAC system for special ships is operating under heavy conditions such as CBRN tightness where operating parameters record extreme values in cooling engine rooms. In the paper, I will present contributions to the study of functional parameters in ex

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14

Mihai, Victor, and Liliana Rusu. "Improving the Ventilation of Machinery Spaces with Direct Adiabatic Cooling System." Inventions 7, no. 3 (2022): 78. http://dx.doi.org/10.3390/inventions7030078.

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Machinery spaces are provided with ventilation systems that ensure the necessary airflow for combustion and cooling. In some vessels, due to space constraints, the requested air flow for cooling cannot be achieved under extreme environmental conditions, and the engine load will need to be reduced. On the other hand, the outside air temperature can increase over 35 °C in some places, and the efficiency of the ventilation will be reduced. In these cases, other solutions for cooling the engine room should be analyzed. In this paper, the environmental conditions in the Romanian Danube area are ana

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Bistrović, Miroslav, Jasmin Čelić, and Domagoj Komorčec. "Computer Vision Application for Early Stage Smoke Detection on Ships." Journal of Maritime & Transportation Science 52, no. 1 (2016): 63–80. http://dx.doi.org/10.18048/2016.52.04.

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Nowadays, ship’s engine room is fire protected by automatic fire fighting systems, usually controlled from a place located outside the engine room. In order to activate the water mist extinguishing system automatically, at least two different fire detectors have to be activated. One of these detectors is a flame detector that is not hampered by various air flows caused by ventilation or draft and is rapidly activated and the other is smoke detector which is hampered by these flows causing its activation to be delayed. As a consequence, the automatic water mist extinguishing system is also dela

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16

Mihai, Victor, Liliana Rusu, and Adrian Presură. "Main requirements for ventilation of different rooms on the ships." Analele Universităţii "Dunărea de Jos" din Galaţi Fascicula XI Construcţii navale/ Annals of "Dunărea de Jos" of Galati Fascicle XI Shipbuilding 45 (December 3, 2022): 21–30. http://dx.doi.org/10.35219/annugalshipbuilding/2022.45.03.

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The ventilation system is vital for the good functionality of the vessels and its purpose is to ensure the requested environmental condition for equipment and people. In addition, the ventilation system is assuring the safety of the vessels by reducing the concentration of the flammable and toxic gases which can escape from the equipment, systems, and storage tanks. Also, in case of fire, the ventilation system must be able to extract the smoke from engine rooms and public atriums spaces in passenger's vessels. The paper is a short over-view of the main requirements and recommendations for ven

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17

М.А., Razakov. "Features of Providing Air Temperature and Humidity Parameters in the Engine Room Working Area at Sewage Pumping Stations." Russian Journal of Building Construction and Architecture, no. 4(64) (November 6, 2024): 33–42. http://dx.doi.org/10.36622/2542-0526.2024.64.4.003.

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Statement of the problem. There is an important task for engineers to improve the working conditions of workers in industrial facilities. The waste water system includes a large number of structures with different temperature and humidity microclimate characteristics. The possibility has been discussed to improve these characteristics by redistributing air flows in the engine room of a city sewage pumping station with PLI panel. Results. There are the results of the temperature and humidity microclimate parameters research in the working area of the engine room at a high-voltage sewage pumping

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18

He, Meikui, Qian Liu, Ting Gui, and Zhen Fang. "Design and Research of Marine Nuclear Power Platform Engine Room Ventilation System." IOP Conference Series: Earth and Environmental Science 474 (May 15, 2020): 052052. http://dx.doi.org/10.1088/1755-1315/474/5/052052.

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19

Ling, Sun. "Study on the Design of the Ventilation of Ship Engine Room Control System." Advanced Materials Research 1061-1062 (December 2014): 908–11. http://dx.doi.org/10.4028/www.scientific.net/amr.1061-1062.908.

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The control system of ventilation to engine room which based on Profibus-DP field bus and Siemens S7-300PLC is introduced in this paper. This paper also describes how to construct the control system by applying the Profibus-DP and S7-300 and the development of the supervision and control system using Wincc. The hardware and software design and system program are also presented in this paper. It has some application value.

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20

Jaquith, Peter E., Richard M. Burns, Steve E. Dunbarr, et al. "Modular Engine Room Design and Construction for the Strategic Sealift Ships." Journal of Ship Production 12, no. 04 (1996): 230–43. http://dx.doi.org/10.5957/jsp.1996.12.4.230.

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During the contract design phase of the Strategic Sealift New Construction Program at National Steel and Shipbuilding Company (NASSCO), an innovative Design and Build Strategy was developed to reduce the construction time and cost associated with complex engine rooms. A Concurrent Engineering team was assembled to develop the strategy, and to focus design, planning, material, and production efforts to achieve a highly modular design which allows the installation of the majority of outfit systems and equipment at the more effective Ground Outfit versus Onboard Stage. Due to facility and crane l

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Wang, Kan, Yang Ming, Xiaolei Liu, Hao Wang, and Yuru He. "Effect of Lateral Airflow on Initial HSI and Flame Behavior of Marine Fuel in a Ship Engine Room: Experiment and Analysis." Journal of Marine Science and Engineering 12, no. 1 (2023): 5. http://dx.doi.org/10.3390/jmse12010005.

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The flame behavior of engine fires, such as those caused by leaked fuel coming into contact with an ignition source, is significant in practical applications, where flame detection is used to minimize the damage of the attendant ship fire safety problem. In this work, the flame behavior of hot-surface ignition (HSI) under crossflow was studied, with a particular focus on the difference in lateral airflow velocities for HSI-driven flame deviations at the windward and leeward sides of a ship engine room; a problem such as this has not previously been quantified. Full-scale experiments were condu

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22

Wu, Xiaowei, Yi Zhang, Jia Jia, Xiao Chen, Wenbing Yao, and Shouxiang Lu. "Experimental and Theoretical Analysis of the Smoke Layer Height in the Engine Room under the Forced Air Condition." Fire 6, no. 1 (2023): 16. http://dx.doi.org/10.3390/fire6010016.

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The smoke layer height in the ship engine room under forced ventilation has been experimental and theoretical investigated in this work. A series of test were carried out in a scaled engine cabin experimental platform to obtain the influence of air supply volume and air inlet height on the burning parameters, including the mass loss rate, smoke temperature, etc. The research results show that under the experimental conditions, the fire source mass loss rate increases exponentially, and smoke layer height also increases gradually with the increase in the air supply volume. The empirical formula

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23

Liu, Xinyu, Guogang Yang, Baixun Sun, Jihui Li, and Yinhui Sun. "Numerical Simulation Study on the Dynamic Diffusion Characteristics of Ammonia Leakage in Ship Engine Room." Sustainability 17, no. 9 (2025): 3826. https://doi.org/10.3390/su17093826.

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This study established a numerical model for ammonia leakage and diffusion in confined ship engine room spaces and validated its effectiveness through existing experiments. The research revealed the evolution patterns of ammonia cloud dispersion under various working conditions. Multi-parameter coupling analysis demonstrated that the combined effect of leakage source location and obstacle distribution alters the spatial configuration of gas clouds. When leakage jets directly impact obstacles, the resulting vortex structures maximize the coverage area of high-concentration ammonia near the grou

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Wang, Kan, Zun Zhou, Yang Ming, and Xinming Qian. "Research on hot surface ignition characteristics of leaking fuel in ship engine room." Thermal Science, no. 00 (2022): 206. http://dx.doi.org/10.2298/tsci220912206w.

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Hot surface ignition (HSI) is crucial in safety management of maritime industry. In present work, three-dimensional numerical simulations using FLUENT of ship engine room (SER) model and ignition process of a leaking marine fuel by a high-temperature hot surface are carried out. The thermal mechanism and HSI characteristics are revealed. Meanwhile, effect of ventilation and wettability on influencing leaking fuel HSI process in SER are further analyzed. HSI process of evaporated fuel indicates different characteristics, such as ignition delay, stable combustion and extinguishing. The results s

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25

Rinanda, M. Rifky Aditya, Makomulamin Makomulamin, and Ahmad Satria Efendi. "EVALUASI SISTEM VENTILASI DAN ALIRAN UDARA TERHADAP KENYAMANAN TERMAL DI RUANG MESIN PKS SEI GALUH TAHUN 2020." Media Kesmas (Public Health Media) 1, no. 3 (2021): 751–63. http://dx.doi.org/10.25311/kesmas.vol1.iss3.122.

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Aspek kenyamanan termal dibutuhkan dalam menunjang produktivitas saat bekerja. Penelitian ini berfokus pada ruangan mesin Pabrik Kelapa Sawit (PKS) Sei Galuh yang terletak di Kecamatan Tapung Kabupaten Kampar. Tujuan dari penelitian ini adalah untuk mengetahui kondisi ventilasi dan nilai kenyamanan termal berdasarkan standar ASHRAE dalam skala PMV (Predicted Mean Vote). Metode penelitian menggunakan metode kualitatif. Pengumpulan data dilakukan dengan wawancara dan pengukuran terhadap ukuran ventilasi, suhu udara, kecepatan udara, kelembaban udara yang dilakukan pada siang hari dan kondisi cua

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26

Tamsi, Nur Sarah Fatihah, Maryam Zahaba, Amirul Faiz Kamaruddin, Norhidayah Abdull, Arman Ariffin, and Mohammad Naufal Mohammad Sharif. "Concentration of Indoor Air Chemical Parameters at Different Ship Conditions and Engine Sequences." ASM Science Journal 18 (November 16, 2023): 1–7. http://dx.doi.org/10.32802/asmscj.2023.1015.

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Good indoor air quality (IAQ) is crucial for navy crew due to longer periods onboard, especially during pandemic. Increased frequency of the ship’s operations is required to prevent trespassing and illegal border crossings. This study aims to determine and compare the indoor air chemical parameters; carbon dioxide (CO₂), carbon monoxide (CO), and total volatile organic compounds (TVOC) at different ship conditions (alongside and sailing) and engine sequences (idling, cruising, full ahead and slowing down). The parameters were measured in four compartments, following the Industry Code of Practi

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27

Park, Sujin, Munho Kim, Jungmin Seo, and Sanghun Choi. "Numerical study on the internal ventilation of the engine room of a ship under construction." Alexandria Engineering Journal 100 (August 2024): 232–45. http://dx.doi.org/10.1016/j.aej.2024.05.031.

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Li, Na, Bin Zhang, Xiaolei Liu, Kan Wang, and Hao Wang. "Experimental Research and Numerical Analysis of Marine Oil Leakage and Accidental Ignition in Fishing Vessels." Applied Sciences 13, no. 20 (2023): 11510. http://dx.doi.org/10.3390/app132011510.

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The hazard of highly combustible marine oil leakage greatly increases fishing vessel operation risks. This research integrates an experiment to explore the coupling mechanism of a typical heated surface of an engine room as a source to ignite marine oil. A numerical model is established that depicts the dynamic process of and variations in the combined effects regarding multiple factors of oil ignition under actual experiment. The leaked marine oil is ignited with a heated surface, relevant models are applied to reproduce the results, and the influences of specific parameters of a fishing vess

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Zhao, Yuechao, Yubo Li, Weijie Li, Yuan Gao, Qifei Wang, and Dihao Ai. "Risk Analysis of Fuel Leakage and Explosion in LNG-Powered Ship Cabin Based on Computational Fluid Dynamics." Fire 8, no. 5 (2025): 192. https://doi.org/10.3390/fire8050192.

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In order to analyze the explosion risk of the engine room, this paper uses CFD software to simulate the LNG leakage process in the engine room of the ship, and uses the combustible gas cloud obtained from the leakage simulation to simulate the explosion, analyzing its combustion and explosion dynamics. On the basis of previous studies, this paper studies the coupling of leakage and explosion simulation to ensure that it conforms to the real situation. At the same time, taking explosion overpressure, explosion temperature, and the mass fraction of combustion products as the breakthrough point,

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Xie, Yingchun, Jin Qin, Jinchi Zhu, Guijie Liu, Zepeng Zheng, and Haoxun Yuan. "Experimental research on ventilation characteristics of a main engine room in a jack-up offshore platform." Applied Ocean Research 117 (December 2021): 102897. http://dx.doi.org/10.1016/j.apor.2021.102897.

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Разаков, М. А. "Features of Providing Air Temperature and Humidity Parameters in the Engine Room Working Area at Sewage Pumping Stations." НАУЧНЫЙ ЖУРНАЛ СТРОИТЕЛЬСТВА И АРХИТЕКТУРЫ, no. 2(74) (June 14, 2024): 28–39. http://dx.doi.org/10.36622/2541-7592.2024.74.2.002.

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Постановка задачи. Система водоотведения имеет в своем составе большое количество сооружений с различными температурно-влажностными параметрами микроклимата. В данной работе рассмотрен способ улучшения этих параметров за счет перераспределения воздушных потоков в помещении машинного зала городской канализационной насосной станции с помощью панели ПЛИ. Результаты. Представлены результаты исследования температурно-влажностных параметров микроклимата в рабочей зоне машинного зала высоковольтной канализационной насосной станции, расположенной в г. Москве. Доказана возможность использования охлажде

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Lee, Heow Pueh. "Reconfigurable sonic crystals with built-in Helmholtz's resonators for noise mitigation." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 7 (2023): 1102–6. http://dx.doi.org/10.3397/in_2023_0166.

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Natural ventilation is desirable for improving the air quality against airborne transmission of viruses. On the other hand, a good noise barrier would not have any opening for effective noise mitigation as noise can enter the space with the natural ventilation. The use of noise shields and noise barriers for shielding a piece of noisy machine may also drastically cut down the natural ventilation which will be required for preventing heat built-up in the engine room. In this paper, acoustic metamaterials in the form of sonic crystals with built-in Helmholtz's resonators are designed for targeti

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刘, 昕梓. "Study on Flame Shape Characteristics of Small Scale Oil Pool in Complex Ventilation Environment of Ship Engine Room." Journal of Security and Safety Technology 10, no. 01 (2022): 27–35. http://dx.doi.org/10.12677/jsst.2022.101004.

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Lan, Qingyuan, Fenghui Han, Yuxiang Liu, Wenhua Li, and Zhe Wang. "Effects of ventilation system design on flame behavior and smoke characteristics for mitigating marine engine room fire hazards." Ocean Engineering 281 (August 2023): 114890. http://dx.doi.org/10.1016/j.oceaneng.2023.114890.

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Duong, Phan Anh, Jin-Woo Bae, Changmin Lee, Dong Hak Yang, and Hokeun Kang. "Numerical Study on Ammonia Dispersion and Explosion Characteristics in Confined Space of Marine Fuel Preparation Room." Journal of Marine Science and Engineering 13, no. 7 (2025): 1235. https://doi.org/10.3390/jmse13071235.

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Ammonia is emerging as a promising zero-carbon marine fuel due to its high hydrogen density, low storage pressure, and long-term stability, making it well-suited for supporting sustainable maritime energy systems. However, its adoption introduces serious safety challenges, as its toxic, flammable, and corrosive properties pose greater risks than many other alternative fuels, necessitating rigorous risk assessment and safety management. This study presents a comprehensive investigation of potential ammonia leakage scenarios that may arise during the fuel gas supply process within confined compa

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36

Giannoutsos, Spyridon V., and Stefanos N. Manias. "Improving Engine Room Ventilation Systems: A Data-Driven Process Controller for Energy-Efficient, Variable-Speed Fan Operation in Marine Vessels." IEEE Industry Applications Magazine 22, no. 6 (2016): 66–81. http://dx.doi.org/10.1109/mias.2015.2459088.

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Asensi, Ignacio, André Rummler, Carlos Solans, Gustavo Andres Uribe, and Jose Torres. "Understanding ATLAS infrastructure behaviour with an Expert System." EPJ Web of Conferences 251 (2021): 04003. http://dx.doi.org/10.1051/epjconf/202125104003.

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The ATLAS detector requires a huge infrastructure consisting of numerous interconnected systems forming a complex mesh which undergoes constant maintenance and upgrades. The ATLAS Technical Coordination Expert System provides, by the means of a user interface, a quick and deep understanding of the infrastructure, which helps to plan interventions by foreseeing unexpected consequences, and to understand complex events when time is crucial in the ATLAS control room. It is an object-oriented expert system based on the knowledge composed of inference rules and information from diverse domains such

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Zhao, Yuechao, Zeya Miao, Shouye Wang, and Dihao Ai. "Numerical Simulation Study on the Response of Ship Engine Room Structure Under Fire Based on Thermo-Mechanical Coupling Model." Fire 7, no. 12 (2024): 480. https://doi.org/10.3390/fire7120480.

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Ship structures may collapse or be severely deformed during a fire. To precisely assess the post-fire structural integrity of ships, in this study, a thermal–mechanical coupling data interface was created, employing a significant eddy simulation algorithm for fire dynamics and a technique to analyze the structural thermal–mechanical coupling reaction. PyroSim was utilized to build a fire scenario, exporting 3D data through the device’s own program, and then the ANSYS thermal–mechanical coupling model was employed to study the spatial temperature distribution under fire-induced conditions. Data

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Muhammad Fatah, Fadel, and Ramon Trisno. "Efisiensi Chiller Gedung Produksi Cat Pt. X." ETNIK: Jurnal Ekonomi dan Teknik 2, no. 9 (2023): 834–46. http://dx.doi.org/10.54543/etnik.v2i9.249.

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Refrigeration machines and air conditioning machines are an inseparable part of human life in improving the quality of activities. using air conditioning(Air Conditioning). Refrigeration systems in large buildings or those used to cool production machines in the industrial world require energy efficiency. This study uses the CLTD methodCooling Load Temperatur Difference Calculation of heat from each internal and external load of the room refers to the standard ASHRAE Cooling Load Calculation. With the calculation of heat on walls, roofs and floors, it is included in the calculation of external

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STAN, Liviu-Constantin, and Catalin FAITAR. ""PERFORMANCE ANALYSIS OF INERT GAS PLANT WITH SCRUBBER USING ANSYS FOR A VLCC SHIP"." Journal of Marine Technology and Environment, no. 1 (April 1, 2023): 54–61. http://dx.doi.org/10.53464/jmte.01.2023.09.

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"Through the 1978 SOLAS Protocol and then through the introduction of amendments from 1981 and 1983, new specifications are brought regarding the design, operation, maintenance, verification of inert gas systems intended for both oil tanks and bulk chemical tanks, and, in general, the systems of safety on board ships carrying dangerous goods. The inerting method using a gas system with generator and scrubber involves a continuous and very efficient process, with a low level of supervision and maintenance, that is why this type of installation was chosen in this study. Installations with a scru

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Machinery Plant Committee Group III. "Instruction of Engine Room Ventilating System." JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN 20, no. 8 (1985): 501–6. http://dx.doi.org/10.5988/jime1966.20.501.

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Volintiru, O., A. Epikhin, I. Scurtu, D. Mărășescu, I. Florin, and G. Bălan. "ASPECTS OF VENTILATION PRINCIPLES IN SHIPS MACHINERY ROOMS." Operation of Maritime Transport, no. 4 (March 9, 2023): 178–81. http://dx.doi.org/10.34046/aumsuomt105/33.

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are designed to circulate the air in the rooms on board, usually without heat treatment or humidity. Ventilation systems consist of machines that provide the energy for air circulation (fans), main ducts connected to the suction and exhaust of the fans, branches and distribution components. For machinery spaces related to ships, ventilation systems are vital for the proper functioning of thermal engines used as propulsion systems. Gas turbines are heat engines used as propulsion systems usually for special ships.

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Fesina, Mikhail, Igor Deryabin, and Gorina Larisa. "ON THE TECHNIQUE OF MISMATCHING THE RESONANT INTERACTIONS OF THE SOUND FIELDS CAUSED BY TECHNICAL OBJECTS WITH THEIR OWN ACOUSTIC MODES IN THE AIR VOLUME OF ROOMS." Akustika 32 (March 1, 2019): 24–29. http://dx.doi.org/10.36336/akustika20193224.

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Noise generating production equipment, which is located in technical rooms, first of all, is represented as power systems (pump and compressor stations, internal combustion engines, diesel-generator units, power electric transformers and electric engines, ventilation systems and air conditioning systems). As a rule, these systems operate on nominal permanent speed operation conditions ns. In their wideband sound radiation spectrum, there are found dominant discrete components which are concentrated in audio spectrum fms = 50…500 Hz, and which are characterized by corresponding sound wavelength

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Nematollahi Sarvestani, Amir, Pierpaolo Oreste, and Sandro Gennaro. "Improving environmental conditions of a Room and Pillar underground quarry using numerical modelling of the ventilation system." Mining Technology 131, no. 2 (2022): 80–89. http://dx.doi.org/10.1080/25726668.2021.2007335.

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Natural ventilation can play a significant role, which requires careful evaluation. It is necessary to adopt numerical calculation methods to study the ventilation circuit. This paper illustrates a numerical study of an underground gypsum quarry in Italy using the Ventsim computer program. Through this study, it was possible to determine the improvement interventions necessary to optimize the airflow that reaches the active sites of the mine, avoiding the risk of air recirculation in the deepest zones. A detailed analysis made it possible to detect how the planned interventions were also able

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Fobiri, G, Nana-Addy E, Adjei O.K, and Morgan, D. "Critical Factors Contributing to Poor Natural Ventilation of Residential Buildings." International Journal of Advanced Engineering and Management Research 08, no. 03 (2023): 65–84. http://dx.doi.org/10.51505/ijaemr.2023.8306.

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The air tightness of buildings has the greatest potential for energy savings. Reduced fresh air intake raises concerns about natural ventilation systems and the need to provide users with a comfortable indoor climate. The pace at which heat is expelled from a building's interior surfaces increases with vent size, putting residents' health at risk and causing discomfort. The study aimed to evaluate critical factors that contribute to poor natural ventilation in residential buildings, and its associated effects. A quantitative research approach was adopted using purposive sampling for data colle

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Li, Qingji, Dapeng Zhang, Jianwei Ji, Zhouping Sun, and Yonggang Wang. "Modeling of Natural Ventilation Using a Hierarchical Fuzzy Control System for a New Energy-Saving Solar Greenhouse." Applied Engineering in Agriculture 34, no. 6 (2018): 953–62. http://dx.doi.org/10.13031/aea.12757.

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Abstract. Natural ventilation as part of a greenhouse environment control system can save energy, reduce pollution, and cut the costs of production. Many studies have used the energy balance method to model greenhouse environments and calculate the rates of ventilation needed to control them. However, the efficacy of this method is influenced by many factors. There are often many parameters in the energy balance model, related to the greenhouse structure, crop growth, and climate. Thus, the effectiveness and applicability of greenhouse ventilation systems based on energy balance can be comprom

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Chohan, Afaq H., Jihad Awad, Muhammad A. Ismail, and Mohammad S. Arar. "Integrating Technology and Heritage Design for Climate Resilient Courtyard House in Arid Region." Civil Engineering Journal 10, no. 3 (2024): 928–52. http://dx.doi.org/10.28991/cej-2024-010-03-018.

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This research has investigated the sustainability and climate resilience of courtyard houses of adobe architecture in the UAE. It analyzed design effectiveness in terms of power consumption, CO2 emissions, thermal comfort, and daylight use, employing simulations to assess building structures and construction systems. Adopting a three-phase mixed-methods approach, the study began with a literature review on courtyard house design, construction, and environmental performance, emphasizing sustainable design and passive ventilation. The second phase involved a case study of a UAE courtyard house (

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Овчинников, А. С., М. Н. Жерлыкина, Н. В. Колосова, and К. В. Гармонов. "FIRE AND EXPLOSION SAFETY PREDICTION OF VENTILATION SYSTEMS FOR INDUSTRIAL PREMISES WITH EXCESS HEAT." Housing and utilities infrastructure, no. 3(26) (October 13, 2023): 59–68. http://dx.doi.org/10.36622/vstu.2023.26.3.006.

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Рассмотрены вопросы пожаровзрывобезопасности в системах вентиляции производственных помещений с утилизацией теплоты уходящего воздуха. В статье рассматривается методика прогнозирования взрывоопасной ситуации, возникающей при движении парагазовоздушной среды по элементам промышленной системы вентиляции. Исследования выполнены на примере производственно-ремонтной базы со стендом двигателей внутреннего сгорания, работающего на дизельном топливе. Выполнена количественная оценка поступления вредных веществ в объем производственного помещения в ходе технологического процесса. Подтверждено соблюдение

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ENOKI, Shinya, Soichiro IKEGAMI, and Shuichi NAKAGAWA. "G-22 Study on quietness and thermal management of industrial vehicles : Considerations on thermal equilibrium in some ventilation designs of engine rooms." Proceedings of Conference of Kyushu Branch 2016.69 (2016): 301–2. http://dx.doi.org/10.1299/jsmekyushu.2016.69.301.

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Jankovic, Ljubomir. "Experiments with Self-Organised Simulation of Movement of Infectious Aerosols in Buildings." Sustainability 12, no. 12 (2020): 5204. http://dx.doi.org/10.3390/su12125204.

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The ultimate aim of sustainability in buildings gained an additional new dimension as the start of the year 2020 saw a rapid worldwide spread of the infectious disease caused by a coronavirus named COVID-19. There is evidence that, in addition to person to person contact, the disease transmission occurs through airborne droplets/aerosols generated by breathing, speaking, coughing or sneezing. For that reason, building heating, ventilating and air conditioning systems can play an important role, as they may both contribute as well as reduce the transmission risk. However, there is insufficient

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