Assessing the suitability of ship design for human factors issues associated with evacuation and normal operations

Evaluating ship layout for human factors (HF) issues using simulation software such as maritimeEXODUS can be a long and complex process. The analysis requires the identification of relevant evaluation scenarios; encompassing evacuation and normal operations; the development of appropriate measures which can be used to gauge the performance of crew and vessel and finally; the interpretation of considerable simulation data. In this paper we present a systematic and transparent methodology for assessing the HF performance of ship design which is both discriminating and diagnostic. The methodology is demonstrated using two variants of a hypothetical naval ship

Optimasi Rute Trafik Data Dan Destinasi Pada Jaringan Bergerak Maritim Menggunakan Algoritma Blind Search Dan Swarm Intelligence

Maraknya illegal fishing di perairan Indonesia sangat berpengaruh pada keamanan negara dan sumber daya laut kita. Mengacu pada data dari Kementerian Kelautan dan Perikanan tahun 2012 bahwa jumlah kapal di bawah 30 GT mendominasi 98% dari keseluruhan jumlah kapal tangkap ikan di Indonesia. Kapal-kapal tangkap ini tidak memiliki kewajiban melengkapi dengan peralatan sistem pemantauan berbasis satelit. Sedangkan kapal asing dengan bobot kecil 20- 30 GT sudah dilengkapi sistem ini, sehingga mereka dengan mudah mendapatkan informasi tentang lokasi penangkapan ikan (rumpon, fish aggreagting device (FAD)). Oleh karena itu, khusus kapal tangkap ikan < 30 GT, perlu mendapatkan perhatian, khususnya untuk sharing informasi antar kapal dan destinasi menuju FAD. Optimasi rute trafik data dan destinasi FAD perlu dilakukan untuk memudahkan kapal menuju FAD dengan mempertimbangkan jarak dan kondisi cuaca dan tinggi gelombang di FAD. Metode pendekatan optimasi metode Swarm Intelligence (SI) banyak ditawarkan untuk menyelesaikan permasalahan tersebut. Metode optimasi seperti Gossip dan Genetic algorithm (GA) telah banyak digunakan untuk mendapatkan solusi terbaik. Usulan optimasi rute trafik data Breadth fixed gossip (BFG) dan PSO untuk jaringan dinamis ditujukan untuk menentukan rute terpilih berdasarkan pertimbangan jarak dan konektifitas dengan kapal lainnya. Algoritma optimasi rute trafik data BFG merupakan hybrid algoritma breadth first search, model fixed radius dan Gossip. Sedangkan optimasi rute destinasi FAD diusulkan menggunakan algoritma firefly dan GA. Dengan menggabungkan kedua algoritma optimasi rute, maka dibangun optimasi rute trafik data dan destinasi lokasi tangkap ikan sekaligus yaitu: BFG-G dan PSO-G. Pengujian berupa simulasi dilakukan untuk mengetahui tingkat keberhasilan menentukan rute trafik data dan lokasi FAD. Sedangkan pengujian komputasi didasarkan pada kompleksitas waktu, keakurasian, kecepatan konvergen dan jumlah relai yang diperlukan untuk mencapai kapal tujuan. ================================================================================================================== The rise of illegal fishing in Indonesian ocean is very influential on the country security and marine resources. Referring to data from the Ministry of Marine Affairs and Fisheries in 2012 that the number of ships under 30 GT dominates 98% of the total number of fishing vessels in Indonesia. These fishing vessels have no obligation to equip with the satellite-based monitoring system. While foreign ships with a small weight of 20-30 GT already equipped this system, hence they easily get information about the location of fishing (rumpon, fish aggregating device (FAD)). Therefore, the fishing vessels <30 GT, need to get attention, especially for sharing information between ships and destinations to FAD. Optimization of data traffic routes and FAD destinations needs to be done to facilitate the ship to FAD by considering the distance and weather conditions and wave height in FAD. An approach optimization method of Swarm Intelligence (SI) is widely offered to solve the problem. Optimization methods such as Gossip and Genetic algorithm (GA) have been widely used to get the best solution. The proposed optimization of Breadth fixed gossip (BFG) data traffic route and PSO for a dynamic network are intended to determine the selected route based on consideration of distance and connectivity with other vessels. BFG traffic route optimization algorithm is a hybrid algorithm of breadth first search, fixed radius model, and Gossip. While FAD route destination optimization is proposed using firefly and GA algorithm. By combining the two route optimization algorithms, the optimization of data traffic and FAD routes are BFGG and PSO-G. The simulations are performed to determine the success rate determine the route of data traffic and FAD location. While computational testing is based on the complexity of time, accuracy, convergent speed and the number of relays required to reach the destination ship in determining data traffic

Reducing Shipping Carbon Emissions Under Real Operative Conditions: A Study Of Alternative Marine Waste Heat Recovery Systems Based On The Organic Rankine Cycle

The biggest source of energy loss in shipping is found in the propulsion system. This study focuses on analysing, and working with, the concept of heat management for waste heat energy from the exhaust gas and scavenge air. Using waste heat recovery systems (WHRS) to make shipping more efficient represent a good area of opportunity. On board ships, a water-based Rankine cycle (RC) is typically installed; this has the task of providing steam and power. This work explores alternative waste heat technologies to assess the development and suitability, but also to find better solutions to the traditional RC. Different models coupled with advance optimisation processes were created to understand the marine WHRS. The results show that WHRS are sensitive to environmental and operational factors which must be considered at design stage. While water offers the possibility of producing both steam and power; organic Rankine cycles (ORC) produce larger power outputs at temperatures between 90˚C and 230˚C which translate to lower CO2 emissions. Organic WHRS will play an important role in the future as regulations push for tighter emission controls, and waste energy availability for power production reduces due to an increase in prime mover efficiency and waste heat utilisation for other processes (e.g. ballast treatment). The ORC technology can be applied to any kind of vessel type and size, keeping in mind that the ORC benefits depend on the waste heat temperature and availability, the ship’s heat requirements and operational profile. It is also then important to bear in mind some of the drawbacks, such as larger mass flow rates and flammability of some of the organic fluids studied which will introduce additional safety equipment and costs

Safety and Reliability - Safe Societies in a Changing World

The contributions cover a wide range of methodologies and application areas for safety and reliability that contribute to safe societies in a changing world. These methodologies and applications include: - foundations of risk and reliability assessment and management - mathematical methods in reliability and safety - risk assessment - risk management - system reliability - uncertainty analysis - digitalization and big data - prognostics and system health management - occupational safety - accident and incident modeling - maintenance modeling and applications - simulation for safety and reliability analysis - dynamic risk and barrier management - organizational factors and safety culture - human factors and human reliability - resilience engineering - structural reliability - natural hazards - security - economic analysis in risk managemen

SPATIAL TRANSFORMATION PATTERN DUE TO COMMERCIAL ACTIVITY IN KAMPONG HOUSE

ABSTRACT Kampung houses are houses in kampung area of the city. Kampung House oftenly transformed into others use as urban dynamics. One of the transfomation is related to the commercial activities addition by the house owner. It make house with full private space become into mixused house with more public spaces or completely changed into full public commercial building. This study investigate the spatial transformation pattern of the kampung houses due to their commercial activities addition. Site observations, interviews and questionnaires were performed to study the spatial transformation. This study found that in kampung houses, the spatial transformation pattern was depend on type of commercial activities and owner perceptions, and there are several steps of the spatial transformation related the commercial activity addition. Keywords: spatial transformation pattern; commercial activity; owner perception, kampung house; adaptabilit