Thermal design and analysis of an organic rankine cycle system utilizing the main engine and cargo oil pump turbine based waste heats in a large tanker ship

Konur, Olgun; Yüksel, Onur; Korkmaz, S. Aykut; Çolpan, C. Özgür; Saatçıoğlu, Ömür Yaşar; Muslu, Ilker

doi:10.1016/j.jclepro.2022.133230

Cited by 34 publications

(11 citation statements)

References 25 publications

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“…However, the energy demand varies seasonally (more energy is used in winter) and depending on the ship's speed, some of the waste heat energy could be diverted to a vertical farm to provide fresh produce for passengers at sea. There has been more recent research into heat recovery methods of cargo ships than cruise ships [153,154], but many of the heat sources are very similar. For cargo ships, the cargo being carried is likely to be more economical than vertical farming; however, there could be a small vertical farm to provide some fresh produce for the workers as these ships are at sea for an average of 40-50 days at a time [155].…”

Section: Discussionmentioning

confidence: 99%

Assessment of the Potential to use the Expelled Heat Energy from a Typical Data Centre in Ireland for Alternative Farming Methods

Borland¹,

Harty²,

McDonnell³

2023

Preprint

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Data centres, though a necessary part of modern society, are being stigmatised for consuming vast amounts of electricity for their operational and cooling needs. Due to Ireland’s reliance on fossil fuels to meet the increased energy demand of data centres, the data centres are contributing significantly to Ireland’s total carbon emissions. As much of this energy is expelled from data centres as waste heat energy, the potential for recycling some of this wasted heat energy was explored using environmentally friendly systems from recent publications. The recovered waste heat energy was applied in a vertical farming system, and the benefits of this waste heat to the vertical farm were analysed and quantified in two scenarios. Using conservative estimates, it was predicted that each vertical farm could be between 5-23% the size of the data centre and produce enough food to feed between 14-61 adults their daily calorie needs, and between 13-58 people their daily fresh produce requirements, depending on the scenario applied. For a more accurate prediction, each vertical farm would have to be assessed on a case-by-case basis. However, there was not enough data available on Irish data centres to perform these calculations.

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Section: Discussionmentioning

confidence: 99%

Assessment of the Potential to use the Expelled Heat Energy from a Typical Data Centre in Ireland for Alternative Farming Methods

Borland¹,

Harty²,

McDonnell³

2023

Preprint

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“…According to the form of energy storage, electric energy storage can be divided into mechanical energy storage, electric energy storage, chemical energy storage and heat storage. Mechanical energy storage includes pumped storage, compressed air energy storage and flywheel energy storage [2]. Among them, pumped storage technology has gradually matured after 100 years of development, featuring large capacity, high efficiency, rapid response to grid demand, long energy storage cycle, etc., and has been applied on a large scale all over the world [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on micro-pump turbine test bed and pump performance under working conditions

Long,

Xu,

et al. 2024

J. Phys.: Conf. Ser.

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In order to explore the actual performance of a micro-pump turbine under pump conditions, this paper builds a micro-pumped storage test platform based on micro-mixed-flow pump turbine, and then conducts energy characteristics tests in pump conditions and hump region on this basis. The final determination of the hump area range of 10.6 m3/h∼18.2 m3/h; When the flow rate is 52 m3/h, the pump turbine efficiency reaches the maximum 81.91%, and the head is 16.683 m. In the test, it is found that when the unit runs to the hump area, the noise and vibration of the flow parts are generated, and the output power and efficiency curves show nonlinear growth of abnormal speed. In this paper, by setting up a test bench and conducting real machine tests, the pump operation of the micro-pump turbine is explored, and the hump phenomenon found in the test is further tested, which provides data support and improvement ideas for the next application and optimization design of the micro-pumped storage power station.

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“…They proposed R1234zd(E) as the working fluid for ships instead of benzene which is highly flammable. Konur et al 16 analyzed the thermoeconomic performances of the ORC system utilizing the waste heat of the main engine and cargo oil pump turbine under navigation and cargo discharge modes.…”

Section: Introductionmentioning

confidence: 99%

“…They proposed R1234zd(E) as the working fluid for ships instead of benzene which is highly flammable. Konur et al 16 analyzed the thermo-economic performances of the ORC system utilizing the waste heat of the main engine and cargo oil pump turbine under navigation and cargo discharge modes. According to their results, R1234zd(E) shows the best performance among nine working fluids and COPT-based WHRS has a pay-back time of 6.2 years.…”

Section: Introductionmentioning

confidence: 99%

Thermo-economic optimization of an ORC system for a dual-fuel marine engine

Akman,

Ergin

2023

Proceedings of the Institution of Mechanical Engineers, Part M:

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The Organic Rankine Cycle (ORC) is one of the most promising systems to recover the waste heat sourced from internal combustion engines. In this study, thermodynamic, economic and environmental analyses of the scavenge air cooling water-driven Waste Heat Recovery System (WHRS) based on the organic Rankine cycle are conducted for a dual-fuel marine engine integrated with exhaust gas recirculation (EGR) system. Zero ozone-depleting and low global warming potential working fluids; R245fa, R236ea from hydrofluorocarbons, R600a, R601a from hydrocarbons, R1234ze and R1234yf from hydrofluoroolefins are selected for the low-grade WHRS. In addition to the thermal analyses, the mass and volume of the system along with the safety factors of the working fluids are evaluated to judge the physical applicability of the system for ships. Thermo-economic performances of the fluids are analyzed, optimized and compared under various engine loads, Tier II and Tier III modes to reveal the effects of different engine operating conditions on the parameters. According to the results, scavenge air has a significant amount of waste heat at medium and heavy loads and switching the engine mode remarkably affects the performance of the WHRS. R601a shows the best thermo-economic performance, however, considering the applicability of the system R236ea is the most suitable working fluid for the ORC WHRS. The overall thermal efficiency of the power generation system can be increased by about 2.8%.

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Thermal design and analysis of an organic rankine cycle system utilizing the main engine and cargo oil pump turbine based waste heats in a large tanker ship

Cited by 34 publications

References 25 publications

Assessment of the Potential to use the Expelled Heat Energy from a Typical Data Centre in Ireland for Alternative Farming Methods

Assessment of the Potential to use the Expelled Heat Energy from a Typical Data Centre in Ireland for Alternative Farming Methods

Experimental study on micro-pump turbine test bed and pump performance under working conditions

Thermo-economic optimization of an ORC system for a dual-fuel marine engine

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