Exergoeconomic and air emission analyses for marine refrigeration with waste heat recovery system: a case study

IF 2.6 4区工程技术 Q1 Engineering

Journal of Marine Engineering and Technology Pub Date : 2020-09-01 DOI:10.1080/20464177.2019.1656324

Veysi Başhan, Görkem Kökkülünk

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引用次数: 7

Abstract

Nowadays, shipping industry faces challenges of energy efficiency and reducing of fuel consumption. Moreover, Waste Heat Recovery Systems (WHRS) regarding energy efficiency have a larger focus to utilise the heat energy lost from all thermal processes from ship engines. WHRS is one of the best methods to reduce fuel consumption and implicitly emissions. Refrigeration system, which can be evaluated as one of these systems, has a high energy efficiency potential on ships. In this study, exergoeconomic and air emission analyses of a case study ship named M/V Ince Ilgaz have been performed by comparing Vapour Compression Refrigeration System (VCRS) and VCRS with WHRS on exergy destruction and Second Law Efficiency in case of variable sea water temperature with 15 different refrigerants. Furthermore, a novel proposed WHRS is used for preheating of an accommodation water which leads reducing of exergy destruction about 9.31–10.60% while using R134A refrigerant. The fuel consumption due to refrigerant compressor has a 36% increase with the 10°C increment of sea water temperature. The increase of CO2, SO2, NO x and Particular Matter (PM) emissions is found about 183.40, 3.10, 4.65 and 0.47 tonnes, by the increase of sea water temperature from 20°C to 30°C for the fleet of 15 ships, respectively. In conclusion, using waste heat recovery on refrigeration system could directly reduce fuel consumption and air emissions.

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船用余热回收制冷系统的经济性和空气排放分析：一个案例研究

如今，航运业面临着能源效率和降低燃料消耗的挑战。此外，关于能源效率的废热回收系统（WHRS）更注重利用船舶发动机所有热过程中损失的热能。WHRS是减少燃料消耗和隐性排放的最佳方法之一。制冷系统可以被评估为这些系统之一，在船舶上具有很高的能效潜力。在本研究中，通过比较蒸汽压缩制冷系统（VCRS）和VCRS与WHRS在15种不同制冷剂的可变海水温度情况下的火用破坏和第二定律效率，对M/V Ince Ilgaz号案例研究船进行了火用经济性和空气排放分析。此外，提出了一种新的WHRS用于住宿水的预热，在使用R134A制冷剂时，其火用破坏减少了约9.31–10.60%。随着海水温度升高10°C，制冷剂压缩机的燃油消耗量增加了36%。15艘船队的海水温度从20°C上升到30°C，二氧化碳、二氧化硫、氮氧化物和特殊物质排放量分别增加了183.40、3.10、4.65和0.47吨。总之，在制冷系统中使用废热回收可以直接降低燃料消耗和空气排放。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Marine Engineering and Technology 工程技术-工程：海洋

CiteScore

5.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Marine Engineering and Technology will publish papers concerned with scientific and theoretical research applied to all aspects of marine engineering and technology in addition to issues associated with the application of technology in the marine environment. The areas of interest will include: • Fuel technology and Combustion • Power and Propulsion Systems • Noise and vibration • Offshore and Underwater Technology • Computing, IT and communication • Pumping and Pipeline Engineering • Safety and Environmental Assessment • Electrical and Electronic Systems and Machines • Vessel Manoeuvring and Stabilisation • Tribology and Power Transmission • Dynamic modelling, System Simulation and Control • Heat Transfer, Energy Conversion and Use • Renewable Energy and Sustainability • Materials and Corrosion • Heat Engine Development • Green Shipping • Hydrography • Subsea Operations • Cargo Handling and Containment • Pollution Reduction • Navigation • Vessel Management • Decommissioning • Salvage Procedures • Legislation • Ship and floating structure design • Robotics Salvage Procedures • Structural Integrity Cargo Handling and Containment • Marine resource and acquisition • Risk Analysis Robotics • Maintenance and Inspection Planning Vessel Management • Marine security • Risk Analysis • Legislation • Underwater Vehicles • Plant and Equipment • Structural Integrity • Installation and Repair • Plant and Equipment • Maintenance and Inspection Planning.