基于能源效率的船舶压缩空气系统运行，以减少燃料消耗和二氧化碳排放

IF 0.7 4区工程技术 Q4 ENGINEERING, MARINE

International Journal of Maritime Engineering Pub Date : 2021-12-13 DOI:10.5750/ijme.v161ia2.1088

C. Dere, C. Deniz

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引用次数: 2

摘要

能源效率问题在海事领域越来越受到重视。由于压缩空气在加压过程中固有的效率不足，因此在运行方式上是一种宝贵的能源。运行压力和泄漏率是影响系统运行效率的主要变量。本研究旨在揭示压缩空气系统的节能潜力。为此，评估了29-30 bar至14-18 bar的压力范围，以及2.4%至45%的不同泄漏率。从船上获得数据后，进行了热力学计算。压力优化后，日用电量节约47.3%，压缩空气单位成本节约58.2%，一年燃油消耗和二氧化碳排放分别减少18.4吨和57.4吨。高泄漏率会导致2.7倍以上的电力和燃料消耗。最后，运行负荷作为压缩机的重要指标，使缺陷可识别。

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ENERGY EFFICIENCY BASED OPERATION OF COMPRESSED AIR SYSTEM ON SHIPS TO REDUCE FUEL CONSUMPTION AND CO2 EMISSION

Energy efficiency subject has been gaining importance in maritime sector. The compressed air is a valuable energy source in operational manner, by the reason of intrinsic lack of efficiency in pressurization process. Operational pressure and leakage rate are the major variables which affect operational efficiency of the system. This study aims to reveal potential energy saving for the compressed air system. To this end, several pressure ranges, 29-30 bars to 14-18 bars, and different leakage rates 2.4% to 45% are evaluated. After the data was obtained from ships, thermodynamic calculations had been carried out. Optimization of pressure saves 47.3% in daily power requirement, 58,2% in compressed air unit cost, 18.4 and 57.4 tons of reduction in fuel consumption and CO2 emissions in a year respectively. High leakage rates can cause 2.7 times more power and fuel consumption. Finally, operating load, as an important indicator of compressor, makes imperfections identifiable.

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来源期刊

International Journal of Maritime Engineering ENGINEERING, MARINE-

CiteScore

1.20

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： The International Journal of Maritime Engineering (IJME) provides a forum for the reporting and discussion on technical and scientific issues associated with the design and construction of commercial marine vessels . Contributions in the form of papers and notes, together with discussion on published papers are welcomed.