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International Journal of Process Systems Engineering最新文献

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Development of a risk-based integrity model for offshore energy infrastructures - application to oil and gas pipelines 基于风险的海上能源基础设施完整性模型的开发——在油气管道中的应用
International Journal of Process Systems Engineering Pub Date : 2015-12-31 DOI: 10.1504/IJPSE.2015.075092
M. Shafiee, Putri S. Ayudiani
{"title":"Development of a risk-based integrity model for offshore energy infrastructures - application to oil and gas pipelines","authors":"M. Shafiee, Putri S. Ayudiani","doi":"10.1504/IJPSE.2015.075092","DOIUrl":"https://doi.org/10.1504/IJPSE.2015.075092","url":null,"abstract":"Asset integrity management (AIM) is crucial at each stage of offshore energy development in order to maintain the integrity and enhance the safety of critical assets. Risk-based integrity is a widely used approach in AIM which aims to assess the potential risks of infrastructure damage, on the basis of likelihood of failure and magnitude of consequences. This paper develops a risk-based integrity model for offshore energy infrastructures with particular application to subsea oil and gas pipelines. The likelihood of failure is estimated using the Bayesian prior-posterior analysis as well as expert elicitation methods. The consequences associated with failures are also evaluated in terms of a 'cost' function which includes the costs of inspection, maintenance and repair. Our presented model is then applied to assess the potential risk of damage to an oil export pipeline. The results indicate that 'corrosion' is the most common cause of failure for pipelines, followed by external influences and human and operational errors. In accordance with the consequence analysis carried out, cost of inspection and preventive maintenance is evaluated to be significantly less than the costs associated with pipeline replacement. Finally, three mitigation strategies are suggested to minimise the risks of pipeline damage.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124058367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Smart grids vs. storage management 智能电网vs.存储管理
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071433
R. Tolmie, M. Rosen
{"title":"Smart grids vs. storage management","authors":"R. Tolmie, M. Rosen","doi":"10.1504/ijpse.2015.071433","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071433","url":null,"abstract":"Energy storage can provide an alternative to smart grids that is less expensive, more effective, and that can boost the production of energy in both electrical and thermal forms. The extra energy comes mostly from local energy sources like solar heat and heat extracted from the summer air. The electricity is stored by using it to drive heat pumps that boost the exergy of heat stored in a thermal store, subsequently recovering it via grid demand reduction. The storage makes it possible to match the supply and demand for both electrical and thermal loads and it is the synergistic integration of these two functions that makes such systems so economical. Underutilised sources like run-of-the-river hydro generators and solar thermal collectors can be more efficiently utilised and the need to generate enough power to meet peak demands is reduced, which reduces the overall capital costs.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117152806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Energy and exergy analyses of power generation via an integrated biomass post-firing combined-cycle 综合生物质燃烧后联合循环发电的能量和放能分析
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071428
Hassan Athari, S. Soltani, S. Mahmoudi, M. Rosen, T. Morosuk
{"title":"Energy and exergy analyses of power generation via an integrated biomass post-firing combined-cycle","authors":"Hassan Athari, S. Soltani, S. Mahmoudi, M. Rosen, T. Morosuk","doi":"10.1504/ijpse.2015.071428","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071428","url":null,"abstract":"Biomass energy recently has received much attention due to its renewability and relatively low environment impact, both of which suggest it has good prospects as are placement for fossil fuels in the future. Furthermore, biomass gasification reduces problems associated with direct burning of biomass, and the producer gas from the gasification process can be utilised in various power generation systems. In this article, a biomass post-firing combined cycle is proposed and energy and exergy analyses are reported for the cycle. The cycle energy and exergy efficiencies are both determined peak at specific compressor pressure ratio, and increasing the compressor pressure ratio reduces the mass of air per mass of steam in the cycle and, correspondingly, the gas turbine size. With increasing compressor pressure ratio and decreasing gas turbine inlet temperature, the quantity of natural gas required relative to biomass is observed to decrease, while the exergy loss and exergy destruction rates are seen to increase. Furthermore, as the gas inlet temperature to the heat recovery steam generator rises, the exergy destruction rate increases and the exergy loss rate decreases. The highest exergy efficiency is exhibited by the gas turbine and the lowest by the combustor and the condenser.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127648511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Incentives for the reuse of electric vehicle batteries for load-shifting in residences 鼓励在住宅中重新使用电动汽车电池以转移负载
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071429
S. Walker, Catherine Heymans, M. Fowler, S. Young, R. Fraser, Daniel van Lanen
{"title":"Incentives for the reuse of electric vehicle batteries for load-shifting in residences","authors":"S. Walker, Catherine Heymans, M. Fowler, S. Young, R. Fraser, Daniel van Lanen","doi":"10.1504/ijpse.2015.071429","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071429","url":null,"abstract":"With growing uncertainty in electricity prices and rising concern about climate change, there is increased need to reduce both energy costs and carbon emissions. One way to accomplish these goals is through load-shifting provided by the reuse of the large lithium ion batteries currently found in most electric vehicles (EVs). When used as a load-shifting device, a used EV battery has the potential to help a residential user reduce the cost of their electric bill and contribute to a reduction in emissions while also laying groundwork for the future 'smart grid'. To study this, a MatLAB model is developed and implemented to examine the use of an EV battery that is reused for peak shifting in a typical household. The results of the simulation for number of different incentive types are compared using a multi-criteria decision making approach to arrive at a policy choice that satisfies both government and consumer stakeholders.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116897966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Automotive underbody diffuser for battery thermal management 用于电池热管理的汽车底盘扩散器
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071431
Rocky Khasow, M. Agelin-Chaab
{"title":"Automotive underbody diffuser for battery thermal management","authors":"Rocky Khasow, M. Agelin-Chaab","doi":"10.1504/ijpse.2015.071431","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071431","url":null,"abstract":"This paper investigates underbody aero-thermal management of a hypothetical battery pack. Underbody diffusers are specifically designed to channel air for cooling a surface of the battery pack without significantly increasing aerodynamic drag. Numerical simulations are conducted to study the cooling and drag effects of the new diffusers on the battery pack. The numerical results show that the temperature of the battery pack upstream decreased whereas that at the downstream slightly increased compared to the no diffuser case, in addition to having a larger range of temperatures. There are smaller hot spots in comparison to the no diffuser case, which limit the number of cells in a battery that would be affected by the temperature increase, thus preventing damage. With further studies and improved diffuser design, the present work has the potential to offer better alternative locations for installing EV and HEV battery packs for improved air cooling.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134149097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single phase low THD optimised inverter for PV voltage regulation 用于PV电压调节的单相低THD优化逆变器
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071425
A. Valderrábano‐González, F. Beltrán-Carbajal, R. Tapia-Olvera, J. Rosas-Caro, H. Gabbar, A. Sharaf
{"title":"Single phase low THD optimised inverter for PV voltage regulation","authors":"A. Valderrábano‐González, F. Beltrán-Carbajal, R. Tapia-Olvera, J. Rosas-Caro, H. Gabbar, A. Sharaf","doi":"10.1504/ijpse.2015.071425","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071425","url":null,"abstract":"This paper illustrates a way to verify optimised angles for five and seven level single-phase inverters. The ability to follow strict angles for switching times is due to a simple synchronising scheme used along with the arctangent method. Power stage is focused to attain the lowest number of switches and DC sources, and can be used in a cascade multilevel strategy. Comparison of harmonic contents and total harmonic distortion is presented for several optimisation strategies carried out on the literature, and a compensation scheme for regulation with two degree of freedom that brings the inverter to have 11 or 15 level and be within the standard is proposed.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121928184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Heat management in a campus cafeteria with optimal insulation thickness for thermal comfort of a space-variant manikin 校园自助餐厅的热管理，最佳隔热厚度，为空间变人体模型提供热舒适
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071432
I. Seidu, E. Ogedengbe, M. Rosen
{"title":"Heat management in a campus cafeteria with optimal insulation thickness for thermal comfort of a space-variant manikin","authors":"I. Seidu, E. Ogedengbe, M. Rosen","doi":"10.1504/ijpse.2015.071432","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071432","url":null,"abstract":"Thermal comfort modelling of a university cafeteria, represented by the space occupied by a manikin, is developed using a two-dimensional finite volume formulation. An energy audit assessment including performance data collected from both vendors and customers of the facility is performed. Environmental and physiological data are gathered and simulated using computational fluid dynamics (CFD) to obtain realistic solutions of the energy performance and thermal comfort, and the results are validated with thermal sensation models. The thermal sensation of the occupants within an asymmetrical environment like the 2001 campus cafeteria is validated with Fanger's model, using the temperature distribution predicted with CFD. A Newton-Raphson method permits optimisation of the insulation thickness, which is capable of altering the asymmetric variation of the indoor environment and the possible attainment of energy savings through optimal building materials.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129009942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
gpuMF: a framework for parallel hybrid metaheuristics on GPU with application to the minimisation of harmonics in multilevel inverters gpuMF:基于GPU的并行混合元启发式框架，应用于多电平逆变器的谐波最小化
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071426
Vincent Roberge, M. Tarbouchi, F. Okou
{"title":"gpuMF: a framework for parallel hybrid metaheuristics on GPU with application to the minimisation of harmonics in multilevel inverters","authors":"Vincent Roberge, M. Tarbouchi, F. Okou","doi":"10.1504/ijpse.2015.071426","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071426","url":null,"abstract":"Metaheuristics are non-deterministic optimisation algorithms used to solve complex problems for which classic approaches are unsuitable or unable to generate satisfying solutions in a reasonable time. Despite their effectiveness, metaheuristics require considerable computational power. Multiple efforts have been made on the development of parallel metaheuristics on graphics processing units (GPUs). Based on a massively parallel architecture, the GPU offers remarkable computing power and can provide significant speedup. However, there currently exists no software project that unites these research initiatives into a comprehensive and reusable tool. To address this shortcoming, we developed gpuMF, a framework for parallel hybrid metaheuristics on GPUs. GPU metaheuristic framework (gpuMF) exploits the intrinsic parallelism found in metaheuristics and fully utilises the massively parallel architecture of GPUs. To demonstrate the effectiveness of our framework, we use gpuMF to minimise the harmonics of multilevel inverters while providing a speedup of 276x.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126013493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Analytical and experimental investigation of thermal efficiency improvement of thermochemical water splitting for hydrogen production 提高热化学水裂解制氢热效率的分析与实验研究
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071413
S. Ghandehariun, M. Rosen, G. Naterer, Zhao-xiang Wang
{"title":"Analytical and experimental investigation of thermal efficiency improvement of thermochemical water splitting for hydrogen production","authors":"S. Ghandehariun, M. Rosen, G. Naterer, Zhao-xiang Wang","doi":"10.1504/ijpse.2015.071413","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071413","url":null,"abstract":"This paper examines heat recovery in a thermochemical Cu-Cl cycle for efficient hydrogen production. It is essential to recover heat within the Cu-Cl cycle to improve the overall thermal efficiency of the cycle. A major portion of heat recovery can be achieved by cooling and solidifying the molten salt exiting an oxygen reactor. Heat recovery from the molten salt is achieved by dispersing the molten stream into droplets. In this paper, an analytical study and experimental investigation of the thermal phenomena of a falling droplet quenched into water is presented, involving the droplet surface temperature during descent and resulting composition change in the quench process. The results show it is feasible to quench the molten salt droplets for an efficient heat recovery process without introducing any material imbalance for the overall cycle integration.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123880304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Improving the accuracy of the single diode PV models 提高单二极管PV模型的精度
International Journal of Process Systems Engineering Pub Date : 2015-08-31 DOI: 10.1504/ijpse.2015.071427
Y. Mahmoud, E. El-Saadany
{"title":"Improving the accuracy of the single diode PV models","authors":"Y. Mahmoud, E. El-Saadany","doi":"10.1504/ijpse.2015.071427","DOIUrl":"https://doi.org/10.1504/ijpse.2015.071427","url":null,"abstract":"Single diode PV circuit models have been used widely in the literature for their simplicity. Although they are sufficiently accurate at standard test conditions (STC), they exhibit deteriorated accuracy at low levels of irradiances. This paper enhances the accuracy of single diode models at lower irradiances without affecting their simplicity. It modifies the saturation current equation to improve the accuracy under irradiance variations. The accuracy improvement is demonstrated by comparing the performance of the models, with and without the proposed modification, to the measurements provided by manufacturing datasheets of the three PV technologies available commercially; mono-crystalline, poly-crystalline, and thin-film.","PeriodicalId":360947,"journal":{"name":"International Journal of Process Systems Engineering","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125460834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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