Case Studies in Thermal Engineering最新文献_第6页

Simulation and non-similar analysis of magnetized SWCNT-MWCNT hybrid nanofluid flow in porous media using Darcy–Forchheimer–Brinkman model 利用达西-福赫海默-布林克曼模型模拟多孔介质中磁化 SWCNT-MWCNT 混合纳米流体的流动并进行非相似分析

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-09 DOI: 10.1016/j.csite.2024.105421

T. Giftlin Blessy, B. Rushi Kumar

The field of hybrid nanofluid transport through porous media holds immense promise for optimizing thermal processing and various thermodynamic applications. This study investigates the flow dynamics of a hybrid nanofluid, comprising water and a synergistic combination of single-walled and multi-walled carbon nanotubes (SWCNT-MWCNT), as it traverses a vertically stretched porous surface. The mathematical modeling of this flow scenario considers the influential factors of magnetohydrodynamics (MHD), viscous dissipation, heat sources, and ohmic heating. The Darcy–Forchheimer–Brinkman model is employed to capture the transport of fluid through the porous medium. Through the application of Local Non-Similarity (LNS) technique, the governing equations are converted into a dimensionless system and solved numerically using the robust bvp4c function in MATLAB. Interestingly, higher values of heat source parameter leads to a rising trend in the temperature profile, highlighting the intricate interplay between the thermal and fluid dynamic aspects of the system. This work provides valuable insights into the tailored design of hybrid nanofluids and porous media configurations to harness their enhanced thermal transport capabilities, with potential applications in diverse fields such as energy storage systems, heat exchangers, and thermal management devices. The findings contribute to the broader understanding of hybrid nanofluid transport in porous media and pave the way for the development of innovative thermal management solutions in a wide range of industrial and technological domains.

多孔介质中的混合纳米流体传输领域在优化热加工和各种热力学应用方面前景广阔。本研究探讨了水与单壁和多壁碳纳米管（SWCNT-MWCNT）协同组合的混合纳米流体在穿越垂直拉伸的多孔表面时的流动动力学。这种流动情景的数学建模考虑了磁流体力学（MHD）、粘性耗散、热源和欧姆加热等影响因素。采用达西-福克海默-布林克曼模型来捕捉流体在多孔介质中的传输过程。通过应用局部非相似性（LNS）技术，将控制方程转换为无量纲系统，并使用 MATLAB 中的鲁棒 bvp4c 函数进行数值求解。有趣的是，热源参数值越高，温度曲线越呈上升趋势，这凸显了系统的热学和流体动力学之间错综复杂的相互作用。这项工作为定制设计混合纳米流体和多孔介质配置以利用其增强的热传输能力提供了宝贵的见解，有望应用于储能系统、热交换器和热管理设备等多个领域。这些发现有助于加深对多孔介质中混合纳米流体传输的理解，并为在广泛的工业和技术领域开发创新的热管理解决方案铺平了道路。

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引用次数: 0

Parameters of performance: A deep dive into liquid-to-air CDU assessment 性能参数：深入了解液-气 CDU 评估

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-08 DOI: 10.1016/j.csite.2024.105461

Ali Heydari , Ahmad R. Gharaibeh , Mohammad Tradat , Qusai Soud , Yaman Manaserh , Vahideh Radmard , Bahareh Eslami , Jeremy Rodriguez , Bahgat Sammakia

The rapid growth in data center workloads and the increasing complexity of modern applications have led to significant contradictions between computational performance and thermal management. Traditional air-cooling systems, while widely adopted, are reaching their limits in handling the rising thermal footprints and higher rack power densities of next-generation servers, often resulting in thermal throttling and decreased efficiency, emphasizing the need for more efficient cooling solutions. Direct-to-chip liquid cooling with cold plates has emerged as a promising solution, providing efficient heat dissipation for high-performance servers. However, challenges remain, such as ensuring system stability under varying thermal loads and optimizing integration with existing infrastructure. This comprehensive study digs into the area of data center liquid cooling, providing a novel, comprehensive experimental investigation of the critical steps and tests necessary for commissioning coolant distribution units (CDUs) in direct-to-chip liquid-cooled data centers. It carefully investigates the hydraulic, thermal, and energy aspects, establishing the groundwork for Liquid-to-Air (L2A) CDU data centers. A CDU's performance was evaluated under different conditions. First, the CDU's maximum cooling capacity was evaluated and found to be as high as 89.9 kW at an approach temperature difference (ATD) of 18.3 °C with a 0.83 heat exchanger effectiveness. Then, to assess the cooling performance and stability of the CDU, a low-power test and a transient thermohydraulic test were conducted. The results showed instability in the supply fluid temperature (SFT) caused by the oscillation in fan speed at low thermal loads. Despite this, heat removal rates remained constant across varying supply air temperatures (SATs), and a partial power usage effectiveness (PPUE) of 1.042 was achieved at 100 % heat load (86 kW) under different SATs. This research sets a foundation for improving L2A CDU performance and offers practical insights for overcoming current cooling limitations in data centers.

数据中心工作负载的快速增长和现代应用的日益复杂，导致计算性能和热管理之间的矛盾日益突出。传统的空气冷却系统虽然被广泛采用，但在处理下一代服务器不断增加的热足迹和更高的机架功率密度方面已达到极限，往往会导致热节流和效率降低，因此需要更高效的冷却解决方案。采用冷板的直接芯片液冷技术已成为一种前景广阔的解决方案，可为高性能服务器提供高效散热。然而，挑战依然存在，例如确保系统在不同热负荷下的稳定性，以及优化与现有基础设施的集成。本综合研究深入探讨了数据中心液体冷却领域，对直接到芯片液体冷却数据中心的冷却剂分配单元（CDU）调试所需的关键步骤和测试进行了新颖、全面的实验研究。它仔细研究了液压、热能和能源方面的问题，为液空（L2A）CDU 数据中心奠定了基础。CDU 的性能在不同条件下进行了评估。首先，对 CDU 的最大冷却能力进行了评估，发现在接近温差（ATD）为 18.3 °C、热交换器效率为 0.83 的条件下，CDU 的最大冷却能力高达 89.9 千瓦。然后，为了评估 CDU 的冷却性能和稳定性，进行了低功率测试和瞬态热液压测试。结果表明，在低热负荷时，风扇转速的波动会导致供流体温度（SFT）不稳定。尽管如此，在不同的供气温度（SAT）下，热去除率保持不变，在不同的 SAT 下，100% 热负荷（86 kW）时的部分功率使用效率（PPUE）达到了 1.042。这项研究为提高 L2A CDU 性能奠定了基础，并为克服数据中心当前的冷却限制提供了实用见解。

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引用次数: 0

Thermal performance enhancement of laminar flow using compound twisted square duct and variable pitch twisted tape inserts 利用复合扭绞方形风管和可变间距扭绞带插入件提高层流的热性能

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-08 DOI: 10.1016/j.csite.2024.105462

V.P. Chithra , V. Jayakumar , Balaji Bakthavatchalam , Sambhaji Kashinath Kusekar , Kashif Irshad , Khairul Habib

This study involves a computational analysis to find the effectiveness of incorporating twisted tape within a twisted square duct for improving heat transfer, focusing on laminar single-phase flow. The primary goal is to study how varying the tape pitch (y) influences the hydrothermal performance of this system. The twisted square duct pitch (S) and twist ratio (H) were kept constant. The numerical analysis is performed under conditions of uniform wall temperature, and varying the pitch ratio (y/S) across values of 0.25, 0.5,0.75, 1, 1.25, 1.5 and 1.75. The obtained findings suggest that the addition of twisted tape within the twisted square duct results in a greater rate of heat exchange and pressure drop relative to the simple twisted square duct. Research reveals that despite a higher rate of heat transfer for a pitch ratio of 0.25 the increased friction factor results in less effective thermal performance compared to the cases with pitch ratios of 0.75 and 0.5. The thermal performance factor reaches its peak at 1.32, corresponding to the Reynolds number 1000 for a pitch ratio of 0.75 case. Conversely, the lowest thermal performance factor value of 0.89 is observed at the Reynolds number 500 for pitch ratio 1.25 case.

本研究涉及计算分析，以层流单相流为重点，找出在扭曲的方形管道中加入扭曲带以改善传热的有效性。主要目的是研究改变胶带间距（y）如何影响该系统的水热性能。扭曲的方形管道间距 (S) 和扭曲比 (H) 保持不变。数值分析是在壁温均匀的条件下进行的，间距比（y/S）在 0.25、0.5、0.75、1、1.25、1.5 和 1.75 之间变化。研究结果表明，与简单的扭曲方形风管相比，在扭曲方形风管中添加扭曲带会导致更高的热交换率和压降。研究表明，尽管间距比为 0.25 的热传导率更高，但与间距比为 0.75 和 0.5 的情况相比，摩擦因数的增加导致热性能效率降低。热性能系数在 1.32 时达到峰值，对应于间距比为 0.75 时的雷诺数 1000。相反，间距比为 1.25 的情况下，雷诺数为 500 时的热性能系数最低，为 0.89。

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引用次数: 0

New application of a calorimetric sensor: Measurement of the heat capacity of heat-conducting small parts 热量测定传感器的新应用：测量导热小部件的热容量

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-08 DOI: 10.1016/j.csite.2024.105391

Miriam Rodríguez de Rivera , Pedro Jesús Rodríguez de Rivera , Fabiola Socorro , Manuel Rodríguez de Rivera

This study explores a novel application of a calorimetric sensor to measure the heat capacity of small heat-conducting parts under varying environmental conditions. The sensor, a hybrid of a heat conduction calorimeter and a differential scanning calorimeter (DSC), has been adapted from its original use on living skin to measure conductive materials. We present a detailed description of the sensor's instrumentation, its operating model, and the experimental procedure. The sensor's accuracy is evaluated through experimental measurements on aluminum and brass samples, showing a maximum deviation of 5 % and a mean deviation of 2.35 % from the theoretical values. Additionally, finite element method (FEM) simulations are employed to further investigate the sensor's performance, confirming that both measurement time and sample size significantly influence the results. This research demonstrates the potential of this calorimetric sensor for rapid and accurate thermal analysis of small heat conducting parts, with potential applications in various scientific and industrial fields.

本研究探索了热量计传感器在不同环境条件下测量小型导热部件热容量的新应用。该传感器是热传导量热仪和差示扫描量热仪（DSC）的混合体，从最初用于测量导电材料的活体皮肤改装而来。我们详细介绍了传感器的仪器设备、运行模式和实验过程。通过对铝和黄铜样品的实验测量评估了传感器的准确性，结果显示与理论值的最大偏差为 5%，平均偏差为 2.35%。此外，还采用有限元法 (FEM) 模拟进一步研究了传感器的性能，证实测量时间和样品大小对结果有显著影响。这项研究表明，这种热量测定传感器具有对小型导热部件进行快速、准确热分析的潜力，有望应用于各种科学和工业领域。

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引用次数: 0

Structural parameters optimization of microwave radiation antenna in hydrate reservoir based on multiphysical coupling model 基于多物理耦合模型的水合物储层微波辐射天线结构参数优化

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-08 DOI: 10.1016/j.csite.2024.105449

Xin Zhang , Yuting Wang , Hanxiang Wang , Shen Fan , Xiang Meng , Haolei Xu

Microwave heating has emerged as a promising technology in hydrate mining, attracting significant interest. This study focus on optimizing the structural parameters of microwave radiation antenna via a multiphysical coupling model. Subsequently the model is validated through experimental results. The microwave radiation simulation model is then developed to evaluate the antenna radiation performance and to elucidate the temperature distribution mechanism within the reservoir. The optimized structure features rectangle slots with an angle of 75° and a length of 28 mm. When this optimized antenna is deployed in a 1-m radius reservoir and heated for 10 h, it rises the average temperature from 2 °C to 7.11 °C. Moreover, the design improves the thermal uniformity within the gas hydrate reservoir, achieving a temperature standard deviation of 7.76 °C. Post-heating uniformity indicates effective microwave distribution. Overall, these results affirm that microwave heating, particularly when utilizing an optimized antenna, effectively enhances the reservoir's sensible heat and aids in hydrate decomposition.

微波加热已成为水合物开采领域一项前景广阔的技术，引起了人们的极大兴趣。本研究的重点是通过多物理耦合模型优化微波辐射天线的结构参数。随后通过实验结果对模型进行验证。然后建立微波辐射仿真模型，以评估天线的辐射性能，并阐明储层内的温度分布机制。优化后的结构具有角度为 75°、长度为 28 毫米的矩形槽。将这种优化的天线部署在半径为 1 米的水库中并加热 10 小时后，平均温度从 2 ℃ 上升到 7.11 ℃。此外，该设计还改善了天然气水合物储层内的热均匀性，使温度标准偏差达到 7.76 °C。加热后的均匀性表明微波分布有效。总之，这些结果证实了微波加热，特别是利用优化的天线时，能有效提高储层的显热，帮助水合物分解。

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引用次数: 0

Exergy-economic based multi-objective optimization and carbon footprint analysis of solar thermal refrigeration systems 基于多目标优化和碳足迹分析的太阳能热制冷系统的能效-经济分析

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-08 DOI: 10.1016/j.csite.2024.105425

Amin Motevali Emami , Ehsan Baniasadi , Ahmed Rezk

The increasing carbon footprint associated with conventional cooling methods underscores the urgent need for sustainable alternatives. This study investigates the economic and environmental advantages of various solar-thermal cooling systems, with a focus on optimizing their performance across different climate conditions. Employing a multi-objective approach, the research emphasizes exergy-economic indices to optimize selected cycles. The analysis covers multiple refrigeration technologies, including liquid absorption, solid adsorption, and solid desiccant cycles. Results indicate that the liquid absorption cycle performs optimally in hot, arid climates, reducing the payback period to approximately 8 years when optimized. In hot and humid regions, the solid desiccant cycle proves most effective due to its superior humidity control, yielding a payback period of 5.3 years. For cold and mountainous areas, the solid adsorption cycle is preferred, with a payback period of 13.5 years, while moderate and humid climates benefit from the solid desiccant cycle for both cooling and humidity regulation. The exergy-economic factors for the solar refrigeration systems across semi-arid, hot and arid, hot and humid, cold and mountainous, and moderate and humid climates are 0.758, 0.602, 0.698, 0.74, and 0.575, respectively.

与传统冷却方法相关的碳足迹不断增加，凸显了对可持续替代方法的迫切需求。本研究调查了各种太阳能-热能冷却系统的经济和环境优势，重点是优化其在不同气候条件下的性能。研究采用多目标方法，强调优化选定循环的能效经济指标。分析涵盖多种制冷技术，包括液体吸收、固体吸附和固体干燥剂循环。结果表明，液体吸收循环在炎热、干旱的气候条件下表现最佳，优化后投资回收期可缩短至约 8 年。在湿热地区，固体干燥剂循环因其出色的湿度控制能力而被证明是最有效的，投资回收期为 5.3 年。在寒冷的山区，固体吸附循环是首选，投资回收期为 13.5 年，而在温和潮湿的气候条件下，固体干燥剂循环在制冷和湿度调节方面都有优势。在半干旱、炎热干旱、炎热潮湿、寒冷山区和温和潮湿气候条件下，太阳能制冷系统的能效经济系数分别为 0.758、0.602、0.698、0.74 和 0.575。

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引用次数: 0

Adjustment algorithm of damper openings of tangentially fired boilers based on secondary air distribution 基于二次配风的切向燃烧锅炉风门开度调节算法

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-08 DOI: 10.1016/j.csite.2024.105454

Weiwei Zhang , Yi Liu , Donghui Yuan , Jun Rong , Ningning Hu , Yuye Chen , Jianlong Ma

In the design of tangentially fired boilers, because of the limitations of the occupied area and on-site space, the structural relationship between the windbox of the secondary air pipe and the burner nozzle is the main pipe and the parallel branch pipe. The distribution of secondary air flow in each layer of the burner nozzle is not uniform when the boiler is running at peak-shaving operation. Therefore, after the distribution method of secondary air flow is determined, the adjust of air flow through the precise adjustment of secondary air damper opening is necessary. An adjustment model of secondary air damper opening under a hot condition is established through the effective coupling of the Newton–Raphson descent iteration method and a three-dimensional numerical simulation method. For different secondary air distribution objectives, precise adjustment of secondary air damper opening can be achieved through a few times of numerical simulation calculation using this model. Given the secondary air pipe of a 350 MWe supercritical tangentially fired boiler as the research object and two secondary air distribution objectives as examples, the feasibility and accuracy of the model are verified by realizing precise adjustment of damper openings.

在切向燃烧锅炉的设计中，由于受占地面积和现场空间的限制，二次风管风箱与燃烧器喷嘴之间的结构关系为主管与平行支管。锅炉在调峰运行时，燃烧器喷嘴各层二次风量分布不均匀。因此，在确定二次风量的分布方式后，需要通过精确调节二次风阀的开度来调整风量。通过牛顿-拉斐逊下降迭代法和三维数值模拟法的有效耦合，建立了热态下二次风风门开度的调节模型。针对不同的二次配风目标，利用该模型通过多次数值模拟计算即可实现二次风阀开度的精确调节。以 350 MWe 超临界切向燃烧锅炉二次风管为研究对象，以两种二次配风目标为例，通过实现风门开度的精确调节，验证了模型的可行性和准确性。

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引用次数: 0

High-precision reconstruction of a heat flux boundary via a programmable scanning electron beam controlled by the voltage waveform design method 通过电压波形设计法控制的可编程扫描电子束高精度重建热通量边界

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-08 DOI: 10.1016/j.csite.2024.105455

Minfeng Dou , Xiyao Wang , Hongxin Yao , Linshuang Long , Guozhu Zhao , Hong Ye

A scanning electron beam can be used to construct heat flux boundaries (HFBs). However, the long current response time in the deflection coil using a current control method (CCM) cause the deviation of the current waveform, potentially reducing the accuracy of the reconstructed HFB relative to the target HFB. The impact of the current response time on the reconstruction accuracy increases as the field frequency increases, and the accuracy can be reduced from 0.89 to 0.69. To shorten the current response time and improve the reconstruction accuracy, a voltage waveform design method (VWDM) is introduced as a replacement for the CCM. The result indicates that the accuracy of the HFB reconstructed by a scanning electron beam controlled by the VWDM can reach 0.91. Additionally, increasing the maximum output voltage of the power amplifier used to generate the voltage can further improve the reconstruction accuracy of the HFB with the VWDM. This study provides a new approach for the accurate construction of HFBs for rapid thermal processing, additive manufacturing and thermal assessment of hypersonic vehicles.

扫描电子束可用于构建热通量边界（HFB）。然而，使用电流控制方法（CCM）时，偏转线圈中的长电流响应时间会导致电流波形偏差，从而可能降低相对于目标 HFB 的重建 HFB 的精度。随着场频的增加，电流响应时间对重建精度的影响也会增加，精度会从 0.89 降低到 0.69。为了缩短电流响应时间并提高重建精度，引入了电压波形设计方法（VWDM）来替代 CCM。结果表明，由 VWDM 控制的扫描电子束重构的 HFB 精度可达 0.91。此外，提高用于产生电压的功率放大器的最大输出电压也能进一步提高使用 VWDM 重构 HFB 的精度。这项研究为高超音速飞行器的快速热加工、增材制造和热评估提供了准确构建 HFB 的新方法。

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引用次数: 0

Seasonal optimization of envelope and shading devices oriented towards low-carbon emission for premodern historic residential buildings of China 以低碳排放为导向的中国前现代历史性住宅建筑围护结构和遮阳设备的季节性优化

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-07 DOI: 10.1016/j.csite.2024.105452

Shiya Zhao , Jianxin Diao , Sheng Yao , Jingyu Yuan , Xuan Liu , Min Li

The renovation of historic residential buildings is required to balance the daylighting and thermal comfort of the building space with the conservation of the architectural features. However, there is a lack of dynamic optimization in the dimension of seasons for the historic residential buildings, while conservation factors are not considered in the design strategies. Therefore, in this study, a seasonal multi-optimization method for the historic residential buildings was introduced to improve the daylighting and thermal comfort while reducing carbon emissions. At first, the field and network investigation were conducted and a prototypical model was developed based on the second-order cluster analysis method. Furthermore, the envelope (internal insulation materials, internal insulation thickness, window types) and shading devices (inclination angle of shutters and shutter depth for different seasons and orientations) were optimized based on the Grasshopper platform. Finally, the best renovation solution orientated by low-carbon emission was proposed. The results show that the optimal material for the internal insulation of the wall is polyurethane, which has a thickness of 0.10 m. The window type is 6 mm high transmission reflective glass. The greatest inclination angle of shutters in summer is the window facing southeast. Conversely, in spring and autumn, the southwest windows have the greatest inclination angle of shutters. In winter, the inclination angle of shutters for the northeast windows is a maximum of 26^°. The inclination angle of shutters for southwest windows in autumn is the most needed for design, and the angle is upward reversed 47^°. The maximum shutter depth of 0.19 m in the southeastern windows is a 72.71 % improvement relative to the minimum shutter depth. Compared with the prototypical model, the useful daylight illuminance of the building model is improved by 12.41 %, the thermal discomfort hours percentage is reduced 3.09 %, and the life cycle carbon emissions is reduced by 14.6 %. The optimal design strategies for the building envelope and shading devices considering conservation principles can improve the daylighting and thermal comfort of the historic residential buildings.

历史住宅建筑的改造需要在建筑空间的采光和热舒适度与建筑特色保护之间取得平衡。然而，目前还缺乏针对历史性住宅建筑的季节动态优化方法，同时在设计策略中也没有考虑保护因素。因此，本研究引入了一种针对历史性住宅建筑的季节多优化方法，以改善日照和热舒适度，同时减少碳排放。首先，进行了实地和网络调查，并基于二阶聚类分析方法建立了原型模型。此外，基于 Grasshopper 平台对围护结构（内部保温材料、内部保温厚度、窗户类型）和遮阳设备（不同季节和朝向的百叶窗倾斜角度和百叶窗深度）进行了优化。最后，提出了以低碳排放为导向的最佳改造方案。结果表明，墙体内部保温的最佳材料是厚度为 0.10 米的聚氨酯。夏季，百叶窗的最大倾斜角度是朝东南的窗户。相反，在春季和秋季，西南方向窗户的百叶窗倾角最大。冬季，东北窗户的百叶窗倾斜角最大为 26°。秋季西南窗的百叶窗倾角是设计最需要的，角度向上反转为 47°。东南窗的百叶窗最大进深为 0.19 米，比最小进深提高了 72.71%。与原型模型相比，建筑模型的有用日光照度提高了 12.41%，热不适时间百分比减少了 3.09%，生命周期碳排放量减少了 14.6%。考虑到保护原则的建筑围护结构和遮阳设备的优化设计策略可以改善历史住宅建筑的日照和热舒适度。

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引用次数: 0

Optimized smart home energy management system: Reducing grid consumption and costs through real-time pricing and hybrid architecture 优化的智能家居能源管理系统：通过实时定价和混合架构降低电网消耗和成本

IF 6.4 2区工程技术 Q1 THERMODYNAMICS

Case Studies in Thermal Engineering

Pub Date : 2024-11-07 DOI: 10.1016/j.csite.2024.105410

Abdelrahman O. Ali , Mohamed R. Elmarghany , Ahmed M. Hamed , Mohamed Nabil Sabry , Mohamed M. Abdelsalam

Utility authorities utilize various methods to promote end-user energy conservation, including higher tariff rates and demand response (DR) strategies. This paper investigates an Optimized Smart Home Energy Management System (OSHEMS) designed to minimize grid dependence and energy bills while ensuring reliable load delivery. A hybrid architecture prototype was implemented, integrating a photovoltaic (PV) array, battery storage, and the electrical grid. The system combines Maximum Power Point Tracking (MPPT) solar chargers and Pure Sine Wave (PSW) inverters for efficient energy management. The Home Energy Management Whale Optimization Algorithm (HEMWOA) was employed to optimize energy usage and achieve cost reduction while enhancing user comfort. Real-time pricing (RTP) tariffs incentivizing flexible energy consumption during peak hours were incorporated. OSHEMS manages, schedules, and monitors energy sources and appliances, determining the optimal consumption mix. Experimental results demonstrate a significant decrease in grid reliance (46.6 %) and energy costs (57.7 %) compared to non-scheduling scenarios. These findings highlight the potential of OSHEMS in promoting sustainable and cost-effective energy consumption in smart homes.

公用事业部门利用各种方法促进最终用户节约能源，包括提高电价和需求响应（DR）策略。本文研究了一种优化智能家居能源管理系统（OSHEMS），旨在最大限度地降低对电网的依赖性和能源费用，同时确保可靠的负载交付。该系统采用混合结构原型，集成了光伏阵列、电池储能和电网。该系统结合了最大功率点跟踪（MPPT）太阳能充电器和纯正弦波（PSW）逆变器，以实现高效的能源管理。家庭能源管理鲸鱼优化算法（HEMWOA）用于优化能源使用，在提高用户舒适度的同时降低成本。此外，还采用了实时定价 (RTP) 机制，鼓励在高峰时段灵活使用能源。OSHEMS 对能源和设备进行管理、调度和监控，确定最佳的消费组合。实验结果表明，与非调度方案相比，对电网的依赖程度（46.6%）和能源成本（57.7%）均有显著降低。这些研究结果凸显了 OSHEMS 在促进智能家居可持续和经济高效的能源消耗方面的潜力。

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引用次数: 0