International Communications in Heat and Mass Transfer最新文献_第2页

Investigation of the thermal-hydraulic performance in airfoil-channel PCHE with vortex generators inspired by barchan dunes 基于新月形沙丘涡发生器的翼型通道PCHE热工性能研究

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-29 DOI: 10.1016/j.icheatmasstransfer.2025.109425

Chuanliang Zhang, Rui Liu, Quanbin Song, Huixin Lin, Qian Wang

{"title":"Investigation of the thermal-hydraulic performance in airfoil-channel PCHE with vortex generators inspired by barchan dunes","authors":"Chuanliang Zhang, Rui Liu, Quanbin Song, Huixin Lin, Qian Wang","doi":"10.1016/j.icheatmasstransfer.2025.109425","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109425","url":null,"abstract":"<div><div>Inspired by the morphology of barchan dunes, this study introduces barchan dune vortex generators (BDVGs) to enhance the thermal-hydraulic performance of the airfoil-channel printed circuit heat exchangers (PCHE). Three types of BDVGs: BDVGs-I, BDVGs-II, and BDVGs-III, are proposed. The results indicate that vortices induced by BDVGs create strong swirling flows within the airfoil-channel, promoting fluid mixing and enhancing heat transfer performance. Among these BDVGs, the airfoil-channel with BDVGs-II demonstrates the best thermal-hydraulic performance. Longitudinal vortices generated behind BDVGs-II extend further downstream and approach the airfoil fin, achieving a 6.5 % to 10.8 % improvement in overall performance compared to the conventional airfoil-channel. Given its superior performance, further analysis is conducted on the effects of transverse distances and geometric parameters of BDVGs-II. As the transverse distance increases, thermal performance first improves and then declines, whereas flow performance exhibits an opposite trend in the airfoil-channel. Furthermore, increasing the height and width of BDVGs-II improves heat transfer but also increases flow resistance. As the height of BDVGs-II increases, the overall performance of the airfoil-channel initially improves before decreasing. The optimal performance is achieved with a relatively small width of BDVGs-II, leading to a 7.2 % to 11.4 % improvement in thermal-hydraulic performance compared to the conventional airfoil-channel.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109425"},"PeriodicalIF":6.4,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development and performance evaluation of solar-powered cold storage system for perishable agricultural products 易腐农产品太阳能冷藏系统的研制与性能评价

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-29 DOI: 10.1016/j.icheatmasstransfer.2025.109408

Ghulam Hussain , Muhammad Sultan , Muhammad Aleem , Muhammad Wakil Shahzad , Md Shamim Ahamed , Muhammad Farooq , Uzair Sajjad , Zhaoli Zhang , Shahzad Ahmad

{"title":"Development and performance evaluation of solar-powered cold storage system for perishable agricultural products","authors":"Ghulam Hussain , Muhammad Sultan , Muhammad Aleem , Muhammad Wakil Shahzad , Md Shamim Ahamed , Muhammad Farooq , Uzair Sajjad , Zhaoli Zhang , Shahzad Ahmad","doi":"10.1016/j.icheatmasstransfer.2025.109408","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109408","url":null,"abstract":"<div><div>In the context of food-energy nexus security, current study designs/develops an on-grid solar-powered cold storage system (CSS) integrated with internet of things (IoT) for perishable agricultural products. Size of 3.3 kW of the on-grid solar PV system is estimated for successful operation of the CSS. Performance of the developed system is evaluated in case of tomato, capsicum and mango storage from viewpoints of maintaining T/RH, vapor pressure deficit (VPD), physiological weight loss (PWL), CO<sub>2</sub> generation, ethylene (C<sub>2</sub>H<sub>4</sub>) generation and physical appearance (for shelf-life). Moreover, the study evaluates energy available/generation by solar PV system, and unit energy consumption (UEC) by the CSS. As per results, the T and RH is maintained between 16 °C-29 °C and 75 %-99 %, respectively with VPD of 0.03-0.63 kPa for studied agricultural products. The PWL by the agricultural products is ∼3 times less while shelf-life is ∼4 times higher under storage conditions as compared to outside conditions. Consequently, the CO<sub>2</sub> and C<sub>2</sub>H<sub>4</sub> generation are maintained between 21.97-229.93 mg/kg/h and 0-9.71 μL/kg/h, respectively. The UEC is observed of 0.01 kWh/kg/day (during tomato storage), and 0.02 kWh/kg/day in case of capsicum and mango storage. Additionally, payback period, and levelized cost of electricity is computed as 2.41 years, and 0.02 $/kWh, respectively.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"168 ","pages":"Article 109408"},"PeriodicalIF":6.4,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144725048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigating and optimizing the performance of TEG and TEC systems using numerical and experimental methods and Taguchi analysis to reduce the cost of power generation 利用数值和实验方法以及田口分析研究和优化TEG和TEC系统的性能，以降低发电成本

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-28 DOI: 10.1016/j.icheatmasstransfer.2025.109328

Ali Shaafi , Milad Esfandiar , Gholamreza Pourabdi , Amir Madi Ramezani

{"title":"Investigating and optimizing the performance of TEG and TEC systems using numerical and experimental methods and Taguchi analysis to reduce the cost of power generation","authors":"Ali Shaafi , Milad Esfandiar , Gholamreza Pourabdi , Amir Madi Ramezani","doi":"10.1016/j.icheatmasstransfer.2025.109328","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109328","url":null,"abstract":"<div><div>Thermoelectric generators (TEGs) convert thermal energy into electricity with high efficiency. Conversely, thermoelectric coolers (TECs) utilize electricity for cooling. Integrating these two types of thermoelectric devices into vehicles can serve as an effective method for harnessing thermal losses. In this study, through the simultaneous application of these technologies, electricity was generated from heat loss in the vehicle exhaust system as a hot source and from the high-speed air flow due to the operation of vehicles. The generated electricity was subsequently transferred to a cooling unit, and the cooling box operation was executed within the vehicle using TEC. This study aims to examine and simulate this cycle in a laboratory under conditions of high flow rate (480 L/min) and low flow rate (240 L/min) and two temperature ranges (160–340 °C) and (227–315 °C). The cold source was also considered at three velocities (20, 25, and 30 m/s). ANSYS Fluent software was used for the simulation and numerical solutions. Validation of the numerical solution with a maximum relative error of 7.46 % for the potential difference in the high-flow mode and speed air flow due to the operation of vehicles of 20 m/s was conducted under laboratory conditions. In addition, a sensitivity analysis using the Taguchi method and an economic analysis for electric power generation were performed. The experimental results indicate that the optimal electric potential difference creation is 2.27 V at 240 L/min (low flow rate) and a speed air flow due to the operation of vehicles of 30 m/s. This leads to the lowest temperature (27.1 °C) at the cooling box center (the maximum cooling capacity). According to the economic analysis, the profitability of electric power compared to the cost incurred in high flow mode (20 m/s) for TEC and TEG are 0.23 and 0.96, respectively.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109328"},"PeriodicalIF":6.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A multifaceted experimental approach for enhancing solar distiller productivity: Nano-coated heat coil integrated with solar nanofluid collector, nano-coated absorber, nano-enhanced PCM, reflectors, and PV panels 提高太阳能蒸馏器生产效率的多方面实验方法：纳米涂层热盘管集成了太阳能纳米流体收集器、纳米涂层吸收器、纳米增强PCM、反射器和PV板

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-28 DOI: 10.1016/j.icheatmasstransfer.2025.109401

Mohamed Benghanem , Mohammed El Hadi Attia , Mohamed Abdelgaied , K. Harby , Badr H. Bedairi

{"title":"A multifaceted experimental approach for enhancing solar distiller productivity: Nano-coated heat coil integrated with solar nanofluid collector, nano-coated absorber, nano-enhanced PCM, reflectors, and PV panels","authors":"Mohamed Benghanem , Mohammed El Hadi Attia , Mohamed Abdelgaied , K. Harby , Badr H. Bedairi","doi":"10.1016/j.icheatmasstransfer.2025.109401","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109401","url":null,"abstract":"<div><div>This study explores potential improvements to the performance criteria of solar distillers through innovative design modifications. Three innovative design configurations were investigated to obtain the best design that achieves the highest performance of the solar distillers. In the first setup, the solar distiller design was developed by installing a copper heat coil in the basin integrated with a solar nanofluid collector. This modification also involved coating the heating copper coil and the absorber surface with black silver nano-coated (MSD@Case-1). In the second setup (MSD@Case-2), silver nano-enhanced PCMs were added below the absorber surface, in addition to the modifications made in the first setup (MSD@Case-1). In the third setup (MSD@Case-3), the reflectors were incorporated with both MSD and solar nanofluid collector, in addition to the modifications made in the second setup (MSD@Case-2). The results illustrated that the third innovative configuration (MSD@Case-3) represents the best design, achieving the cumulative yield of 11.66 L/m<sup>2</sup>, with 228.45 % improvement over the traditional solar distiller (TSD). Also, MSD@Case-3 achieved the highest enhancements in the thermal/exergy efficacies, which reached 62.29 %/191.16 %, respectively, over the TSD. Economically, MSD@Case-3 achieved a 48.22 % reduction in the freshwater production cost. Environmentally, MSD@Case-3 reduced CO<sub>2</sub> emissions by 47.81 tons, 3.27 times the TSD.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109401"},"PeriodicalIF":6.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144722444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical investigation on phase separation characteristics of high efficiency gas-liquid cyclone separator in refrigeration system 制冷系统中高效气液旋风分离器相分离特性的数值研究

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-28 DOI: 10.1016/j.icheatmasstransfer.2025.109409

Yi Zhao , Fufeng Zhao , Chuangye Li , Wupin Wang , Rixin Li , Jinbo Li , Peng Yang , Yingwen Liu

{"title":"Numerical investigation on phase separation characteristics of high efficiency gas-liquid cyclone separator in refrigeration system","authors":"Yi Zhao , Fufeng Zhao , Chuangye Li , Wupin Wang , Rixin Li , Jinbo Li , Peng Yang , Yingwen Liu","doi":"10.1016/j.icheatmasstransfer.2025.109409","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109409","url":null,"abstract":"<div><div>In refrigeration systems, due to the complex two-phase flow of refrigerant, achieving uniform distribution at the evaporator inlet is challenging. In recent years, the method of two-phase separation followed by uniform shunt has attracted much attention. However, the performance of traditional T-junction separators used in refrigeration systems is not superior. To solve this problem, an efficient cyclone separator is proposed in this paper. And a numerical simulation approach is employed to develop a simulation model, with its accuracy verified through experimental comparison. A detailed analysis is presented on the influence of many factors on the separator's performance. The results indicate that increasing the inlet velocity while decreasing the liquid volume fraction enhances gas separation efficiency. However, a critical flow rate exists. At inlet velocity exceeding 1.5 m·s<sup>−1</sup>, the liquid phase separation efficiency decreases. The impact of the upper outlet diameter on separation performance is relatively minor. Conversely, augmenting the diameter of lower outlet diminishes flow resistance, leading to improves the efficiency of the liquid phase separation. Peak performance is attained with a diameter setting of 5 mm. Furthermore, the incorporation of a lower outlet tube embedded structure can enhance gas phase separation efficiency by up to 4.4 %.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109409"},"PeriodicalIF":6.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144714346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling of freeze-drying of mare's milk taking into account cracks 考虑裂纹的马奶冷冻干燥模型

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-27 DOI: 10.1016/j.icheatmasstransfer.2025.109375

Timur Bekibayev , Uzak Zhapbasbayev , Nurbibi Imanbayeva , Ayaulym Rakhmatulina

{"title":"Modeling of freeze-drying of mare's milk taking into account cracks","authors":"Timur Bekibayev , Uzak Zhapbasbayev , Nurbibi Imanbayeva , Ayaulym Rakhmatulina","doi":"10.1016/j.icheatmasstransfer.2025.109375","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109375","url":null,"abstract":"<div><div>The article presents the results of calculations of sublimation drying of mare's milk without cracks in the porous structure of the product and taking into account the formation of a crack. In the case of a crack, the calculation was carried out taking into account the cracking of the product at 4:00 h and the change in the permeability of the porous body during crack formation. Stefan's problem of the mare's milk sublimation process is solved by the numerical phase field method. The calculations obtained the distributions of temperature, pressure and steam velocity, showing the development of the sublimation front in the porous structure of the product over time. Without a crack, the sublimation front spreads from top to bottom of the product almost uniformly along the length of the porous structure and is in agreement with the known data. When cracks form in the porous structure, the front disintegrates into semi-independent drying zones. The crack leads to a decrease in pressure at the sublimation front and draws in steam from the product in its vicinity. The calculations showed that the presence of a crack accelerates the process of sublimation drying of mare's milk.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109375"},"PeriodicalIF":6.4,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Topology optimization of heat sinks for an enhanced cooling of solar photovoltaic panels 用于增强太阳能光伏板冷却的散热器拓扑优化

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-26 DOI: 10.1016/j.icheatmasstransfer.2025.109382

Chongrui Yang , Dingbiao Wang , Samer Ali , Yi Li , Guanghui Wang , Mahmoud Khaled , Talib Dbouk

{"title":"Topology optimization of heat sinks for an enhanced cooling of solar photovoltaic panels","authors":"Chongrui Yang , Dingbiao Wang , Samer Ali , Yi Li , Guanghui Wang , Mahmoud Khaled , Talib Dbouk","doi":"10.1016/j.icheatmasstransfer.2025.109382","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109382","url":null,"abstract":"<div><div>When operating at high temperatures, the efficiency of solar photovoltaic panels drops down sharply. Increasing their efficiency requires advanced cooling techniques. This study develops an innovative three-dimensional heat sink design for PV cooling by integrating the finite element method (FEM) with the SGNOPT optimization algorithm and sequential quadratic programming (SQP) within a 3D topology optimization framework. The hydraulic and thermal performance of the optimized structures was analyzed under various working conditions and benchmarked against a conventional rectangular heat sink. At <span><math><mrow><mi>R</mi><mi>e</mi><mo>=</mo><mn>100</mn></mrow></math></span>, the optimized design reduced the PV panel’s top surface temperature from 370K to 297.82K, compared to a reduction to 311.17K in the non-optimized case. These results provide important scientific guidance for the future design of PV cooling systems based on coupled fluid–solid heat transfer optimization.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109382"},"PeriodicalIF":6.4,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical analysis and constructal theory applied for prediction of the growing and design of empty channels for resin injection into rectangular porous plates 应用数值分析和结构理论对矩形多孔板树脂注射空通道的生长进行了预测和设计

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-26 DOI: 10.1016/j.icheatmasstransfer.2025.109398

Glauciléia Maria Cardoso Magalhães , Rafael Adriano Alves Camargo Gonçalves , Liércio André Isoldi , Jeferson Avila Souza , Elizaldo Domingues dos Santos

{"title":"Numerical analysis and constructal theory applied for prediction of the growing and design of empty channels for resin injection into rectangular porous plates","authors":"Glauciléia Maria Cardoso Magalhães , Rafael Adriano Alves Camargo Gonçalves , Liércio André Isoldi , Jeferson Avila Souza , Elizaldo Domingues dos Santos","doi":"10.1016/j.icheatmasstransfer.2025.109398","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109398","url":null,"abstract":"<div><div>Present work proposes a methodology based on constructal theory to guide the growth and design of empty channels embedded within rectangular porous plates. The channels design is constructed from an elementary configuration, following two performance indicators (the filling time, <em>t</em>, and the wasted resin mass, <em>m</em>) and employing exhaustive search to define the adjacent possible position of each new empty square element. The low resistance channels are constructed by solving numerically the fluid flow problem and determining which direction is easier to flow. Then, starting from an inlet vent and dividing the porous domain into small regions, the channel is made to grow (occupy adjacent squares) in direction to minimize the resin injection filling time (<em>t</em><sub><em>m</em></sub>) or the wasted resin mass (<em>m</em><sub><em>m</em></sub>). The results demonstrate that the methodology based on the constructal theory is promising for improving the flow system dynamics and enhancing the understanding of form development in such systems. It was also indicated that complex branched injection channel configurations led to <em>t</em><sub>min</sub>, regardless of the height/length ratio of the plate. The resulting patterns resembled natural configurations observed in point-to-volume flows with configuration adapted to the imposed area constraint. On the other hand, simple channel configurations conducted to <em>m</em><sub>m</sub>.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109398"},"PeriodicalIF":6.4,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computational method and performance analysis of water-saving and plume-abatement cooling towers 节水减烟冷却塔的计算方法及性能分析

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-26 DOI: 10.1016/j.icheatmasstransfer.2025.109402

Qinggang Qiu , Xinqing Hao , Zefang Zhao , Qinglun Zhang , Jiaxing Zhang , Sen Ye , Xuzhuo Wang , Xiaojing Zhu

{"title":"Computational method and performance analysis of water-saving and plume-abatement cooling towers","authors":"Qinggang Qiu , Xinqing Hao , Zefang Zhao , Qinglun Zhang , Jiaxing Zhang , Sen Ye , Xuzhuo Wang , Xiaojing Zhu","doi":"10.1016/j.icheatmasstransfer.2025.109402","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109402","url":null,"abstract":"<div><div>To predict and evaluate the cooling capacity and water-saving and plume-abatement performance of full-scale industrial cooling towers under different climatic and operational conditions, this study presents a design and check calculation method for cooling towers based on water-saving and plume-abatement devices. The calculation model is established through a comprehensive analysis of heat balance, resistance balance, and heat and mass transfer during the condensation process in the vapor condensing recovery device. The software for designing and checking water-saving and plume-abatement cooling towers has also been developed and validated against experimental results from the water-saving device. Using typical meteorological data from Dalian, the study analyzes the water savings, plume-abatement effects, and economic feasibility of such cooling towers. The results show that the cooling tower equipped with water-saving and plume-abatement devices under low-temperature conditions can achieve a water-saving rate exceeding 23 %. Compared to conventional cooling towers, the innovative cooling tower demonstrates 2.82 × 10<sup>4</sup> m<sup>3</sup> annual water savings, yielding a total economic cost reduction of 2.63 × 10<sup>4</sup> CNY. This approach not only conserves substantial water resources and reduces plume phenomena but also lowers operational costs for enterprises, making it an ideal solution for regions with cooler climates and water scarcity.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109402"},"PeriodicalIF":6.4,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review on microbial bioconvection in porous media: Mechanisms, bloom formation, and technological Frontiers 多孔介质微生物对流研究进展：机理、水华形成及技术前沿

IF 6.4 2区工程技术

International Communications in Heat and Mass Transfer Pub Date : 2025-07-25 DOI: 10.1016/j.icheatmasstransfer.2025.109394

Samarendu Biswas, Sachidananda Mahato, Jayabrata Dhar

{"title":"A review on microbial bioconvection in porous media: Mechanisms, bloom formation, and technological Frontiers","authors":"Samarendu Biswas, Sachidananda Mahato, Jayabrata Dhar","doi":"10.1016/j.icheatmasstransfer.2025.109394","DOIUrl":"10.1016/j.icheatmasstransfer.2025.109394","url":null,"abstract":"<div><div>The present review critically examines recent advances in understanding bioconvective dynamics, a hydrodynamic instability phenomenon arising from the collective motion of motile microorganisms, within porous media. We revisit how multiple external parameters influence and exploit bioconvective transport to alter thermo-physical characteristics in a domain. Our analysis reveals a significant gap wherein a lack of pore-scale numerical studies and experimentation is needed to assess whether bioconvection is physically sustainable across real porous systems, and how pore characteristics may impact its dynamics. Furthermore, we explore how bloom formation in porous matrices intersects with emerging genetic engineering strategies aimed at modulating microbial behaviour. By highlighting the scarcity of experimental validation and pore-scale modelling, we identify critical knowledge gaps and propose future directions for leveraging microbial bioconvection in porous environments, with promising applications in environmental sustainability and biotechnology.</div></div>","PeriodicalId":332,"journal":{"name":"International Communications in Heat and Mass Transfer","volume":"167 ","pages":"Article 109394"},"PeriodicalIF":6.4,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144702464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0