Petrochemical Engineering Research Articles

On erosion wear of flat specimens incorporating roughness angle correction

Particle erosion-induced damage to structural walls constitutes a critical concern in aerospace and petrochemical engineering. Over time, this phenomenon leads to surface roughening, thereby altering particle impingement dynamics, a facet often overlooked in current simulation methodologies. This study proposes a novel numerical approach for investigating erosion characteristics of flat specimens, integrating a corrective model for roughness angle to enhance accuracy in predicting erosion profiles. Experimental validation confirms the superior performance of the proposed correction method, achieving a remarkable enhancement of approximately 60.27% in accurately predicting maximum erosion depth compared to conventional techniques. Notably, the corrected erosion depth exhibits a nonlinear relationship with erosion duration, closely mirroring experimental observations. In regions characterized by intensified erosion rates, the present method discloses a notable decrease of approximately 1.8° in forecasted particle impact angles with advancing erosion stages, thereby achieving closer adherence to empirical trends. The refined simulation method effectively rectifies historical overestimations, offering a robust framework for future studies in erosion prediction and mitigation strategies.

Design and Build “Smart Key Tracking Systems with RFID and Arduino Mega” for Use in Petrochemical Engineering Department PTSN

The problem concerning key storage at Politeknik Tun Syed Nasir Syed Ismail (PTSN) systems is a lack of systematic administration, leading to uncontrolled and insecure essential management procedures. Consequently, the objective is to create an intelligent key tracking system (SKTS) utilizing radio frequency identification (RFID) and Arduino Mega to establish a secure and properly organized key storage system with efficient data management. This project introduces the monitoring system with automated and real-time data collection. SKTS design uses an Arduino Mega 2560 microcontroller and an ESP8266 Node MCU Wi-Fi module that sends data over the cloud. The project also utilizes the Telegram chat application bot to notify and monitor the keys' retrieval and return. It is also equipped with an RFID reader as a sensor. As the authorized user, once the RFID card is swept, type the selection key number; the solenoid lock for the selected key will open, and the key is free to be picked. The liquid crystal display (LCD) will show the authorized user data and selected room number. A signal will send the information to the Telegram application through a mobile phone to notify the other authorized user. This project successfully achieves its objective by utilizing the Telegram application to notify critical users and authorized individuals when keys are returned. These real-time notifications are visible to all registered group members on the Telegram application. The Likert Scale, which has two points, is established by utilizing data responses from the rubrics form, with evaluators consisting of industrial designers and researchers. The results are subsequently synthesized using qualitative percentages. The responses to the item provided via the rubric assessment form show that the SKTS meets the design, ideal, and functional aspects.

Сравнительная экологическая оценка техногенного воздействия на воздушный бассейн территории Кировской области

The materials of federal and regional reports on the state of the environment, and control and monitoring data of the Ministry of Environmental Protection of the Kirov region, as well as on the results of scientific studies of the atmospheric air state were analyzed. Based on the analysis the comparative assessment of the atmospheric air state was carried out using the example of the Kirov Region territory as part of the Volga Federal District. The main sources of air emissions and their quantitative characteristics are noted. Despite the fact that recently the vehicle fleet has increased significantly, the stationary sources of air pollution are the main in the regions of the Volga Federal District. In a number of urban agglomerations emissions from stationary sources are inferior to mobile sources of pollution. This is confirmed by the results of the rating of the Volga Federal District regions by the total volume of atmospheric emissions from all sources of pollution for the period from 2019 to 2023. The highest quantity of air pollutant emissions is observed throughout the entire period in regions with high developed chemical, petrochemical, mining, and mechanical engineering industries. This primarily concerns the Republic of Bashkortostan, the Perm Territory, the Orenburg region and the Republic of Tatarstan. While the Chuvash and Mordovian Republics, the Republic of Mari El, the Penza, Ulyanovsk, and Kirov regions are characterized by a significantly smaller contribution of air pollutant emissions and consistently occupy a leading position in these indicators. For a number of years, the territory of the Kirov region has been consistently ranked 6th in terms of total atmospheric emissions. The results of environmental control and monitoring, and conducted scientific research indicate that the main technogenic load on the atmospheric air in the Kirov region falls on the regional center – the city of Kirov and industrially developed areas of the region: Kirovo-Chepetsky, Vyatsko-Polyansky, Omutninsky, Belokholunitsky districts. Areas with local areas of contamination are identified in each of the above.

Exploring green solvents for the sustainable fabrication of bio-based polylactic acid membranes using nonsolvent-induced phase separation

Green and sustainable membrane technology has recently gained attention from the membrane community to minimize the negative environmental impacts associated with conventional membrane production in industries, which rely on petrochemical engineering plastics and toxic organic solvents. While the fabrication of biobased and biodegradable polymeric membranes using common organic solvents has been reported, eco-friendly membrane-fabrication techniques using greener solvents are required to improve sustainability and reduce the negative environmental impact of the membrane industry. For the first time, this study comprehensively investigates the potential use of green solvents for preparing polylactic acid (PLA) membranes via the phase separation technique. PLA solubility and phase separation experiments, employing various green solvents were conducted to examine the potential applicability of these solvents for membrane fabrication. Porous PLA membranes exhibit different surface and pore structures depending on the thermodynamic and kinetic parameters of the green solvents. Based on the phase separation study, both fine PLA ultrafiltration membranes with controllable molecular weight cut-off and mechanically robust PLA microfiltration membranes with bi-continuous pore structure were successfully prepared using methyl lactate. The prepared green membranes showed a competitive filtration performance implying that the fully bio-based PLA membranes could substitute the conventional engineering plastic-based membranes in versatile membrane filtration and separation processes, especially single-use or consumable membrane products in environmental and healthcare industries.

Ultrasonic reactor set-ups and applications: A review

Sonochemistry contributes to green science as it uses less hazardous solvents and methods to carry out a reaction. In this review, different reactor designs are discussed in detail providing the necessary knowledge for implementing various processes. The main characteristics of ultrasonic batch systems are their low cost and enhanced mixing; however, they still have immense drawbacks such as their scalability. Continuous flow reactors offer enhanced production yields as the limited cognition which governs the design of these sonoreactors, renders them unusable in industry. In addition, microstructured sonoreactors show improved heat and mass transfer phenomena due to their small size but suffer though from clogging. The optimisation of various conditions of regulations, such as temperature, frequency of ultrasound, intensity of irradiation, sonication time, pressure amplitude and reactor design, it is also discussed to maximise the production rates and yields of reactions taking place in sonoreactors. The optimisation of operating parameters and the selection of the reactor system must be considered to each application’s requirements. A plethora of different applications that ultrasound waves can be implemented are in the biochemical and petrochemical engineering, the chemical synthesis of materials, the crystallisation of organic and inorganic substances, the wastewater treatment, the extraction processes and in medicine. Sonochemistry must overcome challenges that consider the scalability of processes and its embodiment into commercial applications, through extensive studies for understanding the designs and the development of computational tools to implement timesaving and efficient theoretical studies.

Interfacial modification of titanium/steel composites and its effect on the growth pattern of Fe-Ti compounds

The formation of brittle compounds at the titanium/steel interface, which weakens bonding strength, is a significant challenge that must be addressed to broaden its use in sectors like petrochemical engineering and pressure vessels. Previous research has improved bonding strength by adjusting the diffusion coefficient on the titanium side. However, it also revealed problems with the rapid increase in TiC layer thickness and the precipitation of Fe-Ti compounds at temperatures above 950°C. This study introduces a new method based on the coordinated control of titanium/steel diffusion coefficients to create a TiC barrier effect at the interface, thus preventing the formation of brittle Fe-Ti compounds. The research methodically examines the effects of coordinated diffusion coefficient control between 850°C and 1000°C on the composite interface structure and further enhances bonding strength. The findings show that the coordinated control of titanium/steel diffusion coefficients effectively stabilizes the interface structure as α-Ti, TiC, and γ-Fe, inhibiting the formation of Fe-Ti compounds. As the rolling temperature rises from 850°C to 1000°C, the bonding strength increases from 190 MPa to 340 MPa. Near the composite interface on the steel side, a (101) oriented layer forms, and the diffusion distance of carbon significantly decreases to 10μm. The composite interface layer transitions from a mixed layer of TiC and Fe-Ti with a thickness of approximately 470 nm to a uniform and continuous TiC layer about 200 nm thick. This breakthrough overcomes the limitations of rolling temperature and excessive thickening of interface brittle compounds, expanding the process window for titanium/steel composite material preparation and establishing a link between diffusion coefficients, interface structure, and mechanical properties.

Wave oscillations in thermal boundary layer of Darcy-Forchheimer nanofluid flow along buoyancy-driven porous plate under solar radiation region

The significant contribution of current mechanism is to explore the periodical and fluctuating results of heat and mass flux of Darcy-Forchheimer nanofluid flow along buoyancy-driven porous plate under solar radiation region. Flow through a Darcy-medium has a wide range of applications such as the use of oil in various hydrothermal transfer control, radioactive nuclear disposal systems, water improvement, and filtration of water. The dimensional model is transformed into non-dimension for scaling factors. The primitive-based transformation is applied on steady and oscillatory parts for smooth algorithm in FORTRAN language machine. The convenient model is again reduced into algebraic pattern by using implicit finite difference method. The numerical and graphical results of velocity, temperature and concentration are executed by Gaussian elimination method. To enhance the frequency and wavelength, the impact of solar radiations, thermophoresis, Brownian movement, Schmidt factor, Prandtl factor, porosity and buoyancy pressure is applied on periodic nanoparticles with Darcy Forchheimer relation. The novelty of this proposal to explore the wave oscillations, amplitude and phase angle of thermal and concentration boundary layer of Darcy-Forchheimer nanofluid flow along buoyancy-driven porous plate under solar radiation region. It is noticed that the prominent wavelength and frequency in thermal and concentration boundary layers is generated under porous and solar radiation region. The significance of temperature variation increases as solar radiation, Brownian motion and thermophoresis increases. It is noticed that heat and mass transport enhances as Darcy-Forchheimer and modified buoyancy force increases. In thermodynamic systems, the Darcy-porous materials is prominent assumption that is employed in many domains, especially clinical science, petrochemical and structural engineering, geography, biochemistry and biological physics, and material science. For energy storage and energy conservation, the Darcy-porous material is required for batteries, fuel cells and super capacitors.

Elliptic tangent imaging method for layered plate interfacial defects based on non-dispersive guided waves

Layered structures play an increasingly pivotal role in diverse fields such as aerospace, pipeline transportation, and petrochemical engineering. However, defects situated at the interfaces between layers pose a challenge for conventional Non-Destructive testing (NDT) methods, impeding accurate imaging. This research introduces the elliptic tangent imaging method based on interface wave modes to visualize interfacial defects within layered structures. The interface wave mode, characterized by high-frequency non-dispersive traits, facilitates precise localization of defects. Its energy concentration in the interface enhances sensitivity to interfacial defects. The elliptic tangent imaging method proposed in this paper capitalizes on the transmission coefficients of the oblique incidence technique for surface waves, enabling the concurrent determination of defect location and orientation using one pair of transducers. The application of the orthogonal matched pursuit algorithm for sparse representation of the raw signal further enhances positioning accuracy. This paper establishes an automatic detection system for interface waves, demonstrating swift transducer switching. Experimental validation of wave velocity aligns closely with theoretical calculations. In experiments focusing on interfacial defect imaging in bilayer aluminum-steel plates, the system exhibits the capability to accurately depict interfacial defects with varying orientations.

Natural convection flow of third-grade fluid along an oblique permeable micro-channel with Hall effects: an irreversibility analysis

The third-grade fluid model is one of the unique models in all the non-Newtonian fluids, which is evolved for its particular implementation in petrochemical engineering, confectionaries, earth science and lubricating systems. Hence, the current work scrutinises the entropy generation and thermal analysis of non-Newtonian fluid in a permeable oblique microchannel. The effects of heat generation, thermal radiation and Hall effects on fluids in a microchannel have been explored. The rheological expressions of third-grade fluid are considered. By considering the desirable similarity variables the equation of motion was reduced to nonlinear ordinary differential equations. The Runge–Kutta-Fehlberg’s fourth-fifth-order technique along with the shooting method was adopted to solve these dimensionless expressions. The repercussion of this investigation upholds that the enhancement of distance parameters augments the thermal field. The amplification of the porosity parameter occurs with a decrement in the thermal profile. The secondary velocity profile declines with an enhanced value of the Hall parameter and seen improvement in the primary velocity profile.

Measuring the Technological Innovation Efficiency of Listed Construction Companies in China

In recent years, China's construction companies have placed increasing emphasis on technological innovation and have invested significant resources in it. How the input-output performance of these resources needs to be clarified. The purpose of this study is to understand the differences and variations in the input-output performance of China's listed construction companies in terms of technological innovation by measuring their technological innovation efficiency (TIE), which can inform their technological innovation decisions. A data envelopment analysis (DEA) based Malmquist productivity index (MPI) model was constructed to measure the TIE of 48 China's listed construction companies from 2015 to 2020. The study has the following findings. Firstly, the overall TIE of listed construction companies decreased by 0.4% per year on average during the study period, which needs further improvement. Secondly, the changes of TIE in different sub-sectors were different. The TIE of companies in the sectors of building decoration, infrastructure construction and mining, metallurgical, and petrochemical engineering increased by 10.7%, 3.7%, and 9.5% annually, respectively. Thirdly, the TIE varies among different companies with 23 companies increasing and 25 companies declining. For most companies, the management level was the main factor restricting TIE's improvement.

Interfacial phenomena and surface protection of N80-carbon steel in acidic environments using thiazolidinediones: An experimental and computational analysis

In petrochemical engineering, a pressing challenge is the corrosion of N80 carbon steel (N80-CS) in strong acidic conditions like 15 wt% HCl, impacting both mechanical integrity and economic viability. Herein, the corrosive behavior of N80-CS in a 15 wt% HCl solution was evaluated with two thiazolidinediones, (Z)− 5-benzylidenethiazolidine-2,4-dione (BT) and 5-(4-fluorobenzylidene) thiazolidine-2,4-dione (FBT). The surface and interface phenomena were evaluated using electrochemical testing, Scanning electron microscope (SEM), atomic force microscopy (AFM), and computational modelling. Electrochemical impedance spectroscopy (EIS) revealed that, at optimum concentrations, the polarization resistance (Rp) manifested a notable increase from an initial 5.51 Ω cm2 to 80.46 and 39.64 Ω cm2 when BT and FBT were introduced, respectively. This corresponded to inhibition efficiencies of 93% for BT and 86% for FBT. This results in a substantial reduction in effective double layer capacitance due to the adsorption of inhibitor molecules. The Rp values of BT compound peaked at 158.02 Ω cm2 after a 24-hour immersion period, later declining to 82 Ω cm2 after 42 h, thus evidencing the enhanced stability of the inhibitor’s protective layer on the steel surface. The potentiodynamic polarization (PDP) technique validated that both compounds function as mixed-type corrosion inhibitors. Their adsorption followed the Langmuir adsorption isotherm model, indicating a mixed mechanism of protection via both physical and chemical interactions between the inhibitor molecules and the steel surface. SEM and AFM analyses further revealed significant alterations in the surface morphology and roughness of N80-CS, affirming the performance of these inhibitors. Ab initio Density Functional Theory (DFT) simulations further supported the experimental results, particularly explaining the superior performance of BT and its exceptional adsorption characteristics. This study confirms the anti-corrosive potential of thiazolidinediones and sets the groundwork for future research and improved inhibitor design.

Properties of densities, viscosities, thermodynamics, spectroscopic and theoretical calculations for binary mixtures of N-octyl-2-pyrrolidone and N-dodecyl-2-pyrrolidinon with 1-decanol

Pyrrolidone and long chain alcohols are significant chemical products, which are widely used in petrochemical engineering, biofuels productions, and separations of organic compounds. In this work, the physicochemical data (density and viscosity) of two systems (N-octyl-2-pyrrolidone (NOP) + 1-decanol, N-dodecyl-2-pyrrolidone (NDP) + 1-decanol) were measured at the temperature of 303.15–323.15 K over the entire concentration range and atmosphere pressure. The excess molar volume (VEm), viscosity deviation (Δη) and thermodynamic parameter (ΔG*E) were calculated and correlated by the Redlich-Kister equation. From the point of molecular interaction force and molar volume (ΔVm), the variation trend and fitted results were explained in detail. Subsequently, the spectroscopic analysis including FTIR and UV–vis spectra proved the existence of intermolecular hydrogen bond between OH group of 1-decanol and NCO group of NOP or NDP. The theoretical chemical calculations further confirmed the hydrogen bond interaction.

EXPLORING THE DYNAMICS OF AN EXOTHERMIC CHEMICAL REACTION CONTROLLED BY ARRHENIUS KINETICS WITH HALL EFFECT IN A MICROCHANNEL

The consequences of chemically reactive fluids have provoked many researchers due to their potential to enhance the behavior of heat. Hence, this article discussed a theoretical investigation to explore the actions of Arrhenius chemical reaction and Hall current on hydro-magnetic free convection of a viscous fluid flowing along an upstanding micro-channel. Subject to the required boundary conditions, the governing coupled equations representing the flow pattern in non-dimensional form were solved using the homotopy perturbation method (HPM). Line graphs are also used to generate expressions for energy, momentum, volume flow rate, drag force, and Nusselt number in both primary and secondary flow directions as a function of regulating parameters like chemical reaction, Hall current, rarefaction, and wall ambient temperature difference ratio. It is worthy of note that the fluid temperature and the fluid flow are substantially propelled by the viscous heating term in the Arrhenius chemical reaction of the system for growing values of the wall ambient temperature difference ratio parameter. Additionally, it is noticeable that volume flow rate performance is seen as a growing influence of viscous heating and rarefaction parameters. The findings of this study can be applied to a wide range of electrically controlled devices, thermal and petro chemical engineering, and the serviceability of industrial products.

Highly Efficient Electrochemical Nitrate Reduction to Ammonia in Strong Acid Conditions with Fe2M‐Trinuclear‐Cluster Metal–Organic Frameworks

AbstractNitrate‐containing industrial wastewater poses a serious threat to the global food security and public health safety. As compared to the traditional microbial denitrification, electrocatalytic nitrate reduction shows better sustainability with ultrahigh energy efficiency and the production of high‐value ammonia (NH3). However, nitrate‐containing wastewater from most industrial processes, such as mining, metallurgy, and petrochemical engineering, is generally acidic, which contradicts the typical neutral/alkaline working conditions for both denitrifying bacteria and the state‐of‐the‐art inorganic electrocatalysts, leading to the demand for pre‐neutralization and the problematic hydrogen evaluation reaction (HER) competition and catalyst dissolution. Here, we report a series of Fe2M (M=Fe, Co, Ni, Zn) trinuclear cluster metal–organic frameworks (MOFs) that enable the highly efficient electrocatalytic nitrate reduction to ammonium under strong acidic conditions with excellent stability. In pH=1 electrolyte, the Fe2Co‐MOF demonstrates the NH3 yield rate of 20653.5 μg h−1 mg−1site with 90.55 % NH3‐Faradaic efficiency (FE), 98.5 % NH3‐selectivity and up to 75 hr of electrocatalytic stability. Additionally, successful nitrate reduction in high‐acidic conditions directly produce the ammonium sulfate as nitrogen fertilizer, avoiding the subsequent aqueous ammonia extraction and preventing the ammonia spillage loss. This series of cluster‐based MOF structures provide new insights into the design principles of high‐performance nitrate reduction catalysts under environmentally‐relevant wastewater conditions.

Highly Efficient Electrochemical Nitrate Reduction to Ammonia in Strong Acid Conditions with Fe2M-Trinuclear-Cluster Metal-Organic Frameworks.

Nitrate-containing industrial wastewater poses a serious threat to the global food security and public health safety. As compared to the traditional microbial denitrification, electrocatalytic nitrate reduction shows better sustainability with ultrahigh energy efficiency and the production of high-value ammonia (NH3). However, nitrate-containing wastewater from most industrial processes, such as mining, metallurgy, and petrochemical engineering, is generally acidic, which contradicts the typical neutral/alkaline working conditions for both denitrifying bacteria and the state-of-the-art inorganic electrocatalysts, leading to the demand for pre-neutralization and the problematic hydrogen evaluation reaction (HER) competition and catalyst dissolution. Here, we report a series of FeM2 (M = Fe, Co, Ni, Zn) trinuclear cluster metal-organic frameworks (MOFs) that enable the highly efficient electrocatalytic nitrate reduction to ammonium under strong acidic conditions with excellent stability. In pH=1 electrolyte, the Fe2Co-MOF demonstrates the NH3 yield rate of 20653.5 μg·h-1·mg-1site with 90.55% NH3-Faradaic efficiency (FE), 98.5% NH3-selectivity and up to 75 hr of electrocatalytic stability. Additionally, successful nitrate reduction in high-acidic conditions directly produce the ammonium sulfate as nitrogen fertilizer, avoiding the subsequent aqueous ammonia extraction and preventing the ammonia spillage loss. This cluster-based MOF structure provide new insights into the design principles of high-performance nitrate reduction catalysts under environmentally-relevant wastewater conditions.

Control of pressurized microbubble generation by multi-channel membranes: Experiments and modeling

Microbubbles have been attracting a lot of attention in the fields of chemical and petrochemical engineering, environmental protection, medicine, and aquaculture etc. Herein, a controlled pressurized microbubble generation system is developed. Numerous microbubbles are generated under certain of pressure by multi-channel ceramic membranes in a surfactant-free system consisting of dispersed gaseous and continuous aqueous phases. The average diameter and size distribution of the microbubbles are significantly affected by the membrane pore size, membrane area, liquid viscosity, pressure and gas-liquid flow ratio. A mathematical model about the average diameter of microbubbles is established for the first time by directly introducing the membrane parameters including the membrane area and membrane pore size, and the error of the as-established model is less than 10%. More importantly, the model can be used to predict the optimal membrane pore size and membrane area under different operating conditions under the premise of achieving the expected bubble size. The work will aid the understanding and development of microbubble generation with high performance.

Direct ink writing of polyimide/bacterial cellulose composite aerogel for thermal insulation

Polyimide (PI) aerogels are well known for their high porosity, low density, thermal insulation and outstanding mechanical strength, thus expected to be applied in aerospace vehicle, intelligent driving and batteries. However, currently most PI aerogels are fabricated through traditional molding process, seriously restricted their practical applications. Although some researches on 3D printing of PI aerogels have been reported, there are some critical restrictions in present work such as complex support structures, low porosity and high thermal conductivity resulting from high solid content in printed ink. Herein, we choose bacterial cellulose (BC) with high aspect ratio as rheological modifier to construct water-based polyamic acid (PAA)/BC ink with low solid content but high yield stress enough for direct ink writing (DIW). Due to the good printability and formability of PAA/BC ink, the PI/BC aerogel with various macrostructures can be easily printed. Owing to the orientation from printing, the obtained printed PI/BC aerogel shows lower shrinkage, lower thermal conductivity and enhanced mechanical properties compared with molded PI/BC aerogels. Such printed PI/BC aerogel is potentially to be applied as thermal insulators for designated products with specific complex structure in fields of buildings and petrochemical engineering.

Synergy of the Conventional Crude Oil and the FT-GTL Processes for Sustainable Synfuels Production: The Game Changer Approach-Phase One Category

Synergy of the Conventional Crude Oil and the FT-GTL Processes for Sustainable Synfuels Production: The Game Changer Approach-Phase One Category

Raw material recycled practices for carbon neutrality

Carbon reduction is a primary strategic business development target of every industry. Petrochemical engineering and ferrous metallurgy are raw material industries that are key players in carbon emission control and are also facing huge challenges. Raw material recycling is a subject that has received much focus but is difficult to apply to products that have high quality and functional characteristics. This practical paper introduces two case studies of Company A to illustrate practical suggestions on raw material recycling realization and management for carbon neutrality from the following business strategic aspects: chances and risks of application, technical process innovation, carbon reduction rate and cost. The results show the obvious feasibility and benefit of recycling raw materials into certain strategic selected products. This can reduce carbon effectively in parallel when there is a balance among the maturity level of raw material recycling systems in the market, supplier technical capability, and product demand. This research provides suggestions to firms on how to set up a transformation management strategy and achieve readiness for green innovation.

Hierarchical microporous superhydrophobic surfaces with nanostructures enhancing vapor condensation heat transfer

A new hierarchical superhydrophobic surface with micropores and nanoblades (MN SHS) is proposed to strengthen the jumping ability of droplets and maintain the high-efficiency droplet jumping condensation at the larger subcoolings. The results demonstrate that the jumping frequency and the proportion of multidroplets merging (n ≥ 8) on the MN SHS are higher than those on the nanostructured superhydrophobic surfaces (Nano SHS). Moreover, the maximum diameter of condensate droplets is only 150 μm, which is approximately 50% smaller compared to the Nano SHS. Spontaneous jumping of condensate droplets is observed on the 40PPI MN SHS (PPI: the average number of pores per inch.) at a subcooling of 16 K; while the droplet jumping condensation occurs at a maximum of 5 K on the Nano SHS. As the subcooling ranges from 5 K to 16 K, the heat transfer coefficient of MN SHS is increased by at least 26.4% compared to the Nano SHS. In addition, lattice Boltzmann model is adopted to simulate the self-propelled jumping behaviors on different structured surfaces. The energy conversion efficiency of drops on the MN SHS is higher compared to that on the Nano SHS. This work will contribute to the potential development of dropwise condensation in energy utilization, petrochemical engineering, thermoelectric cooling and aerospace thermal management systems.