Air Side Research Articles

A CFD multi-objective optimization framework to design a wall-type heat recovery and ventilation unit with phase change material

This work applies multi-objective optimization based on a genetic algorithm to design a wall-type heat recovery and ventilation (HRV) unit equipped with a phase change material (PCM) to show the benefits of using this thermal energy storage system in buildings. The initial design – taken from a reference work – consists of an airflow driven by a fan through a copper tube bundle filled with PCM. Starting from this, a thermo-fluid dynamic 3D model is developed to assess the natural convection negligibility inside the PCM. Then, a 2D model is solved with a commercial finite element code and validated. Once the validation is assessed, this model is coupled with MATLAB® to perform the multi-objective optimization procedure. Optimal system configurations (tube diameter, thickness, pitches) and operational variables (fan velocity, cycle time, PCM melt temperature) are achieved on a 3D Pareto surface that collects the non-dominated solutions, i.e., minimizing costs and pressure drop (air side), and maximizing the average storage rate. The 3D Pareto approach enables to find solutions that outperform the initial configuration, i.e., the average storage rate is increased by 28.4%, simultaneously improving the other two objective functions. Finally, two sub-optimal solutions from the 2D fronts are numerically compared to show the difference in the air stream distribution across the new tubes’ arrangement and the PCM melting evolution. The HRV efficiency is enhanced from 37.5% to 44.4%, confirming that the proposed approach provides an economically-feasible solution, while reducing energy consumption and maintaining good indoor air quality.

Peran Petugas Apron Movement Control (Amc) Dalam Pengawasan Keselamatan Sisi Udara Di Bandar Udara Tambolaka Sumba Barat Daya

ABSTRACT, Apron Movement Control (AMC) officers often find Ground Handling officers who do not use ear protection and drive GSE vehicles that exceed the maximum speed of 20 KM, causing the GSE vehicle to suddenly die. This researcher aims 1) To determine the role of Apron Movement Control (AMC) officers. 2) To find out the obstacles for Apron Movement Control (AMC) officers in an effort to improve safety on the air side and to find out solutions in solving the obstacles for Apron Movement Control (AMC) officers.
 This study uses a qualitative method. The tools used were the researchers themselves, with the results of observations in the Apron Movement Control (AMC) unit, interviews and documents as supporting documents to answer the research questions, the researchers conducted a 3-stage analysis consisting of data reduction, data presentation and drawing conclusions.
 The results of this study indicate that 1) The role of the Apron Movement Control Unit (AMC) at Tambolaka Airport, Sumba Barat Daya, is located at domestic and international airports which play a very important role in aviation security and safety including providing instructions and supervising all vehicles and personnel traveling serves to oversee the movement of aircraft in the area of ​​aircraft that are currently operating on the Apron and Runway. 2) Obstacles in the Apron Movement Control Unit (AMC) Tambolaka Airport, Southwest Sumba, namely the obstacles experienced when carrying out supervision, there is still a lack of ear protection when monitoring the performance of baggage handling personnel and Apron Movement Control (AMC) officers. naturally the Apron Movement Control (AMC) officer while carrying out surveillance on the apron, the officer found a GSE vehicle that was traveling beyond the maximum limit of 20 km so that it experienced a sudden engine shutdown, not knowing about the rules on the air side.

Computational Study of Heat Exchange and Thermal Oxidative Coking of Supercritical-Pressure Kerosene With Compressed Air in Counterflows

Abstract The Cooled Cooling Air (CCA) technology could be effectively used in an advanced gas turbine engine to reduce temperature of the highly compressed air and recover its cooling capacity, using the onboard fuel as coolant. Computational investigations are conducted to analyze heat exchange between the supercritical-pressure aviation kerosene and the compressed high-temperature air in a double-pipe counterflow configuration, intended for the CCA applications. The thermal oxidation reactions and surface coking of kerosene are taken into consideration based on a validated chemical mechanism. Results indicate that the air tube diameter should be determined to obtain not only the improved overall thermal performance on the air side, regarding both heat transfer and pressure drop, but also the properly limited maximum temperature on the fuel side to avoid the strong pyrolysis chemical reactions of kerosene and the resulting fast surface coking process. Although the ribbed and dimpled surface structures are both able to improve the overall thermal performance in the fuel tube and increase the bulk air temperature reduction, they also lead to the increased surface coking rate from the thermal oxidation reactions. The thermal oxidative coking process would gradually increase heat transfer barrier and cause an adverse effect on the long-time and efficient operation of a heat exchanger. Numerical results obtained in this paper should have fundamental and practical importance in CCA applications.

Pelaksanaan Tugas Inspektur Kelaikudaraan Bidang Perawatan Pesawat Udara Dalam Menunjang Keselamatan Penerbangan Di Bandar Udara Internasional Sultan Hasanuddin Makassar

The Region V Airport Authority is one of the Technical Implementation Units (UPT) within the Ministry of Transportation which is responsible to the Minister of Transportation through the Directorate of Civil Aviation, where the duties of the airport authority itself are to supervise, control, and regulate activities both from the Land Side and Air Side at Sultan Hasanuddin International Airport Makassar. This research aims to find out (1) How is the implementation of the duties of the Airworthiness Inspector for Aircraft Maintenance in supporting flight safety at Sultan Hasanuddin International Airport Makassar, (2) What are the obstacles of Airworthiness Inspector for Aircraft Maintenance in carrying out duties at Sultan Hasanuddin International Airport Makassar. This research was conducted in February - March 2023 at the Makassar Region V Airport Authority Office, using descriptive research methods with qualitative analysis. Data collection was done through interview, observation, and documentation techniques. And Trigulation is used to test the reliability of the data obtained. The results of the discussion in this study are (1) in the implementation of the tasks carried out by the Airworthiness Inspector of the Aircraft Maintenance Division at Sultan Hasanuddin International Airport Makassar has carried out its duties properly in accordance with the regulations listed, one of which is PM 41 of 2011 and KP 252 of 2017, but not all tasks listed in the PM are carried out at the Region V Airport Authority because it must wait for delegation from the center first such as the Advanced Standard Certificate or can be called (CoA). (2) For the obstacles faced by inspectors at Sultan Hasanuddin International Airport Makassar, namely in the time and skills of the inspectors, where the inspectors cannot determine how long it takes when the inspection takes place because they have to see the ground time of the aircraft to be inspected and for human resources (Skil) inspectors at the Region V Airport Authority are lacking there are some inspectors who are still confused about analyzing the findings obtained.

Investigation of the Electrode-Electrolyte Interfaces in Solid Oxide Cells

The interface between electrodes and electrolyte in a solid oxide cell (SOC) are critical locations for cell performance. These interfaces originate from the chemical interaction of two different materials during processing. Different mechanisms can degrade cell performance on the air and fuel side, which necessitates different approaches to mitigate these effects. Here, materials interaction during processing is discussed for selected materials on the air side of an SOC. A new approach to obtain barrier layers of doped ceria with submicron thickness is introduced, and it is confirmed that only the interdiffusion layer between ceria and zirconia is necessary to prevent the formation of SrZrO3. Furthermore, the effect of the microstructure of a GDC layer on the sintering of a perovskite air electrode in this layer is investigated. It is demonstrated that the morphology of the GDC layer has an impact on the quality of the interface between air electrode and barrier layer.

Degradation Evaluation of LaCrO3-Based Interconnect on the Basis of Oxygen Permeation Measurements

Degradation of LaCrO3-based interconnect was evaluated by comparing the oxygen permeation flux for flat tube SOFC cells before and after long-term operation (20,000 hours). Oxygen permeation flux was estimated based on the amount of water vapor, which was generated as a result of oxygen permeation from the air side to the hydrogen side. The estimated oxygen permeation flux for the SOFC cell before long-term operation was found to be in the range of 0.02–0.06 mL cm−2 min−1 at 750 °C. For the cell after long-term operation, the oxygen permeation flux was found to be in the range of 0.04–0.05 mL cm−2 min−1, which was almost similar with that for the cell before long-term operation. This suggested that degradation of LaCrO3-based interconnect, i.e., increase in oxygen permeation flux, is quite small.

PENGAWASAN UNIT APRON MOVEMNT CONTROL (AMC) TERHADAP DISIPLIN PENGGUNA JASA DI BANDAR UDARA KOMODO LABUAN BAJO

Apron Movement Control (AMC) is an airport personnel who has a license and rating to carry out supervision of order, safety of traffic movements on the apron, ensure the cleanliness of the apron area and determine aircraft parking. One of the aims of the supervision carried out by Apron Movement Control (AMC) is to create discipline for service users in flight activities. The purpose of this study was to find out how the Apron Movement Control unit supervises service user discipline and how the Apron Movement Control unit disciplines service users at Komodo Airport Labuan Bajo. 
 This research is a qualitative research using primary data and secondary data. Data collection techniques used are observation, interviews and documentation. The observation is to conduct a review or direct observation on the AMC unit. Interviews in this study were 2 AMC personnel. The documentation is taking data during observations and interviews, as well as taking pictures during field activities. 
 The results of this study can be concluded that the supervision of the AMC unit on the discipline of service users is to supervise all operational activities on the apron such as supervision of the speed of GSE vehicles and also officers' vehicles, supervision of the mobility of people or passengers, supervision of equipment that must be used by officers such as safety vests, supervision of engine running up, supervision during refuelling, and also supervision of the cleanliness of the apron area. The way the AMC unit disciplines service users on the air side (apron) is to supervise all mobility of people/passengers, then for Ground Handling officers if they violate the rules, they must take action from AMC. The action taken is a direct warning to the person concerned and if the warning is given to the same person three times, then the airport is revoked or detained, so that the person concerned is not allowed or prohibited to work in the apron area or in the air side area

Responsive polymer thin films

Responsive polymer thin films

Performance of a novel dual-heat-source heat pump system

A novel photovoltaic-thermal and air dual-heat-source evaporator was designed in this study. The evaporator was constructed using the micro heat pipe array instead of the aluminum absorbing plate to optimize the structure. Two fans were installed on the evaporator to forced convection heat transfer on the air side. Then a novel dual-heat-source heat pump system was developed, and the system was evaluated under various conditions. The results showed that the system exhibited excellent performance when operated under solar energy source or solar energy and air dual-heat-source modes. The coefficient of performance increased by 23.6%-31.4% compared with the air source mode. The function of the surrounding air under the solar energy and air dual-heat-source mode varied between exothermic and endothermic effect. The amount of heat absorbed from the surrounding air under the solar energy and air dual-heat-source mode gradually decreased with an increase in the system operation time. The electrical, thermal and overall efficiencies as well as coefficient of performance of the system significantly fluctuated with varying solar radiation and the surrounding air temperature. The findings provide a basis for further optimization of the system.

Modeling of single- and double-sided high-pressure operation of solid oxide electrolysis stacks

This study concerns numerical investigation of a solid oxide electrolysis stack, in which the cells are pressurized on only the fuel side (single-sided mode) or both fuel and air sides (double-sided mode). A 90-cell stack model is used to study the effects of the operating pressure on the polarization curves, area-specific-resistance (ASR), temperature, and pressure. The model predicts higher open-circuit voltage (OCV), lower ASR, and lower pressure drops over the flow fields at higher operating pressures. The latter leads to flexibility in the flow field design. The results show that the single-sided mode hinders the OCV increase and reduces the ASR. Nonetheless, the ASR reduction under the double-sided mode is more significant than the single-sided mode. Therefore, the double-sided mode performs better at high current densities since its higher ASR reduction provides a lower increase in the stack voltage (/input power). Moreover, the results indicate a nonlinear relationship between the temperature distribution and the operating pressure under the double-sided mode due to its counteracting effects on the ohmic heat sources and reaction heat sink. It is illustrated that the temperature difference over the stack decreases under the double-sided mode at higher operating pressures and lower current densities.

Experimental and numerical investigations on the explosions nearby a free surface from both sides

The explosion near a free surface is a complex multiphase flow problem involving large deformation and even fragmentation of the fluid interface. Experiments and numerical simulations are presented to investigate the transient fluid dynamics of explosions approaching the free surface from the air and water sides. The numerical model is established based on the Eulerian finite element method and the Volume of Fluid method. The explosion experiments are conducted in a water tank. We classify the problem into cavities and bubbles according to whether the explosive is exposed to the air. Explosions above the free surface generate hemispherical cavities that evolve into W-shaped ones after an upward jet develops from the bottom. The hemispherical cavity will close if the explosion is close enough to the free surface. The simulations reveal that the distance parameter dominates the bubble’s bursting and that the explosive equivalent and distance parameter compete to determine the cavity’s closure. In addition, the impact pressure characteristics generated by the explosion near the free surface are also analyzed.

Study on Multifield Migration and Evolution Law of the Oxidation Heating Process of Coal Spontaneous Combustion in Dynamic Goaf.

To study the dynamic evolution law of the oxidation heating process of coal spontaneous combustion in the goaf during the advancing process of the working face, a dynamic model of oxidation heating of coal spontaneous combustion in the goaf was established on the basis of deformed geometry. Through numerical simulation research, the evolution and migration laws of seepage field, oxygen concentration field, temperature field, and high-temperature area of coal spontaneous combustion in the goaf during the advancement of the working face was obtained. The results indicate that the distribution of the bulking coefficient, porosity, and permeability of the falling coal and rock mass in the goaf is nonuniform. They are relatively large in the area near the working face and the inlet and return airway and remain relatively unchanged with the advancement of the working face, but they are constantly decreasing in the location of the gob in the middle and deep. The oxygen concentration in the goaf presents an asymmetrical distribution. The oxygen concentration distribution area on the inlet side is wider than that on the return air side. At the same depth of the goaf, the oxygen concentration gradually decreases from the inlet side to the return air side; after the advancement distance exceeds 200 m, the air leakage in the goaf basically disappears, and the oxygen concentration decreases to zero. The high-temperature area of coal spontaneous combustion oxidation in the goaf was mainly concentrated on the air inlet side and extended toward the return air side. The advancing speed has a significant effect on the oxidation heating process of coal spontaneous combustion in the dynamic goaf. Under the same propulsion distance, when the advancing speed is 6 m/day, the highest temperature in the goaf is about 40 °C, and when the advancing speed is 2 m/day, the highest temperature in the goaf is as high as 120 °C. The smaller the advancing speed, the higher the heating rate of the goaf and the closer the high-temperature area to the working surface. The higher the advancing speed, the lower the temperature of the high-temperature point of the goaf and the greater the depth of the high-temperature point of the high temperature area; when the advancing speed is 2 m/day, the highest temperature point in the goaf is 70 m away from the working face, whereas when the advancing speed is 6 m/day, it reaches 174.6 m.

Effects of surface tension reduction on wind-wave growth and air–water scalar transfer

Effects of surface tension reduction on wind-wave growth are investigated using direct numerical simulations of air–water two-phase turbulent flows. The incompressible Navier–Stokes equations for air and water sides are solved using an arbitrary Lagrangian–Eulerian method with boundary-fitted moving grids. The wave growth of finite-amplitude and non-breaking gravity–capillary waves, whose wavelength is less than 0.07 m, is simulated for two cases of different surface tensions under a low-wind-speed condition of several metres per second. The results show that significant wave height for the smaller surface tension case increases faster than that for the larger surface tension case. Energy fluxes for gravity and capillary wave scales reveal that when the surface tension is reduced, the energy transfer from the significant gravity waves to capillary waves decreases, and the significant waves accumulate more energy supplied by wind. This results in faster wave growth for the smaller surface tension case. The effect on the scalar transfer across the air–water interface is also investigated. The results show that the scalar transfer coefficient on the water side decreases due to the surface tension reduction. The decrease is caused by suppression of turbulence in the water side. In order to support the conjecture, the surface tension effect is compared with laboratory experiments in a small wind-wave tank.

Studi Revitalisasi Fasilitas Ruang Tunggu Terminal Penumpang Domestik Bandar Udara Internasional El Tari Kupang Pasca Badai Seroja


 Facilities at the airport are divided into two main parts consisting of the land side and the air side. Existing facilities on the land side consist of: passenger terminal, cargo terminal, operational building, air traffic control tower or Air Traffic Control (ATC), SAR (Search and Rescue) building, meteorological building, main/VIP class building, entrance , fueling building, as well as administrative and office buildings. While the facilities on the air side consist of: runways, taxiways, aircraft parking areas, runway strips or runway end safety areas, as well as aviation accident rescue and fire fighting facilities. This research uses a type of qualitative research and descriptive research type. The purpose of the authors using qualitative research is to describe and reveal the facts and symptoms contained in the research problem, namely to analyze and describe the revitalization of the waiting room for the domestic passenger terminal at El Tari Kupang International Airport.The strategy for repairing damaged and unfit for use due to the Seroja storm has been realized and the damaged and unfit for use facilities have received proper and prompt treatment due to good coordination and cooperation between operating units and related units that were damaged. In addition, efforts to maintain. The quality of facilities is an important thing to prioritize because it has a high level of importance, but in practice there are still many complaints from service users who feel unsatisfied regarding the quality of the facilities available at El Tari Kupang International Airport, especially in the waiting room.
 Keywords: Security,Waiting Room, and Comfortness

Performance enhancement of fin and tube heat exchanger employing curved trapezoidal winglet vortex generator with circular punched holes

Vortex generation is a potential passive technology for increasing the heat transfer rate in the air side of fin and tube heat exchangers (FTHEs). This study proposes novel configurations of a curved trapezoidal winglet vortex generator (CTWVG) with and without circular holes to improve heat transfer in FTHEs. As per the literature, the streamlined form of the trapezoidal winglet demonstrates high heat transfer enhancement with low flow loss and pressure drop. But still, different design configurations are possible to augment the heat transfer characteristics of CTWVG further. The current study investigates the novel configurations of CTWVG (i.e., CTWVG without hole, CTWVG with 1 hole, CTWVG with 2 holes, CTWVG with 3 holes and CTWVG with 6 holes). A three-dimensional computational model is utilized to evaluate the thermal-hydraulic efficiency of FTHEs fitted with CTWVGs with or without circular holes for Reynolds numbers ranging from 400 to 2000. A common flow-down configuration of the CTWVG with circular tubes array is used to reduce the wake region. The thermo-hydraulic performance and flow structure of FTHE with four inline circular tube configurations are compared without VG and CTWVG with or without holes. Pressure drop (ΔP), Nusselt number (Nu), friction factor (f), Colburn factor (j), and London area goodness factor (j/f) are used for the thermal-hydraulic performance comparison. Results show that the number of punched holes has an impact on the FTHE performance, which is measured using a dimensionless number as performance evaluation criteria (i.e., (j/jo)/(f/fo)). CTWVGs with circular punched holes significantly increase the FTHE's thermo-hydraulic performance. The results indicate that the flow resistance is reduced in all cases (i.e., VG with no holes, VG with 6 holes, VG with 3 holes, VG with 2 holes, and VG with 1 hole) with a minor decrease in the Nusselt number. The CTWVG with six holes performs better than other CTWVG configurations. At Reynolds numbers 400 and 2000, the Nusselt number for CTWVG with six holes enhanced by 75.25% and 40.10%; pressure drop increased by 107.88% and 125.51%, respectively. On the other hand, friction is reduced by a factor of 8.1% in CTWVG with 6 holes compared to CTWVG without holes. The CTWVG with six holes performs better than other CTWVG configurations reported in the literature [48,54]. HTPF has increased by 30.96% (compared to rectangular winglet [48]) and 27.69% (compared to curved rectangular winglet [54]) with respect to values reported in the literature. The London area goodness factor (LAGF) has been increased by 275% compared to Modi et al. [48].

Analysis of Factors Affecting the Performance of Apron Movement Control (AMC) Officers in Improving Monitoring of Foreign Object Debris (FOD) on the Air Side of Adi Soemarmo International Airport Solo

This study aims to determine whether there are variables that affect the performance of Apron Movement Control (AMC) officers in increasing FOD monitoring at the Air Side of Adi Soemarmo International Airport, Solo. It used quantitative method. According to the research findings, the regression coefficient value of the AMC officer's performance variable is 0.735, which means that the influence of AMC officer's performance in increasing FOD supervision is positive. A significance value of 0.000 <0.0 5 which indicates that the performance of AMC officers has a significant influence on improving FOD supervision. The coefficient of determination is 98.2% and the remaining 1.8% is influenced by variables outside the research. Hypothesis testing shows that the performance factors of AMC officers influence the growth of FOD monitoring at the Air Side of Adi Soemarmo Airport, Solo. This was reinforced by the majority of respondents expressing their agreement, especially with regard to the knowledge possessed by AMC officers regarding good work and providing good work results.

Operational Analysis of the Apron Movement Control (AMC) Unit in Handling Aircraft at Abdulrachman Saleh Airport Apron Malang

Apron Movement Control (AMC) is an airport personnel who has a license and rating to carry out duties as responsible for flight operations, supervision, aircraft movement, vehicle traffic, passengers and cleanliness supervision in the airside area and records flight data on the apron. Supervision carried out by AMC aims to create flight security and safety and create discipline from service users which can affect activities on the air side. The purpose of this study was to find out how the Apron Movement Control (AMC) Unit Standard Operational Procedure is in handling aircraft on the apron and the obstacles faced by the AMC unit at Abdulrachman Saleh Airport Malang. This research is a qualitative research using primary data and secondary data. Data collection techniques used are observation, interviews and documentation. The observation is to conduct a review or direct observation in the working area of the AMC unit. The interviews in this study were AMC officers consisting of the head of the AMC unit and 2 personnel. The documentation is collecting data at the time of observation and interviews, as well as taking pictures during field activities. The results of this study can be concluded that the Standard Operational Procedure unit Apron Movement Control (AMC) in handling aircraft on the apron, namely service and supervision. Services, namely arranging aircraft movements, plotting parking stands, services for emergency aircraft using follow me vehicles. Then the supervision referred to is supervision of vehicle traffic, movement of people/passengers, loading and unloading of goods, routine inspections of FOD, supervision during refueling, and when the engine is running up. The performance of AMC officers is said to be good because they carry out their duties in accordance with the Standard Operating Procedure (SOP) from the Ministry of Transportation and UPT. Obstacles in operational activities, namely the determination of parking stands still refers to the Indonesian Air Force and radio communications that often break up between ATC and AMC, AMR's accurate data is delayed in entering ATC and GH/airline units, heavy damage to aprons and taxiways, and airlines are late in delivering flights schedule. The solution to this problem is that the AMC unit holds internal and external meetings with ATC, GH and the Indonesian Air Force, so that the three parties can determine the best solution regarding flight operations.

핀-튜브 열교환기에서 불균형적 착상의 영향에 대한 연구

The aim of this study was to investigate effect of non-uniform frost deposition on fin-tube heat exchangers. Frost deposition phenomena mainly occur in an outdoor unit of a heat pump system because the temperature of the evaporator fin surface is lower than the dew point temperature of the intake air. To minimize performance drop of the evaporator, it is important to consider frost deposition pattern and its impact on the evaporator heat exchanger. As a first step, an efficient simulation model of the fin-tube heat exchanger under frosting condition was introduced and verified with experimental data. Frost non-uniformity was then investigated in terms of two different types of frost non-uniformity: through-plane non-uniformity and in-plane non-uniformity. As a result, it was found that the through-plane non-uniformity was dependent on air intake amount other than air temperature or humidity conditions. It was also found that the heat exchanger with in-plane non-uniformity had more severe degradation of heat transfer rate, although it might relieve the overall air side pressure drop.

Multi-objective optimization of non-uniform plate heat exchanger with dimples/protrusions for heat recovery of setting machines

The setting machine exhaust gas contains a large number of fiber particles and micro oil droplets, which are adhesive and flammable. This leads to difficulties in waste heat recovery of the exhaust gas. In this article, numerical and experimental studies of a non-uniform plate heat exchanger with dimples/protrusions for waste heat recovery of setting machines are carried out. Based on the three-dimensional fluid-thermal-structural coupling method, the regenerative process between gas and air are investigated numerically with low Reynolds number turbulence model. The effect of the structural parameters (protrusions diameters, protrusions spacing and plate spacing) and operation parameters (air inlet temperature, gas and air flow rate) on the heat transfer performance are discussed. The multi-objective optimization of the plate regenerator is conducted by Box-Behnken Design and Nondominated Sorting Genetic Algorithm II to maximize the thermal performance coefficient and minimize entransy dissipation number. It is found that when D1, H1 S1, D2, H2, S2 are 9 mm, 7 mm, 161 mm, 9 mm, 8 mm and 153 mm respectively, the heat exchanger has the best heat transfer performance. Compared with the original model, the heat transfer rate of the optimized heat exchanger is increased by 3.9%, the thermal performance coefficient of the air side and flue gas side is increased by 5.7% and 5.9% respectively, and the entransy dissipation number is reduced by 24.6%.

Construction of micro/macro‐scale Janus polypeptoid‐based two‐dimensional structures at the air–water interface

AbstractJanus two‐dimensional (2D) polymeric materials present asymmetric dual surfaces that enable a variety of applications of biosensors, catalysts, drug delivery, etc. This work reports the evaporation‐induced interfacial self‐assembly of amphiphilic block copolymer poly(ethylene glycol)‐b‐poly(N‐(2‐phenylethyl) glycine) (PEG‐b‐PNPE) at the air–water interface. The PEG‐b‐PNPE was initially assembled into a monolayer with a uniform thickness of ~2.5 ± 0.1 nm, which was mechanically compressed into a bilayer structure by Langmuir–Blodgett (LB) technology as surface pressure is exceeding the critical collapse pressure. Both monolayer and bilayer nanostructure span over hundreds of microns in both dimensions. The surface contact angle of the sample was measured by dynamic/static optical contact angle/interface tensiometer, which showed asymmetric wettability on the air side and the water side. The evolution from a monolayer to a bilayer was further tracked by an atomic force microscope. By the evaporation‐induced interfacial self‐assembly at the air–water interface, we also prepared macroscopic Janus films with a diameter of ~3.5 mm. The obtained micro/macro‐scale 2D materials have potential applications in nanoscience and biomedicine.