Discover the Latest Journals in Architecture and Architectonics
Architecture is both the process and product of planning, designing, and constructing a building or structure, while architectonics is the scientific study of architecture itself. Architectural works are often considered important cultural symbols and works of art, and we often identify past civilizations with their architectural heritage.
Architecture and Architectonics
Abstract
This work aims to numerically study a latent heat storage system consisting of a tank filled with a phase change material, through which a heat transfer fluid flows. A comprehensive parametric study was conducted to analyze the thermal and dynamic performance of the system, examining the effects of various parameters, including tank height, heat transfer fluid mass flow rate, phase change material layer thickness, and the amount of energy stored during the charging process.
The system was modeled using computational fluid dynamics to simulate the phase change phenomena. It was seen that a higher mass flow rate led to a shorter storage time and reduced stored energy, with values of 19.25 kWh for a flow rate of 0.6 kg s−1 and 20.16 kWh for a flow rate of 0.4 kg s−1.
Abstract
Delivering Advanced Driver Assistance System functionalities depends on acquiring high-resolution image data from vehicles. Adverse weather and nighttime degrade image quality, impacting object detection accuracy. This paper addresses this issue by proposing a novel solution using the vehicle's Global Positioning System location and timestamp to query weather via a weather application programming interface. By obtaining weather details at the time and location of data collection, image quality is enhanced through pre-processing tailored to specific weather conditions. Using the Detection in Adverse Weather Nature dataset, the method improves You Only Look Once version 8 software detection accuracy by up to 15% compared to baseline performance across various weather conditions, enhancing Advanced Driver Assistance System reliability.
Abstract
As a result of global warming, Hungary's climate characteristics are shifting towards hot, dry conditions, for which the local building stock is not prepared. The research focuses on the effectiveness of the application of the “secondary building skin”, a passive architectural solution that supports to create the required thermal comfort in buildings. The applicability of the solution is supported by measurements and simulations, combining the energy renovation possibilities of Hungarian “cube-type houses” and adaptive technology that migrates with climate. The article examines the reduction of heat load on buildings and its impact on the indoor operative temperature. Also, it shows how the visual appearance of the secondary building skin can become an architectural character element as a tool for sustainability.
Abstract
Due to the transfer of environmental heat into buildings, requires consuming large amounts of electrical energy for absorbed heat gain. This study used sunflower seed husks as one of the industrial residues, as a waste material. These husks were ground into a nano-powder and blended with cement at a weight of 1:5. From this mixture made of 12 mm diameter balls then added back to the building block mix during formation. The thermal behavior of the walls constructed from these blocks was tested in the climate of Baghdad, during daylight hours on the 21st day of each summer month (May – July) in 2022. The optimal addition ratio was 4%, which achieved a heat load of 176.2 kW and an electricity consumption of 110.2 kWh, resulting energy savings of 18.1% compared with a traditional wall.
A kupolák tisztelete
Az egykupolás dzsámik eredete és térhódítása az oszmán építészetben II.
Respect for Domes
The Origin and Spread of the Single-Domed Mosques in the Ottoman Architecture II.
Az oszmán építészet a turisták számára egyet jelent a Kék mecsettel, a szakemberek többsége számára pedig a bizánci építészet, különösen pedig a Hagia Sophia másolásával. Igaz, Bizánc és Konstantinápoly, amely akkor szinte egyet jelentett a művelt világgal, vonzotta és inspirálta is a szomszédságában államot alapító oszmánokat. De volt ezzel így más is, akár tanulmányunk tekintetében szűkebb értelemben a kupolák esetében is. A Földközi-tenger keleti medencéje és a mai Közel-Kelet évezredes hagyományokkal bír a boltozatok és kupolák alkalmazása terén. Különösen igaz ez Iránra, ahol az egyéb építőanyagok híján rákényszerültek ezeknek a szerkezeteknek az alkalmazására és továbbfejlesztésére is. Ez a szeldzsuk birodalomban olvadt össze a nomád törökség kupolatisztelő hagyományaival, és ez az ötvözet termékenyítette meg az oszmán építészetet, amelyet természetesen színesített a bizánci, sőt az itáliai reneszánsz építészet is. Az oszmán szakrális építészet legjellegzetesebb produktuma az egykupolás dzsámi, mely szeldzsuk alapokból fejlődött ki, de már a 14. század első harmadától oszmán alkotásnak tekinthető. Akár önálló épületként, akár összetettebb tér uralkodó elemeként alkalmazzák, az egykupolás dzsámi lesz az oszmán legmeghatározóbb építészeti eleme. Ennek kialakulásával és fejlődésével foglalkozik a jelen tanulmány, mely két részletben olvasható. Az első részt előző számunkban közöltük.
Abstract
Inclined duct has many engineering applications like air conditioning system, solar collector and cooling system of photovoltaic module. Forced convection of air flowing through an inclined square porous duct is described in this paper. The experiments by varying Reynolds number, heat flux and inclination angle have been conducted under Reynolds number at 8355, 13485 and 18600 range, heat flux 480, 990 and 1520 W m−2 and inclination duct angle 30°–60°. The porous pad used was zig-zag metallic wire mesh with porosity equals 0.99. The results show that Nusselt number is increased with increasing heat flux and Reynolds number at all orientations. At the same Reynolds number and heat flux, Nusselt number is enhanced about 4.7% with increasing inclination angle from 30° to 60°. Nusselt number is to be 24%, 21% higher than horizontals porous duct at inclination angle 60°–30°, respectively. Many empirical relations have been obtained.
Abstract
The study aims to develop a predictive model for crack propagation in a blade's plate. The finite element method is employed to simulate the blade's entire structure. ANSYS software is utilized to model the plate and determine its natural frequencies under cyclic loading. The results obtained through the finite element method are compared with data from the literature to confirm the validity of the proposed model. Both natural and forced vibrations of the blade's plate, including double-edge cracks, are analyzed. Various crack sizes and locations are modeled to investigate their impact on the blade's behavior. The proposed model effectively identifies the crack in the plate that forms earlier and achieves a high accuracy in predicting the crack's size and location under cyclic loading.
Abstract
Stress analysis is a branch of mechanical engineering that investigates the stress and strains generated in materials when subjected to forces. Photoelasticity is one of the well-known methods in plane stress analysis. This analysis was conducted to show the superiority of the photoelasticity method in investigating the stresses of the spur gear teeth. Four cases of various spur gear teeth profiles have been presented. The principal stress difference was calculated experimentally for each case and it was validated numerically and the error percentage reached 4.15%. An enhancement percentage was achieved at 33% in case 3 leading to the fact that using the asymmetric spur gear teeth reduces the generated stresses.
Abstract
The in-plane tensile-compressive test is a key method for studying plastic behavior under complex loading. This study presents a novel anti-buckling fixture designed for cyclic testing. The device can conduct monotonic tensile-compressive tests with deformations of up to 10%. The specimen is encased in an acrylic block for structural stability and to prevent buckling. Its application and impact on the force-displacement curve have been addressed. The AutoGrid optical strain measurement system was integrated with the fixture for strain analysis, and its accuracy was systematically evaluated. The developed fixture is well-suited for accurately describing the plastic behavior of materials under complex loading paths and it aids in precisely determining the kinematic hardening characteristics.
Abstract
In a manuscript the results of research of the characteristics of a flat air stream with a variable mode of its flow into the room depending on time and current position are presented. Analytical equations for calculating the flat air jet parameters were derived. Numerical modeling of the incoming air stream in the variable mode was carried out due to CFD FLUENT (ANSYS FLUENT) software using the k–ε turbulence model. Method of a four-parameter numerical simulation of the flat incoming airflow in the variable mode is devised.
