NYME Repository of Dissertations
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Integrating Traditional Woodcarving Techniques with Contemporary Construction: Enhancing the Energy Efficiency of Traditional Malay Houses
No full textThis dissertation explores integrating traditional woodcarving designs into modern architecture, focusing on enhancing natural ventilation (NV) while preserving cultural heritage. The study examines the ventilation performance of Malay woodcarving panels, particularly those in Rumah Limas Hutan Bandar MBJB. It compares them with designs inspired by the Székely Gate motif, applied in contemporary houses in Johor, Malaysia and Szombathely, Hungary. Additionally, the study evaluates the role of houses with woodcarving ventilation panels, fully opened vents, no vents and mechanical ventilation featuring narrow diffuser-type inlets in optimising indoor airflow and thermal comfort.
The research employs a multi-faceted approach, combining wind analysis conducted in Johor Bahru, climatic analysis for Szombathely using Climate Consultant 6.0, and computational fluid dynamics (CFD) simulations to assess the impact of woodcarving ventilation panels, opened vents, closed vents and mechanical ventilation on indoor airflow. These situations are reinterpreted within a 10m x 6m x 3.5m building configuration to evaluate their effectiveness in facilitating airflow under extreme climatic conditions in both Johor and Szombathely. The relationship between practical ventilation and cultural aesthetics can be better understood by drawing comparisons with traditional Malay homes like Rumah Tok Su and Rumah Limas Hutan Bandar MBJB.
According to the results, woodcarving panels can help preserve culture while greatly improving natural airflow. This research promotes sustainable architecture practices by proposing an approach that combines contemporary technology with vernacular design. Building design becomes more sustainable and heritage conscious because of the basis it creates for future study into culturally inspired architectural solutions that address NV and climate adaptability
Acetylation of European hornbeam (Carpinus betulus L.) wood for outdoor applications
No full textMany European wood species have low natural durability which makes them unable to be used for exterior applications without additional protection. In this work, European hornbeam wood (Carpinus betulus L.) was industrially acetylated in order to improve its properties and widen its usage.
Thorough literature research was made on the availability and future of European hornbeam wood, from forestry and wood industry point of view. Then, the current state of research was explained regarding the modification of this species. Previous work of my master thesis on acetylated hornbeam discussed improved dimensional stability, mechanical properties, durability against fungi in laboratory conditions, and aesthetical color.
In order to understand the changes in product-related properties after acetylation, chemical analysis was carried out to determine the chemical components, pH, buffering capacity, and content of organic extractives. These findings were evaluated by Fourier-transform infrared spectroscopy (FTIR) and high-performance liquid chromatography (HPLC). After acetylation, changes in microscopic structure were examined by bright-field microscopy and scanning electron microscopy.
In a six-year-long test in soil, acetylated hornbeam showed no signs of fungal decay or insect damage, except for one stake, that was locally attacked by brown rot after 1.5 years. The decayed area was less acetylated compared to the good performing stakes, proven by FTIR analysis.
Acetylated hornbeam is more hydrophobic, having increased contact angle and lower surface energy. This influences its bonding and coating properties. Compared to untreated hornbeam, the shear strength was reduced in dry conditions, but showed enhanced strength when soaked in cold or boiling water. The same was experienced in the bonding strength results with polyvinyl acetate and polyurethane adhesives.
When exposed to ultraviolet light, acetylated hornbeam fades and grays similarly to untreated hornbeam, based on test results of natural irradiation (2 years) and artificial (200 hours) irradiation. Besides getting a patina, it remains intact, without cracking or warping, like untreated hornbeam. For the case when photostability is desired, various coatings were tested, among which three dark pigmented stains showed the best results.
According to these results, use classes, product groups, market share of acetylated hornbeam were determined, supplemented by SWOT analysis and related literature, in order to give a full picture of it as a product
DIGITÁLIS ÁTÁLLÁS LEHETŐSÉGEI A MAGYAR FAIPARI VÁLLALATOKNÁL, KÜLÖNÖS TEKINTETTEL A GYÁRTÁSOPTIMALIZÁCIÓRA
No full textDigitális átállás lehetőségei a magyar faipari vállalatoknál, különös tekintettel a gyártásoptimalizációra
Ipari szakértői munkám során néhány éve szoros kapcsolatba kerültem az Ipar 4.0 témakörrel, ahol érdekesnek, érdemesnek éreztem egy felmérés kidolgozását, mely választ adhat arra, hogyan azonosítható gyorsan az Ipar 4.0 fejlesztési potenciál, illetve, hogy milyen gyakorlati következtetései lehetnek egy ilyen alkalmazott kutatásnak.
Dolgozatom célja, hogy a több évre visszanyúló ipari szakértői tapasztalataimat és az alkalmazott kutatási módszereket egységbe foglalva hasznosítható eszközt adjak az ipari kollégák, illetve a vállalatok kezébe egy ún. Ipar 4.0 érettségi felmérés útján, a felsőoktatásban is felhasználható eredményekkel.
Első lépésként szakirodalmi kutatást végeztem, ennek mentén vázolom a releváns Ipar 4.0 érettséget felmérő eszközöket, illetve magyarázom meg választásomat az alkalmazott kutatási módszert illetően.
Ezt követően részletesen ismertetem a 21 termelő cégnél végzett kérdőíves kutatás eredményeit.
Az alkalmazott kutatás másik fő vonala egy, az Ipar 4.0 megoldásokat átfogóan már alkalmazó fémipari cég vizsgálata, akik faipari szektorba szállítanak ablak vasalatokat, tehát összekötő kapocs is van a vizsgált iparággal.
Az ő példájukon keresztül tudom számokkal is alátámasztani az Ipar 4.0 fejlesztések kézzelfogható, gyakorlati eredményeit.
Célom, hogy a dolgozattal kimutathatóvá, azaz alátámasztottá tegyem, hogy a folyamatszervezés az alapja egy későbbi sikeres Ipar 4.0 fejlesztésnek