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Öğe A RESEARCH ON THE PHYSICAL FEATURES OF CONCRETES WITH FERRO-CHROMIUM SLAG(Bartin University, 2020) Biçer, AyşeIn this study, waste ferrochromium slag is used instead of using natural aggregate, and low density concrete is produced. For this purpose, slag aggregate is mixed with 10%, 30%, 50% and 70% cement to produce samples. The tests applied to the samples show that an increase in slag in the mix decreases thermal conductivity, specific heat capacity and comprehensive and tensile strength while porosity and water absorption capacity increases. If slag aggregated concrete is used for the structural member of a building, i) factory waste ferro chromium slag will be utilized and contributed to economy. ii) The use of slag in building concrete, bricks, briquettes and panel walls will lower the heating expenses and facilitate energy saving.Öğe ANALYSIS OF CLIMATIC PARAMETERS WITH METEOROLOGICAL DATA OF EAST ANATOLIA REGION OF TURKEY(Bartin University, 2021) Biçer, Ayşe[Abstract Not Available]Öğe CERTAIN PHYSICAL PROPERTIES OF THE BUILDING STONES FROM ELAZIG-TUNCELI-ERZINCAN-BAYBURT PROVINCES(Bartin University, 2021) Biçer, Ayşe[Abstract Not Available]Öğe Çukurova Yöresi Yapı Taşlarının Fiziksel Özellikleri Üzerine Bir Araştırma(2020) Biçer, AyşeBu çalışmada, Adana ve yöresinde bina yapı elemanı olarak kullanılan Saimbeyli taşı, Kozan taşı, Kadirli taşı ve İçel taşları incelenmiştir. Amaç bölgede bina yapı elemanı olarak kullanılan bu taşların ısıl ve mekanik özelliklerini araştırarak bina yapı elemanı olarak özelliklerinin belirlenmesidir. Her taş için, iki farklı ocaktan numuneler alınmış kimyasal içerikleri ve oranları belirlendikten sonra, ısıl iletkenlik, özgül ısı kapasitesi, basınç gerilmesi, su emme, teneffüs kabiliyeti ve aşınma oranları deneylerine tabi tutulmuştur. Sonuçlar, geleneksel yapı malzemeleri ile karşılaştırıldığında, taşların mekanik değerleri kabul edilebilir fakat ısıl özellikleri yönünden zayıf olduğu görülmüştür.Öğe The effect of fly ash and pine tree resin on thermo-mechanical properties of concretes with expanded clay aggregates(Elsevier, 2021) Biçer, AyşeWe used expanded clay (EC) and cement, fly ash (FA), and pine tree resin as binders instead of conventional aggregate to produce low-density construction material. The EC ratios were 10 %, 20 %, 30 %, 40 %, and 50 %. The FA ratios were 10 %, 20 %, and 30 %. The pine tree resin was 1% of the total volume. The samples were dried for 28 days at room temperature, and then measurements were carried out. We produced 48 samples divided into four groups: no additive (Group 1), FA added (Group 2), resin added (Group 3), and FA + resin added (Group 4). Thermal and mechanical tests were performed to determine where in buildings the low-density construction material could be used. When EC rate increased from 0 % to 50 %, the thermal conductivity coefficient and compressive strength decreased by 55.4 % and 35.1 % only with the effect of the EC aggregate; 13.0–13.69 % with the effect of FA only, 8.4–15.6 % and iii) 17.6–21.86 % and 58.6?17.13% by the effect of FA & resin. The lowest thermal conductivity coefficient was 0.168 W/mK. The highest compressive strength was 24.68 MPa. All samples had a water absorption rate lower than 30 %.Öğe Effect of pine resin on the thermal and mechanical properties of plaster with pumice(Dicle Üniversitesi, 2021) Biçer, AyşeThis study investigated the effect of pine resin on the thermal and mechanical properties of gypsum plasters with pumice aggregate. Pumice rock was crushed and sieved into three grain sizes (2-5 mm, 5-8 mm, and 8-12 mm). Each group was mixed separately with non-resinous and resinous gypsum in the proportions of 20%, 40%, 60%, and 80%. The resin was added to the gypsum at 2% of its total weight (gypsum + pumice) to generate artificial pores and improve the binding power of the gypsum. Twenty-four samples were produced in different combinations. The test results showed that resin reduced the thermal conductivity and improved the compressive stress of the plasters. They had a water absorption of greater than 30%, suggesting that they can be used in interior plasters and painted with any paint. In conclusion, they can be used as interior plasters for both insulation and strength.Öğe Experimental investigation of a solar air heater with copper wool on the absorber plate(Taylor & Francis, 2020) Biçer, Ayşe; Devecioğlu, Atilla Gencer; Oruç, Vedat; Tuncer, ZaferThe thermal performance of a novel solar air heater was experimentally studied in this paper. For this aim, a new solar air collector was designed using copper wool on its absorber plate to be a selective surface. Hence, the area of absorber plate was enhanced to absorb much amount of heat energy. The experimental study was conducted for both cases (presence and absence of copper wool on the absorber plate) to determine the effect of copper wool on the thermal efficiency of the collector. The mass flow rate values of the study were 0.035 and 0.044 kg/s. The results pointed out that fluid temperature at outlet of collector with copper wool was increased by about 8 to14%. Therefore, these collectors may be suitable for space heating and drying of food applications. However, copper wool caused more pressure loss through the collector by 40% compared to simple case of collector. The thermal efficiency of the collectors was obtained as 34 to 83% depending on experimental variable parameters. Similarly, effective efficiency of collectors was computed to be 24 to 70%. It is found that efficiency of the collector was improved when using copper wool on the absorber plate as well as increasing mass flow rate of air.Öğe Experimental investigation on the temperature distribution within a cylindrical adiabatic container as time-dependent and conjugate(Elsevier, 2021) Biçer, AyşeIn this study, the time dependent heating of a solid cylindrical body replaced within an isolated cylindrical container and reciprocally the simultaneous heating of the fluid (air/water) inside the container is experimentally investigated. For this purpose a double-walled cylindirical container of 25 cm diameter is prepared and isolated by using a 2 cm thick layer of styropor between the walls. An aluminium cylinder heated within some other adiabatic media then placed coaxially inside this container. Heat transfer problem socreated is assumed to be axially symmetric and accordingly the temperature measurements are taken at five stations on three horizontal straight lines all chosen to be on the same vertical plane passing through the common axis. At the end of the study, the following results were obtained: i) The equilibrium state between metal and fluid was reached in 120 min in air environment and 25 min in water environment. ii) It has been found that the cooling rate of the metal in the aqueous environment is approximately 5 times faster than the air environment. iii) The cooling and warming speed was faster in the first 30 min in the air environment and in the first 5 min in the water environment compared to the other time periods.Öğe INVESTIGATION OF EXPANDED CLAY AGGREGATE AND PINE RESIN ADDED PLASTER WITH CEMENT IN BIOMEDICAL MATERIAL STORAGE INSULATION(Niyazi BULUT, 2024) Biçer, Ayşe[Abstract Not Available]Öğe Investigation of waste EPS foams modified by heat treatment method as concrete aggregate(Elsevier, 2021) Biçer, AyşeThe method for the recycling of expanded polystyrene foam (EPS) in waste state, which causes a significant environmental pollution, is presented in this study. With this method, modified EPS aggregate was produced by heat treatment applied on 10 × 10 × 10 mm EPS aggregates and the production of a new type of lightweight concrete was aimed by means of being used instead of sand. This disadvantage of EPS aggregate concretes with low compressive strength values has been turned into an advantage through heat treatment method. In this method, the heat treatment process temperatures were determined as 75 °C, 100 °C and 125 °C, while the durations of processes were determined to be 15, 30, 45 and 60 min. The ideal heat treatment temperature and time is determined to be 15 min at 125 °C. 16 samples with various aggregate rates were produced, and the following results were obtained from the tests carried out: i) During 15 min of heat treatment at 125 °C, while the volume change decreased by 12 times, the unit weight increased by 21 times and turning into the form of a synthetic lightweight aggregate. ii) Modified EPS aggregated concretes can be used in building parts where semi-carrier lightweight concrete is required with its strength (with values of 12.66–15.83 MPa up to 40% volumetric ratio. iii) Thermal conductivity coefficients of new concretes vary between 0.154 and 0.481 W/mK. It is conferred that modified EPS aggregate concretes can be used both for insulation purposes and as semi-carrier lightweight concrete.Öğe A Research On The Physical Features Of Concretes With Ferro-Chromium Slag(Bartın Üniversitesi, 2020) Biçer, AyşeIn this study, waste ferrochromium slag is used instead of using natural aggregate, and low density concrete is produced. For this purpose, slag aggregate is mixed with 10%, 30%, 50% and 70% cement to produce samples. The tests applied to the samples show that an increase in slag in the mix decreases thermal conductivity, specific heat capacity and comprehensive and tensile strength while porosity and water absorption capacity increases. If slag aggregated concrete is used for the structural member of a building, i) factory waste ferro chromium slag will be utilized and contributed to economy. ii) The use of slag in building concrete, bricks, briquettes and panel walls will lower the heating expenses and facilitate energy saving.Öğe A Study on Foods That Boost The Immune System During The Covid-19 Pandemic(Malatya Turgut Ozal University, 2020) Biçer, AyşeThe coronavirus (COVID-19) has spread rapidly across the world and been declared a pandemic by the World Health Organization. One of the ways to combat COVID-19 and other infectious diseases is to boost the immune system. It is, therefore, of utmost importance to eat well and consume foods that boost the immune system. This study investigated the effect of Nigella sativa (black seed) oil, silverberry, date, grape, Asphodelus aestivus, Rheum ribes, and carob on the immune system. There is no cure yet for Covid-19. However, scientists and healthcare professionals recommend that people eat foods that are rich in vitamins and minerals to bolster their immune system to fight COVID-19 because immunodeficiency is the Achilles' heel of Covid-19 pandemicÖğe Temperature and Relative Humidity Models of The Malatya City(Malatya Turgut Ozal University, 2020) Biçer, AyşeIn this study, the temperature changes Malatya provinces located in the Euphrates Basin are analyzed and modeled on the basis of 24 years of observation process (1996-2019). Relative humidity models were analyzed by observing the yearly mean temperatures of provinces, the lowest mean temperatures of winter months (December, January and February) and the highest mean temperatures of summer months (June, July and August). With the help of these models; temperature and humidity estimations can be made for future years and these models can be used in energy related studiesÖğe THE EFFECT OF DAM RESERVOIRS IN FIRAT BASIN TO THE OUTDOOR TEMPERATURE PARAMETERS OF THE REGION CITIES(Bartin University, 2022) Biçer, Ayşe[Abstract Not Available]Öğe THE EFFECT OF PINE TREE RESIN ON THE THERMAL AND MECHANICAL PROPERTIES OF PLASTER WITH EXPANDED CLAY(Bartin University, 2023) Biçer, Ayşe; Yeşilkaya, Hatice[Abstract Not Available]Öğe THERMAL AND MECHANICAL PROPERTIES OF BUILDING STONES IN AFYON AND KARAMAN REGION(Bartın Üniversitesi, 2020) Biçer, AyşeIn this study, some of the physical properties of the Seydiler and Sorkun stones from Afyon and Kızılören and Kazım Karabekir stones from Karaman which have been used extensively as a building material in cities and even in neighbor cities were investigated. Used as construction components, these stones are highly praised by the people living in those areas due to their ease of handling and convenient thermal characteristics. The aim is to determine the thermal and mechanical properties of these stones. Samples were taken from two different quarries for each stone and after chemical analysis, they were subjected to thermal conductivity, specific heat capacity, water absorption, inhalation ability and mechanical strength tests. The results were compared with other building materials, especially in terms of energy saving, strength and comfort aspects.Öğe The Thermal and Mechanical Properties of the Building Stones in Eskisehir - Kayseri and Kırsehir regions(Malatya Turgut Özal Üniversitesi, 2021) Biçer, AyşeIn this study, certain physical properties of Derbent (Eskisehir), Tomarza (Kayseri) and Mucur (Kırsehir) stones, which are used as building materials in the relevant regions, are subjected to analysis. For each stone, the samples were taken from two separate quarries, after which the chemical analysis, thermal conductivity, compression stress, water absorption, breathability and abrasion tests were carried out. The results obtained from the tests carried out are as follows: i) It is understood that Eskisehir Derbent tuff and Tomarza stones can be used as briquettes, bricks or aggregates as lightweight concrete thanks to their low thermal conductivity values (0.355 W/mK and 0.581 W/mK) and heat insulation properties. ii) Kırşehir Mucur stone shows that it can be used in load bearing wall material and abrasion resistant flooring with 88.46 MPa compressive strength and 0.4% volume abrasion values. iii) It has also been conferred that three stones have rich reserves and low costs. The results are compared with other building materials, especially in terms of energy saving, strength and comfort conditions.
