Başaran, Tahsin
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Başaran, T
Basaran, Tahsin
Başaran, T.
Basaran, T.
Basaran, T
Basaran, Tahsin
Başaran, T.
Basaran, T.
Basaran, T
Job Title
Email Address
tahsinbasaran@iyte.edu.tr
Main Affiliation
02.02. Department of Architecture
Status
Current Staff
Website
ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID
Sustainable Development Goals
1NO POVERTY
2
Research Products
2ZERO HUNGER
3
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3GOOD HEALTH AND WELL-BEING
3
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4QUALITY EDUCATION
6
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5GENDER EQUALITY
0
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6CLEAN WATER AND SANITATION
5
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7AFFORDABLE AND CLEAN ENERGY
14
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8DECENT WORK AND ECONOMIC GROWTH
9
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9INDUSTRY, INNOVATION AND INFRASTRUCTURE
15
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10REDUCED INEQUALITIES
0
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11SUSTAINABLE CITIES AND COMMUNITIES
10
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12RESPONSIBLE CONSUMPTION AND PRODUCTION
11
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13CLIMATE ACTION
13
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14LIFE BELOW WATER
5
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15LIFE ON LAND
5
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16PEACE, JUSTICE AND STRONG INSTITUTIONS
0
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17PARTNERSHIPS FOR THE GOALS
0
Research Products
Documents
27
Citations
474
h-index
15
Documents
30
Citations
439
Scholarly Output
45
Articles
26
Views / Downloads
644806/119184
Supervised MSc Theses
11
Supervised PhD Theses
6
WoS Citation Count
403
Scopus Citation Count
440
Patents
0
Projects
3
WoS Citations per Publication
8.96
Scopus Citations per Publication
9.78
Open Access Source
32
Supervised Theses
17
| Journal | Count |
|---|---|
| Energy and Buildings | 6 |
| Applied Thermal Engineering | 2 |
| International Journal of Architectural Heritage | 2 |
| International Journal of Biometeorology | 2 |
| Data in Brief | 1 |
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Scopus Quartile Distribution
Competency Cloud
45 results
Scholarly Output Search Results
Now showing 1 - 10 of 45
Article Citation - WoS: 23Citation - Scopus: 25Analysing Visual Pattern of Skin Temperature During Submaximal and Maximal Exercises(Elsevier Ltd., 2016) Balcı, Görkem Aybars; Başaran, Tahsin; Çolakoğlu, MuzafferAims of this study were to examine our hypotheses assuming that (a) skin temperature patterns would differ between submaximal exercise (SE) and graded maximal exercise test (GXT) and (b) thermal kinetics of Tskin occurring in SE and GXT might be similar in a homogenous cohort. Core temperature (Tcore) also observed in order to evaluate thermoregulatory responses to SE and GXT. Eleven moderately to well-trained male athletes were volunteered for the study (age: 22.2 ± 3.7 years; body mass: 73.8 ± 6.9 kg; height: 181 ± 6.3 cm; body surface area 1.93 ± 0.1 m2; body fat: 12.6% ± 4.2%; V̇O2 max: 54 ± 9.9 mL min-1 kg-1). Under stabilized environmental conditions in climatic chamber, GXT to volitional exhaustion and 20-min SE at 60% of VO2 max were performed on cycle ergometer. Thermal analyses were conducted in 2-min intervals throughout exercise tests. Tskin was monitored by a thermal camera, while Tcore was recorded via an ingestible telemetric temperature sensor. Thermal kinetic analyses showed that Tskin gradually decreased till the 7.58 ± 1.03th minutes, and then initiated to increase till the end of SE (Rsqr = 0.97), while Tskin gradually decreased throughout the GXT (Rsqr = 0.89). Decrease in the level of Tskin during the GXT was significantly below from the SE [F (4, 40) = 2.67, p = 0.07, ηp 2 = 0.211]. In the meantime, Tcore continuously increased throughout the SE and GXT (p < 0.05). Both GXT and SE were terminated at very close final Tcore values (37.8 ± 0.3 °C and 38.0 ± 0.3 °C, respectively; p > 0.05). However, total heat energies were calculated as 261.5 kJ/m2 and 416 kJ/m2 for GXT and SE, respectively (p < 0.05). Thus, it seems that SE may be more advantageous than GXT in thermoregulation. In conclusion, Tcore gradually increased throughout maximal and submaximal exercises as expected. Tskin curves patterns found to be associated amongst participants at both GXT and SE. Therefore, Tskin kinetics may ensure an important data for monitoring thermoregulation in exercise.Master Thesis An Investigation of Transient Thermal Behaviors of Building External Walls(Izmir Institute of Technology, 2015) Pekdoğan, Tuğçe; Başaran, TahsinHeat transfer problem of the building opaque wall surfaces are highly important for providing thermal comfort for different climatic conditions and orientations. In this study, the insulation models with external, internal and center positioned insulation materials are parametrically analyzed regarding their time dependent thermal behaviors. One-dimensional time-dependent heat conduction equation is investigated by solving via implicit finite difference method for summer and winter climatic conditions; and north, south, east and west orientations. Meteorological data for Ankara, Erzurum, İstanbul and İzmir, which are cities with different climatic conditions, are used in these calculations. The results indicate that, sandwich wall insulated type gives more convenient results regarding the heating loads for winter and cooling loads for summer, for each investigated city and directions.Article Estimation of Heat Production Rate Using Thermal Data During Exercise in Indoor Environments: a Study of Heat Storage Rate in Male Athletes(Springer, 2024) Balcı, Görkem Aybars; Avcı, Ali Berkay; Çolakoğlu, Muzaffer; Başaran, TahsinThe increasing preference for indoor exercise spaces highlights the relationship between indoor thermal environments and physiological responses, particularly concerning thermal comfort during physical activity. Determining the metabolic heat production rate during exercise is essential for optimizing the thermal comfort, well-being, and performance of individuals engaged in physical activities. This value can be determined during the activity using several methods, including direct calorimetry measurement, indirect calorimetry that uses analysis of respiratory gases, or approximations using collected data such as speed, body mass, and heart rate. The study aimed to calculate the metabolic heat production rate by infrared thermal evaluation (ITE) based on the body's thermal balance approach and compare it with the values determined by indirect calorimetry (IC). Fourteen participants volunteered for the study, using a cycling ergometer in a controlled climatic chamber. After the familiarization sessions, maximal O2 intake levels (VO2max) were determined through maximal graded exercise tests. Subsequently, constant work rate exercise tests were performed at 60% of VO2max for 20 min. The metabolic heat production rates were calculated by IC and ITE for each athlete individually. Respiratory gases were used to determine IC, while body skin and core temperatures, along with physical environmental data, were applied to calculate ITE using the human body thermal balance approximation of ASHRAE. According to the results, heat storage rates were misleading among the body's heat transfer modes, particularly during the first 8 min of the exercise. ITE showed a moderate level of correlation with IC (r: 0.03-0.86) with a higher level of dispersion relative to the mean (CV%: 12-84%). Therefore, a new equation (ITEnew) for the heat storage rates was proposed using the experimental data from this study. The results showed that ITEnew provided more precise estimations for the entire exercise period (p > 0.05). Correlations between ITEnew and IC values were consistently strong throughout the exercise period (r: 0.62-0.85). It can be suggested that ITEnew values can predict IC during the constant work rate steady-state exercise.Doctoral Thesis Experimental and Numerical Investigation of a Heat Recovery Ventilation Unit With Phase Change Material for Building Facades(Izmir Institute of Technology, 2021) Pekdoğan, Tuğçe; Başaran, Tahsin; Tokuç, AyçaThis thesis presents a wall-integrated HRV unit design that stores latent heat thermal energy (LHTES). The system’s performance is tracked through experimental and numerical studies. The experimental tests of the unit took place in a controlled environment, where two HRV units are inside two wall-integrated ducts. The wall divides two conditioned spaces that represent indoors and outdoors. In one set of experiments, the commercially available system that stores sensible heat thermal energy (SHTES) with ceramic block. On another set of experiments, the newly designed LHTES system with the staggered tube bundle that contains phase change material (PCM). SHTES system shows the best performance in 2-minute, supply efficiency is 82% and exhaust efficiency is 67%. LHTES system shows the best performance in 20-minute and supply efficiency is 55% and exhaust efficiency is 30%. Numerical parametric studies on the HRV systems use the commercial CFD software ANSYS-FLUENT. These studies include the detailed flow and heat transfer analyses and the optimum operating times for two systems. As a result of these studies, the CFD results show good agreement with the experimental results. At the end of the thesis, the ability to increase the capacity of the HRV unit with PCM was investigated. In addition, the simulations for different climatic data were studied. According to the results, 12mm longitudinal, 12mm transverse pitch size for the ∅4.76mm tube is the most efficient system with total heat capacity of 45.77kJ. In addition, for different climates simulations, LHTES unit can be used throughout the year in Singapore.Conference Object Renovating a Lecture Hall With a Glass Roof: a Case Study of Performance Based Design(ÖKK-Editions, 2013) Atça, Emre; İlal, Mustafa Emre; Başaran, Tahsin; Kazanasmaz, Zehra Tuğçe; Durmuş Arsan, ZeynepIn practice, architects, due to time and budget constraints do not analyze designs and evaluate alternatives from the building physics perspective. They expect this analysis to be carried out by engineers. Engineers mostly get involved late in the design process, after key decisions are already finalized, leaving them powerless to solve problems efficiently. However, rapid advances both in computing and engineering have produced various simulation based tools for evaluating building performance that architects themselves can employ early in the design process. The proliferation of these tools throughout the architectural practice and education is necessary for achieving higher performance levels. In this study, the brand new Lecture Hall at Izmir Institute of Technology, Department of Mathematics that is in need of renovations to improve acoustic, visual and thermal comfort is diagnosed through measurements and the possibility of foreseeing, through simulations, the existing level of performance during the design stage is explored.Article Citation - WoS: 2A General Evaluation on Double Skin Facades(Yildiz Technical Univ, Fac Architecture, 2014) Inan, Tugba; Basaran, TahsinThis study examines the literature of double-skin facade systems over the last decade, and, with the help of tables and graphics, investigates their advantages and disadvantages. Moreover, a detailed comparison is made between double skin faade systems. The results of the study show that the greatest advantage (95%) of double skin facade systems is their provision of natural ventilation. Other advantages are highlighted according to their percentage as follows: An increase in interaction between user and environment because of the high proportion of transparency, support of heat and sound insulation, reduction in heat transmission and solar heat gain coefficient, an increase in thermal comfort, allowance of solar control elements between the two facade spaces, and protection of these elements from external environment conditions. The most commonly accepted disadvantage (72%) is overheating in the air space of the two facades. Other disadvantages are highlighted according to their percentage as follows: Problems related to a decrease in the amount of daylight entering the building, high investment costs, additional maintenance and repair costs, fire, and acoustic problems. In our country, architectural design decisions related to overheating must be taken so as to provide a positive contribution to energy performance and the applicability of these systems.Article Citation - WoS: 20Citation - Scopus: 17Optimizing Thermal Comfort in Physical Exercise Spaces: A Study of Spatial and Thermal Factors(Elsevier, 2024) Avcı, A.B.; Balci, G.A.; Başaran, T.Fitness centers have become famous for maintaining a healthy lifestyle. They require different thermal comfort conditions and higher fresh air supply rates than other indoor spaces. However, even well-designed centers may cause discomfort due to factors such as design decisions, ventilation, overheating, and overcrowding. The standards for fitness centers do not consider these specific requirements sufficiently, so this study focuses on understanding the thermal comfort requirements during physical exercise and evaluating spatial and thermal factors affecting the thermal environment around the body. The study investigated the ceiling height, lateral and frontal distances between machines, and vent locations as spatial factors and inlet temperature and air velocity as thermal factors. A thirty-minute moderate-intensity constant work rate exercise test was conducted in a controlled climatic chamber using a cycle ergometer with six healthy male participants. The experiment conditions were simulated in CFD software using the collected data. Once a validated simulation model was provided, computational models for different environmental and spatial scenarios for the five-person cycling class were generated. Using Taguchi L9 (34) orthogonal arrays method, nine spatial scenarios were simulated with three different thermal operations each. Optimal factor levels were determined by using thermal comfort conditions (based on predicted mean vote) around the body's thermal plume. The results showed that a ceiling height of 5 m, lateral and frontal distances of 1 m and 0.5 m between machines, and Type 2 (two inlets mounted on the ceiling) ventilation strategy were optimal for achieving better thermal comfort values in a thermal condition of 18 °C and 0.2 m·s−1. The study found that increasing the ceiling height and using cross-positioned vents that project air vertically from the ceiling improved the comfort conditions significantly. It is expected that these criteria, which were determined, compared with the standards and detailed, will contribute to the production processes of comfortable exercise spaces. © 2023 Elsevier B.V.Article Citation - WoS: 1On-Site Measurements of Temperature and Humidity Conditions for the Comparison of Urban and Rural Sub-Spaces of Traditional Settlements: Historical City of Mugla, Turkey(Taylor & Francis, 2023) Timur, Barış Ali; Başaran, Tahsin; İpekoğlu, BaşakOne of the significant processes that ensures realistic determination of the energy needs of historical buildings is case-specific definition of their local microclimatic conditions. Accordingly, the aim of this study is to determine differences for the parameters of temperature and humidity in urban and rural sub-settlements of the historical city, Mugla/Turkey. Study method consists of on-site measurements of these variables in sub-settlements for comparisons. As a result, it was identified urban zone shows heat island characteristics with warmer, drier, and more stable conditions; while rural sub-settlement remains cooler, more humid, and more erratic. In parallel, calculated extents of these differences demonstrate the significance and necessity of on-site measurements and consequential microclimatic zoning of historical cities as conservation/planning tools for responding to the thermal needs of architectural heritage. A key application of these processes would be the establishment of local databases of case-specific weather data to be used in thermal simulation assessments.Article Citation - WoS: 30Citation - Scopus: 32Experimental and Numerical Investigation of Natural Convection in a Double Skin Facade(Elsevier Ltd., 2016) İnan, Tuğba; Başaran, Tahsin; Ezan, Mehmet AkifIn this study, airflow and heat transfer in a rectangular cavity that simulates a double skin facade and includes natural convection were examined numerically and experimentally. This cavity separates the exterior space and the thermally controlled interior space. The temperatures of the surfaces that interact with these spaces were determined experimentally, while the other surfaces were regarded as adiabatic. With these temperature values, the parameters of the numerical study were defined. After the validation of the numerical model was completed based on experimental studies in the literature, the results related to flow and heat transfer in the cavity were analyzed. The numerical model provided results that agree with the air temperature values found experimentally in the cavity. Accordingly, in natural convection, with Rayleigh numbers ranging from 8.59 ∗ 109 to 1.41 ∗ 1010 and the effect of buoyancy on the regions close to the surface, the increasing tendency of the average Nusselt number from 142.6 to 168.8 was shown. In addition, a correlation between the Rayleigh and Nusselt numbers for a cavity aspect ratio of 8.64 was constructed to evaluate the heat flux; this correlation was also shown graphically.Doctoral Thesis Investigations of Indoor Thermal and Air Flow Conditions in a Tobacco Warehouse(01. Izmir Institute of Technology, 2023) Gerçek, Mümine; Başaran, TahsinThis study investigates the thermal performance and indoor environment conditions of naturally and hybrid ventilated industrial buildings. Numerical analyses and experimental measurements were conducted in a tobacco warehouse in İzmir, Turkey. Parametric analyses were performed with three different approaches: i) 15 architectural design strategies are evaluated by using a sensitivity analysis. It is found that roof insulation thickness, shading projection factor, and shading angle have significant impact on heating and cooling requirements. In addition, the most influential factors on operational CO2 emissions are thickness of insulation material and conductivity of thermal insulation material. ii) Vertical and volumetric temperature gradients, crucial for stored product quality, are assessed through field measurements and CFD simulations. Ceiling-mounted radiant cooling systems reduced indoor temperatures by 3°C, while floor heating systems increased temperatures by 7°C, ensuring a consistent range of 21- 25°C by providing a range at defined indoor temperature values. Maximum loads are determined as 12.9W/m2 for cooling and 39.6W/m2 for heating. iii) The air change effectivenesses of different ventilation conditions are analysed. Four additional fans improved air exchange quality and decreased the volumetric mean age of air (AoA) from 1230 to 525 seconds. It is indicated that, while additional fans may decrease the mean AoA, maximizing the fan operation capacities is not obligatory to achieve increased air change effectiveness. Besides, the analysis of various fan operation scenarios significantly improves indoor environment conditions and energy efficiency. This thesis emphasizes the importance of design parameters in influencing indoor environmental conditions and energy consumption. The investigation of thermal air mixing and conditioning strategies underscores the need for a combined experimental and numerical approach. The findings contribute to effective solutions for warehouses storing temperature-sensitive products, ensuring optimal storage conditions and mitigating temperature variations during logistics operations.