bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Optimization and Parameters Effect on Distilled Product from Pyrolysis of LDPE based on RSM for Liquid Fuel Production
Authors: Mueanmas Chokchai 
Published: December 2022

Abstract
Pyrolysis of low-density polyethylene (LDPE) was performed based on response surface methodology (RSM) with central composite design (CCD) to investigate the effect of process parameters such as temperature (385 – 425°C), residence time (30 – 180 min) and heating rate (5 - 20°C/min) on the % distilled product. The analysis of variance (ANOVA) was performed to determine the optimal and effect process parameters and the adequacy of the model. The ANOVA results showed that the temperature, time and heating rate had a significant effect on the % distilled product, which the temperature was found to have a greater effect on response than residence time and heating rate. The correlation coefficients of developed second order quadratic models found close to 1.0, which was best fitted to develop the relation between independent and dependent variables. The optimal process parameters obtained were temperature of 413°C, time 131 min and heating rate 12°C/min and the corresponding prediction result was % distilled product of 85.1497. The deviation value of the predicted model with experimental data was checked by confirmation test. Its results showed that the error was within 5%. Therefore, the optimization results can use to be guidance for application in the large-scale industrial.
Determine effective moisture diffusivity of non-isothermal drying process of shrinkage material
Authors: Le Kieu Hiep 
Published: December 2022

Abstract
Drying is a dehydration process that can help to prolongate storage time, improve product quality, and reduce transportation cost. Although being applied for food processing for a long time, the drying process still needs to be further investigated for optimizing the dryer design and operations. Among the thermal physical properties of food material, the effective diffusivity of moisture is an essential input parameter for drying process calculation. This parameter is traditionally estimated by fitting the drying curve with the mathematical solution obtained from the isothermal drying process for a non-shrinkage material. Hence, the predicted moisture content and temperature evolutions over time deviate significantly compared to the experimental observation. In this paper, the moisture diffusivity is computed using the inverse method. Firstly, a diffusion drying model, in which the material shrinkage is accounted for, was developed. The effective moisture diffusivity was obtained via an optimization routine where the deviation between the numerical and experimental moisture content profiles is minimized. This methodology has been applied to estimate the diffusivity of carrots during classical and ultrasonic-assisted convective drying. The results indicated that the experimental observation can be accurately predicted by the numerical result.
Valorization of greek – Naxos emery in environmental friendly applications
Authors: Kakavas K V , Binas V D , Kasiteropoulou D , Christodoulou D N 
Published: December 2022

Abstract
The purpose of this study is to investigate the chemical composition of Greek Naxos emery, and reuse of Naxos emery in the light of new environmental applications discovered. Its chemical composition will help us to propose alternative ways of exploiting and using it. Emery was characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray spectroscopy (EDS) and X-Ray diffraction (XRD) and it was revealed that Greek emery elemental analysis showed that it consists of Oxygen, Aluminum, Silica, Carbon, Calcium and less Antimonium and Iron. Antimonium is the key element for Greek – Naxos emery. The three main components are Quartz, Diasporite and Hematite. By reusing emery through new innovative environmental applications, we can achieve sustainable management and environmental integration.
Cross-linking the peroxidase: from potato peel valorization to colored effluents treatment
Authors: Svetozarević M , Šekuljica N , Dajić A , Mihajlović M , Popovski Z , Mijin D 
Published: December 2022

Abstract
Despite the obvious benefits from mass production such as an increased productivity, lower product cost and rapid evolution, nowadays we are dealing with energy consumption issues and pollution. The generated waste poses a threat to the environment, so new green techniques are developed constantly. Waste valorization is one of the trending concepts that is a part of sustainability strategies. Potato exploitation due to mass production of chips, hash browns, frozen food and starch leads to a formation of high waste load. There are several available ways for potato peel valorization: as a biofertilizer, as a substrate for microbial growth, as an adsorbent, for extraction of antioxidants and for extraction of enzymes. The enzyme peroxidase is abundant in potato peel. This enzyme uses hydrogen peroxide as an activator and can be readily used for oxidation of different compounds - pollutants. In this study, peroxidase was isolated from potato peel and immobilized as cross-linked enzyme aggregates. Pectin was used as a green cross-linker. The immobilized potato peel peroxidase was used for degradation of a textile anthraquinone dye Lanaset Violet B. Under the optimal process parameters: pH 3, 0.4 mM hydrogen peroxide, 0.8 μmol/min CLEA peroxidase, 10 mg/L dye and 70 min, 85.71±1.45 % dye degradation was achieved. The operational stability, as a key parameter for immobilized enzyme systems, was also examined. After 4 cycles CLEA peroxidase kept 31.57±1.79 % of its biodegradation efficiency.
Critical success factors towards resilient agri-food supply chains
Authors: Kontopanou M , Tsoulfas G T 
Published: December 2022

Abstract
Resilience is proposed as one of the main characteristics a contemporary supply chain system should possess in order to deal with the uncertainties created by the latest environmental, economic, and social crises. Especially in the case of the agri-food supply chains, the need to ensure that they are capable of responding to such disruptions has started to lead to the implementation of new practices considering the creation of more resilient and adaptable agri-food supply chain systems. This transitioning can be complicated as the integration of new practices involves the overcoming of certain barriers that occur. The aim of this research is to identify and discuss the critical success factors for the creation of resilient agri-food supply chains.
New temperature indices for the estimation of temperature variability. Application in Athens’s greater area.
Authors: Zacharaki K , Tseliou A , Rapsomanikis N , Zervas E 
Published: December 2022

AbstractThis current work attempts to explore the temperature’s variability through the selection of indicators that refer to the increases and decreases of three typical values of daily temperature (mean, maximum, minimum). The primary meteorological data that has been used come from the station of the Hellenic National Meteorological Service in Tatoi, the period 1955 to 2001. In total, nine indicators were developed; the time series of the number of days recorded with decrease, increase or stability of the day-by-day temperature’s characteristic value were examined annually and seasonally. The results of time series analysis led to the conclusion that, as time passes, there are changes in the decrease, increase and stability of the mean, minimum and maximum day-by-day temperature variability.
The effect of local climatic conditions on the building integration of photovoltaics
Authors: Skandalos Nikolaos , Kapsalis Vasileios , Karamanis Dimitris 
Published: December 2022

Abstract
The current work reports on the effect of local climatic conditions on electricity generation of typical building integrated photovoltaic systems (BIPVs). Three different climates of a) semi-continental with increased heating needs, b) Mediterranean with moderate heating and cooling needs and c) hot desert with high cooling needs are considered for BIPV systems. The evaluation of the BIPV electricity generation was done through validated TRNSYS simulations. The findings show that local climatic conditions influence the BIPV electricity generation due mainly to the temperature effect and the different interaction of the solar radiation components with the PV building integration.
Passive house design in temperate continental climate for increasing indoor comfort conditions
Authors: Dumitrașcu A I , Corduban C G , Hapurne T M , Bliuc I 
Published: December 2022

Abstract
In the last couple of years, we have witnessed dramatic changes in the fabric of our society, with great impact on cities, neighborhoods and living conditions. Therefore, the contemporary architectural discourse tries to shift its attention towards these social, cultural and climatic changes, while trying to better respond to the challenges that occur in our society at different levels. The present paper analyzes a project for an energy efficient single-family house that integrates into a heterogeneous urban context, with specific constraints pertaining to local regulations and climatic regional conditions. The chosen site is situated in a historical area of Iasi, Romania, aspect that must be taken into account when proposing the overall volumetric concept. The passive design strategies have also been implemented in order to achieve the nZEB status. Among other energy and cost efficient solutions we mention: use of renewable energies along with a very efficient constructive system for an airtight house configuration; natural cross ventilation strategies and maximizing the daylight factor for all indoor spaces. Simulations in DIALux provided very good values for daylight factor, an important aspect for minimizing the energy consumption for electricity, especially during winter. For increasing the overall indoor comfort hours during summer and winter, additional systems/features were proposed for direct solar intake, shading and increase of thermal mass.
BIM methods and CDE in professional education for sustainable Design and Production
Authors: Gonzalez Alfaro P H , Dimovski N , Lamartina L , de Sá P J 
Published: December 2022

Abstract
Implementing Building Information Modelling (BIM) methods in education to support lecturing, consulting, and decision-making cooperates in shaping an environmentally conscious student’s design approach. Within KEA’s bachelor in Architectural Technology and Construction Management (ATCO), the didactic supports digitalisation for building design and production. About the design aspects, for instance, in the 4th semester, 3D virtual digital building models are developed via BIM software with engineered timber load-bearing structural system, parametric formulas for embodied CO2 volumes calculation, thermal requirements, envelope design, light transmittance, low energy consumption, adequate acoustic conditions, and good indoor climate conditions. These factors can play an essential role in actual and future carbon-neutral buildings. Regarding production, environmentally friendly buildings use sustainable materials and efficient operational solutions and handle the BIM data and metadata in the corresponding Common Data Environment (CDE). In this fashion, production, operation and maintenance phases can be run appropriately. As a study case, we bring the KEA ATCO’s 4th semester mandatory joint assignment based on a combination of students’ group and individual work. The assignment requires BIM methods and CDE to control sustainability parameters related to the manufacturing and the site operation.
Sustainability through passive energy biomimetics systems in Architecture. Comparative analysis of case studies.
Authors: Dikou C , Kourniatis N 
Published: December 2022

Abstract
Nowadays, people face two serious problems: the energy problem and the depletion of natural resources. Current solutions for managing environmental change have caused a great deal of waste of energy on heating, cooling, ventilation, and lighting of our buildings. In the current paper, we propose an innovative multidisciplinary design system to combine biology, engineering, and basic principles of architecture for the construction of the building envelope that regulates environmental aspects. The study is based on adaptation strategies from biological systems and the contribution of “smart” materials and technologies toward the energy optimization of modern and future constructions, through the imitation of biological functions. Four bio-inspiration case studies are presented along with their architectural application, finishing with a comparative analysis to assess how well this methodology can be used in both present and future architecture and design. This research’s objective is to show how we can create a systematic transfer of knowledge between biology and technology. It aims to learn from biological principles and to apply this understanding to the development of bio-inspired structures, to understand the importance and impact that the use of bio-inspiration in architecture can have on the energy discussion.
Circadian stimulus calculators as environmental building design tools: Early results of a critical review
Authors: Kotsenos A , Madias E N , Topalis F , Doulos L 
Published: December 2022

Abstract
Lighting is a hugely important aspect of the environmental building design. During the past decades the building industry has been primarily concerned with the illuminance and the energy efficiency part of the artificial lighting rather than the human health. Latest studies emphatically state that a proper lighting design and luminaire types should promote the circadian rhythm. In the present study the differences between two available Circadian Stimulus CS calculator algorithms are identified. More analytically the CS calculators are applied to a number of measured spectral power distributions (SPD) of a commercial tunable white LED luminaire (2000K-6500K). The different impact between the CS calculators for the same measured spectral power distributions is concluded through the evaluation and comparisons of the results. The different results of the CS estimations for the same SPD could affect significantly the circadian lighting design and the proper selection of a luminaire.
The sustainable design of atrium at the times of adaptation to the impacts of climate change; the case of Mediterranean cities
Authors: Nastou Marina Panagiota P , Zerefos Stelios C 
Published: December 2022

Abstract
This research aims to accentuate the sustainability of the atrium, as an architectural suggestion and a tool with environmental value. As it has a recognizable structure with form and well-known function applied in the history of architecture, it is also related to beneficial results in the heating and cooling of the building of which it is part. It should be accentuated that, especially in Mediterranean climates, the atrium is encountered with particular types and connections to the wholeness of the structure. In the urban web there are buildings with courtyard, backyard, interior atrium, garden, or semi-outdoor spaces. The pre-mentioned instances contribute with vital importance to the heating and cooling of the building, as well as to the ventilation and the reception of natural light. Thus, the atrium presents a substantial solution to the amelioration of the microclimate of a building and even of a neighbourhood, via the exploitation of the characteristics of the construction (materials, openings, height, function) in combination with the exterior conditions. The traditional form of courtyards could lead to adaptation and mitigation measures, regarding the impacts of climate change. Moreover, the case of Athens, as an instance of a Mediterranean city, presents an interesting result of rules and regulations for the organization of the population’s growth, which created blocks with courts in their centre, structuring the analysis of built-and-empty spaces. The microclimate and the conditions of improving the land uses of the buildings with such courtyards is of great importance, especially in city-centres with the phenomenon of urban-heat-island, like Athens. Therefore, the atrium and its tradition seem to be a vital solution of sustainability for the adaptation to the climate change and the maintenance of life quality.
Design and Sustainable Construction in the Contemporary Work of Norman Foster
Authors: Pantoja M F F , Póvoas R H F , Pantoja J C , Sales A C M N 
Published: December 2022

Abstract
In the words of English architect Norman Foster, delivered at the Green Agenda Forum in 2015: “As an architect, you design for the present, with an awareness of the past, for a future that is essentially unknown”. Such words still reverberate in the contemporaneity of the new century, bringing to light the necessary and urgent sustainable approach in a multi and interdisciplinary field. To bring up studies and discussions about new possibilities, new paths for buildings and cities. The methodology of the article will be to elucidate, through the selection of examples by the architect Norman Foster, buildings in the urban context that combine sustainable integrated thinking and that, in some way, contribute to the improvement of our cities. Through these examples, we seek to disseminate sustainable design methodologies that support sustainable design and construction in accordance with the objectives of the Global Agenda for Sustainable Development to promote more resilient and sustainable cities due to the delicate moment the planet faces in terms of scarcity of resources. The article brings an in-depth study of contemporary cases, within the scope of the building inserted in the urban fabric and all its infrastructure, to elucidate the intersection between design and sustainable construction. Through investigation of the design and construction mechanisms, to bring to light eco-efficient strategies or technologies employed, the main result is to establish parallels and disseminate actions in the field of architecture towards sustainability, to praise the urgent path that humanity is going through in order to guarantee the perpetuation of species and conditions of survival not only for current generations, but also for future generations.
Façade lighting of hotel buildings: Integration in the city and their impact on light pollution
Authors: Skiadopoulos G. , Sigala C. , Papalambrou A. , Balafoutis Th. , Kakogiannis N. , Doulos L. T. 
Published: December 2022

Abstract
The exterior lighting in hotel buildings has a significant impact on humans and the ambient environment of city centres. The case study is a small-sized Boutique hotel, located at the historic centre of Athens, as far as its façade lighting is concerned, in relation to the ambient environment and the lighting standards that the general area architecture has set. A special methodology is followed in order to estimate the consequences of the exterior lighting taking into account the relevant norms. The international databases and bibliography were studied also in order to identify best practices, regulations of similar cases and lighting systems that are used. Using existing regulations, lighting recommendations were identified and, in order to minimize light pollution, stricter restrictions were adopted. Finally, lighting calculations and visualizations were performed, using Relux software, in order to verify that the lighting methods and proposed equipment do not have an adverse impact in terms of light pollution.
Ventilation requirements and energy aspects: the case of hospitals
Authors: Panaras Giorgos , Gropca Risofile , Papadopoulos Giannis 
Published: December 2022

Abstract
Energy building design today aims to ensure thermal comfort and indoor air quality; this concern has been increased, given the recent SARS-CoV-2 pandemic. The proposed work investigates the effect of increased natural ventilation on energy requirements, ensuring low CO2 levels and acceptable Indoor Air Quality (IAQ) in general. The case of hospitals was chosen because of the stringent IAQ requirements they raise as a result of the burdened (physical, chemical, biological) indoor environment, as well as the vulnerable health of the patients. The current energy analysis was carried out in patient wards, waiting rooms, and operating rooms. The proposed correlation between IAQ and energy is infrequent in the relevant literature, especially for the case of hospitals. Different scenarios regarding the ventilation mode are examined, including pure natural ventilation, natural ventilation combined with air cleaners, as well as mechanical ventilation. According to the results, improvement of the air quality leads to higher energy demand; this is the case of mechanical ventilation, noting that not properly designed natural ventilation techniques may lead to high energy consumption, without ensuring acceptable IAQ. Air cleaners can contribute towards better environment, potentially decreasing ventilation requirements; the issue of fresh air adequacy has to be examined though. The demonstrated methodological analysis and results can help the designer to investigate the efficiency of different ventilation modes, involving the effect of thermal envelope, geometrical and operation parameters, towards the energy requirements minimization and IAQ quality maximization.
Housing and energy consumption in Greece. Households’ experiences and practices in the context of the energy crisis
Authors: Chatzikonstantinou E. , Katsoulakos N. , Vatavali F. 
Published: December 2022

Abstract
This paper investigates the challenges households face in Greece in the context of the current energy crisis. “Energy transition” policies, climate adaptation and mitigation goals, geopolitical tensions and COVID-19 pandemic have raised new stakes for the energy sector. Although the ‘big picture’ of the energy crisis is of high importance, it is significant to reflect on the consequences of the rise of energy prices on households. The aim of this paper is to address the impacts of the energy crisis and the crisis management policies on households in Greece. Our intention is to analyze the problems households face with regards to coping with their energy needs at home, investigate how the rise of energy prices has affected living standards and evaluate existing policies. We claim that focusing on households’ experiences and practices could contribute to a deeper understanding of energy poverty; a social problem which is expected to expand in the context of “energy transition.” Understanding energy poverty is also important for developing efficient policies, as well as for supporting bottom-up initiatives. The adopted methodology is based on a survey at national level that was implemented through a structured questionnaire, conducted in May 2022.