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1مؤتمر
المؤلفون: Sultanova, Shakhnoza, Safarov, Jasur, Tarawade, Abhijit, Samandarov, Doston, Azimov, Alisher
المصدر: 2023 3rd International Conference on Technological Advancements in Computational Sciences (ICTACS) Technological Advancements in Computational Sciences (ICTACS), 2023 3rd International Conference on. :502-506 Nov, 2023
Relation: 2023 3rd International Conference on Technological Advancements in Computational Sciences (ICTACS)
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2مؤتمر
المؤلفون: Muchsin, Denny Murdany, Setiawan, Agus
المصدر: 2021 International Conference on Technology and Policy in Energy and Electric Power (ICT-PEP) Technology and Policy in Energy and Electric Power (ICT-PEP), 2021 International Conference on. :147-151 Sep, 2021
Relation: 2021 International Conference on Technology and Policy in Energy and Electric Power (ICT-PEP)
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3دورية أكاديمية
المؤلفون: Monisha Miriam, L. R., Kings, Ajith J.Aff2, IDs12155022104648_cor2, Raj, R. Edwin, Shyam, K. Prakash, Adhi Viswanathan, M.
المصدر: BioEnergy Research. 16(2):1051-1064
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4مؤتمر
المؤلفون: Koedudom, T., Yoiyod, P.
المصدر: 2017 International Symposium on Antennas and Propagation (ISAP) Antennas and Propagation (ISAP), 2017 International Symposium on. :1-2 Oct, 2017
Relation: 2017 International Symposium on Antennas and Propagation (ISAP)
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5دورية أكاديمية
المؤلفون: Haibo Zhao, Jiaao Dai, Kun Wu
المصدر: Applied Sciences, Vol 12, Iss 11, p 5508 (2022)
مصطلحات موضوعية: heat pump drying, heat transfer, mass transfer, dry basis moisture content, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
الوصف: To study the heat and moisture transfer behavior in sea cucumbers with heat pump convective drying, a multi-physical field coupled model including the velocity field, temperature field, and dilute matter transfer in the porous media of sea cucumbers is built. The heat pump drying experiments verified the results of numerical simulation. The results show that the moisture content on the dry basis of a sea cucumber decreases from the surface to the inside. The sea cucumber’s surface temperature increases gradually with drying until it reaches an equilibrium temperature, while the time required decreases with the increase in wind speed. The dry basis moisture content at the center of three different samples decreases from the initial values of 17.29, 13.48, and 7.73 to 3.25, 1.80, and 0.66, respectively. Further, the surface temperatures reached 40 °C, 33 °C, and 30 °C, which are the same as the inlet temperature. The simulated results were within 11% of the experimental ones, showing good consistency for both the dry basis moisture contents and temperatures. This research proves that a coupled heat and mass transfer model based on the porous medium theory can well describe the heat and mass transfer characteristics of sea cucumber with heat pump drying. It is also useful for studies on drying process optimization and quality improvement of aquatic products with heat pump drying.
وصف الملف: electronic resource
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المؤلفون: Flavio Raponi, Riccardo Massantini, Swathi Sirisha Nallan Chakravartula, Roberto Moscetti, Marcello Fidaleo
المصدر: Biosystems Engineering. 223:1-13
مصطلحات موضوعية: Materials science, Control and Systems Engineering, Scientific method, Process analytical technology, Dry basis, Soil Science, Soil science, Air drying, Agronomy and Crop Science, Water content, Food Science, Shrinkage
الوصف: The feasibility of using a computer-vision (CV) system embedded in a hot-air dryer for non-destructive and real-time monitoring of the drying behaviour of organic apples was investigated in the present study. Apple cylinders were subjected to anti-browning treatments with different dipping solutions (water as control, trehalose (4% w/v) or trehalose + ascorbic acid (4% w/v and 1% w/v)) and dipping pressures (atmospheric, 101.3 kPa and sub-atmospheric pressure, 50 kPa) followed by drying at 60 °C to a final dry basis moisture content of 0.18 g g−1. The CV system was used as an in-line process analytical technology (PAT) tool to capture images reflecting the physico-chemical changes during product drying coupled with in-line mass changes and off-line reference analyses. The spatial and colour changes from the image analysis described well the complex and non-homogenous nature of apple drying. The results of spatial changes allowed successful development of accurate linear prediction models for moisture content as a function of area shrinkage (on scaled variables) with excellent prediction capability (|BIAS
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المصدر: Food Science and Technology, Issue: ahead, Published: 29 JAN 2021
Food Science and Technology, Volume: 41, Issue: 4, Pages: 928-937, Published: 29 JAN 2021
Food Science and Technology v.41 n.4 2021
Food Science and Technology (Campinas)
Sociedade Brasileira de Ciência e Tecnologia de Alimentos (SBCTA)
instacron:SBCTA
Food Science and Technologyمصطلحات موضوعية: carrageenan extraction, Eucheuma, Materials science, Chromatography, Central composite design, biology, Nutrition. Foods and food supply, Extraction (chemistry), Dry basis, biology.organism_classification, Carrageenan, Viscosity, chemistry.chemical_compound, ohmic technology, chemistry, Yield (chemistry), Eucheuma spinosum, T1-995, TX341-641, Response surface methodology, optimization, Technology (General), Food Science, Biotechnology
الوصف: Seaweed is an important global commodity since it is the source of many important products such as carrageenans, agar, alginates, and bioactive compounds. Seaweed processing is an energy intensive process since it involves heating large volumes of seaweeds in alkali solutions at high temperatures for up to six hours. To increase energy efficiency, an ohmic based processing system has been developed but has not been tested thoroughly. Therefore, the objective of this study was to identify optimum processing conditions for extraction of carrageenan from Eucheuma spinosum using ohmic heating technology. The experiment was conducted using Central Composite Design with four variables, i.e. extraction temperature, extraction duration, KOH concentration, and solution to seaweed ratio. Following the extraction process, carrageenan was recovered through precipitation using 90% isoprophyl alcohol solution. Results of experiments indicate that extraction yields varied from 29.6-62.4% dry basis with viscosity and gel strength varied from 259-290 mPa.s and 42.54-70.41 g/cm2 respectively. Statistical analysis indicated that extraction yield can be adequately modeled using the four variables and optimum extraction yield (61.59%), gel strength (53.48 g/cm2), and viscosity (284.51 mPa.s) were achieved at 95 °C extraction temperature, 240 minutes of extraction time, 0.4M KOH concentration, and 45:1 solution to seaweed ratio.
وصف الملف: text/html
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc9a4e6696bd5f3d2f64a9d7f7f6f4fb
https://doi.org/10.1590/fst.26220 -
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المؤلفون: Ming Li, Huang Mengxiao, Xianglong Liu, Decheng Kong, Li Xuejuan, Yunfeng Wang
المصدر: Solar Energy. 230:721-731
مصطلحات موضوعية: Solar dryer, Monocrystalline silicon, Materials science, Renewable Energy, Sustainability and the Environment, Scanning electron microscope, Thermal, Kinetics, Photovoltaic system, Dry basis, General Materials Science, Pulp and paper industry, Water content
الوصف: This study proposes an indirect solar drying system containing a solar photovoltaic/thermal air collector, a monocrystalline silicon photovoltaic system, a drying oven and two batteries. The drying kinetics and drying quality of turnip slices obtained using the proposed solar drying equipment and via natural drying were compared and analyzed along with the energy provided and required for turnip drying using a solar dryer. The results reveal that the turnip drying time is shorter when using the solar dryer than when using natural drying. The moisture content on dry basis of the turnips decreased to 0.197 from 20.370 using the solar dryer. However, when subjected to natural drying, the moisture content on dry basis took more time to dry from a moistire content of 21.320 to 0.250. The Midilli and Kucuk model was deemed appropriate for depicting the turnip slices’ drying using solar drying equipment and via natural sunlight. Furthermore, the dried turnips obtained via natural drying and using the solar drying system exhibited the highest and lowest values of total colour difference, respectively. Following open sun drying, scanning electron microscopy revealed some obvious molds on the surface of the turnip cells, and the turnip cells were subsequently destroyed. The drying quality of turnips attained via open sun drying was severely reduced. The drying method using the solar drying equipment was thus better than natural drying, particularly in cloudy weather.
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المؤلفون: P. Muthukumar, Jasinta Poonam Ekka, Kannan Pakshirajan, Krishnendu Bala, Dipak Kumar Kanaujiya
المصدر: Solar Energy. 229:39-51
مصطلحات موضوعية: Materials science, Moisture, Renewable Energy, Sustainability and the Environment, Airflow, Dry basis, General Materials Science, Composite material, Air mass (solar energy), Water content, Cluster fig, Volumetric flow rate, Forced convection
الوصف: A Mixed-mode Forced Convection Solar Cabinet Dryer (MFCSCD) is designed for the maximum harnessing of solar radiation. It utilizes the direct heat from solar radiation through glass cover as well as preheated air from two solar air heaters (SAHs) fixed in series having a double pass. The experimental research works were performed in the metrological conditions of Guwahati, India. The drying performance of MFCSCD was analyzed under different air mass flow rates in terms of specific moisture extraction rate (SMER), pickup efficiency, and dryer efficiency for the drying of cluster fig. Further, a thin layer drying kinetics analysis was carried out to find the best suited mathematical model for representing the drying behavior of cluster fig in MFCSCD and open sun drying. Cluster fig dried from moisture content (MC) of 5.67 to 0.08 kg/kg on a dry basis in 7.0, 8.0, 8.5, and 9.5 h at airflow rates of 3.72, 2.76, 1.8, and 1.08 kg/min, respectively, whereas it took 14 h to attain the same moisture level under open sun drying. The experimental results showed higher dryer and pickup efficiencies and SMER at 3.72 kg/min air flow rate. The quality analyses of solar and sun-dried were carried out to estimate the total phenolic content, antioxidant activity, and rehydration ratio.
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المؤلفون: Sonia Castellucci, Maurizio Carlini, Danilo Monarca, Andrea Mennuni, Sara Selli, Luca Casini
المصدر: Energy Reports, Vol 7, Iss, Pp 921-929 (2021)
مصطلحات موضوعية: Pre treatment, Circular economy, Revaluation of wastes, Moisture, Chemistry, Dry basis, Biomass, Pulp and paper industry, Biomass characterization, TK1-9971, Anaerobic digestion, General Energy, Biogas, Electrical engineering. Electronics. Nuclear engineering, Brewery spent grains, Anaerobic exercise, Biogas production
الوصف: The aim of this study focuses on the possibility of producing biogas from brewery spent grains through an anaerobic digestion (AD) process. Beer, in fact, is one of the most consumed drinks all over the world and its highly impactful production process releases a large quantity of wastes, such as spent grains (BSG). In the first part of this work, an energetic characterization of raw BSG has been carried out to define moisture, ashes and volatile solids contents. Then, two pre-treatments of BSG have been analysed, in order to establish how to improve the energetic characteristics of this biomass for an anaerobic conversion process. The first pre-treatment has consisted in a low temperature process, while the second one is an alkali pre-treatment. After the raw biomass has been subjected to each pre-treatment, the energetic characterization has been repeated to evaluate the change of the BSG’s properties. The obtained results show that the raw BSG is a suitable biomass for AD application, because of the high content of volatile solids (around 90.9%) and the low percentage of ash on dry basis (about 3.53%). These characteristics has been bettered through the low temperature pre-treatment (volatile solids percentage near 92.7% and ash content approximately equal to 3.59 %) in terms of digestibility by anaerobic digestion reaction, while the alkali one has worsened the volatile solids content (around 73.8%) and increased the ash percentage (near 38.61%).
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