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Design and Engineering of Microreactor and Smart-Scaled Flow Processes

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ISBN: 9783038420385 9783038420392 Year: Pages: 252 DOI: 10.3390/books978-3-03842-039-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Added to DOAB on : 2015-10-22 07:00:06
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Microreactors are small devices with sub-millimeter internals which have superb mass and heat transfer. Initially, they were used for reactions with very high demands on the latter, e.g. very exothermic reactions, gas-liquid reactions with interfacial transport issues, reactions with very fast kinetics which demands even faster mixing, and more. In this way, the processing window was opened widely and, also due to the minute volumes only present in the reaction zone, safe processing under otherwise hazardous conditions was enabled. This includes processing of reactions which are prone to thermal runaway and in the explosive regime. Scale-up of promising reactions and products which was hindered with conventional technology is now possible using the new equipment. This has widened the process development possibilities in chemical industry.In the last years, micro process technology was not only used for the very problematic synthetic issues which formerly had a dead-end position in industry’s process development. Rather, the scope of chemical reactions to be processed in microreactors was considerably widened by exploring new process conditions with regard to temperature, pressure, concentration, solvents, and more. This is commonly referred to as flow chemistry. This allowed to reduce the processing time-scale for many reactions to the minute range or even below which fits well to the residence times of microreactors. In addition, the process integration of several reactions in one flow to a multi-step synthesis has opened a new door in molecular diversity as well as system and process complexity. The same holds for the combination of reactions and separations in micro-flow. To achieve throughputs relevant for industrial production, smart scale-out to milli-flow units has established and supplemented the num­bering-up concept (parallelization of microchannels/-reactors operated under equal conditions).New innovations and enabling technologies need anyhow evaluation and benchmarking with conventional technology on the full-system level. Yet, microreactor technology has in the last years deepened so much into process intensification on a holistic scale that the focus increasingly is given towards the process dimension—to process design and automation, real-case applications, cost analysis, life-cycle assessment, and more. The impact on cost competitiveness and sustainability becomes well assessed.Facing this very recent scientific achievement, the special issue “Design and Engineering of Microreactor and Smart-Scaled Flow Processes” of the journal Processes aims to cover recent advances in the development of microreactor and smart-scaled flow processes towards the process level — in the sense as given above.

8th EASN-CEAS Workshop on Manufacturing for Growth and Innovation

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ISBN: 9783039214853 9783039214860 Year: Pages: 166 DOI: 10.3390/books978-3-03921-486-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Transportation --- General and Civil Engineering --- Technology (General)
Added to DOAB on : 2019-12-09 11:49:15
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This Special Issue contains selected papers from works presented at the 8th EASN–CEAS (European Aeronautics Science Network–Council of European Aerospace Societies) Workshop on Manufacturing for Growth and Innovation, which was held in Glasgow, UK, 4–7 September 2018. About 150 participants contributed to a high-level scientific gathering providing some of the latest research results on the topic, as well as some of the latest relevant technological advancements. ?ine interesting articles, which cover a wide range of topics including characterization, analysis and design, as well as numerical simulation, are contained in this Special Issue.

Modelling and Analysis of Sustainability Related Issues in New Era

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ISBN: 9783039210244 9783039210251 Year: Pages: 350 DOI: 10.3390/books978-3-03921-025-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Economics
Added to DOAB on : 2019-06-26 08:44:06
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The purpose of this Special Issue is to investigate topics related to sustainability issues in the new era, especially in Industry 4.0 or other new manufacturing environments. Under Industry 4.0, there have been great changes with respect to production processes, production planning and control, quality assurance, internal control, cost determination, and other management issues. Moreover, it is expected that Industry 4.0 can create positive sustainability impacts along the whole value chain. There are three pillars of sustainability, including environmental sustainability, economic sustainability, and social sustainability. This Special Issue collects 15 sustainability-related papers from various industries that use various methods or models, such as mathematical programming, activity-based costing (ABC), material flow cost accounting, fuel consumption model, artificial intelligence (AI)-based fusion model, multi-attribute decision model (MADM), and so on. These papers are related to carbon emissions, carbon tax, Industry 4.0, economic sustainability, corporate social responsibility (CSR), etc. The research objects come from China, Taiwan, Thailand, Oman, Cyprus, Germany, Austria, and Portugal. Although the research presented in this Special Issue is not exhaustive, this Special Issue provides abundant, significant research related to environmental, economic, and social sustainability. Nevertheless, there still are many research topics that require our attention to solve problems of sustainability.

Keywords

carbon tax policy --- return policy --- carbon reduction --- e-commerce platform --- carbon emissions --- cap & trade --- green production --- footwear industry --- activity-based costing (ABC) --- activity-based costing (ABC) --- industry 4.0 --- integrated mathematical programming --- product-mix decision --- theory of constraints (TOC) --- carbon tax --- small and medium enterprises --- OEE --- OECD --- manufacturing sustainability --- time study --- Industry 4.0 --- material handling systems --- agent-based control architecture --- Activity-Based Costing (ABC) --- Industry 4.0 --- tire industry --- carbon emission --- carbon tax --- mathematical programming --- sustainability --- sustainability performance --- corporate social responsibility (CSR) --- internal control --- multi-attribute decision model (MADM) --- decision making trial and evaluation laboratory (DEMATEL) --- DANP (DEMATEL based ANP) --- VIKOR --- fuel consumption --- sustainability --- active suspension --- PID controller --- white noise --- colored noise --- long- and short-term --- greenhouse gas --- LS-ARIMAXi-ECM model --- sustainability --- economic growth --- exogenous variables --- CO2 emissions --- family business --- succession plan --- corporate characteristics --- family capital --- niche inheritance --- multi-attribute decision model (MADM) --- social sustainability --- artificial intelligence --- corporate social responsibility --- decision making --- firm value --- Activity-Based Costing (ABC) --- Industry 4.0 --- aluminum-alloy wheel industry --- mathematical programming --- Activity-Based Standard Costing (ABSC) --- Manufacturing Execution System (MES) --- Activity-Based Costing (ABC) --- Enterprise Resource Planning (ERP) --- Industry 4.0 --- industrial internet of things --- digital transformation --- digital platforms --- qualitative-empirical study --- small and medium-sized enterprises --- sustainable development --- energy efficiency --- electrical appliances --- life cycle cost analysis (LCCA) --- multi-attribute value theory (MAVT) --- multi-objective optimization --- NSGAII --- sustainability --- ISO14051 --- material flow cost accounting --- n/a

Energy Efficiency in Buildings: Both New and Rehabilitated

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ISBN: 9783039287024 / 9783039287031 Year: Pages: 412 DOI: 10.3390/books978-3-03928-703-1 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Arts in general --- Architecture
Added to DOAB on : 2020-06-09 16:38:57
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Buildings are one of the main causes of the emission of greenhouse gases in the world. Europe alone is responsible for more than 30% of emissions, or about 900 million tons of CO2 per year. Heating and air conditioning are the main cause of greenhouse gas emissions in buildings. Most buildings currently in use were built with poor energy efficiency criteria or, depending on the country and the date of construction, none at all. Therefore, regardless of whether construction regulations are becoming stricter, the real challenge nowadays is the energy rehabilitation of existing buildings. It is currently a priority to reduce (or, ideally, eliminate) the waste of energy in buildings and, at the same time, supply the necessary energy through renewable sources. The first can be achieved by improving the architectural design, construction methods, and materials used, as well as the efficiency of the facilities and systems; the second can be achieved through the integration of renewable energy (wind, solar, geothermal, etc.) in buildings. In any case, regardless of whether the energy used is renewable or not, the efficiency must always be taken into account. The most profitable and clean energy is that which is not consumed.

Keywords

greenhouse --- floor envelope design --- ground heat transfer --- thermal insulation --- energy modeling --- life cycle cost analysis --- nearly zero energy building --- artificial neural network --- performance parameter design --- energy saving ratio --- dynamic simulation --- urban modelling --- co-simulation --- simulation engines --- building stock energy demand --- building --- energy --- heat load --- sensitivity --- glazing --- surface cooling --- three-phase unbalance minimization --- model predictive control --- home energy management system --- perturbation and observation --- adjustable step size --- low power loss --- maximum power point tracking --- HVAC demand --- prediction --- energy efficiency --- residential buildings --- Ipomoea batatas --- lightweight expanded clay aggregate (LECA), thermal performance --- extensive green roof --- subtropical climate --- artificial neural network --- big data --- energy-performance gap --- building energy prediction --- building user activity --- single-person household --- Korean household energy consumption --- analytical hierarchy process --- energy efficiency promotion --- influencing factors --- residential buildings --- policy design --- building energy --- passive architecture --- test method --- energy performance standard --- zero energy building --- technology package --- renovation --- energy renovation --- demolition --- new construction --- energy use --- energy performance --- life cycle cost --- optimization --- OPERA-MILP --- multi-family buildings --- Arab region --- building sector --- energy efficiency --- energy productivity --- GCC --- Maghreb --- Mashreq --- space heating --- domestic hot water (DHW) --- air, ground and water source heat pump (ASHP, GSHP and WSHP) --- coefficient of performance (COP) --- seasonal performance factor (SPF) --- energy pile --- energy tunnel --- Level(s) --- green building rating systems --- Building Research Establishment Assessment Method (BREEAM) --- Deutsche Gesellschaft für Nachhaltiges Bauen (DGNB) --- Haute Qualité Environnementale (HQE) --- Leadership in Energy &amp --- Environmental Design (LEED) --- energy efficiency --- subtropical climate building --- Minimum-Energy Building (MEB) --- building refurbishment --- building rehabilitation --- building renovation --- envelope airtightness --- envelope thermography --- envelope transmittance

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