175 research outputs found

    An analytical perspective on primary school design as architectural synthesis towards the development of needs-centred guidelines

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    Primary school design is balancing between end-user needs and societal interests, and between traditional and innovative approaches. In current approaches, an unbalance affects end-users’ performances and obstructs innovative school-building design. The institutional system of design should not only be more aware of adjusting the quality design indicators to end-users, but they should actually do it in combination with the increasing need for more innovation in school-building designs. Present guidelines emphasize objective rational societal and traditional interests but underestimate the subjective essences of individual end-user needs and the abilities of intelligent school buildings to meet important requirements for present and future learning environments. Based on universal human needs and dynamic mechanisms relationships, this article addresses a number of reasons that cause these mismatches. We present a theoretical analysis to establish Needs Centred Guidelines for primary school design as a methodological tool to improve the balance between the societal and end-users’ needs, and to give more insight into underlying patterns in design processes. The guidelines are based on a variety of end-user psychological, physiological and bio-physical needs. This article explains how this analytic approach contributes to the attention for end-user physical learning environment needs and to innovate school design

    Pathways towards Sustainable Food Consumption Patterns

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    A review of the bandwidth and environmental discourses of future energy scenarios:Shades of green and gray

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    Energy scenarios are often used to investigate various possible energy futures and reduce the uncertainty that surrounds energy transition. However, scenario construction lacks consistent and adequate methodological standards, resulting in limited insight into the actual bandwidth covered by current energy scenarios and whether various perspectives on future energy development pathways are all adequately represented. Our research deployed a non-mathematical clustering approach to identify general trends in future energy scenarios and assess the role of Cornucopian and Malthusian oriented world views therein. We found that the futures communicated in quantified future energy scenarios overlap to a large extent and represent only a narrow bandwidth of moderate world views. We argue that the underrepresentation of extreme representations of world views and environmental discourses in energy scenarios skews the overall outlook on possible energy futures. This implies that scenario-informed policy design and decision-making risks bias towards the status-quo. (C) 2016 Elsevier Ltd. All rights reserved

    Can Multiple Uses of Biomass Limit the Feedstock Availability for Future Biogas Production? An Overview of Biogas Feedstocks and Their Alternative Uses

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    Biogas is expected to contribute 10% of the total renewable energy use in Europe in 2030. This expectation largely depends on the use of several biomass byproducts and wastes as feedstocks. However, the current development of a biobased economy requires biomass sources for multiple purposes. If alternative applications also use biogas feedstocks, it becomes doubtful whether they will be available for biogas production. To explore this issue, this paper aims to provide an overview of potential alternative uses of different biogas feedstocks being researched in literature. We conducted a literature review using the machine learning technique "co-occurrence analysis of terms". This technique reads thousands of abstracts from literature and records when pairs of biogas feedstock-application are co-mentioned. These pairs are assumed to represent the use of a feedstock for an application. We reviewed 109 biogas feedstocks and 217 biomass applications, revealing 1053 connections between them in nearly 55,000 scientific articles. Our results provide two insights. First, a large share of the biomass streams presently considered in the biogas estimates have many alternative uses, which likely limit their contribution to future biogas production. Second, there are streams not being considered in present estimates for biogas production although they have the proper characteristics

    Environmental and Energy Performance of the Biomass to Synthetic Natural Gas Supply Chain

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    A quarter of the total primary energy demand in the European Union is met by natural gas. Synthetic natural gas produced through biomass gasification can contribute to a more sustainable energy supply system. A chain analysis of the energetic performance of synthetic natural gas where the upstream, midstream and downstream part are included has not been found in literature. The energy performance of the possible large-scale application of synthetic natural gas is therefore unsure. A model was designed to analyse the performance of the biomass to synthetic natural gas chain and to estimate the effect of 1% synthetic natural gas in the energy system. A break-even distance is introduced to determine whether it is energetically feasible to apply pretreatment. Results show that torrefaction and pelleting are energetically unfeasible within the European Union. Emissions can be reduced with almost 70% compared to a fossil reference scenario. Over 1.2 Mha is required to fulfil 0.25% of the total primary energy demand in the European Union
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