The authors present the study design and main findings of a quasi-experimental evaluation of the learning efficacy of the Serious Game (SG) 'Hazard Recognition' (HR). The SG-HR is a playable, two-level demonstration version for training supervisors who work at oil and gas drilling sites. The game has been developed with a view to developing a full-blown, game-based training environment for operational safety in the oil and gas industry. One of the many barriers to upscaling and implementing a game for training is the questioned learning efficacy of the game. The authors therefore conducted a study into the game's learning efficacy and the factors that contribute to it. The authors used a Framework for Comparative Evaluation (FCE) of SG, and combined it with the Kowalski model for Hazard Detection and the Noel Burch competence model. Four experimental game sessions were held, two involving 60 professionals working in the oil and gas industry, and two with engineering students and consultants. Relevant constructs were operationalized and data were gathered using pre and post-game questionnaires. The authors conclude that the SG-HR improves players' skills and knowledge on hazard detection and assessment, and it facilitates significant learning efficacy in this topic. The FCE proved very helpful for setting up the evaluation and selecting the constructs.
In this article, we assess the potential of alternative land use systems using non-drainage peatland species which could eventually phase out or partly replace oil palm plantations on undrainable peatlands. We have used the ecosystem services approach to analyse what scenarios using drainage-free peatland species could be suitable alternatives for oil palm cultivation on peat and how these scenarios compare to oil palm plantations in terms of selected ecosystem services. Our results indicate that alternative paludiculture systems will provide more direct and indirect ecosystem services than oil palm plantations on peat. We also found that stakeholders were aware of issues with growing oil palm on peat, and that there was a general intention for sustainable use of peatlands amongst several groups of stakeholders. Replacing oil palm with alternative systems such as paludiculture in Malaysia is not yet realistic. The most important impediments are a lack of knowledge on potential of non-drainage peatland species and its associated value chains, as well as the technical difficulty for smallholders to implement such a system. We recommend starting experimental plantings with paludiculture systems to further test species performance, life cycle analysis, growth, intercropping limitations and possibilities, yields and improvements in the value chain.
The Cashing Cashew project focuses on isolation and purification of Cashew Nut Shell Liquid (CNSL) from Cashew Nut Shells (CNS) in order to fully utilize this valuable by-product of the cashew nut production. Global cashew nut production is about 4 million mt/ tons/yr. Of the cashew nut, about 70 % is shell that is removed in processing and currently typically burned as a dirty and inefficient fuel or discarded as waste. This is not only creating an environmental issue but also wasting valuable by-products. The shell contains circa 20-30 % brown viscous liquid, Cashew Nut Shell Liquid (CNSL). This natural resin contains valuable chemical components, for example, cardanol, cardol, and anacardic acid. CNSL and its derivatives have several industrial uses as for example biobased additives, polymeric building blocks, and biodiesel. Part of the CNSL can be extracted during the roasting process prior to separating the shell and nut kernel. The shell waste still has a high CNSL concentration that can be isolated by solvents or pressing (expeller). Expeller process is simple and not capital-intensive; therefore it is commonly used. The main disadvantages of the method are the high energy consumption and that 3-5 % oil remains in the press-cake producing harmful gases in burning. Also, the resulting cake is too dense to be further processed to charcoal or other useful application. The objective of this project is to study the purification of the CNSL obtained from pyrolytic isolation to find the most efficient way of making use of the CNSL oil and the total Cashew Nut Shell biomass. An initial evaluation of potential applications is also performed.
Paper sludge contains papermaking mineral additives and fibers, which could be reused or recycled, thus enhancing the circularity. One of the promising technologies is the fast pyrolysis of paper sludge, which is capable of recovering > 99 wt.% of the fine minerals in the paper sludge and also affording a bio-liquid. The fine minerals (e.g., ‘circular’ CaCO3) can be reused as filler in consumer products thereby reducing the required primary resources. However, the bio-liquid has a lower quality compared to fossil fuels, and only a limited application, e.g., for heat generation, has been applied. This could be significantly improved by catalytic upgrading of the fast pyrolysis vapor, known as an ex-situ catalytic pyrolysis approach. We have recently found that a high-quality bio-oil (mainly ‘bio-based’ paraffins and low-molecular-weight aromatics, carbon yield of 21%, and HHV of 41.1 MJ kg-1) was produced (Chem. Eng. J., 420 (2021), 129714). Nevertheless, catalyst deactivation occurred after a few hours’ of reaction. As such, catalyst stability and regenerability are of research interest and also of high relevance for industrial implementation. This project aims to study the potential of the add-on catalytic upgrading step to the industrial fast pyrolysis of paper sludge process. One important performance metric for sustainable catalysis in the industry is the level of catalyst consumption (kgcat tprod-1) for catalytic pyrolysis of paper sludge. Another important research topic is to establish the correlation between yield and selectivity of the bio-chemicals and the catalyst characteristics. For this, different types of catalysts (e.g., FCC-type E-Cat) will be tested and several reaction-regeneration cycles will be performed. These studies will determine under which conditions catalytic fast pyrolysis of paper sludge is technically and economically viable.
Aanleiding De nationale overheid wil voldoen aan de duurzaamheidsdoelstellingen van 2020. Dit streven botst echter regelmatig met de wensen van lokale overheden en burgers. Communicatieadviseurs van de overheid stuiten steeds vaker op lokale weerstanden tegen projecten als ondergrondse CO2-opslag, windmolenparken of de komst van biovergisters. Communicatieadviseurs vinden het lastig om zelfstandig wetenschappelijke inzichten uit de communicatiewetenschappen toepasbaar te maken voor deze weerbarstige praktijk. Zij hebben behoefte aan kennis en tools om goed communicatief te kunnen handelen. Doelstelling De vraag die in dit project centraal staat is: Hoe kan bij lokale energietransities effectief vorm worden gegeven aan communicatie? Het project Let's Talk Energy sluit aan bij een ontwikkeling om de alledaagse gesprekken tussen mensen te zien als bron van analyse en mogelijk ook als bron voor verandering. Nieuwe nieuwe wetenschappelijke inzichten over communiceren via sociale media combineren we met kennis die is opgedaan door onderzochte cases en best practices. De consortiumpartners van het project werken samen om een energiecommunicatie-instrument (InterAct) te ontwikkelen, dat aanzet tot doeltreffende communicatie over lokale energieprojecten. Met de nieuwe kennis kan de communicatieadviseur analyses maken en reageren op zorgen van burgers bij lokale energietransities. Beoogde resultaten De te verwachten resultaten van het project zijn: " een energiecommunicatie toolkit (InterAct) inclusief een praktische handleiding en eindrapport; " effectieve digitale producten en infographics; " masterclasses energiecommunicatie; " cahier met best practices. Ter afsluiting van het onderzoeksprogramma wordt een landelijke conferentie Let's Talk Energy georganiseerd waarbij de onderzoeksresultaten en opgeleverde producten worden gepresenteerd.
