INDCOR white paper on the Design of Complexity IDNs

This white paper was written by the members of the Work Group focusing on design practices of the COST Action 18230 - Interactive Narrative Design for Complexity Representation (INDCOR, WG1). It presents an overview of Interactive Digital Narratives (IDNs) design for complexity representations through IDN workflows and methodologies, IDN authoring tools and applications. It provides definitions of the central elements of the IDN alongside its best practices, designs and methods. Finally, it describes complexity as a feature of IDN, with related examples. In summary, this white paper serves as an orienting map for the field of IDN design, understanding where we are in the contemporary panorama while charting the grounds of their promising futures

Impacts of retrofitting analysis on first generation ethanol production: process design and techno-economics

More than half of the bioethanol plants in operation today use corn or grains as raw materials. The downstream processing of mash after fermn. to produce ethanol and distiller grains is an energy-demanding process, which needs retrofitting for optimization. In addn., the fluctuation in the ethanol and grain prices affects the overall profitability of the plant. For this purpose, a process simulation was performed in Aspen Plus based on an existing industrial plant located in Sweden. The simulations were compared using different scenarios including different concns. of ethanol, using the stillage for biogas prodn. to produce steam instead of distiller grains as a byproduct, and altering the purity of the ethanol produced. Using stillage for biogas prodn., as well as utilizing the steam, reduced the overall energy consumption by 40 % compared to the plant in operation. The fluctuations in grain prices had a high impact on the net present value (NPV), where grain prices greater than 349 USD/ton reached a zero NPV. After 20 years, the plant in operation producing 41,600 tons ethanol/yr can generate a profit of 78 million USD. Compared to the base case, the less purified ethanol resulted in a lower NPV of 30 million USD. [on SciFinder(R)]</p