title: Design of robust total site heat recovery loops via Monte Carlo simulation

authors: Schlosser, Florian

subjects: Science & Technology

abstract: For increased total site heat integration, the optimal sizing and robust operation of a heat recovery loop (HRL) are prerequisites for economic efficiency. However, sizing based on one representative time series, not considering the variability of process streams due to their discontinuous operation, often leads to oversizing. The sensitive evaluation of the performance of an HRL by Monte Carlo (MC) simulation requires sufficient historical data and performance models. Stochastic time series are generated by distribution functions of measured data. With these inputs, one can then model and reliably assess the benefits of installing a new HRL. A key element of the HRL is a stratified heat storage tank. Validation tests of a stratified tank (ST) showed sufficient accuracy with acceptable simulation time for the variable layer height (VLH) multi-node (MN) modelling approach. The results of the MC simulation of the HRL system show only minor yield losses in terms of heat recovery rate (HRR) for smaller tanks. In this way, costs due to oversizing equipment can be reduced by better understanding the energy-capital trade-off.

text: Design of robust total site heat recovery loops via Monte Carlo simulation For increased total site heat integration, the optimal sizing and robust operation of a heat recovery loop (HRL) are prerequisites for economic efficiency. However, sizing based on one representative time series, not considering the variability of process streams due to their discontinuous operation, often leads to oversizing. The sensitive evaluation of the performance of an HRL by Monte Carlo (MC) simulation requires sufficient historical data and performance models. Stochastic time series are generated by distribution functions of measured data. With these inputs, one can then model and reliably assess the benefits of installing a new HRL. A key element of the HRL is a stratified heat storage tank. Validation tests of a stratified tank (ST) showed sufficient accuracy with acceptable simulation time for the variable layer height (VLH) multi-node (MN) modelling approach. The results of the MC simulation of the HRL system show only minor yield losses in terms of heat recovery rate (HRR) for smaller tanks. In this way, costs due to oversizing equipment can be reduced by better understanding the energy-capital trade-off.

year: 2019

title: Trends on Engineering Interactive Systems: an overview of works presented in workshops at EICS 2019

authors: Distante, Damiano

subjects: Science & Technology

abstract: Workshops are a great opportunity for identifying innovative topics of research that might require discussion and maturation. This paper summarizes the outcomes of the workshops track of the 11th Engineering Interactive Computing Systems conference (EICS 2019), held in Valencia (Spain) on 18-21 June 2019. The track featured three workshops, one half-day, one full-day and one two-days workshop, each focused on specific topics of the ongoing research in engineering usable and effective interactive computing systems. In particular, the list of discussed topics include novel forms of interaction and emerging themes in HCI related to new application domains, more efficient and enjoyable interaction possibilities associated to smart objects and smart environments, challenges faced in designing, developing and using interactive systems involving multiple stakeholders.

text: Trends on Engineering Interactive Systems: an overview of works presented in workshops at EICS 2019 Workshops are a great opportunity for identifying innovative topics of research that might require discussion and maturation. This paper summarizes the outcomes of the workshops track of the 11th Engineering Interactive Computing Systems conference (EICS 2019), held in Valencia (Spain) on 18-21 June 2019. The track featured three workshops, one half-day, one full-day and one two-days workshop, each focused on specific topics of the ongoing research in engineering usable and effective interactive computing systems. In particular, the list of discussed topics include novel forms of interaction and emerging themes in HCI related to new application domains, more efficient and enjoyable interaction possibilities associated to smart objects and smart environments, challenges faced in designing, developing and using interactive systems involving multiple stakeholders.

year: 2019

title: Moehewa: Death, lifestyle and sexuality in the Maori world

authors: Nikora, Linda Waimarie

subjects: Maori

abstract: Customary death ritual and traditional practice have continued for the Maori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Maori and any one, or a combination, of the following: a queen, takatapui, butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Maori visual narratives record such liaisons and erotic experience as joyously normal. And yet some people choose to remain in the closet. With three case studies, we reflect on mourning rituals or tangi – Maori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. We use the Maori term takatapui to refer to these partnerships.

text: Moehewa: Death, lifestyle and sexuality in the Maori world Customary death ritual and traditional practice have continued for the Maori (indigenous) people of Aotearoa/New Zealand, despite intensive missionary incursion and the colonial process. This paper critically considers what occurs when the deceased is different, in a most significant way. What happens when you die – and you are Maori and any one, or a combination, of the following: a queen, takatapui, butch, like that, gay, she-male, lesbian, transsexual, a dyke, intersex, tomboy, kamp, drag, homosexual, or just queer? Who remembers you and how? Same sex relationships today are still discouraged or denied, although traditional chant and Maori visual narratives record such liaisons and erotic experience as joyously normal. And yet some people choose to remain in the closet. With three case studies, we reflect on mourning rituals or tangi – Maori death rites, in a same sex relationship, or for a gay, lesbian or transsexual family member. We use the Maori term takatapui to refer to these partnerships.

year: 2013