title: Surge capability testing of supercapacitor families using a lightning surge simulator

authors: Kularatna, Nihal

subjects: Equivalent circuits

abstract: Supercapacitors (SCs) are capable of storing energy in the range of fractional joules to several thousands of joules despite their lower dc voltage ratings. Farad-order capacitances combined with milliohm-order equivalent series resistances provide time constants ranging from fractional seconds to seconds. Given these time constants, compared to the time durations of power line transients in the range of a few microseconds to several hundreds of microseconds, these devices may be able to withstand short-duration surges with energy values specified in IEEE C62-XX series, IEC 61400-4-5, and similar standards. However, there is little or no manufacturer datasheet information on these aspects. This paper provides details of an automatic tester interfaced with a lightning surge simulator, a test procedure, and summarized test data on three different families of SCs. The test data set provides some valuable insight in estimating the capabilities of these new SC families to withstand surges and transients, which, in turn, could lead to nontraditional applications.

text: Surge capability testing of supercapacitor families using a lightning surge simulator Supercapacitors (SCs) are capable of storing energy in the range of fractional joules to several thousands of joules despite their lower dc voltage ratings. Farad-order capacitances combined with milliohm-order equivalent series resistances provide time constants ranging from fractional seconds to seconds. Given these time constants, compared to the time durations of power line transients in the range of a few microseconds to several hundreds of microseconds, these devices may be able to withstand short-duration surges with energy values specified in IEEE C62-XX series, IEC 61400-4-5, and similar standards. However, there is little or no manufacturer datasheet information on these aspects. This paper provides details of an automatic tester interfaced with a lightning surge simulator, a test procedure, and summarized test data on three different families of SCs. The test data set provides some valuable insight in estimating the capabilities of these new SC families to withstand surges and transients, which, in turn, could lead to nontraditional applications.

year: 2011

title: Interactive solar panel simulation tool - from GHI to PV output

authors: Suppers, Joris

subjects: computer science

abstract: The production and integration of solar panels is steadily growing in New Zealand and worldwide. The most common way to install solar panels in New Zealand is flat on top of the most north-facing roof. This method is used as it is space efficient, reduces mounting costs and will capture most of the sun’s movement throughout the day. New Zealand homes typically have a small roof pitch. This means an installed solar panel will have a low tilt, allowing for best input in summer. However, this may not be the best result for individuals, as they may want a different outcome such as: maximum energy output in winter, maximum yearly output or a balanced output throughout each month. This paper describes a solar panel tool, which has been developed to enable users to explore interactively the impact on electricity production based on the orientation of the panels.

text: Interactive solar panel simulation tool - from GHI to PV output The production and integration of solar panels is steadily growing in New Zealand and worldwide. The most common way to install solar panels in New Zealand is flat on top of the most north-facing roof. This method is used as it is space efficient, reduces mounting costs and will capture most of the sun’s movement throughout the day. New Zealand homes typically have a small roof pitch. This means an installed solar panel will have a low tilt, allowing for best input in summer. However, this may not be the best result for individuals, as they may want a different outcome such as: maximum energy output in winter, maximum yearly output or a balanced output throughout each month. This paper describes a solar panel tool, which has been developed to enable users to explore interactively the impact on electricity production based on the orientation of the panels.

year: 2017

title: He Tangata Kei Tua: Guidelines for biobanking with Māori.

authors: Hudson, Maui

abstract: Māori ethical frameworks recognise that all research in New Zealand is of interest to Māori and outline community expectations of appropriate behavior in research to deliver the best outcomes for Māori. Research contributes to the broader development objectives of society and this endeavor is being supported by biobanking infrastructure. Ethics has a specific role in guiding key behaviours, processes and methodologies used in research.
This document outlines a framework for addressing Māori ethical issues within the context of biobanking. It draws on a foundation of mātauranga (Indigenous knowledge) and tikanga Māori (Māori protocols and practices) and will be useful for researchers, ethics committee members and those who engage in consultation or advice about biobanking with Māori in local, regional, national or international settings.

text: He Tangata Kei Tua: Guidelines for biobanking with Māori. Māori ethical frameworks recognise that all research in New Zealand is of interest to Māori and outline community expectations of appropriate behavior in research to deliver the best outcomes for Māori. Research contributes to the broader development objectives of society and this endeavor is being supported by biobanking infrastructure. Ethics has a specific role in guiding key behaviours, processes and methodologies used in research.
This document outlines a framework for addressing Māori ethical issues within the context of biobanking. It draws on a foundation of mātauranga (Indigenous knowledge) and tikanga Māori (Māori protocols and practices) and will be useful for researchers, ethics committee members and those who engage in consultation or advice about biobanking with Māori in local, regional, national or international settings.

year: 2016