title: Heat pump integration for total site waste heat recovery

authors: Liew, Peng Yen

abstract: Total Site Heat Integration (TSHI) promotes energy recovery between processes to enhance overall energy efficiency of an industrial complex. Various industrial waste heat utilisation technologies have been studied to improve the energy efficiency of energy system. Vapour compression as an open loop heat pump system has good potential to be used to upgrade the waste heat to useful heat in Total Site systems. Vapour compression systems upgrade low grade waste heat by supplying a low quantity of high pressure steam (thermocompressor) or mechanical work (mechanical-compressor) to generate higher pressure steam, as is common with evaporation systems. The vapour compression system recovers the latent heat content of the industrial waste heat, which reduces cooling demand, decreasing the demand for high quality steam and reducing boiler load. This paper introduces an effective Total Site targeting methodology to integrate open cycle heat pump systems, i.e. vapour compression technologies, into an integrated industrial energy system for enhancing overall site energy efficiency. Industrial waste heat and high quality steam demand are able to be reduced simultaneously though this integration. The energy reduction and cost-benefit of thermo-compressor and mechanical-compressor installations are compared through a literature case study. The case study showed a deficit of heat at the MPS and a surplus of heat the LPS, which was identified as a candidate for compression according to the appropriate placement principle for heat pumps. For the case study, a four-stage mechanical vapour compression system and two-stage thermal vapour compression system resulted in an energy cost reductions of 343,859 USD/y and 168,829 USD/y.

text: Heat pump integration for total site waste heat recovery Total Site Heat Integration (TSHI) promotes energy recovery between processes to enhance overall energy efficiency of an industrial complex. Various industrial waste heat utilisation technologies have been studied to improve the energy efficiency of energy system. Vapour compression as an open loop heat pump system has good potential to be used to upgrade the waste heat to useful heat in Total Site systems. Vapour compression systems upgrade low grade waste heat by supplying a low quantity of high pressure steam (thermocompressor) or mechanical work (mechanical-compressor) to generate higher pressure steam, as is common with evaporation systems. The vapour compression system recovers the latent heat content of the industrial waste heat, which reduces cooling demand, decreasing the demand for high quality steam and reducing boiler load. This paper introduces an effective Total Site targeting methodology to integrate open cycle heat pump systems, i.e. vapour compression technologies, into an integrated industrial energy system for enhancing overall site energy efficiency. Industrial waste heat and high quality steam demand are able to be reduced simultaneously though this integration. The energy reduction and cost-benefit of thermo-compressor and mechanical-compressor installations are compared through a literature case study. The case study showed a deficit of heat at the MPS and a surplus of heat the LPS, which was identified as a candidate for compression according to the appropriate placement principle for heat pumps. For the case study, a four-stage mechanical vapour compression system and two-stage thermal vapour compression system resulted in an energy cost reductions of 343,859 USD/y and 168,829 USD/y.

year: 2016

title: Do Golden Parachutes increase CEO’s DESIRE to be taken over? empirical evidence from australia and united states

authors: Reddy, Krishna

subjects: change in control payments

abstract: This study investigates whether the large payouts that are available to Chief Executive Officers (CEOs) from a change in corporate control (takeover) do motivate some CEOs to seek acquisition of their firms by making them more attractive to a takeover bid. Using Australian and the US data, employing OLS regression, we report that there is a significant relationship between a CEOs change in control payments and their firm’s net cash levels (one of the key factors of takeover attractiveness). Our empirical results also indicate that CEOs desire their firms to be acquired by decreasing shareholders’ equity, thus supporting the view that change in control payments exist primarily for incumbent managers. Our findings provide support to the proposition that managers enjoy having large cash balances to be available to them as it allows them with greater opportunities to derive personal benefit from it. Therefore, our findings suggest that managers prefer to have large cash balances available to them to ensure their future wellbeing by setting up favourable terms in the control agreements.

text: Do Golden Parachutes increase CEO’s DESIRE to be taken over? empirical evidence from australia and united states This study investigates whether the large payouts that are available to Chief Executive Officers (CEOs) from a change in corporate control (takeover) do motivate some CEOs to seek acquisition of their firms by making them more attractive to a takeover bid. Using Australian and the US data, employing OLS regression, we report that there is a significant relationship between a CEOs change in control payments and their firm’s net cash levels (one of the key factors of takeover attractiveness). Our empirical results also indicate that CEOs desire their firms to be acquired by decreasing shareholders’ equity, thus supporting the view that change in control payments exist primarily for incumbent managers. Our findings provide support to the proposition that managers enjoy having large cash balances to be available to them as it allows them with greater opportunities to derive personal benefit from it. Therefore, our findings suggest that managers prefer to have large cash balances available to them to ensure their future wellbeing by setting up favourable terms in the control agreements.

year: 2012

title: Representations of te reo Māori and te ao Māori in a translingual picturebook: How my Koro became a Star

authors: Barbour, Julie Renee

subjects: Indigenous language and culture

abstract: While English is the most commonly used language in Aotearoa New Zealand, it is a multilingual nation with two languages recognised as official: te reo Māori (the Māori language) and New Zealand Sign Language. The English language is dominant in children’s literature published in Aotearoa New Zealand, but since the 1980s there has been an increase in the number of picturebooks featuring two languages, te reo Māori and English. Previous work has explored how representations of te reo Māori and English in pukapuka pikitia reorua (dual language picturebooks) in Aotearoa reflect changing attitudes towards the two languages. In this article, we focus particularly on Brianne Te Paa and Story Hemi-Morehouse’s picturebook How my Koro became a Star. Originally written in te reo Māori, this multi-award winning picturebook is located at the beginning of Matariki, the Māori New Year celebration. In a move away from the linguistic analysis of te reo Māori being ‘borrowed’ by English, we consider how storytellers like Te Paa weave Māori language together with English in a translingual publication, supporting reader comprehension of Māori vocabulary and cultural meanings through embedded illustrations and explanations, inviting the curious reader to learn beyond the story.

text: Representations of te reo Māori and te ao Māori in a translingual picturebook: How my Koro became a Star While English is the most commonly used language in Aotearoa New Zealand, it is a multilingual nation with two languages recognised as official: te reo Māori (the Māori language) and New Zealand Sign Language. The English language is dominant in children’s literature published in Aotearoa New Zealand, but since the 1980s there has been an increase in the number of picturebooks featuring two languages, te reo Māori and English. Previous work has explored how representations of te reo Māori and English in pukapuka pikitia reorua (dual language picturebooks) in Aotearoa reflect changing attitudes towards the two languages. In this article, we focus particularly on Brianne Te Paa and Story Hemi-Morehouse’s picturebook How my Koro became a Star. Originally written in te reo Māori, this multi-award winning picturebook is located at the beginning of Matariki, the Māori New Year celebration. In a move away from the linguistic analysis of te reo Māori being ‘borrowed’ by English, we consider how storytellers like Te Paa weave Māori language together with English in a translingual publication, supporting reader comprehension of Māori vocabulary and cultural meanings through embedded illustrations and explanations, inviting the curious reader to learn beyond the story.

year: 2025