scholarly journals Development and Results from Application of PCM-Based Storage Tanks in a Solar Thermal Comfort System of an Institutional Building—A Case Study

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3877 ◽  
Author(s):  
F. Javier Batlles ◽  
Bartosz Gil ◽  
Svetlana Ushak ◽  
Jacek Kasperski ◽  
Marcos Luján ◽  
...  
Keyword(s):  
Phase Change Materials ◽  
Exergy Analysis ◽  
Heating System ◽  
Storage Tanks ◽  
Research Groups ◽  
Energy Research ◽  
Solar Cooling ◽  
Daily Energy ◽  
The University

An important element of a solar installation is the storage tank. When properly selected and operated, it can bring numerous benefits. The presented research relates to a project that is implemented at the Solar Energy Research Center of the University of Almeria in Spain. In order to improve the operation of the solar cooling and heating system of the Center, it was upgraded with two newly designed storage tanks filled with phase change materials (PCM). As a result of design works, commercial material S10 was selected for the accumulation of cold, and S46 for the accumulation of heat, in an amount of 85% and 15%, respectively. The article presents in detail the process of selecting the PCM material, designing the installation, experimental research, and exergy analysis. Individual tasks were carried out by research groups cooperating under the PCMSOL EUROPEAN PROJECT. Results of tests conducted on the constructed installation indicate that daily energy saving when using a solar chiller with PCM tanks amounts to 40% during the cooling season.

scholarly journals Exergy As a Measure of Sustainable Retrofitting of Buildings

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3139 ◽  
Author(s):  
Carlos Fernández Bandera ◽  
Ana Muñoz Mardones ◽  
Hu Du ◽  
Juan Echevarría Trueba ◽  
Germán Ramos Ruiz
Keyword(s):  
High Performance ◽  
Exergy Analysis ◽  
Local Contexts ◽  
Primary Selection ◽  
Optimization Methodology ◽  
The One ◽  
Reference Environment ◽  
Architectural Characteristics ◽  
The University

This study presents a novel optimization methodology for choosing optimal building retrofitting strategies based on the concept of exergy analysis. The study demonstrates that the building exergy analysis may open new opportunities in the design of an optimal retrofit solution despite being a theoretical approach based on the high performance of a Carnot reverse cycle. This exergy-based solution is different from the one selected through traditional efficient retrofits where minimizing energy consumption is the primary selection criteria. The new solution connects the building with the reference environment, which acts as “an unlimited sink or unlimited sources of energy”, and it adapts the building to maximize the intake of energy resources from the reference environment. The building hosting the School of Architecture at the University of Navarra has been chosen as the case study building. The unique architectural appearance and bespoke architectural characteristics of the building limit the choices of retrofitting solutions; therefore, retrofitting solutions on the façade, roof, roof skylight and windows are considered in multi-objective optimization using the jEPlus package. It is remarkable that different retrofitting solutions have been obtained for energy-driven and exergy-driven optimization, respectively. Considering the local contexts and all possible reference environments for the building, three “unlimited sinks or unlimited sources of energy” are selected for the case study building to explore exergy-driven optimization: the external air, the ground in the surrounding area and the nearby river. The evidence shows that no matter which reference environment is chosen, an identical envelope retrofitting solution has been obtained.

scholarly journals A interdisciplinaridade como eixo da organização do planejamento escolar e da prática docente

2017 ◽  
Vol 1 (1) ◽  
pp. 123
Author(s):  
Janaína Pereira Pretto Carlesso ◽  
Luiz Caldeira Brant de Tolentino Neto
Keyword(s):  
Basic Education ◽  
Graduate Programs ◽  
Research Groups ◽  
Exchange Relationship ◽  
Professional Qualification ◽  
The Public ◽  
School Planning ◽  
Interdisciplinary Character ◽  
The University

Resumo: O presente estudo objetiva, por meio de um estudo de caso, analisar de que forma o professor da educação básica faz uso da interdisciplinaridade na organização do planejamento escolar e em sua prática em sala de aula. A professora participante é oriunda de uma escola da rede básica de ensino. Para a coleta de dados foi realizada uma entrevista gravada e posteriormente transcrita. A professora entende e relaciona as disciplinas em contexto interdisciplinar no seu fazer docente, ressalta a importância da relação de troca entre os acadêmicos apontando a necessidade da integração da escola com a universidade. Uma rede de apoio e suporte técnico entre as escolas da rede pública e as universidades - principalmente dos programas de pós-graduação por meio de grupos de pesquisa e estudos com caráter interdisciplinar - é uma possibilidade de qualificação profissional do professor.Palavras-chave: Interdisciplinaridade; Formação docente; Ensino. The interdisciplinarity as an axis of the organization of school planning and teaching practiceAbstract: The present study aims to verify if the teacher of basic education makes use of the interdisciplinarity in the organization of the school planning and in its practice in the classroom through a case study. The participating teacher comes from a school in the basic education system. For data collection, an interview was performed that averaged 30 minutes duration. The interview was recorded and later transcribed. The teacher in her speech understands and relates the disciplines in an interdisciplinary context in her teaching. It emphasizes the importance of the exchange relationship between the academics pointing out the necessity of the integration of the school with the university. A network of support and technical support between the schools of the public basic education and the universities, mainly of the graduate programs through research groups and studies with an interdisciplinary character is a possible possibility of professional qualification of the teacher.Keywords: Interdisciplinarity. Teacher training. Education. 

Fundamental Research into Thin Films in a Developing Country

1972 ◽  
Vol 30 ◽  
pp. 500-501
Author(s):  
J.A. Eades ◽  
E. Grünbaum
Keyword(s):  
Thin Films ◽  
Growth Process ◽  
Empirical Process ◽  
Nucleation And Growth ◽  
Research Groups ◽  
Film Research ◽  
Fundamental Research ◽  
Controlled Deposition ◽  
The One ◽  
The University

In the last decade and a half, thin film research, particularly research into problems associated with epitaxy, has developed from a simple empirical process of determining the conditions for epitaxy into a complex analytical and experimental study of the nucleation and growth process on the one hand and a technology of very great importance on the other. During this period the thin films group of the University of Chile has studied the epitaxy of metals on metal and insulating substrates. The development of the group, one of the first research groups in physics to be established in the country, has parallelled the increasing complexity of the field.The elaborate techniques and equipment now needed for research into thin films may be illustrated by considering the plant and facilities of this group as characteristic of a good system for the controlled deposition and study of thin films.

Thai Buddhist Meditation Practice Tradition and a Case Study

2020 ◽  
pp. 12-15
Author(s):  
Somboon Watana, Ph.D.
Keyword(s):  
Present Article ◽  
Practice Research ◽  
Meditation Practice ◽  
Master Teachers ◽  
Buddhist Meditation ◽  
Good Deed ◽  
University Level ◽  
The University ◽  
The Buddha

Thai Buddhist meditation practice tradition has its long history since the Sukhothai Kingdom about 18th B.E., until the present day at 26th B.E. in the Kingdom of Thailand. In history there were many well-known Buddhist meditation master teachers, i.e., SomdejPhraBhudhajaraya (To Bhramarangsi), Phraajarn Mun Puritatto, Luang Phor Sodh Chantasalo, PhramahaChodok Yanasitthi, and Buddhadasabhikkhu, etc. Buddhist meditation practice is generally regarded by Thai Buddhists to be a higher state of doing a good deed than doing a good deed by offering things to Buddhist monks even to the Buddha. Thai Buddhists believe that practicing Buddhist meditation can help them to have mindfulness, peacefulness in their own lives and to finally obtain Nibbana that is the ultimate goal of Buddhism. The present article aims to briefly review history, and movement of Thai Buddhist Meditation Practice Tradition and to take a case study of students’ Buddhist meditation practice research at the university level as an example of the movement of Buddhist meditation practice tradition in Thailand in the present.

Teaching Computer Based Historical Data Analysis

1994 ◽  
Vol 6 (1) ◽  
pp. 52-58 ◽  
Author(s):  
Charles Anderson ◽  
Robert J. Morris
Keyword(s):  
Data Analysis ◽  
Social History ◽  
Historical Data ◽  
Good Practice ◽  
Computer Assisted ◽  
Historical Data Analysis ◽  
University Of Edinburgh ◽  
Computer Based ◽  
The University

A case study ofa third year course in the Department of Economic and Social History in the University of Edinburgh isusedto considerandhighlightaspects of good practice in the teaching of computer-assisted historical data analysis.

‘A Routh O’ Auld Nick-Nackets’ – the antiquarian collection of John Rae

2015 ◽  
Vol 36-37 (1) ◽  
pp. 163-183
Author(s):  
Paul Taylor
Keyword(s):  
United States ◽  
Nineteenth Century ◽  
Social Context ◽  
Moral Education ◽  
The United States ◽  
Representative Case ◽  
National Museums ◽  
The Individual ◽  
The University

John Rae, a Scottish antiquarian collector and spirit merchant, played a highly prominent role in the local natural history societies and exhibitions of nineteenth-century Aberdeen. While he modestly described his collection of archaeological lithics and other artefacts, principally drawn from Aberdeenshire but including some items from as far afield as the United States, as a mere ‘routh o’ auld nick-nackets' (abundance of old knick-knacks), a contemporary singled it out as ‘the best known in private hands' (Daily Free Press 4/5/91). After Rae's death, Glasgow Museums, National Museums Scotland, the University of Aberdeen Museum and the Pitt Rivers Museum in Oxford, as well as numerous individual private collectors, purchased items from the collection. Making use of historical and archive materials to explore the individual biography of Rae and his collection, this article examines how Rae's collecting and other antiquarian activities represent and mirror wider developments in both the ‘amateur’ antiquarianism carried out by Rae and his fellow collectors for reasons of self-improvement and moral education, and the ‘professional’ antiquarianism of the museums which purchased his artefacts. Considered in its wider nineteenth-century context, this is a representative case study of the early development of archaeology in the wider intellectual, scientific and social context of the era.

Disruptive innovation and operationalization in local and sustainable food systems: Examining the University of Toronto-Local Food Plus partnership

2019 ◽  
Vol 6 (1) ◽  
pp. 120-139
Author(s):  
Lori Stahlbrand
Keyword(s):  
Food Systems ◽  
Large Scale ◽  
Food System ◽  
Local Food ◽  
Disruptive Innovation ◽  
Government Support ◽  
Sustainable Food ◽  
University Of Toronto ◽  
The University

This paper traces the partnership between the University of Toronto and the non-profit Local Food Plus (LFP) to bring local sustainable food to its St. George campus. At its launch, the partnership represented the largest purchase of local sustainable food at a Canadian university, as well as LFP’s first foray into supporting institutional procurement of local sustainable food. LFP was founded in 2005 with a vision to foster sustainable local food economies. To this end, LFP developed a certification system and a marketing program that matched certified farmers and processors to buyers. LFP emphasized large-scale purchases by public institutions. Using information from in-depth semi-structured key informant interviews, this paper argues that the LFP project was a disruptive innovation that posed a challenge to many dimensions of the established food system. The LFP case study reveals structural obstacles to operationalizing a local and sustainable food system. These include a lack of mid-sized infrastructure serving local farmers, the domination of a rebate system of purchasing controlled by an oligopolistic foodservice sector, and embedded government support of export agriculture. This case study is an example of praxis, as the author was the founder of LFP, as well as an academic researcher and analyst.

Count Me In!: Ethnic Data Disaggregation Advocacy, Racial Mattering, and Lessons for Racial Justice Coalitions

JCSCORE ◽  
2018 ◽  
Vol 3 (1) ◽  
pp. 91-124
Author(s):  
OiYan A. Poon ◽  
Jude Paul Matias Dizon ◽  
Dian Squire
Keyword(s):  
Asian American ◽  
People Of Color ◽  
Racial Justice ◽  
Racial Equity ◽  
Equity In Education ◽  
Case Study Analysis ◽  
Data Disaggregation ◽  
Racial Solidarity ◽  
The University

This article presents a case study of the 2006-2007 Asian American and Pacific Islander (AAPI) student-led Count Me In! (CMI) campaign. This successful campaign convinced the University of California (UC) to account for 23 AAPI ethnic identities in its data system. Celebrated as a victory for AAPI interests in discourses over racial equity in education, which are often defined by a Black- white racial paradigm, CMI should also be remembered as originating out of efforts to demonstrate AAPI solidarity with Black students and to counter racial wedge politics. In the evolution of the CMI campaign, efforts for cross-racial solidarity soon faded as the desire for institutional validation of AAPI educational struggles was centered. Our case study analysis, guided by sociological frameworks of racism, revealed key limitations in the CMI campaign related to the intricate relations between people of color advocating for racial justice. We conclude with cautions for research and campaigns for ethnically disaggregated AAPI data, and encourage advocates and scholars to address AAPI concerns over educational disparities while simultaneously and intentionally building coalitions for racial equity in higher education.

Hindrance to the Integration of e-learning Adoption in Nigerian Universities

GIS Business ◽  
2019 ◽  
Vol 14 (5) ◽  
pp. 21-28
Author(s):  
Abasiama G. Akpan ◽  
Chris Eriye Tralagba
Keyword(s):  
Teaching And Learning ◽  
Case Study Research ◽  
University Education ◽  
Learning Approach ◽  
University System ◽  
Electronic Learning ◽  
E Learning ◽  
Nigerian University ◽  
The University

Electronic learning or online learning is a part of recent education which is dramatically used in universities all over the world. As well as the use and integration of e-learning is at the crucial stage in all developing countries. It is the most significant part of education that enhances and improves the educational system. This paper is to examine the hindrances that influence e-learning in Nigerian university system. In order to have an inclusive research, a case study research was performed in Evangel University, Akaeze, southeast of Nigeria. The paper demonstrates similar hindrances on country side. This research is a blend of questionnaires and interviews, the questionnaires was distributed to lecturers and an interview was conducted with management and information technology unit. Research had shown the use of e-learning in university education which has influenced effectively and efficiently the education system and that the University education in Nigeria is at the crucial stage of e-learning. Hence, some of the hindrances are avoiding unbeaten integration of e-learning. The aim of this research is to unravel the barriers that impede the integration of e-learning in universities in Nigeria. Nevertheless, e-learning has modified the teaching and learning approach but integration is faced with many challenges in Nigerian University.

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