scholarly journals Modelling and Simulation of a Retail Commercial Refrigeration System

2021 ◽  
pp. 1-27
Author(s):  
Oliver Brownbridge ◽  
Matthew Sully ◽  
Joshua Noons ◽  
Ibrahim Albayati
Keyword(s):  
Research Centre ◽  
Refrigeration System ◽  
Total Energy Consumption ◽  
Holistic View ◽  
Expansion Valve ◽  
Suction Line ◽  
Valve Opening ◽  
The Uk ◽  
High Level ◽  
The University

Abstract Commercial food outlets in the UK are responsible for 3% of the UK total energy consumption, with refrigeration systems account for 29% of this total. This highlights the potential and importance of huge energy saving within commercial refrigeration systems. In this paper, a validated model that simulates a commercial refrigeration system installed over 2000 sqft to mimic a real express store installed at Riseholme Refrigeration Research Centre at the University of Lincoln, UK, is developed and presented. The detailed modelling of the display case using a temperature model comprising of three states include air inside the display case, products, and the evaporator. Additionally, the model presents a holistic view of the whole system with each subsystem cohesively linked together. Further focus has been given on the high temperature (HT) system due to the high level of installations of this system found in retail commercial refrigeration stores as well as low temperature (LT) systems featuring doors which decrease the heat transfer from the store into the cases. It is concluded that the trends of the simulation results for the display case temperatures, expansion valve opening degree, suction line pressures, and compressors power consumption, all have high resemblance to the trends of collected data obtained from Riseholme Refrigeration Research Centre. This supports the validation of the developed model.

scholarly journals Improving the operational skills of the health personnel working in the emergency departments

2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
R Arnone ◽  
G Romano ◽  
J Skinner ◽  
S Watt ◽  
C Poenicke ◽  
...  
Keyword(s):  
Best Practices ◽  
Emergency Departments ◽  
Health Personnel ◽  
Health Sector ◽  
Research Centre ◽  
The European Union ◽  
Research Activities ◽  
One Year ◽  
High Level ◽  
The University

Abstract In December 2013 the European Commission approved the project promoted by CEFPAS, The Centre for Training and Research in Public Health within the programme PROGRESS, “Improving the operational skills of health personnel working in the emergency departments. A useful tool to give concrete answers to EU policies on patients’ safety and to create new working opportunities”. This project aimed to combine the need to find innovative solutions in the field of healthcare with the objective of increasing the safety of patients in emergency departments, while also covering the need to promote worker mobility within the European Union. The key tool for implementing this goal is the exchange of experience and best practices. The project partners included: the Edinburgh University of Medicine, the Napier University (again in Edinburgh), the Dresden University of Technology, the Herlev Hospital (in Copenhagen) through the DIMS or the Danish Institute for Medical Simulation at the University of Copenhagen, as well as ISMETT and CREAM (the Research Centre of the University of Medicine) in Palermo. Every partner, during the planning, has provided the know how developed in the area of emergency. Specifically it has been analyzed the possibility to compare and visit the simulation Centres of Edinburgh, Dresden and Palermo, and to study the use, in each country, of innovative methodology during the training of the health personnel. The partner, during the planning of the project, studied also how to help people to find easier jobs opportunities in the health sector (so they thought to create a specific data base of the emergency departments operating in Italy, Scotland and Germany where to find a job or a chance for an internship). The project has lasted for one year and has provided research activities and the exchange of experience and best practices. Key messages There is a huge difference regarding the way in which the emergency system is organized within single countries around Europe. Comparing high-level organisations we have benefited in terms of ideas, projects and potential objectives to be set in order to improve our work and to improve results for patients.

Design for Patient Safety: A Review of the Effectiveness of Design in the UK Health Service

Volume 3 ◽  
2004 ◽  
Author(s):  
P. John Clarkson ◽  
James Ward ◽  
Peter Buckle ◽  
Dave Stubbs ◽  
Roger Coleman
Keyword(s):  
Patient Safety ◽  
Medical Error ◽  
Improve Patient Safety ◽  
Research Centre ◽  
Department Of Health ◽  
University Of Cambridge ◽  
Key Stakeholders ◽  
Consistent Picture ◽  
The Uk ◽  
The University

The Department of Health and the Design Council jointly commissioned a scoping study to deliver ideas and practical recommendations for a design approach to reduce the risk of medical error and improve patient safety across the NHS. The research was undertaken by the Engineering Design Centre at the University of Cambridge, the Robens Institute for Health Ergonomics at the University of Surrey and the Helen Hamlyn Research Centre at the Royal College of Art. The research team employed diverse methods to gather evidence from literature, key stakeholders, and experts from within healthcare and other safety-critical industries. Despite the multiplicity of activities and methodologies employed, what emerged from the research was a very consistent picture. This convergence pointed to the need to better understand the health care system as the context into which specific design solutions must be delivered. Without that broader understanding there can be no certainty that any single design will contribute to reducing medical error and the consequential cost thereof.

AIRGREEN2 - Clean Sky 2 Programme: Adaptive Wing Technology Maturation, Challenges and Perspectives

2018 ◽  
Author(s):  
Salvatore Ameduri ◽  
Antonio Concilio ◽  
Ignazio Dimino ◽  
Rosario Pecora ◽  
Sergio Ricci
Keyword(s):  
Research Centre ◽  
Development Path ◽  
Aerospace Research ◽  
European Project ◽  
Research Programs ◽  
Aerospace Applications ◽  
Adaptive Wing ◽  
High Level ◽  
The University

By introducing the progresses on Morphing currently achieved within the European Project “AIRGREEN2”, in Clean-Sky 2 GRA platform, this work presents a review of the research step forwards accomplished in the last decade by three Italian Partners largely active in the field: the Italian Aerospace Research Centre, the University of Naples “Federico II” and the Politecnico of Milano. A chronologic overview is at first presented, revisiting the research programs and the achieved results; an organic development path has been then built, starting from low TRL achievements up to arrive at the most complete technical accomplishments, characterized by a high level of integration and targeting specific aerospace applications.

Effect of the Thermostatic Expansion Valve Characteristics on the Stability of a Refrigeration System: Part II

2003 ◽  
Author(s):  
Amit Kulkarni ◽  
Dereje Agonafer ◽  
Roger Schmidt
Keyword(s):  
Load Condition ◽  
Transient Behavior ◽  
System Stability ◽  
Stable Operation ◽  
Refrigeration System ◽  
Expansion Valve ◽  
System Part ◽  
Suction Line ◽  
The Stability ◽  
Experimental Bench

The combination of increased power dissipation and increased packaging density has led to substantial increases in chip and module heat flux in high-end computers. The challenge has been to limit the rise in chip temperature. In the past virtually all-commercial computers were designed to operate at temperatures above the ambient. However researchers have identified the advantages of operating electronics at low temperatures. The current research focuses on IBM’s mainframe, which uses a conventional refrigeration system to maintain chip temperatures below that of comparable air-cooled systems, but well above cryogenic temperatures. An experimental bench was built to study the effect of variation of evaporator outlet superheat on system performance. Three different types of thermostatic expansion valves were tested in order to verify that the bulb size and bulb location have significant effect on the transient behavior of the system. Bulbs of each of the three thermostatic expansion valves were mounted at five different locations on the suction line. It was observed that the overall system stability increases as we move closer to the evaporator exit. It was also observed that there exists a region in the suction line at which the superheat variation is the least and placing the bulb at this region gives maximum stable operation of the system. This region can be defined as the minimum stable superheat point. Tests were conducted at five different load conditions 1000W, 750W, 500W, 250W and no load condition. It was observed that the system was the most stable at full load condition for all three types of valves and system stability consistently decreased as the load was decreased.

scholarly journals Creating a copyright literacy strategy

2020 ◽  
Author(s):  
Chris Morrison
Keyword(s):  
Academic Library ◽  
Open Science ◽  
Professional Services ◽  
Innovative Teaching ◽  
Teaching And Research ◽  
Creative Commons ◽  
Literacy Strategy ◽  
The Uk ◽  
High Level ◽  
The University

This presentation reports on the University of Kent’s development of a copyright literacy strategy. This has been developed to raise awareness of copyright amongst staff and students in order to minimise the risk of copyright infringement, as well as prevent copyright being a barrier to innovative teaching and research. This work builds on a multinational research project to assess the copyright literacy of information professionals (Todorova et al, 2017) and further research in the UK to understand copyright literacy within higher education institutions (Morrison & Secker, 2015; Morrison & Secker 2017; Morrison, 2018). The research has found that copyright is a source of anxiety for library staff who are often expected to have a high level of knowledge of copyright issues. This proves challenging when copyright presents a barrier to teaching and research, and there is a need for nuanced conversations about application of copyright exceptions and risk managed approaches (IFLA, 2018). Copyright has also been identified as a key issue at the intersection between information literacy and scholarly communication (ACRL, 2013). This is particularly relevant when advocating for open science and open scholarship such as identifying and using Creative Commons licensed content. The University of Kent copyright literacy strategy will set out a vision for raising awareness of copyright issues (University of Kent, 2019). It is being developed in collaboration between academic, library and other professional services staff and is intended to encourage its staff and students to take a critical yet responsible approach to managing use of copyright material. This presentation will explain the methodology used to consult with relevant stakeholders and address the tensions between different elements of the University. It will outline the key principles and values behind the strategy and report on practical benefits of adopting a strategic approach to copyright literacy.

scholarly journals Transição na Carreira Desportiva: Guião de Entrevista para Atletas (TCD-GEA)

Motricidade ◽  
2016 ◽  
Vol 12 (2) ◽  
pp. 1
Author(s):  
Nuno Domingos Garrido
Keyword(s):  
Human Development ◽  
Health Sciences ◽  
Research Centre ◽  
University Rankings ◽  
World University Rankings ◽  
Research Publications ◽  
The Times ◽  
High Level ◽  
The University ◽  
Sports Sciences

<p>The Journal Motricidade has always been walking in parallel with the scientific communities.</p><p>We found that the affiliation of most authors has, nearly always, a University (Uni) or a Research Center (RC). In fact it is almost impossible to conduct research outside these two universes. In this sense, Uni and RC feed the most, if not all, of scientific journals worldwide. By this I mean that is in the interest of Motricidade to be associated with high-quality RC and Uni equally recognized.</p><p>With regard to RC, Motricidade will publish this year a supplement of the International Congress of Research Centre in Sports Sciences, Health Sciences and Human Development (CIDESD). This RC has conducted research in a variety of areas within the Sport Sciences and Health and always with high recognition and associated publications. It was not by chance that this RC was evaluated with ‘very good’ by the Portuguese Foundation for Science and Technology (FCT) panel and has been granted funding.</p><p>This Congress, which takes place every two years, targets to converge research and high level practices within these three areas: Sports, Health and Human Development. The 2016 CIDESD edition is dedicated to "Exercise and Health, Sports and Human Development" and will be held at the University of Évora, between 11 and 12 November of 2016. The readers can check the program in the following link <a href="http://gdoc.uevora.pt/450120" target="_blank">http://gdoc.uevora.pt/450120</a> and get more information in the Congress Site available at <a href="http://www.cidesd2016.uevora.pt/">http://www.cidesd2016.uevora.pt/</a>.</p><p>With regard to Uni, Motricidade signed a cooperation protocol with the University of Beira Interior (UBI) in May of 2016, involving the development and dissemination of scientific knowledge in Sports Sciences, Psychology, Human Development and Health.</p><p>At the present, UBI hosts more than 6,000 students spread across five faculties - Arts &amp; Letters, Sciences, Health Sciences, Humanities and Social Sciences and Engineering.</p><p>When looking at the rankings, for instance the Times Higher Education (THE), v.2016-17 (<a href="https://www.timeshighereducation.com/world-university-rankings/universidade-da-beira-interior#ranking-dataset/589595">https://www.timeshighereducation.com/world-university-rankings/universidade-da-beira-interior#ranking-dataset/589595</a>), we can see that UBI is growing, mostly in Research publications, in other words, on the number of research publications, where at least one author is affiliated to the university (<a href="http://www.umultirank.org/#!/home?trackType=home&amp;sightMode=undefined">http://www.umultirank.org/#!/home?trackType=home&amp;sightMode=undefined</a>).</p><p>We hope to contribute to maintain or increase this number of publications, since among the various clauses drawn up, in order to encourage research with publication in peer review journals, it was agreed that any manuscript submitted and accepted for publication, whose author or collaborators are affiliated with UBI is due half the rate of publication.</p><p>Union makes us stronger.</p>

scholarly journals Current Research into Alcohol Problems in Primary Care

1986 ◽  
Vol 10 (2) ◽  
pp. 33-34
Author(s):  
Michael B. King
Keyword(s):  
Primary Care ◽  
General Practice ◽  
Alcohol Problems ◽  
Research Centre ◽  
Related Research ◽  
Health Studies ◽  
The Uk ◽  
The University

In June 1985 a group of researchers involved in the study of alcohol problems in general practice in the UK met informally in York for discussion and exchange of ideas. The meeting was arranged under the auspices of Professor David Robinson of the Addiction Research Centre, Institute for Health Studies of the University of Hull. The group included GPs, psychiatrists, psychologists, sociologists, and other related research workers.

scholarly journals Análisis de la generación de las irreversibilidades a partir del Coeficiente de Operación en un sistema de refrigeración por compresión mecánica de vapor con R-134a

2019 ◽  
pp. 10-15
Author(s):  
Carlos Rangel-Romero ◽  
Juan Carlos Rojas-Garnica ◽  
Guillermo Flores-Martínez ◽  
Antonio Barcelata-Pinzón
Keyword(s):  
Vapor Compression ◽  
Refrigeration System ◽  
Pressure Drops ◽  
Liquid Line ◽  
Expansion Valve ◽  
Individual Contributions ◽  
Suction Line ◽  
Vapor Compression Refrigeration ◽  
R 134A ◽  
Mathematical Process

This paper presents the development of individual contributions, in the generation of irreversibilities, of a refrigeration system based on the Coefficient of Operation (COP). The generation of irreversibilities has been widely analyzed using the principles of the first and second laws of thermodynamics. This analysis uses the parameters of enthalpy, entropy as well as the temperature and heat generated in each component. The method proposed in this work improves the accuracy of the calculations due to the use of the COP in the mathematical process, which includes the processes of heat transfer and pressure drops developed in the evaporator, suction line, compressor, discharge line, condenser, liquid line and expansion valve of the mechanical vapor compression refrigeration system. The mathematical analyzes and the experimental results are shown, with these it is concluded that the exposed procedure is closer to the real conditions than those traditional procedures found in the text books.

Promoting the Positive Development of Foster Children: Establishing Research in Germany

2012 ◽  
Vol 36 (1) ◽  
pp. 40-51 ◽  
Author(s):  
Klaus Wolf
Keyword(s):  
Foster Care ◽  
Foster Children ◽  
Positive Development ◽  
Research Centre ◽  
Practice Standards ◽  
The Uk ◽  
The University ◽  
National Practice

Research into foster care is less developed in Germany than in the UK or US and there are few national practice standards. In 2006, a research centre was established at the University of Siegen to improve the situation. Klaus Wolf describes the work undertaken so far and discusses the aims and philosophy underpinning the programme. He explains how research relevant to practice is combined with studies that have theoretical value in their own right, and how a combination of these informs current debates about foster care in Germany and elsewhere.

Measured Home Environment and Energy Consumption Compared to Accepted Standards

2013 ◽  
Vol 38 (3) ◽  
pp. 64-71
Author(s):  
Hasim Altan ◽  
Mohamed Refaee ◽  
Liangxiu Han ◽  
Masa Noguchi
Keyword(s):  
Energy Consumption ◽  
Indoor Air ◽  
Carbon Emissions ◽  
Environmental Conditions ◽  
Research Centre ◽  
Total Energy Consumption ◽  
Post Occupancy Evaluation ◽  
Occupancy Monitoring ◽  
The Uk ◽  
The Relationship

Energy usage of households accounts for a significant portion of total energy consumption and carbon emissions. Scottish homes today are highly energy consumers emitting on average 3 tonnes of CO2 per house annually and the amount exceeds the UK average of 2.75 tonnes of CO2. Moreover, 26% of the households are actually facing fuel poverty and it is therefore a critical task to efficiently manage and minimise energy trends in housing in order to meet carbon dioxide (CO2) emission reduction and energy consumption cut targets such as 80% overall cuts in carbon emissions by 2080 for the UK, compared with 1990 levels. The study has been undertaken within the Zero Energy Mass Custom Homes (ZEMCH) research network's demonstration projects e.g. ‘ZEMCH 109’. The existing post-council end-terraced house was intended to be extended in South Ayrshire, Scotland in 2012. As part of the project, the Building Environments Analysis Unit (BEAU) research centre has conducted a post occupancy monitoring of the energy and indoor environmental conditions e.g. indoor air temperature, relative humidity and CO2 levels in the Scottish affordable home which will also continue even after the construction of the newly built extension and the refurbishment of the existing home. It is therefore important for the successful demonstration of the ZEMCH 109 project and for the purpose of this study that a detailed monitoring and a post occupancy evaluation (POE) of the exiting NRGStyle home are performed sufficiently in order to investigate the relationship between energy consumption and the indoor environmental conditions and cross-checked with the accepted standards.

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