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dc.contributor.author
Kalogeris, Konstantinos
en
dc.date.accessioned
2017-05-02T07:21:36Z
dc.date.available
2017-05-03T00:00:20Z
dc.date.issued
2017-05-02
dc.identifier.uri
https://repository.ihu.edu.gr//xmlui/handle/11544/15276
dc.rights
Default License
dc.subject
Energy Performance of Hospitals
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dc.subject
ASHRAE
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dc.subject
K.E.v.A.K.
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dc.subject
Euromedica Kuanous Stavros
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dc.subject
Energy Audit
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dc.subject
System Advisory Model
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dc.subject
Google Sketch Up
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dc.subject
Energy Plus
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dc.subject
Energy Simulation
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dc.subject
Net-Zero Energy Hospital
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dc.title
Zero energy Hospitals
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heal.type
masterThesis
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heal.creatorID.email
kostaskalogerhs@gmail.com
heal.classification
Engineering
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heal.keyword.LCSH
Energy auditing
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heal.keywordURI.LCSH
Hospital buildings--Energy conservation
heal.keywordURI.LCSH
Hospitals--Energy consumption
heal.keywordURI.LCSH
Architecture and energy conservation
heal.keywordURI.LCSH
Buildings--Environmental engineering
heal.keywordURI.LCSH
Environmental engineering
heal.keywordURI.LCSH
Energy conservation--Environmental aspects
heal.keywordURI.LCSH
Renewable energy sources
heal.language
en
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heal.access
free
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heal.license
http://creativecommons.org/licenses/by-nc/4.0
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heal.recordProvider
School of Science and Technology, MSc in Energy Building Design
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heal.publicationDate
2016-12-21
heal.abstract
The present dissertation deals with the energy performance of hospitals and medical units and contains a bibliographic and experimental part. Hospitals, being one of the most energy consuming parts of a country’s building stock, are one of the most difficult and interesting examples of an energy performance analysis for buildings. What is more, their design is not focused mainly on energy conservation or maximization of a worker’s performance like most similarly huge buildings of the commercial sector. Their focus is a healthy environment which will accelerate the recuperation period of the average patient. This is reflected on most technical guides, such as ASHRAE and the Greek Κ.Ε.ν.Α.Κ. Both of them consider hospitals to be an almost separate type of building with strict regulations concerning ventilation and hygiene. However, the main purpose of the dissertation is not to study a theoretical scenario of a new hospital being built, which would allow the author a great deal of freedom in making assumptions, such as an unlimited theoretical budget, or choosing the most beneficial courses of actions regardless of cost or feasibility, such as choosing the optimal location or having enough available space to install any type of equipment. The main purpose is to evaluate a real life example with all the hindrances and restrictions one would expect from such a case. The hospital which is evaluated is the Euromedica Kuanous Stavros, located in the urban environment of Thessaloniki. This direction is also reflected on the bibliographical part which is also focused on studies performed on various healthcare facilities around the world. The bibliographical part deals with cases of analysis of energy audit in hospitals, the assessment of affordable and “cheap” improvements ( a methodology which is preferred by the majority of the board of directors and the management in most hospitals, especially the privately funded ones). The bibliographic part contains case studies of real life hospitals which compare different models, methodologies and technologies. The case study of the university hospital in Naples also employs a similar methodology to the one chosen by the author and the supervising Professor. The experimental part can be divided in two sections. The first one entails the description of an energy audit performed on the premises of the hospital. Due to time constraints, analytical measurements were not performed. Instead the walkthrough method was preferred. On the second part, the information collected during the audit was used to perform an energy simulation of the premises through the Energy Plus Simulation Tool. The financial feasibility of installing Renewable energy Sources Systems is also examined. Due to the location and the lack of district heating in the city of Thessaloniki, the only viable option is solar energy production. Using The System Advisory Model (S.A.M. 2016.3.14), it was estimated that approximately 116.000 kWh could produces on an annual basis. The cost was estimated by using retail prices and adding other factors (installation cost and maintenance) the total cost was estimated at 100.000 Euros. Of course this production of renewable energy would not be able to cover the extravagant loads of a medical facility. And since this is a real life study, the financial risk was calculated. Considering a discount rate of 10% and a payback period of 20 years the Net present Value of the cash flows generated by mounted PV array was calculated. Since the result is positive (>0) the installation of photovoltaic is indeed a viable investment. With the help of drawing tools (AutoCAD 2014 for reading and extracting geometrical data from the architectural plans, Google Sketch Up along with the Energy Plus Plug in order to create an input data file for the Energy Plus) as well as finding climatic data for the city of Thessaloniki (in .epw format), the simulation was performed. The results were generally positive since the final energy consumption (including equipment and HVAC) is 285, 70 kWh/m2. This consumption is lower than the average energy consumption of a Greek hospital which ranges from 370 to 430 kWh/m2/per annum and even, better than some European Countries (as seen in 2 STATE OF THE ART REVIEW ON ENERGY EFFICIENCY STUDIES FOR HOSPITALS AND MEDICAL UNITS). The Primary energy Consumption is 828, 53 kWh/m2. This amount is too huge and can not be reduced to such a degree so that the building can be characterized as a Net-Zero Energy Hospital. Even including RES and an efficient management of the building’s energy schedule through Automatisation the total amount of energy would, at most, reduced by 10-15 %. This result can be explained, since buildings located in an urban environment do not, under most circumstances, have the options of independent power plants or enough available land mass for geothermal purposes. Combining these factors with the lack of insulation, reduces the total energy performance even further. However, this study offers the chance to examine a realistic example and proves the imminent need for proper Energy Classification of all Hospitals and Medical facilities in Greece, as well the accurate detection of the design flaws in already existing buildings
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heal.advisorName
Anastasellos, Dimitrios
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heal.committeeMemberName
Anastasellos, Dimitrios
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heal.committeeMemberName
Martinopoulos, Georgios
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heal.academicPublisher
IHU
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heal.academicPublisherID
ihu
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heal.numberOfPages
121
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