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Dissertations / Theses on the topic 'Ventilation And Air-Conditioning (HVAC) Systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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1

Dil, Anton J. "Markov modelling of HVAC systems." Thesis, Loughborough University, 1993. https://dspace.lboro.ac.uk/2134/7301.

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Dynamic simulations have been successfully applied to the modelling of building heating, ventilating and air-conditioning (HVAC) plant operation. These simulations are generally driven using time-series data as input. Whilst time-series simulations are effective, they tend to be expensive in terms of computer execution time. A possible method for reducing simulation time is to develop a probabilistic picture of the model, by characterising the model as being in one of several states. By determining the probability for being in each model state, predictions of long-term values of quantities of

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2

Li, Mingyang Kusiak Andrew. "Application of computational intelligence in modeling and optimization of HVAC systems." [Iowa City, Iowa] : University of Iowa, 2009. http://ir.uiowa.edu/etd/397.

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3

Chillarige, Raghavendra Srinivas. "Development of expert systems in heating, ventilating and air-conditioning (HVAC) an energy approach /." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=849.

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Thesis (M.S.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains xi, 137 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 119-126).

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4

Unruh, Cassie, Austin Johnson, and Lisa Nordman. "Residential Telemetry Applications for HVAC Control." International Foundation for Telemetering, 2011. http://hdl.handle.net/10150/595643.

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ITC/USA 2011 Conference Proceedings / The Forty-Seventh Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2011 / Bally's Las Vegas, Las Vegas, Nevada<br>Much of the energy consumed in developed countries is for residential heating and cooling. Substantial savings are possible if one can monitor the indoor environment at many locations, and then actively control the heating, ventilation and air conditioning (HVAC) system. This project uses a wireless sensor array and dedicated microcontroller system to control a residential HVAC system. A low data rate, ad-h

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5

Zajic, I. "A Hammerstein-bilinear approach with application to heating ventilation and air conditioning systems." Thesis, Coventry University, 2013. http://curve.coventry.ac.uk/open/items/bb74b3bc-b12b-4a92-8aac-9781131cc75e/1.

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This thesis considers the development of a Hammerstein-bilinear approach to non-linear systems modelling, analysis and control systems design, which builds on and extends the applicability of an existing bilinear approach. The underlying idea of the Hammerstein-bilinear approach is to use the Hammerstein-bilinear system models to capture various physical phenomena of interest and subsequently use these for model based control system designs with the premise being that of achieving enhanced control performance. The advantage of the Hammerstein-bilinear approach is that the well-structured syste

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6

Sklavounos, Dimitris C. "Detection of abnormal situations and energy efficiency control in Heating Ventilation and Air Conditioning (HVAC) systems." Thesis, Brunel University, 2015. http://bura.brunel.ac.uk/handle/2438/12843.

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This research is related to the control of energy consumption and efficiency in building Heating Ventilation and Air Conditioning (HVAC) systems and is primarily concerned with controlling the function of heating. The main goal of this thesis is to develop a control system that can achieve the following two main control functions: a) detection of unexpected indoor conditions that may result in unnecessary power consumption and b) energy efficiency control regarding optimal balancing of two parameters: the required energy consumption for heating, versus thermal comfort of the occupants. Methods

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7

Gungor, Faruk Emre. "Computer Aided Noise Prediction In Heating, Ventilating And Air Conditioning Systems." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1210087/index.pdf.

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This thesis aims at preparing a user-friendly software tool for the prediction and analysis of the noise generated in Heating, Ventilating and Air Conditioning (HVAC) Systems elaborating the standardized prediction formulae and data coming from the research studies. For the analysis portion of the software, different types of indoor noise criteria are introduced and implemented in the software to ease the investigation of the level and the quality of the sound perceived by the occupant in a room through such criteria. General software structure and implementation of HVAC elements are explained

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8

Smith, Shaun J. "Determination of k-factors of HVAC system components using measurement and CFD modelling." Thesis, University of Nottingham, 1998. http://eprints.nottingham.ac.uk/11059/.

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This thesis conforms conventional and advanced experimental techniques for the measurement of and mathematical prediction of velocity pressure-loss factors (k-factors) for fittings used in heating, ventilation and air-conditioning (HVAC) systems. After an extensive study of different tracer-gas experimental techniques, the constant injection method is applied to various duct fittings on a small scale HVAC system situated in a laboratory. The results are compared with those of experiments performed using a more conventional technique using a Pitot-static tube. The basis of the experimental proc

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9

Lambert, Geoffrey C. "The development of a unique algorithm for the solution of HVAC system design optimisation problems." Thesis, University of Liverpool, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359199.

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10

Tang, Man-wah Myra, and 鄧敏華. "Indoor air quality and HVAC systems in institutional buildings." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2002. http://hub.hku.hk/bib/B31255322.

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11

Ghanta, Nikhilesh. "Meta-modeling and Optimization of Computational Fluid Dynamics (CFD) analysis in thermal comfort for energy-efficient Chilled Beams-based Heating, Ventilation and Air-Conditioning (HVAC) systems." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/126989.

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Thesis: S.M., Massachusetts Institute of Technology, Computation for Design and Optimization Program, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 172-178).<br>With the rapid rise in the use of air conditioning systems and technological advancements, there is an ever-increasing need for optimizing the HVAC systems for energy efficiency while maintaining adequate occupant thermal comfort. HVAC systems in buildings alone contribute to almost 15% of the overall energy consumption across all sectors in the world and optimizing this would con

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12

Thompson, Glendon Raymond. "Business reasons for utilizing renewable energy applications in facilities to assist in extending the life of the heating ventilation and air conditioning systems." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22631.

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Thesis (M. S.)--Building Construction, Georgia Institute of Technology, 2008.<br>Committee Chair: Dr. Linda Thomas-Mobley; Committee Member: Dr. Del Kiernan-Lewis; Committee Member: Professor Kathy Roper.

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13

Martinovic, Zarko. "Design a PV – system for a large building." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-17539.

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This study presents the complete design of a photovoltaic system in commercial buildings. PV installation for Multiarena was primary used for internal consumption, rest of production will be sent according intentions in grid. Project presents theoretical demand calculations for building consumptions. According to the theoretical calculations numerical study has been provided by software Indoor Climate and Energy program. Detailed electric optimization strategy can be founded in project description, as well as the sizing of the photovoltaic installation and economic and financial issues related

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14

Tiwari, Shashank Prasad, and Sumanth Potluri. "Analyzing the adaption of energy optimization modules in HVAC systems : A case study within Sweden’s commercial market." Thesis, Uppsala universitet, Industriell teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-423408.

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This study has been motivated by an understanding of the twin needs to reduce carbon dioxide emissions and increase the access to have complete control of the ventilation system available in the buildings. In consideration of the increasing utilization of fossil fuels, there is an extensive threat of increased global warming conditions associated. To ensure sustainable development, improvement of social welfare and wealth creation, energy is an essential factor. The consumption of electricity and energy delivered per floor area in Sweden has been considerably rising since 2014. The aim of this

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Dombrosky, Robson Fernandes. "Eficientização de um sistema de climatização aeroportuário a partir do uso da termoacumulação." Universidade do Vale do Rio dos Sinos, 2012. http://www.repositorio.jesuita.org.br/handle/UNISINOS/4050.

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Submitted by William Justo Figueiro (williamjf) on 2015-06-26T22:57:56Z No. of bitstreams: 1 43.pdf: 3316113 bytes, checksum: 59a696189af2b9803f0adedd6828d93e (MD5)<br>Made available in DSpace on 2015-06-26T22:57:56Z (GMT). No. of bitstreams: 1 43.pdf: 3316113 bytes, checksum: 59a696189af2b9803f0adedd6828d93e (MD5) Previous issue date: 2012<br>Banco Santander / Banespa<br>O trabalho apresenta um estudo do sistema de climatização do aeroporto da cidade de Porto Alegre, visando determinar e mensurar as oportunidades de redução dos seus custos operacionais utilizando o tanque de termoacumul

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Bouwer, Werner. "Designing a dynamic thermal and energy system simulation scheme for cross industry applications / W. Bouwer." Thesis, North-West University, 2004. http://hdl.handle.net/10394/592.

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The South African economy, which is largely based on heavy industry such as minerals extraction and processing, is by nature very energy intensive. Based on the abundance of coal resources, electricity in South Africa remains amongst the cheapest in the world. Whilst the low electricity price has contributed towards a competitive position, it has also meant that our existing electricity supply is often taken for granted. The economic and environmental benefits of energy efficiency have been well documented. Worldwide, nations are beginning to face up to the challenge of sustainable energy - in

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17

Halla, Ondřej. "Mikroklima bazénových hal." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-391922.

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The diploma thesis deals with the problems of the indoor environment of swimming pool halls. Firstly, it describes issues and principles of designing HVAC system in the areas with high humidity production. Thesis then focuses on various approaches to calculations of evaporation from the water surface and different possibilities of dehumidification including different types of HVAC units. This knowledge was applied to the design of HVAC system for particular assigned building, for which are proposed two different solutions. Thesis includes experimental part, its aim is to analyse one specific c

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18

Lapáček, Milan. "Čištění vzduchotechnických systémů a dosažitelné energetické úspory." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232143.

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The main aim of this thesis is to explore fouling of air ducts and its influence on energy consumption of HVAC systems. The first part focuses on typical parts that create the IAQ in buildings and on evaluating energy consumption of air transportation. The following section deals with the theories of fluid flow, flow regimes and pressure losses that are created as a side effect. The thesis outlines possible methods of assessing the impact of pollution with an emphasis on pressure losses and their influence on the fan power consumption. The actual experimental measurement, conducted in a select

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19

Salsbury, Timothy I. "Fault detection and diagnosis in HVAC systems using analytical models." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/7337.

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Faults that develop in the heat exchanger subsystems in air-conditioning installations can lead to increased energy costs and jeopardise thermal comfort. The sensor and control signals associated with these systems contain potentially valuable information about the condition of the system, and energy management and control systems are able to monitor and store these signals. In practice, the only checks made are to verify set-points are being maintained and that certain critical variables remain within predetermined limits. This approach may allow the detection of certain abrupt or catastrophi

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20

Liu, Hubert H. "Analytsis and performance optimization of commercial chiller/cooling tower systems." Thesis, Georgia Institute of Technology, 1997. http://hdl.handle.net/1853/15895.

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21

Leung, Wai-yip. "Indoor air quality and heating, ventilation & air conditioning systems in office buildings /." Hong Kong : University of Hong Kong, 1997. http://sunzi.lib.hku.hk/hkuto/record.jsp?B18734315.

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22

Sui, Di. "Characterization of HVAC operation uncertainty in EnergyPlus AHU modules." Thesis, Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51911.

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This study addresses 5 uncertainties that exist in the operation of HVAC systems, which will presumably affect the actual energy consumption of the HVAC system in comparison to the consumption under idealized bahavior. We consequently add these parameters and their uncertainty range into the source code, eventually resulting in an EnergyPlus program in which the HVAC operation uncertainty is embedded as so-called model form uncertainty. The upgraded EnergyPlus is tested for each parameter uncertainty separately, and to show the impact of each uncertainty albeit for hypothetical uncertainty ran

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23

Wan, Man Pun. "Comparison of underfloor ventilation systems and ceiling based ventilation system in thermal comfort and indoor air quality aspects /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?MECH%202002%20WAN.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 61-63). Also available in electronic version. Access restricted to campus users.

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24

Ibrahim, Sherine Taher Mahmoud. "Simulation of air-conditioning loads in electrical power systems." Thesis, University of Bath, 1997. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362265.

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25

Karlsson, Ejwertz Viktor. "Design of user interface for heating, ventilation and air conditioning systems." Thesis, Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-34806.

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The project was carried out at Karlstad University during the spring of 2014 as a degree project for a Degree of Bachelor of Science in Innovation and Design Engineering and consists of 22.5 ECTS. The supervisor was lecturer Lennart Wihk from Karlstad University. The examiner was professor Leo de Vin. The project was conducted for Swegon AB and dealt with developing a user interface for systems regulating climate parameters in indoor environments, such as hotel rooms or office environments. The area of focus has been on developing the user interface with regard to end users, giving it the righ

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Kelso, Richard M. "Automated commissioning of HVAC systems using first principle models." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/7585.

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Commissioning of HVAC systems has potential for significant improvements in occupant satisfaction, comfort and energy consumption, but is very labour-intensive and expensive as practiced at this time. Previous investigators have capitalized on digital control systems' capability of logging and storing data and of interfacing with external computers for open loop control by developing methods of automated fault detection and diagnosis during normal operation. Some investigators have also considered the application of this technique in commissioning. This thesis investigates the possibility of u

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27

Korolija, Ivan. "Heating, ventilating and air-conditioning system energy demand coupling with building loads for office buildings." Thesis, De Montfort University, 2011. http://hdl.handle.net/2086/5501.

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The UK building stock accounts for about half of all energy consumed in the UK. A large portion of the energy is consumed by nondomestic buildings. Offices and retail are the most energy intensive typologies within the nondomestic building sector, typically accounting for over 50% of the nondomestic buildings’ total energy consumption. Heating, ventilating and air conditioning (HVAC) systems are the largest energy end use in the nondomestic sector, with energy consumption close to 50% of total energy consumption. Different HVAC systems have different energy requirements when responding to the

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28

Rabie, Neil. "Energy management in a telecommunications environment with associated energy and cost modelling of HVAC." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-11102005-122948/.

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29

Hayat, Tariq. "Modelling, simulation and control of mine ventilation systems." Thesis, University of Sheffield, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387494.

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30

Kamal, Rajeev. "Optimization and Performance Study of Select Heating Ventilation and Air Conditioning Technologies for Commercial Buildings." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6656.

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Buildings contribute a significant part to the electricity demand profile and peak demand for the electrical utilities. The addition of renewable energy generation adds additional variability and uncertainty to the power system. Demand side management in the buildings can help improve the demand profile for the utilities by shifting some of the demand from peak to off-peak times. Heating, ventilation and air-conditioning contribute around 45% to the overall demand of a building. This research studies two strategies for reducing the peak as well as shifting some demand from peak to off-peak per

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Neale, James Richard Mechanical &amp Manufacturing Engineering Faculty of Engineering UNSW. "Experimental and numerical investigation of noise generation from the expansion of high velocity HVAC flows on board ocean going fast ferries." Awarded by:University of New South Wales. School of Mechanical and Manufacturing Engineering, 2006. http://handle.unsw.edu.au/1959.4/28371.

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This thesis details a study of strategies used to limit the flow generated noise encountered in the outlet diffusers of high velocity heating, ventilation and air conditioning (HVAC) duct systems. The underlying noise rating criterion is drawn from the specifications covering ocean going aluminium fast ferries. Although directed primarily towards the fast ferry industry the results presented herein are applicable to other niche high velocity HVAC applications. Experimental tests have been conducted to prove the viability of a high velocity HVAC duct system in meeting airflow requirements whils

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32

Giles, Jonathon Richard. "Energy comparison of under floor air distribution heating ventilation and air conditioning systems in office buildings." [Ames, Iowa : Iowa State University], 2008.

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33

Graham, W. J. "Adaptive control of wet heating systems." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370317.

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34

Ertug, Muzeyyen Oya. "Computer Aided Design And Simulation Of Year Around Air Conditioning-comfort Application." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610356/index.pdf.

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The aim of this thesis is to develop a computer program to design and simulate air conditioning-comfort application of a selected building, for a year period, on an hourly basis. In order to carry out this study, a computer program named AHUSIM.m, is prepared with Matlab computing language. The design and simulation procedure starts with preparing the inputs like indoor, outdoor design states, zone cooling and heating loads, along with the general data for conditioning-comfort equipment. The program, in light of these input data, performs the plotting of the psychrometric processes -including

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35

Ahmad, Mardiana Idayu. "Novel heat recovery systems for building applications." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/13852/.

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The work presented in this thesis will explore the development of novel heat recovery systems coupled with low carbon technologies, and its integration to become one device with multifunction (building integrated heat recovery/cooling/air dehumidifier. In the first part of this thesis, an experimental performance of an individual heat recovery unit using Micro Heat and Mass Cycle Core (MHM3C) made of fibre papers with cross flow arrangement has been carried out. The unit was tested in an environmental control chamber to investigate the effects of various parameters on the performance of heat/e

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Chen, Xiangjie. "Investigations of heat powered ejector cooling systems." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/29721/.

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In this thesis, heat powered ejector cooling systems was investigated in two ways: to store the cold energy with energy storage system and to utilize low grade energy to provide both electricity and cooling effect. A basic ejector prototype was constructed and tested in the laboratory. Water was selected as the working fluid due to its suitable physical properties, environmental friendly and economically available features. The computer simulations based on a 1-0 ejector model was carried out to investigate the effects of various working conditions on the ejector performance. The coefficients

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37

Twort, Charles Tyler. "An exergy analysis of mine cooling systems." Thesis, University of Nottingham, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323333.

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Mohamed, Y. "Interactive analysis of power station cooling systems." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380600.

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Gaidukov, Vladimir A. "Multiple criteria optimisaiton of building heating systems." Thesis, De Montfort University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391425.

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Al-Nizari, Hamdan Omar A. "Dynamic performance and refrigerant flow control in refrigeration systems." Thesis, Brunel University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315452.

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James, K. A. "Dynamic mathematical modelling of refrigeration systems and heat pumps." Thesis, London South Bank University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383651.

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Ip, Kenneth C. W. "Dynamic modular simulation of variable water and air volume flow systems in buildings." Thesis, University of Bristol, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251526.

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Al-Ajmi, Farraj F. "The potential for ground-sourced cooling of domestic buildings in desert." Thesis, Loughborough University, 2003. https://dspace.lboro.ac.uk/2134/34538.

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In many dry desert climates such as in Kuwait, the summer season is long with a mean daily maximum temperature of 45°C. A round 80% of total electricity generation is consumed by air-conditioning systems in domestic buildings. A hybrid cooling technique to reduce the domestic cooling demand would have both environmental and economic benefits for Kuwait. A passive cooling technique, which assists the situation, is ground cooling. In this thesis a thermal model of an earth air heat exchanger (EAHE) has been developed to calculate the pre-cooling of ventilation air that can be achieved for a buil

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Datta, Debarati. "Frosting and demand defrost control of retail food refrigeration systems." Thesis, Brunel University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285094.

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Mempouo, B. "Investigations of novel heat pump systems for low carbon homes." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/12043/.

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The European standard EN15450 states that the Coefficient of Performance (COP) target range for a Ground Source Heat Pump (GSHP) installation should lie within the range of 3.5 to 4.5; when used for heating a building, and a typical Air-Source Heat Pump (ASHP) has a COP of 2.0 to 3.0 at the beginning of the heating season and then decrease gradually as the ambient air becomes cooler, whereas a typical GSHP is in the range of 3.5 –4.0, also at the beginning of the heating season and then decrease gradually as heat is drawn from the ground. For these reasons, in the middle of winter, when the CO

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Naghashzadegan, Mohammad. "Steady state and dynamic behaviour of vapour compression refrigeration systems." Thesis, University of Sheffield, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284386.

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Tomski, Thomas. "The design of shell-and-tube heat exchangers using expert systems." Thesis, University of Brighton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314803.

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Schomburg, Rolf. "Evaluation of methods for detecting endotoxin on filters of heating-, ventilation- and air-conditioning systems." [S.l.] : [s.n.], 2003. http://www.diss.fu-berlin.de/2003/250/index.html.

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Silva, Pedro Miguel Abreu. "Multiple-model structures applied to fault tolerant control in heating, ventilation and air conditioning systems." Thesis, University of Reading, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541957.

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Krus, Christopher James. "Analysis of life cycle cost methods for heating, ventilation, and air conditioning systems in hospitals." Thesis, Austin, Texas, University of Texas at Austin, 2004. http://hdl.handle.net/10945/37781.

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CIVINS<br>The purpose of this research was to evaluate the current body of knowledge relating to life cycle costing of heating, ventilation and air conditioning systems (HVAC) systems in hospitals. Life cycle cost (LCC) is the total cost of procuring, designing, owning, operating, maintaining, and disposing of a building over its useful life (including its fuel and water, energy, labor, and replacement components), determined on the basis of a systematic evaluation and comparison. Both government and private hospitals were studied. Hospitals have several characteristics that made them usefu

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