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Dissertations / Theses on the topic 'Air conditioning Heating Ventilation'

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Published: 4 June 2021

Last updated: 1 February 2022

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1

Kuegler, Kurt W. "Heating, ventilation and air conditioning engineering and design /." Online version of thesis, 1990. http://hdl.handle.net/1850/10982.

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2

Tang, Dechao. "Modelling of heating and air-conditioning system." Thesis, University of Strathclyde, 1985. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=21451.

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The shortage of natural resources calls for energy conservation and the changing structure of modern science and technology makes possible the efficient dynamic energy modelling. This thesis presents a general review of existing techniques in the field of building and plant system energy modelling and concentrates on the establishment of a generalised modelling tool - the control volume conservation state space approach - to cope with the developing modern technology. The theoretical basis of this approach is discussed and verified in detail and applications demonstrated to the modelling of HV

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3

Leung, Wai-yip, and 梁偉業. "Indoor air quality and heating, ventilation & air conditioning systemsin office buildings." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1997. http://hub.hku.hk/bib/B31253787.

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4

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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5

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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6

Gross, Bryan Eric. "Psychrometric application to closed loop vapor degreasing." Thesis, Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/16993.

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7

Haque, Mohammed Ansarul. "An investigation of fresh air ventilation requirements for air-conditioned buildings in Singapore." Thesis, University of London, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326153.

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8

Knall, Peter J. "Heating, Ventilation, and Air Conditioning Fault Detection Using the Fuzzy Jess Toolkit." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1395094657.

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9

Wang, Bo. "Unsteady wind effects on natural ventilation." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11653/.

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Ventilation stacks are becoming increasingly common in the design of naturally ventilated buildings. The overall aim of the work described is ultimately to improve design procedures for such buildings. This thesis presents the experimental and theoretical investigation of unsteady wind effects on natural ventilation of a single envelope with multiple openings for both wind alone, and wind and buoyancy combined cases. There are two types of openings: namely the sharp-edged orifice and the long opening (stacks being treated as long openings). Two methods are adopted: 1) direct wind tunnel measur

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10

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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11

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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12

Croxford, Ben. "An intelligent, domestic central heating controller." Thesis, University of Westminster, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359206.

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13

Straw, Matthew Peter. "Computation and measurement of wind induced ventilation." Thesis, University of Nottingham, 2000. http://eprints.nottingham.ac.uk/10110/.

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This thesis aims to predict wind induced ventilation of a structure through the application of current analytical techniques, computational fluid dynamics simulations and novel techniques for ventilation flows induced by turbulent mechanisms. Validation of the predictions was carried out through full-scale measurements undertaken on a purpose built test structure. The structure was of cubic design with an external dimension of 6m. The construction of this full-scale research structure at Silsoe Research Institute, Bedfordshire, England, provided a unique opportunity for undertaking full-scale

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14

Tunzi, Michele. "Optimising the operation of hydronic heating systems in existing buildings for connection to low temperature district heating networks." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/38724/.

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This thesis presents a new method developed to adapt existing hydronic systems in buildings to take advantage of low temperature district heating (LTDH). The work carried out was performed by extensive use of buildings’ energy modelling, validated through recorded data. Two different case studies were investigated and the dynamic heat demand profiles, simulated for each building, were used to evaluate plate radiators connected to single and double string heating loops. The method considered an optimisation procedure, based on supply and return temperatures, to obtain the required logarithmic m

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15

Waszkiewicz, Sylwia Danuta. "Adsorption refrigeration system using zeolite and methanol." Thesis, University of Bristol, 2003. http://hdl.handle.net/1983/6e735af3-f009-4b49-b7c5-68d0437a4cbb.

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16

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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17

Alghatam, Mohammed Jassim. "Solar ventilation and air-conditioning system investigation using the finite element method." Thesis, Loughborough University, 1985. https://dspace.lboro.ac.uk/2134/7408.

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The finite element method is used to predict numerically steady state, two-dimensional laminar and turbulent thermal buoyant and convective recirculating flows. The governing equations are solved by the finite element method using Galerkin Weighting functions, with velocity, pressure, and temperature as dependent variables. Turbulent separating, recirculating flow in the complex geometry of a room with variable inlets, outlets and convective chimney ducts is investigated. The room is ventilated/air-conditioned utilising the solar energy via a flat plate collector and solar absorption aircondit

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18

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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19

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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20

Chan, Hoy-Yen. "Solar facades for heating and cooling in buildings." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/12319/.

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The aim of this thesis is to study the energy performance of a building integrated heating and cooling system. The research objectives are to investigate the system operating characters, to develop mathematical models for the heating and cooling systems, to demonstrate the technologies experimentally, to identify the best designs for a combined system and to investigate the cost effectiveness of the system. The main components of the systems are the aluminium plate façade and the building wall behind it, these form a plenum between them and the air is then heated or cooled as it flows through

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21

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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22

Simons, Martin W. "The prediction of ventilation effectiveness parameters for design studies." Thesis, Coventry University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323519.

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23

Gillott, Mark C. "A novel mechanical ventilation heat recovery/heat pump system." Thesis, University of Nottingham, 2000. http://eprints.nottingham.ac.uk/12148/.

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The trend towards improving building airtightness to save energy has increased the incidence of poor indoor air quality and associated problems, such as condensation on windows, mould, rot and fungus on window frames. Mechanical ventilation/heat recovery systems, combined with heat pumps, offer a means of significantly improving indoor air quality, as well as providing energy efficient heating and cooling required in buildings. This thesis is concerned with the development of a novel mechanical ventilation heat recovery/heat pump system for the domestic market. Several prototypes have been dev

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24

Abro, Riazuddin S. "Photovoltaic powered enhanced ventilation for buildings in hot climates." Thesis, University of Sheffield, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298962.

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25

Ho, Wai Fuk. "Air-conditioning system design for optimum control performance in Hong Kong." Thesis, Loughborough University, 2000. https://dspace.lboro.ac.uk/2134/7242.

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Studies on design for control optimization of air-conditioning (a/c) system for better performance in Hong Kong are reported in this thesis. Typical plant configuration data was collected from an in-depth survey of a/c systems and control used in Hong Kong. Control performance has been used for the first time as an objective for optimizing a/c system designs. The study investigates and illustrates that optimization of a/c systems for application in the Hong Kong by simulation is promising and flexible. The accuracy of simulation is enhanced by using the survey data. The survey shows that some

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26

Bensalem, Rafik. "Wind driven natural ventilation in courtyard and atrium-type buildings." Thesis, University of Sheffield, 1991. http://etheses.whiterose.ac.uk/3000/.

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This study investigated the effectiveness of wind-driven natural ventilation in courtyard and atrium-type buildings, particularly in the context of ventilative cooling. Courtyard and atrium buildings are currently enjoying great popularity. Perhaps a primary reason for their revival comes from the energy and environmental awareness of the current period, in which courtyard and atrium concepts are emerging as very promising. Wind-driven ventilation is one of the most basic and probably among the most efficient ways to prevent overheating, and provide cooling in the summer season, especially in

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27

Aboul, Naga Mohsen M. "Natural ventilation and cooling by evaporation in hot-arid climates." Thesis, University of Leeds, 1990. http://etheses.whiterose.ac.uk/4043/.

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In hot climates, outside air is too hot during the day. In hot arid climates, low humidity increases discomfort. For comfort, hot air should be cooled before flowing into dwellings and moisture in the moving air increased. For the poor, comfort must be sought cheaply. In places without electricity only 'natural' ventilation is feasible. The air temperature difference between the sunny and the shaded side of a building can be exploited to promote ventilation. Ventilation cooling can be enhanced with an 'evaporative cooling cavity' attached to a dwelling on its shaded side. The cavity has a top

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28

Hawkins, M. E. "Fuzzy rule-based control of ducted air flows." Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334222.

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29

Abdul, Ghani S. A. A. "An investigation into water ingress through ground vehicle heating ventilation and air conditioning unit." Thesis, University of Nottingham, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268509.

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30

Böttcher, Christof. "An automotive carbon dioxide air-conditioning system with heat pump." Thesis, Port Elizabeth Technikon, 2003. http://hdl.handle.net/10948/206.

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The refrigerant circuits of car air-conditioning systems are fitted with so-called open type compressors, because there is only a lip seal preventing the refrigerant from leaking from the compressor housing to the atmosphere. In addition, the cycle uses damping elements between the compressor and the other components on the suction and pressure lines to reduce vibration and noise transfer from the engine to the car body. Both the lip seal and damping elements result in loss of refrigerant as they are made from elastomers and leak with age, and, under high temperature conditions inside the engi

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31

Brouns, Corine E. "A study of the multi-zone air movement model." Thesis, Coventry University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357221.

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32

Chan, Wai-Tin. "Multidisciplinary approach of design for acceptable indoor air quality." Thesis, University of Leeds, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.289460.

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33

Whiffen, Thomas Richard. "Thermal mass enhancement for energy saving in UK offices." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/31564/.

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Energy use in buildings accounts for more than a third of global energy demand, with humans seeking to create comfortable internal environments year-round. In the UK, air or water active thermal mass systems have demonstrated viability at delivering energy efficient comfort to office spaces. Whilst an attractive proposition, there are limitations to the cooling capacity and dynamic thermal response, giving rise to overheating in poorly designed buildings. The thesis work presented documents the investigation into active thermal mass enhancement to a prototype ventilated hollow core sample. Thr

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34

Jarumongkonsak, Pornput. "Development and performance investigation on solar-powered thermoelectric radiant cooling in building-integrated system for a bedroom under hot and humid climate." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/33629/.

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In order to replace a conventional air-conditioner (AC) based on vapour compression technology that directly has high global warming potential and also currently consumes the most fossil fuel primary energy in building sector of tropical countries for generating thermal comfort on sleeping purpose, other alternative green space cooling technologies, as thermoelectric cooling (TEC), has to be improved to have same performance with AC. This research aims to develop and investigate a performance of Solar-powered Thermoelectric Radiant Cooling (STRC) system, as the combination of TEC and radiant c

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35

Sutcliffe, Helen C. "Infiltration and air change studies in large single cell buildings." Thesis, Coventry University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303351.

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36

Mohammad, W. S. "Space air-conditioning of mechanically-ventilated rooms : computation of flow and heat transfer." Thesis, Cranfield University, 1986. http://hdl.handle.net/1826/4022.

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Computational studies of two- and three-dimensional, turbulent recirculating flows within mechanically-ventilated enclosures are reported. Two principal cases are examined: (i) two-dimensional offset jets: and (ii) three-dimensional flow induced in rooms by supply jets emanating from low or high side-wall registers. The calculations were undertaken using iterative finite-domain proceedures which solve the conservation equations for mass, momentum and enthalpy, together with additional transport equations for the turbulent kinetic energy and its dissipation rate . The effect of buoyancy waS. ex

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37

Duan, Zhiyin. "Investigation of a novel dew point indirect evaporative air conditioning system for buildings." Thesis, University of Nottingham, 2011. http://eprints.nottingham.ac.uk/12200/.

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This study aims to improve the performance of existing indirect evaporative coolers. A new dew point indirect evaporative cooler with counter-current heat/mass exchanger was developed in this research by optimal design, material selection, numerical simulation, experimental investigations and economic, environmental, regional acceptance analysis. A new dew point heat/mass exchanger using a counter-current flow pattern was designed by numerical simulation in terms of material, structure, geometrical sizes and operating conditions. The numerical results indicate that under a typical cooling desi

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38

Florenz-Esnal, Julian. "Temperature prediction models and their application to the control of heating systems." Thesis, University of Manchester, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335130.

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39

Casey, Sean. "Nano-structured sorbents for rapid response interior air humidity buffering applications." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13115/.

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Within a closed environment, (e.g. building, car, aircraft) that is thermally and hygrically isolated from the exterior climate, one approach that can help reduce the energy required for indoor mechanical climate control whilst increasing comfort levels for occupants is to use hygrothermal coatings on top of existing materials. Hygrothermal coatings can re-introduce both thermal and hygric buffering within the isolated envelope. Understanding of the behaviour of these coatings allows them to be optimized for different environments. The overall aim of the research is to design the functional pr

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40

Chen, Jiu Fa. "Optimization of vapour compression air conditioner/heat pumps using refrigerant mixtures." Thesis, University of Leeds, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.343629.

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41

Harper, C. A. "The domestic central heating market in Great Britain : a technical and economic appraisal." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355267.

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42

Babus'Haq, Ramiz F. "Optimal heat transfer design for district-heating and cooling pipelines in air-filled cavities." Thesis, Cranfield University, 1986. http://hdl.handle.net/1826/4214.

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District-heating and/or cooling systems are gradually becoming popular all over the world for heating and/or cooling of large premises. Current conventional practice for the DHC underground distribution networks is to place the supply and the return pipelines side-by-side in air-filled trencRe's. However, t present investigation has shown that by optimising the location of the pipelines, the thermal insulation provided by the air around the pipes can be maximised. This is achieved by placing the hot pipeline above the cold one, the exact position depending upon the temperatures involved. For m

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43

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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44

Deng, Shi-Ming. "Modelling and control of an air conditioning system with emphasis on cooling coil behaviour." Thesis, London South Bank University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303912.

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45

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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46

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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47

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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48

Taub, Steven C. (Steven Charles). "The energy effects of occupant controlled heating, ventilation and air conditioning systems in office buildings." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/17377.

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49

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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50

Dickinson, Stephen John. "A building heating system simulation and optimisation tool incorporating bond graphs and genetic algorithms." Thesis, Lancaster University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.481623.

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