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You searched for subject:(Variable Refrigerant Volume). Showing records 1 – 3 of 3 total matches.

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1. Karunakaran, R. Studies on energy conservation potential in air handling systems using Genetic based fuzzy logic controller; -.

Degree: Mechanical Engineering, 2014, Anna University

In the quest for an energy conservative building design there is now newlinea great opportunity for flexible and sophisticated air conditioning systems newlinecapable of addressing better thermal comfort Indoor Air Quality IAQ and newlineenergy efficiency that are strongly desired Most of the software Airconditioned newlinebuildings operate for a majority of hours at part load conditions newlineAs people spend more number of hours indoors research on indoor air quality newlineand energy conservation have become imperative The present Conventional newlineChilled Water CHW based air conditioning systems are less effective at newlinePart load conditions But the Variable Refrigerant Volume VRV Airconditioning newline A C system has aspects like low energy consumption low cost newlineand less space requirements The application of the inverter air conditioner for newlinecommercial and residential purposes becomes increasingly wide owing to its newlinelow energy consumption and its capacity to maintain comfort With a growing newlineemphasis on adaptive flexibility the part played by optimum controls has newlinebecome a vital aspect in deciding the overall system performance newlineApplications of intelligent control like Fuzzy Logic Controller FLC newlineespecially to combined Variable Refrigerant Volume and Variable Air newlineVolume VRV VAV air conditioning systems have attracted more interest newlinein recent years than classical control systems newlineThe variable air volume VAV system is a recent innovation in newlineHeating Ventilating and Air Conditioning HVAC design It is aimed at newlinereducing building energy consumption while maintaining the primary role of newlineair conditioning newline newline

appendix p.158-173, reference p.174-187

Advisors/Committee Members: Iniyan, S.

Subjects/Keywords: Airconditioning; Conventional Chilled Water; Fuzzy Logic Controller; Heating Ventilating and Air Conditioning; Indoor Air Quality; Variable Air Volume; Variable Refrigerant Volume

Page 1

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Karunakaran, R. (2014). Studies on energy conservation potential in air handling systems using Genetic based fuzzy logic controller; -. (Thesis). Anna University. Retrieved from http://shodhganga.inflibnet.ac.in/handle/10603/26355

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Karunakaran, R. “Studies on energy conservation potential in air handling systems using Genetic based fuzzy logic controller; -.” 2014. Thesis, Anna University. Accessed August 19, 2019. http://shodhganga.inflibnet.ac.in/handle/10603/26355.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Karunakaran, R. “Studies on energy conservation potential in air handling systems using Genetic based fuzzy logic controller; -.” 2014. Web. 19 Aug 2019.

Vancouver:

Karunakaran R. Studies on energy conservation potential in air handling systems using Genetic based fuzzy logic controller; -. [Internet] [Thesis]. Anna University; 2014. [cited 2019 Aug 19]. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/26355.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Karunakaran R. Studies on energy conservation potential in air handling systems using Genetic based fuzzy logic controller; -. [Thesis]. Anna University; 2014. Available from: http://shodhganga.inflibnet.ac.in/handle/10603/26355

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation


Vilnius Gediminas Technical University

2. Kanapienytė, Rasa. Biurų pastatų naudojant skirtingus šilumnešius vėsinimas.

Degree: Master, Power and Thermal Engineering, 2011, Vilnius Gediminas Technical University

Baigiamajame magistro darbe nagrinėjama problema – dideli energijos poreikiai vėsinimui biurų pastatuose, dėl vis didėjančių mikroklimato kokybės reikalavimų, didesnių šilumos pritekėjimų į patalpas ir šilumos išsiskyrimų dėl naudojamos įrangos. Problemos sprendimui darbe suprojektuotos keturios oro kondicionavimo sistemos su skirtingais šilumnešiais: oru, vandeniu ir freonu. Atsižvelgiant į šilumnešio tipą suprojektuotos ventiliatorinių konvektorių, aktyviųjų šalčio sijų, freoninė ir orinė vėsinimo sistemos. Oro kondicionavimo sistemos analizuojamos remiantis realaus tipinio administracinio pastato pavyzdžiu. Lyginamoms sistemoms buvo atlikti hidrauliniai ir aerodinaminiai skaičiavimai, įvertintos sistemų pradinės investicijos, apskaičiuotos energijos sąnaudos ir eksploatacijos išlaidos. Ekonominio skaičiavimo metu buvo įvertintas sistemų atsipirkimo laikas ir atlikta elektros kainų jautrumo analizė. Šio tyrimo rezultatai parodo, kokia sistema iš visų darbe nagrinėtųjų sistemų yra tinkamiausia biurų pastatams, pagal efektyvų elektros energijos naudojimą ir pradines investicijas.

The final master's work deals with the problem of high energy needs for cooling in office buildings, due to the growing of higher quality requirements for microclimate, higher heat gains in premises and equipment heat emissions used in. To solve the problem four different types of cooling systems with different coolants: air, water and refrigerant are designed at work. Depending on the type of coolant were designed fan coil units, active chilled beams, variable refrigerant volume system and air cooling systems. Air conditioning systems are analyzed on the basis of an example of the real typical office building. The hydraulic and aerodynamic calculations were made, initial investments, energy expenditures and operating costs were estimated for the compared systems. The pay-back time of the systems was assessed and the sensitivity analysis of electricity prices was carried out by economic calculations. The results of this investigation show, which system of all analysed systems at work is the most appropriate for office buildings, according to the efficient use of electricity and the initial investments.

Advisors/Committee Members: Čiuprinskas, Kęstutis (Master’s thesis supervisor), Paulauskaitė, Sabina (Master’s thesis reviewer), Rogoža, Artur (Master’s thesis reviewer), Kazlauskas, Jonas Rimantas (Master’s degree committee chair), Rimeika, Mindaugas (Master’s degree committee member), Lukoševičius, Valdas (Master’s degree committee member), Valančius, Kęstutis (Master’s degree committee member), Rynkun, Genrika (Master’s degree session secretary).

Subjects/Keywords: Šilumnešiai; Ventiliatoriniai konvektoriai; Orinė sistema; Freoninė sistema; Aktyviųjų šalčio sijų vėsinimo sistema; Coolants; Fan coil units; Air cooling system; Variable refrigerant volume system; Active chilled beam system

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Kanapienytė, Rasa. (2011). Biurų pastatų naudojant skirtingus šilumnešius vėsinimas. (Masters Thesis). Vilnius Gediminas Technical University. Retrieved from http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110615_175606-91904 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Chicago Manual of Style (16th Edition):

Kanapienytė, Rasa. “Biurų pastatų naudojant skirtingus šilumnešius vėsinimas.” 2011. Masters Thesis, Vilnius Gediminas Technical University. Accessed August 19, 2019. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110615_175606-91904 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

MLA Handbook (7th Edition):

Kanapienytė, Rasa. “Biurų pastatų naudojant skirtingus šilumnešius vėsinimas.” 2011. Web. 19 Aug 2019.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Vancouver:

Kanapienytė, Rasa. Biurų pastatų naudojant skirtingus šilumnešius vėsinimas. [Internet] [Masters thesis]. Vilnius Gediminas Technical University; 2011. [cited 2019 Aug 19]. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110615_175606-91904 ;.

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete

Council of Science Editors:

Kanapienytė, Rasa. Biurų pastatų naudojant skirtingus šilumnešius vėsinimas. [Masters Thesis]. Vilnius Gediminas Technical University; 2011. Available from: http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110615_175606-91904 ;

Note: this citation may be lacking information needed for this citation format:
Author name may be incomplete


NSYSU

3. Chuang, Yi-hung. Analysis and Experimental Investigation on Energy Conservation of VRV Systems in Hot Humid Climates.

Degree: Master, Mechanical and Electro-Mechanical Engineering, 2004, NSYSU

Being located in subtropical area, the weather in Taiwan is hot and humid which imposing huge cooling load on buildings. Conventionally, central air-conditioning plants were designed using refrigerant compressors to make chilled water, and then pumped through the zone pumps to meet the cooling load, providing air-conditioning by Fan Coil Unit (FCU) or Air-Handling Units (AHU) by ductwork. To meet the varying cooling demand, two important systems were developed for energy savings, namely, the Variable Water Volume (VWV) system, and the Variable Air Volume (VAV) system, which has been widely adapted in Taiwan area. The working principle is mainly devoted to adjusting the volume of the chilled water and/or air volume delivered through inverter-driven pimps and fans to achieve energy saving. On the other hand, recently in Japan, an important energy-saving air-conditioning system has been developed which directly varying the refrigerant flow rate to meet the varying cooling demand by inverter-driven compressors, named VRV system. Comparative to the conventional air-conditioning system, the heat exchange mechanism of the VRV system has been effectively enhanced by direct exchange of the refrigerant and the cool air, which is in effect a combination of the VWV and VAV system. It provided huge energy saving potential for the application on buildings with moderate cooling loads, such as 100 USRT or so. It is the goal of this research project, to evaluate the performance of the VRV system in Taiwanâs hot and humid climate, by performing full-scale experimental investigation so that energy savings effect can be validated quantitatively. Since VRV system is fairly new in Taiwan, the validation of the system performance under local weather condition is of particular importance. It is anticipated that through the changing of the operation conditions, such as different outdoor conditions, various partial load conditions, and different scheduling of the VRV system, the power consumption of the VRV vs. conventional system can be compared precisely and quantitatively. These experimental data will, in turn, provides valuable reference to the establishment of the building energy consumption index in Taiwan, which outwits the direct adoption of the foreign data such as from Japan, in achieving a much reliable database. Advisors/Committee Members: Kuan-hsiung Yang (committee member), Hsien-te Lin (chair), Shih-hung Wang (chair).

Subjects/Keywords: VRV Air-conditioning System; Building energy conservation; Full-scale Experiment; Variable Refrigerant volume

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Chuang, Y. (2004). Analysis and Experimental Investigation on Energy Conservation of VRV Systems in Hot Humid Climates. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708104-160033

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Chuang, Yi-hung. “Analysis and Experimental Investigation on Energy Conservation of VRV Systems in Hot Humid Climates.” 2004. Thesis, NSYSU. Accessed August 19, 2019. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708104-160033.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Chuang, Yi-hung. “Analysis and Experimental Investigation on Energy Conservation of VRV Systems in Hot Humid Climates.” 2004. Web. 19 Aug 2019.

Vancouver:

Chuang Y. Analysis and Experimental Investigation on Energy Conservation of VRV Systems in Hot Humid Climates. [Internet] [Thesis]. NSYSU; 2004. [cited 2019 Aug 19]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708104-160033.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Chuang Y. Analysis and Experimental Investigation on Energy Conservation of VRV Systems in Hot Humid Climates. [Thesis]. NSYSU; 2004. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708104-160033

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

.