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Dissertations / Theses on the topic 'Heat pump unit'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Parr, Eric. "Performance of an air-to-air heat pump heating and recovery unit at high ventilation rates." Thesis, University of Central Lancashire, 2007. http://clok.uclan.ac.uk/20042/.

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This thesis reports on design and performance studies of a prototype combined air source heat pump and storage system, retro fitted to heat occupied spaces subjected to high ventilation rates. The source of heat is from the air in the extract duct. Two limiting thermal conditions exist. The first is the thermal capacity of air passing over the ducted heat exchangers. The second is the dew and freezing points of the exhaust air, because of the insulating effect of ice on exchanger fins and tubes. Both are alleviated to a significant extent with high mass flow rates passing down the duct, since

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2

Zhang, Lingxi. "Techno-economic and environmental assessment of a smart multi-energy grid." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/technoeconomic-and-environmental-assessment-of-a-smart-multienergy-grid(c517bfe4-585e-4d49-bafb-d97dbfc15aa9).html.

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This PhD thesis proposes a bottom-up approach that accurately addresses the operational flexibility embedded in each part of a multi-energy system (MES). Several models which cover the simulations from replicating domestic electrified demands to power system scheduling are proposed. More specifically, a domes-tic multi-energy consumption model is firstly developed to simulate one minute resolution energy profiles of individual dwellings with the installation of prospec-tive technologies (i.e., electric heat pumps (EHPs), electric vehicles (EVs)). After-wards, a fast linear programming (LP) uni

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3

Bodelsson, Cecilia, and Emma Sandersson. "Kompaktaggregat till Passivhus i Sverige." Thesis, Växjö University, School of Technology and Design, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-2113.

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<p>Kompaktaggregat är ett integrerat FTX- och FVP-system som används i passivhus. Vi har gjort</p><p>energiberäkningar i programmet VIP+ för att se hur kompaktaggregatet skulle kunna fungera i</p><p>passivhus i Sverige.</p><p>De resultat vi har fått fram ur VIP+ visar att passivhus med ett installerat kompaktaggregat klarar</p><p>av att nå passivhuskraven ända upp till Skellefteå. De beräknade värdena understiger kraven för</p><p>passivhus, men en viss marginal behövs för att kraven ska nås även efter uppförandet av</p><p>byggnaden. Vi har även tolkat tekniska uppgifter på ett sätt som enligt

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4

Královský, Jaroslav. "Autonomní energetický systém." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417839.

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This diploma thesis deals with available technologies when designing autonomous house. Theoretical part of this thesis shows and presents options for gaining energy from renewable resources and options for energy storage. The practical part of the thesis is focused on designing partly autonomous system for model house using renewable resources. In the thesis are three options of gainig energy for the house, from which is chosen the best option.

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5

Bareš, Josef. "Návrh větrání a chlazení v rodinném domě." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417131.

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The diploma thesis is focused on a ventilation and cooling design of a family house. Author’s idea was to make summary of theoretical information and project documentation for realization (installation) of the ventilation and cooling. Introduction of the house disposition, theoretical research of a current cooling and ventilation options in residential buildings are parts of this thesis. Next it contains thermal load calculation, two designs of a cooling and three designs of a forced ventilation, dimensioning of the pipelines and financial cost comparison of a purchase, assembly, working and s

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Najbrtová, Zuzana. "Dodávka energie pro skleníkovou produkci." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-443195.

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The import of the vegetable has prevailed in the long run over the own production. In connection with this reality and increasing demand for the food with higher quality the production greenhouse is more often built. The providing heat, cold and electricity for the year-round operation is related to the construction and working of these objects. The theoretical part of this theses describes possible ways how to cover energy consumption for the model greenhouse in Kožichovice, Třebíč region. The heat losses and the year-round heat consumption were stated for the selected model and compared with

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7

Bobrovský, Ondřej. "Vzduchotechnika bazénových hal." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2018. http://www.nusl.cz/ntk/nusl-371831.

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Diploma thesis is focused on problematics of ventilation of swimming pool halls. Thesis describes the design of air handling units for swimming pool halls and operation risks. It presents different variants of ventilation with mentioned advantages and disadvantages of individual technical solutions. A swimming pool air handling unit was measured in real conditions as a part of experimental solution. The goal of measuring was to analyze thermal efficiency of cross flow heat exchanger aswell as to monitor working modes and functions of unit. Based on informations gathered during experimental mea

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8

Mantilla, Gutierrez Weimar. "Towards Flexible Power Generation Short-term Optimization of a Combined Cycle Power Plant Integrated with an Inlet Air Conditioning Unit." Thesis, KTH, Energiteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-263904.

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Combined cycle gas turbine power plants (CCGT), as part of the electricity generation fleet, are required to improve their flexibility to help balance the power system under new scenarios with high shares of variable renewable sources. Among the different possibilities to enhance the power plant performance, an inlet air conditioning unit offers the benefit of power augmentation and “minimum environmental load” reduction by controlling the gas turbine intake temperature using cold thermal energy storage and a heat pump. In this thesis, an evaluation of the conditioning unit impact over a power

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9

Снісаренко, Д. О. "Дослідження теплонасосної установки системи опалення на базі рідинно-парового ежектора з робочим середовищем R718". Master's thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/86613.

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У роботі виконано розрахунок теплового навантаження приміщення та визначено величину тепловтрат в залежності від температури навколишнього середовища. Виконано термодинамічний, ексергетичний та термоекономічний розрахунок теплонасосної установки для потреб опалення з робочим середовищем R718 на базі рідинно-парового ежектора в складі вакуумного агрегату та виконано порівняльний аналіз з традиційними теплонасосними установками з робочими середовищами R142b, R245fa та R410a. В результаті цього визначено доцільність впровадження нової установки. У розділі охорони праці виконано аналіз шкідливих т

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10

Fodor, Ján. "Optimalizace vytápění bytového domu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-318830.

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This diploma thesis deals with the supply of heat in a particular block of flats in Brno. It deals with supply for heating and for hot water heating. The introduction gives information about the considerated building and also generally, but especially with regard to the current situation with consumption and heat supply. Subsequently, the thesis describes the individual possibilities of obtaining heat. There are mentioned classical heat sources as gas boilers, but also less commonly used as co-generating units or solar collectors. Furthermore, the work is calculating from the technical and eco

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11

Kotásek, Petr. "Systémy přímého chlazení v potravinářských provozech." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2016. http://www.nusl.cz/ntk/nusl-240239.

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Diploma thesis deals with direct cooling systems in food processing plants. The work focuses on the description of the components of the refrigerant cycle, with emphasis on the choice of refrigerant. The result is a design of direct cooling system in the food factory in the variants with refrigerant R404A and R717. The work describes the advantages and disadvantages of various options. The work includes an experimental section which deals with the measure-ment and processing of the actual values of the refrigerant cycle and the comparison of two cold sources.

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12

Mazálek, Karel. "Tepelné čerpadlo pro ohřev teplé vody." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-378273.

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This Master's thesis deals with reusing waste heat from the kitchen and .cold rooms of a restaurant, as a source of heat for heat pump water heater. The first part is about basic principles and theory which is needed to understand the function of heat pump and possibilities of reusing wasted heat. In the other parts, there are calculations and designs not only of a heat pump, but also coolers and ventilation unit needed for recycling of heat.

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13

Івахно, Г. Г. "Оцінка впливу режимних параметрів первинного контуру теплонасосної установки на її енергоефективність". Master's thesis, Сумський державний університет, 2021. https://essuir.sumdu.edu.ua/handle/123456789/86610.

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У роботі виконано варіантні розрахунки для теплонасосної установки з первинним контуром роздільного та суміщеного виконання в залежності від температури навколишнього середовища. В результаті розрахунків одержано залежності навантаження на випарник, зміну коефіцієнта перетворення холодильного циклу та споживану потужність компресора. У розділі охорони праці виконано аналіз шкідливих та небезпечних факторів при експлуатації теплонасосного обладнання та виконано розрахунок природного та штучного освітлення ділянки цеху, в якому експлуатується дана теплонасосна установка.<br>В работе выполнены ва

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14

Bareika, Paulius. "Vėdinimo įrenginių su integruotais šilumos siurbliais projektavimas, tyrimas ir analizė." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2013. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2013~D_20130620_153425-09930.

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Magistro baigiamajame darbe nagrinėjami vėdinimo įrenginiai su integruotais šilumos siurbliais. Darbe atliekama tokios rūšies įrenginių literatūros apžvalga. Apžvelgiami šilumos siurblio komponentai, darantys didžiausią įtaką jo darbui. Darbo metu atlikti įrenginių projektavimo ir konstravimo darbai. Pateikiamos projektavimo rekomendacijos. Lyginami skirtingi kompresorių galios moduliacijos principai. Nagrinėjami įrenginių darbo režimai, kylančios problemos eksploatacijos metu, ieškomi problemų sprendimų būdai. Pateikiamos kintamo sukimosi greičio kompresorių galių moduliacijos ribos. Atliekam

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15

Cooper, Samuel J. G. "Thermodynamic analysis of air source heat pumps and micro combined heat and power units participating in a distributed energy future." Thesis, University of Bath, 2013. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.577742.

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Achieving the reductions in carbon dioxide emissions which are necessary will require improvements in the way in which domestic space heating is supplied. Air Source Heat Pumps and micro-Combined Heat and Power units both have the potential to reduce emissions while using primary energy resources more efficiently. The performance which these technologies can achieve is fundamental to fulfilling this potential and yet it is still subject to some uncertainty. This thesis analyses the performance of Air Source Heat Pumps and micro-Combined Heat and Power units in terms of their energy and exergy

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16

Očkan, Tomáš. "Vzduchotechnika hotelového komplexu." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226817.

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The first part of the thesis is aimed on creating internal microclimate of the hotel complex by air conditioning systems. The choice of systems is based on theoretical knowledge’s and practical application in abroad. In the second part there is designed solution for hotel apartments and conference hall. The other areas are designed only conceptual. Technical solutions of chosen systems are the main outcome of the thesis. In the third part there are published my experimental measurements from laboratories of Oulu University of Applied Sciences. For the study field of Air Conditioning has been c

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17

Halm, Petr. "Návrh vytápění a vzduchotechniky novostavby s nízkými energetickými náklady." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241667.

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The thesis is aimed on a proposal from heating sources, heating systems and ventilation of family house. Designing of a house is provided by Keeo4design. This proposal contains a complex of two houses. The first one is used for residential purposes, the other is made up of mostly parking garages. The work focuses on heat loss calculation objects. Subsequently, on a proposal from heating sources, heating systems, ventilation systems and their regulation.

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18

Арсеньєв, В`ячеслав Михайлович, Вячеслав Михайлович Арсеньев, Viacheslav Mykhailovych Arseniev та Є. С. Михайленко. "Дослідження ефективності використання діоксиду вуглецю в якості робочої речовини в холодильній установці". Thesis, Сумський державний університет, 2017. http://essuir.sumdu.edu.ua/handle/123456789/62600.

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Одним з перспективних напрямків у сфері заощадження енергоресурсів, як в рамках національної економіки, так і в межах енергоспоживання окремих підприємств а також захисту навколишнього середовища від парникового ефекту є застосування, в холодильній техніці, екологічно чистих холодильних агентів (вуглеводні, діоксид вуглецю та ін. ). Застосуванню діоксиду вуглецю в якості робочої речовини холодильних машин і теплових насосів останнім часом приділяється велика увага в зв'язку з тим, що він абсолютно безпечний, не горючий, не отруйний, дешевий та доступний в будь-яких кількостях.

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19

Fikejsl, Tomáš. "Technická zařízení budov v budovách s téměř nulovou spotřebou." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265497.

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The thesis deals with the issue will be nearly zero energy. The theoretical part is divided into several chapters. Describes the requirements of applicable legislation of the Czech Republic and the EU and the application of renewable energy in these buildings. The third and last part serves as a basis for part of the experiment. Calculation section applies theoretical knowledge into practice. The subject has become a new residential building in which they are designed to ensure the technical equipment required internal environment. The proposal concerns the heating, ventilation, cooling, domes

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20

Jelínek, Roman. "Bytový dům ve Zlíně." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225804.

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The aim of this thesis is to elaborate project documentation for new construction of low-energy residential building with 16 luxury apartments, apartment without barriers and with pharmacy of basic type. It is a four-storey detached building without basement, with flat roof, roof terraces and with balconies. Residential building is located in one of the most enjoyable parts of the city of Zlín – Jižní Svahy II in the vicinity of Central park with bicycle path and with beautiful view of the Zlín. The building will be located on land plot No. 2144/46, where is still situated unfinished building

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21

Sibilla, Luboš. "Horský hotel." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2013. http://www.nusl.cz/ntk/nusl-225780.

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Diploma thesis is focused on design of a new hotel in mountain surrounding with one underground floor and five stories. The hotel has 53rooms for guests from the second to the fifth floor and two rooms for employees of hotel on the fifth floor, what means 106 beds for guests. The hotel is equipped indoor swimming pool 25x10meters, its own kitchen, dining hall, sauna, massages and Conference hall. The object consists of four dilatation units – accommodation sides and common central part and swimming pool. Roof construction is created by huge wooden truss from the second floor to the fifth floor

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22

Volec, Martin. "Malá vrtná souprava pro vrtání studní." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232188.

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The aim of this thesis is the structural design small drilling rigs for drilling wells. Drilling rig will be used for drilling wells up to 200 mm diameter rotary drilling technology with irrigation water. The first part is a literature search of small drilling rigs. In the second part, then custom design a small drilling rig.

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23

Yu, Chong-Kai, and 游崇凯. "Development and Efficiency Analysis of Multi-function Heat Pump Air Conditioning Unit under Different Heating Modes." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/86632r.

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碩士<br>國立勤益科技大學<br>冷凍空調系<br>106<br>In this study, an air-conditioning heat pump system was constructed using R410A refrigerant and an air source and a water source, and a parallel circuit of four heat exchangers was used. This multi-functional compound heat pump air-conditioning unit has integrated air-conditioning mode, heating mode, hot water mode, ice-water mode, simultaneous air-conditioning and hot-water mode, and simultaneous heating and hot water mode. The air-conditioning side matches the optimization parameters with the amount of refrigerant and the degree of superheat, and the water-s

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