Heat Pump for Water Preparation in Block of Flats
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21720%2F17%3A00316376" target="_blank" >RIV/68407700:21720/17:00316376 - isvavai.cz</a>
Result on the web
<a href="http://hpc2017.org/wp-content/uploads/2017/05/O.1.7.3-Heat-pump-for-block-of-flats.pdf" target="_blank" >http://hpc2017.org/wp-content/uploads/2017/05/O.1.7.3-Heat-pump-for-block-of-flats.pdf</a>
DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Heat Pump for Water Preparation in Block of Flats
Original language description
Recent trends in a building construction in the central Europe show a growing number of well insulated residential buildings. The heat demand for a domestic hot water preparation is in those applications similar or higher than for the space heating. Regular vapor-compression heat pumps reach relatively low SPF 2.5 in such applications. The way to increase SPF is to use a heat pump with multiple heat exchangers on a high-pressure side (desuperheater, condenser, and subcooler) and a special hot water storage tank with three internal heat exchangers for a good temperature stratification. A prototype of a heat pump with desuperheater and subcooler was developed and a mathematical model of a refrigerant cycle was tested on it. The model of heat pump describes a heating capacity and a power input with an average relative deviation lower than 5 %. The validated model was used in simulations of a system for hot water preparation in a block of flats. A water draw in the simulation was set under European standard and measured data from real applications. Results of simulations show improvement of SPF by 26 % for a heat pump with desuperheater and subcooler in comparison with a standard heat pump.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
<a href="/en/project/ED2.1.00%2F03.0091" target="_blank" >ED2.1.00/03.0091: University center for energy Efficient buildings (UCEEB)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of 12th IEA Heat Pump Conference
ISBN
978-90-90-30412-0
ISSN
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e-ISSN
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Number of pages
13
Pages from-to
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Publisher name
The IEA Heat Pump Programme
Place of publication
Montreal, Quebec
Event location
Rotterdam
Event date
May 15, 2017
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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