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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

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

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • 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

  • e-ISSN

  • Number of pages

    13

  • Pages from-to

  • 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