Control device for pumping one-pipe hydronic systems

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00362118" target="_blank" >RIV/68407700:21230/22:00362118 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21720/22:00362118
Result on the web
<a href="https://www.rehva.eu/rehva-journal/detail/06-2022" target="_blank" >https://www.rehva.eu/rehva-journal/detail/06-2022</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Control device for pumping one-pipe hydronic systems
Original language description
The article presents the development and algorithms behind an active control device for pumping one-pipe (or primary-secondary pumping) systems. The main feature of such a system is the series connection of thermal loads/sources and a small pump by each load/source, as opposed to classical two-pipe systems with a parallel connection and throttling valves. Our main contribution is an integration of all necessary components into one device and the ability to infer mass flow in a secondary circuit without a flowmeter. By measuring a temperature drop, we can estimate and control heat flow and provide remote thermal and hydraulic diagnostics of a connected heat terminal. It is powered and communicates through the Ethernet and contains a wet-rotor BLDC pump controlled by the field-oriented control method. A Kalman filter provides a mass flow estimate, and a robust distributed parameter system controller regulates the heat flow.
Czech name
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Czech description
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Project
<a href="/en/project/TK01020024" target="_blank" >TK01020024: Hydronics 4.0</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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