Optimization of concurrency of PV-generation and energy demand for a heat pump comparison of a monitored building and simulation data
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Dateien
Autor:innen
Autor:in (Körperschaft)
Publikationsdatum
2015
Typ der Arbeit
Studiengang
Typ
04B - Beitrag Konferenzschrift
Herausgeber:innen
Herausgeber:in (Körperschaft)
Betreuer:in
Übergeordnetes Werk
CISBAT 2015. Future buildings & districts sustainability from nano to urban scale. Proceedings
Themenheft
DOI der Originalpublikation
Link
Reihe / Serie
Reihennummer
Jahrgang / Band
1
Ausgabe / Nummer
Seiten / Dauer
573-578
Patentnummer
Verlag / Herausgebende Institution
Verlagsort / Veranstaltungsort
Lausanne
Auflage
Version
Programmiersprache
Abtretungsempfänger:in
Praxispartner:in/Auftraggeber:in
Zusammenfassung
Monitoring data of a small, well-insulated residential building shows that the electricity consumption of the heat pump amounts to approx. 30% of the total electricity consumption of the building. Shifting duty cycles of the heat pump into the daytime would therefore be a possible means to greatly increase the concurrency of electricity production and consumption
and reduce the grid interaction without an expensiv e technical effort. Experimentally, the duty cycle of the heat pump is limited to daytime from 10 am through 7 pm. The monitored data shows this is sufficient to heat the building and the domestic hot water. Interesting questions that arise are e.g. if such run-time limitations can also be used with a heavy (concrete) and a lightweight (wood) construction and if further reduction of the run-time is possible. Reducing run-time even more would further increase self-consumption and reduce grid interaction. The impact of the thermal mass of the construction and the limiting of the run-time are investigated by transient thermal building simulation. The simulation model with constructions “as built” is calibrated based on measurement values from temperature sensors in the living rooms and the measured heating demand of all three apartments. Simulation results are evaluated based on thermal comfort criteria in the living rooms of each apartment.
The results obtained show that for the construction types “as built” and “heavyweight” no differences in resulting thermal comfort are to be expected. Construction types “ as built” and “heavyweight” show good robustness in regard to the limitation of the run-time of the heat pump. The construction type “lightweight” cannot be used with limited run-times of the heat pump without a significant drop in thermal comfort as defined by the metrics used. The paper gives detailed results for the mentioned construction types and 4 different run-time scenarios.
Schlagwörter
buidlung sumulation, self-consumption, heat pump, thermal mass
Fachgebiet (DDC)
Veranstaltung
CISBAT 2015
Startdatum der Ausstellung
Enddatum der Ausstellung
Startdatum der Konferenz
09.09.2015
Enddatum der Konferenz
11.09.2015
Datum der letzten Prüfung
ISBN
978-2-9701052-0-6
ISSN
Sprache
Deutsch
Während FHNW Zugehörigkeit erstellt
Ja
Zukunftsfelder FHNW
Publikationsstatus
Veröffentlicht
Begutachtung
Fachlektorat/Editorial Review
Open Access-Status
Lizenz
Zitation
HALL, Monika und Achim GEISSLER, 2015. Optimization of concurrency of PV-generation and energy demand for a heat pump comparison of a monitored building and simulation data. In: CISBAT 2015. Future buildings & districts sustainability from nano to urban scale. Proceedings. Lausanne. 2015. S. 573–578. ISBN 978-2-9701052-0-6. Verfügbar unter: https://doi.org/10.26041/fhnw-146