Contributions to system integration of PV and PVT collectors with heat pumps in buildings

A common approach to improve self-consumption of photovoltaic (PV) generation in buildings with heat pumps (HP) is to overload the thermal storage capacities during times with surplus PV generation (hereinafter referred to as thermal overloading). The impact of battery capacity and domestic hot water (DHW) consumption on the effectiveness of this method in a single-family home (SFH) is evaluated through numerical simulations. Increased battery capacity is shown to decrease the effectiveness of thermal overloading. Regarding DHW consumption, temporal concentration is shown to have a stronger influence on the effectiveness of thermal overloading than total energy. Furthermore, the potential of photovoltaic-thermal collectors (PVT) as heat exchangers for air/brine/water heat pumps (ABWHP) is estimated. The results show that the properties of PVT collectors with high thermal conductivity are in the feasible range for application in a well-insulated SFH in Central European climate.

Keywords

Self-consumption, Photovoltaic generation, Thermal overloading, Battery capacity, Domestic hot water consumption, Heat pumps, Numerical simulations

Subject (DDC)

600 - Technik, Medizin, angewandte Wissenschaften

Project

Event

CLIMA 2019 Congress

Exhibition start date

Exhibition end date

Conference start date

26.05.2019

Conference end date

29.05.2019

Date of the last check

ISBN

ISSN

Language

English

Created during FHNW affiliation

Yes

Strategic action fields FHNW

Publication status

Published

Review

Peer review of the complete publication

Open access category

Diamond

License

Citation

KOCH, Manuel und Ralf DOTT, 2019. Contributions to system integration of PV and PVT collectors with heat pumps in buildings. In: Shin-ichi TANABE, H. ZHANG, Jarek KURNITSKI, Manuel GAMEIRO DA SILVA, Ilinca NASTASE, Pawel WARGOCKI, Guangyu CAO, Livio MAZZARELA und Christian INARD (Hrsg.), E3S Web of Conferences. Bucharest. 2019. S. 01061. Verfügbar unter: https://doi.org/10.26041/fhnw-9701

Full item page