Projects per year
Most Finnish residential buildings have been built before ventilation heat recovery options became mandatory. Exhaust air heat pumps are an effective way to reduce emissions, but they cannot cover all heating demand. Ground-source heat pumps can be designed to meet all loads, but they require corresponding amounts of space both above and below ground. This simulation study combines residential ventilation and sewage waste heat with a ground-source heat pump system to improve system sustainability and cost-effectiveness. A hybrid waste heat and ground-source heat pump system was shown to have 20% lower life cycle costs compared to a pure ground-source heat pump system. It also maintained sustainable ground temperature levels over the long term, while reducing above-ground space requirements by 95%.
|Number of pages||7|
|Journal||E3S Web of Conferences|
|Publication status||Published - 29 Mar 2021|
|MoE publication type||A4 Article in a conference publication|
|Event||Cold Climate HVAC Congress - Virtual, Online|
Duration: 20 Apr 2021 → 21 Apr 2021
FingerprintDive into the research topics of 'Seasonal storage of residential exhaust air and sewage waste heat'. Together they form a unique fingerprint.
Optimal transformation pathway towards the 2050 low-carbon target: integrated buildings, grids, and national energy system for the case of Finland
01/09/2017 → 31/08/2021
Project: Academy of Finland: Other research funding
HUKATON: New business and collaboration models for efficient waste heat recovery and heat storage in the built environment
01/08/2018 → 31/12/2020
Project: EU: Structural funds EAKR (incl. Interreg)