en
Scientific article
Open access
English

Hourly CO2 emission assessment of a 5 MWth centralized groundwater HP district heating system in Geneva

Published inJournal of Physics: Conference Series, vol. 1343, 012076
Publication date2019
Abstract

In the present paper, we develop an hourly simulation model for determination of the relevant system load curves of a new district of 30 high performance multi-family buildings (163'00 m2 heated floor area) situated in Geneva, which is equipped with a 5 MWth groundwater HP. As a complement, at building level, heat recovery on exhaust air is used for pre-heating of DHW by way of decentralized air-to-water HPs. As a result of our model, the 10.7 GWh annual heat production (65% for SH, 35% for DHW) should require 1.93 GWh HP electricity (85% centralized, 15% decentralized). When crossing the corresponding profile with a recent analysis of the hourly CO2 content of the Swiss electricity mix, the annual carbon content of heat amounts to 47 gCO2/kWhth., which is 4 times less than with a centralized gas boiler.

Keywords
  • Renewable energy
  • CO2 emissions
  • Geothermal HP
  • District heating
Citation (ISO format)
SCHNEIDER, Stefan et al. Hourly CO<sub>2</sub> emission assessment of a 5 MWth centralized groundwater HP district heating system in Geneva. In: Journal of Physics: Conference Series, 2019, vol. 1343, p. 012076. doi: 10.1088/1742-6596/1343/1/012076
Main files (1)
Article (Accepted version)
accessLevelPublic
Identifiers
ISSN of the journal1742-6588
341views
130downloads

Technical informations

Creation12/02/2019 9:35:00 AM
First validation12/02/2019 9:35:00 AM
Update time03/15/2023 6:29:08 PM
Status update03/15/2023 6:29:07 PM
Last indexation05/05/2024 4:00:25 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack