Low-temperature waste heat enabling abandoning coal in Espoo district heating system

Model predictive control for a university heat prosumer with data centre waste heat and thermal energy storage

“…Hiltunen et al evaluated the possibility of utilizing DC waste heat for the DH system in the city of Espoo, Finland to realize the decarbonisation goal in the near future. Simulation results showed that the integration of DC waste heat with the DH system enabled CO2 emissions reduction yet prevented the increase of production costs [14]. Davies et al investigated the potential of utilizing DC waste heat for the DH system in London and calculated the possible savings of waste heat reuse in a DH system.…”

Paving the way for the Paris Agreement: Contributions of SDEWES science

“…Results show that thermal storage installation can reduce costs of about 1.5%, while its integration with demand-side management leads to a cost reduction up to 4% and allows reducing the storage size. The goal of paper by Hiltunen and Syri [154] is to simulate the impacts of replacing heat demand with combined heat and power units with renewable fuels, heat pumps and waste heat utilisation on the production costs and CO2 emissions of the Espoo district heating system. The results show that abandoning coal in the city's heating system leads to a significant reduction of CO2 emissions with a small increase of annual production costs.…”

A Digital Twin Approach to City Block Renovation Using RES Technologies

“…Khosravi et al [14] examined the feasibility of using HPs and heat-only boilers to recover waste heat from a data centre and concluded that HPs are a cost-effective method for doing so. Hiltunen and Syri [15] used HP to enhance the temperature of waste heat and observed that waste heat recovery leads to a significant reduction in GHG emissions. However, the authors also found that the feasibility of waste heat recovery is highly dependent on the price of electricity.…”