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Techno-economic study of a heat pump enhanced flue gas heat recovery for biomass boilers
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Energivetenskap.
Bioenergy 2020+ GmbH.
Bioenergy 2020+ GmbH.
Bioenergy 2020+ GmbH.
Vise andre og tillknytning
2014 (engelsk)Inngår i: Biomass and Bioenergy, ISSN 0961-9534, E-ISSN 1873-2909, Vol. 71, s. 12-22Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

An active condensation system for the heat recovery of biomass boilers is evaluated. The active condensation system utilizes the flue gas enthalpy exiting the boiler by combining a quench and a compression heat pump. The system is modelled by mass and energy balances. This study evaluates the operating costs, primary energy efficiency and greenhouse gas emissions on an Austrian data basis for four test cases. Two pellet boilers (10 kW and 100 kW) and two wood chip boilers (100 kW and 10 MW) are considered. The economic analysis shows a decrease in operating costs between 2% and 13%. Meanwhile the primary energy efficiency is increased by 3–21%. The greenhouse gas emissions in CO2 equivalents are calculated to 15.3–27.9 kg MWh−1 based on an Austrian electricity mix. The payback time is evaluated on a net present value (NPV) method, showing a payback time of 2–12 years for the 10 MW wood chip test case.

sted, utgiver, år, opplag, sider
2014. Vol. 71, s. 12-22
HSV kategori
Forskningsprogram
Energiteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-7370DOI: 10.1016/j.biombioe.2014.01.048ISI: 000345349500002Scopus ID: 2-s2.0-84911913561Lokal ID: 5bed4c8c-15b4-443b-9bf1-5f1be2f7379cOAI: oai:DiVA.org:ltu-7370DiVA, id: diva2:980259
Merknad
Validerad; 2014; 20140304 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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