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Mechanism Study of Waste Heat Recovery from Slurry by Surface Scraped Heat Exchanger
State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing.
State Key Laboratory of Material-Oriented Chemical Engineering, Nanjing Tech University, Nanjing.ORCID-id: 0000-0002-0453-0450
Key Laboratory of Material and Chemical Engineering, Nanjing Tech University, Nanjing .
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2017 (Engelska)Ingår i: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 105, s. 1109-1115Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Waste-heat recovery from discharged slurries can improve the net raw biogas production in bio-methane process in order to meet the demand of a new generation of anaerobic digestion. In order to achieve a high efficient waste-heat recovery, in this work, a mathematical model of waste-heat recovery process with surface scraped heat exchanger (SSHE) was proposed with the consideration of the shear rate and temperature-dependent rheological behaviour. The convective heat transfer performance of SSHE was calculated numerically where slurry was considered. The contribution of waste heat recovery from the slurry to biogas production by SSHE and general shell-and-tube heat exchanger (STHE) were firstly calculated quantitatively, and the increase of net raw biogas production could be over 13.5% by SSHE with need of heat exchange area less than a quarter of STHE's, which showed a great potential to increase the net raw biogas production in bio-methane process with low equipment investments and more compactible structure.

Ort, förlag, år, upplaga, sidor
Elsevier, 2017. Vol. 105, s. 1109-1115
Nationell ämneskategori
Energiteknik
Forskningsämne
Energiteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-63736DOI: 10.1016/j.egypro.2017.03.474ISI: 000404967901031Scopus ID: 2-s2.0-85020734533OAI: oai:DiVA.org:ltu-63736DiVA, id: diva2:1105789
Konferens
8th International Conference on Applied Energy, ICAE2016, Beijing, China, 8-11 October 2016
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2017-06-05 (andbra);Konferensartikel i tidskrift

Tillgänglig från: 2017-06-05 Skapad: 2017-06-05 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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Chen, JingjingMa, ChunyanJi, Xiaoyan

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