Next Article in Journal
Single Column Model Simulations of Icing Conditions in Northern Sweden: Sensitivity to Surface Model Land Use Representation
Previous Article in Journal
Thermophilic Co-Fermentation of Wood Wastes and High in Nitrogen Animal Manures into Bio-Methane with the Aid of Fungi and its Potential in the USA
Article

Innovative Hydrodynamic Disintegrator Adjusted to Agricultural Substrates Pre-treatment Aimed at Methane Production Intensification—CFD Modelling and Batch Tests

1
Faculty of Building Services, Hydro and Environmental Engineering, Warsaw University of Technology, 00-653 Warsaw, Poland
2
Faculty of Power and Aeronautical Engineering, Warsaw University of Technology, 00-655 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Energies 2020, 13(16), 4256; https://doi.org/10.3390/en13164256
Received: 8 July 2020 / Revised: 31 July 2020 / Accepted: 14 August 2020 / Published: 17 August 2020
(This article belongs to the Section Sustainable Energy)
The study objective was to adjust the hydrodynamic disintegrator dedicated to sewage sludge pre-treatment (HDS) to work with agricultural substrate. This involved the development and implementation of a mathematical model of flow via the device’s domain. An innovative disintegrator (HAD—hydrodynamic disintegrator for agriculture) was designed, built, and tested based on the obtained results. The main improvements to the HDS include the implementation of shredding knives in order to overcome clogging by crushed substrate, and the application of ribs in the recirculation zone, contributing to the development of an additional structure damage zone. The challenge of this study was also to determine the operating parameters of the HDA that would provide for an increase in methane production with positive energy balance. The testing procedures, for which maize silage was selected, involved batch disintegration tests and biochemical methane potential tests. No clogging of rotor or spontaneous shutting off of the device, in other words, problems that had occurred in the HDS, were observed. The applied pre-treatment method permitted an increase in the methane potential of maize silage by 34.4%, 27.0%, and 21.6%, respectively for samples disintegrated at energy densities of 10 kJ/L, 20 kJ/L, and 35 kJ/L with net energy profit. View Full-Text
Keywords: agricultural substrates; hydrodynamic disintegration; computational fluid dynamic; mathematical modelling; immersed solid method; cavitation; specific methane production; energy balance agricultural substrates; hydrodynamic disintegration; computational fluid dynamic; mathematical modelling; immersed solid method; cavitation; specific methane production; energy balance
Show Figures

Graphical abstract

MDPI and ACS Style

Zubrowska-Sudol, M.; Dzido, A.; Garlicka, A.; Krawczyk, P.; Stępień, M.; Umiejewska, K.; Walczak, J.; Wołowicz, M.; Sytek-Szmeichel, K. Innovative Hydrodynamic Disintegrator Adjusted to Agricultural Substrates Pre-treatment Aimed at Methane Production Intensification—CFD Modelling and Batch Tests. Energies 2020, 13, 4256. https://doi.org/10.3390/en13164256

AMA Style

Zubrowska-Sudol M, Dzido A, Garlicka A, Krawczyk P, Stępień M, Umiejewska K, Walczak J, Wołowicz M, Sytek-Szmeichel K. Innovative Hydrodynamic Disintegrator Adjusted to Agricultural Substrates Pre-treatment Aimed at Methane Production Intensification—CFD Modelling and Batch Tests. Energies. 2020; 13(16):4256. https://doi.org/10.3390/en13164256

Chicago/Turabian Style

Zubrowska-Sudol, Monika, Aleksandra Dzido, Agnieszka Garlicka, Piotr Krawczyk, Michał Stępień, Katarzyna Umiejewska, Justyna Walczak, Marcin Wołowicz, and Katarzyna Sytek-Szmeichel. 2020. "Innovative Hydrodynamic Disintegrator Adjusted to Agricultural Substrates Pre-treatment Aimed at Methane Production Intensification—CFD Modelling and Batch Tests" Energies 13, no. 16: 4256. https://doi.org/10.3390/en13164256

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop