- document
-
Cavalli, A. (author), Chundru, P. (author), Brunner, Thomas (author), Obernberger, Ingwald (author), Mirabelli, Ilaria (author), Makkus, Robert (author), Aravind, P.V. (author)High temperature biosyngas cleaning is more efficient when the end user operates at elevated temperature, as in biomass gasifier solid oxide fuel cell systems. However, there is not much experience with this technology and low temperature gas cleaning is usually adopted. This paper advances current knowledge by presenting the results from the...journal article 2021
- document
-
Vijay, V. (author), Shreedhar, S. (author), Adlak, Komalkant (author), Payyanad, Sachin (author), Sreedharan, Vandana (author), Gopi, Girigan (author), Sophia van der Voort, Tessa (author), Malarvizhi, P. (author), Buisma-Yi, S.C. (author), Gebert, J. (author), Aravind, P.V. (author)Increasing pressure on farming systems due to rapid urbanization and population growth has severely affected soil health and fertility. The need to meet the growing food demands has also led to unsustainable farming practices with the intensive application of chemical fertilizers and pesticides, resulting in significant greenhouse gas...review 2021
- document
-
Wasajja, H. (author), Saadabadi, S.A. (author), Illathukandy, Biju (author), Lindeboom, R.E.F. (author), van Lier, J.B. (author), Aravind, P.V. (author)Internal dry reforming of methane is envisaged as a possibility to reduce on capital and operation costs of biogas fuelled solid oxide fuel cells (SOFCs) system by using the CO<sub>2</sub> present in the biogas. Due to envisaged internal dry reforming, the requirement for biogas upgrading becomes obsolete, thereby simplifying the system...journal article 2021
- document
-
Cavalli, A. (author), Monteiro Fernandes, A.B. (author), Aravind, P.V. (author)Limited overall efficiency and excessive complexity can hinder the competitiveness of biomass gasifier solid oxide fuel cell micro combined heat and power systems. To overcome these problems, hydrocarbons direct internal reforming is analysed as a strategy to increase efficiency and reduce system complexity. To the same end, two biosyngas...journal article 2021
- document
-
Wasajja, H. (author), Al-Muraisy, S.A.A. (author), Piaggio, A.L. (author), Ceron Chafla, P.S. (author), Aravind, P.V. (author), Spanjers, H. (author), van Lier, J.B. (author), Lindeboom, R.E.F. (author)Small-scale electrical power generation (<100 kW) from biogas plants to provide off-grid electricity is of growing interest. Currently, gas engines are used to meet this demand. Alternatively, more efficient small-scale solid oxide fuel cells (SOFCs) can be used to enhance electricity generation from small-scale biogas plants. Most...journal article 2021
- document
-
Cavalli, A. (author), Aravind, P.V. (author)Contaminants as particulate matter, sulfur, chlorine and tar should be removed from biosyngas to avoid damaging solid oxide fuel cells. However, there is no sufficient information on tar effect since they might be potentially used as a fuel, or they might cause performance losses and irreversible damages. Therefore, this study aims to assess...journal article 2021
- document
-
Cavalli, A. (author), Tetteroo, R. (author), Graziadio, M. (author), Aravind, P.V. (author)Tar compounds have been defined as Achilles’ heel in biomass gasification. Catalytic reforming solves problems caused by tar by converting them into H<sub>2</sub> and CO. Most of the research has focused on secondary and tertiary tar reforming while some information on primary tar can be derived from bio-oil reforming. However, these studies...journal article 2021
- document
-
Saadabadi, S.A. (author), Illathukandy, Biju (author), Aravind, P.V. (author)Internal dry reforming (IDR) of methane for biogas-fed solid oxide fuel cell (SOFC) applications has been experimentally investigated on planar Ni-GDC (cermet anode) electrolyte-supported cells. This study focuses on the effect of CO<sub>2</sub> concentration, current density, operating temperature, and residence time on internal methane dry...journal article 2021
- document
-
van Biert, L. (author), Visser, K. (author), Aravind, P.V. (author)Various concepts have been proposed to use hydrocarbon fuels in solid oxide fuel cell (SOFC) systems. A combination of either allothermal or adiabatic pre-reforming and water recirculation (WR) or anode off-gas recirculation (AOGR) is commonly used to convert the fuel into a hydrogen rich mixture before it is electrochemically oxidised in the...journal article 2020
- document
-
Wasajja, H. (author), Lindeboom, R.E.F. (author), van Lier, J.B. (author), Aravind, P.V. (author)Biogas is known as a traditional energy source for off-grid population throughout the world. And currently small-scale solid oxide fuel cell (SOFC) systems are being promoted for off-grid energy supply. Also, electricity demand is increasing at a high rate due to the ever-increasing population and technological revolution. Therefore,...review 2020
- document
-
Saadabadi, S.A. (author), Patel, H.C. (author), Woudstra, T. (author), Aravind, P.V. (author)Energy and exergy performance of ammonia fuelled solid oxide fuel cell (SOFC) integrated system in wastewater treatment plants (WWTPs) is evaluated in this study. Ammonia can be recovered through a struvite precipitation process in the form of an ammonia-water mixture (with 14 mol.% ammonia) and used as a carbon-free fuel. A series of...journal article 2020
- document
-
Giannoulidis, S. (author), Venkataraman, V. (author), Woudstra, T. (author), Aravind, P.V. (author)Hydrogen is yet to be widely accepted as a fuel for everyday operation due to stringent safety regulations involved around it. In the meanwhile, methanol could be a potential fuel of the future. In this work, an extensive thermodynamic investigation on an energy storage system with a reversible solid oxide stack at its core is presented. The...journal article 2020
- document
-
van Biert, L. (author), Godjevac, M. (author), Visser, K. (author), Aravind, P.V. (author)Direct internal reforming enables optimal heat integration and reduced complexity in solid oxide fuel cell (SOFC)systems, but thermal stresses induced by the increased temperature gradients may inflict damage to the stack. Therefore, the development of adequate control strategies requires models that can accurately predict the temperature...journal article 2019
- document
-
Saadabadi, S.A. (author), Thallam Thattai, A. (author), Fan, L. (author), Lindeboom, R.E.F. (author), Spanjers, H. (author), Aravind, P.V. (author)Anaerobic Digestion (AD) is used worldwide for treating organic waste and wastewater. Biogas produced can be converted using conventional energy conversion devices to provide energy efficient, integrated waste solutions. Typically, the electrical conversion-efficiency of these devices is 30–40% and is lowered due to biogas utilization instead...review 2019
- document
-
Botta, G. (author), Romeo, M. (author), Monteiro Fernandes, A.B. (author), Trabucchi, S. (author), Aravind, P.V. (author)Solid oxide cell systems (SOCs) are increasingly being considered for electrical energy storage and as a means to boost the use of renewable energy and improve the grid flexibility by power-to-gas electrochemical conversion. The control of several variables (e.g., local temperature gradients and reactant utilization) is crucial when the...journal article 2019
- document
-
Chen, B. (author), Hajimolana, S. (author), Venkataraman, V. (author), Ni, Meng (author), Aravind, P.V. (author)The power to gas process concept is promising for the next generation of grid electricity storage and stabilization technologies. The electricity-driven fuel production can be chosen to be the efficient energy carrier for excessive grid power. Here, a reversible solid oxide cells system integrated with methane synthesis (ReSOC-MS) is proposed...journal article 2019
- document
-
Cavalli, A. (author), Bernardini, Roberta (author), Del Carlo, Tommaso (author), Aravind, P.V. (author)Integrated biomass gasifier solid oxide fuel cell systems are an alternative to fossil-fuel-based combined heat and power generators. However, biosyngas contaminants represent a bottleneck for small-scale systems. In this work, we present the results of experiments on the effects of H<sub>2</sub>S, HCl, and acetic acid as model primary tar on...journal article 2019
- document
-
van Biert, L. (author), Visser, K. (author), Aravind, P.V. (author)Direct internal reforming in solid oxide fuel cells (SOFCs) is advantageous as it enables to heat and steam from the exothermic hydrogen oxidation reaction in the endothermic steam reforming reaction. However, it may increase potentially deteriorating temperature gradients as well. The temperature and concentration profiles can be accurately...journal article 2019
- document
-
Cavalli, A. (author), Aravind, P.V. (author)Removing biosyngas contaminants is crucial for the efficient and safe operation of biomass gasifier solid oxide fuel cells systems. Among the contaminants, tar might be considered an additional fuel if converted into H<sub>2</sub> and CO in a reformer or directly in the SOFC. However, no sufficient information is available on direct internal...journal article 2019
- document
-
Recalde Moreno Del Rocio, M.D.R. (author), Woudstra, T. (author), Aravind, P.V. (author)Nowadays, there is worldwide interest in diversifying energy supply. In this regard, biomass is the best possible renewable organic substitute for fossil fuels. In particular, the energy content of very wet biomass, recovered with appropriate technology, could potentially be used for power generation. In addition to power generation, this...journal article 2019