Searched for: department%3A%22Process%255C%2Band%255C%2BEnergy%22
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Opolot, Michael (author), Zhao, Chunrong (author), Keane, Partrick F. (author), Liu, Ming (author), Mancin, Simone (author), Bruno, Frank (author), Hooman, K. (author)
Thermal energy storage is increasingly needed in a sustainable world because of its potential of capturing waste heat and being incorporated in solar power plants. For power generation, in particular, as turbine technology advances, a demand for higher temperature thermal energy storage materials also grows. For this purpose, latent thermal...
journal article 2023
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Yang, Yueming (author), Wang, Xurong (author), Hooman, K. (author), Han, Kuihua (author), Xu, Jinliang (author), He, Suoying (author), Qi, Jianhui (author)
Recently, the supercritical carbon dioxide (SCO<sub>2</sub>) power cycle has become a hotspot in the field of energy-efficient utilization. The utilization of additives in the power cycle has been proven to be an effective way to improve the SCO<sub>2</sub> power cycle efficiency. As one of the core components of the system, the influence of...
journal article 2023
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Xiao, Tian (author), Zhang, Qiaoling (author), Yang, Xiaohu (author), Hooman, K. (author), Li, Guodong (author)
It is indicated that the solder joint of the metal fibrous materials is a critical factor impacting the heat conduction. To reveal the mechanism by which solder joint sizes, solder joint skips, solder flux materials, and filling media affect the thermal conductivity of fibres, pore-scale numerical simulation is employed to study the thermal...
journal article 2023
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van Meerkerk, M. (author), Poelma, C. (author), Hofland, B. (author), Westerweel, J. (author)
We present an experimental study on the gas flow field development over a plunging breaking wave prior to impact on a vertical wall. The variability of wave impact pressure over repeated measurements is well known (Bagnold, 1939). The formation of instabilities on the wave crest are postulated to be the main source of impact pressure variability...
journal article 2022
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Shin, Donghoon (author), Francis, Akhil (author), Aravind, P.V. (author), Woudstra, T. (author), de Jong, W. (author), Roekaerts, D.J.E.M. (author)
A theoretical evaluation of the biochar production process using a biomass gasifier has been carried out herein. Being distinguished from the previous research trend examining the use of a biomass gasifier, which has been focused on energy efficiency, the present study tries to figure out the effect of biochar production rate on the overall...
journal article 2022
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Morrison, A.R.T. (author), Ramdin, M. (author), van den Broeke, L.J.P. (author), de Jong, W. (author), Vlugt, T.J.H. (author), Kortlever, R. (author)
The electrochemical CO2 reduction reaction (CO2RR) is important for a sustainable future. Key insights into the reaction pathways have been obtained by density functional theory (DFT) analysis, but so far, DFT has been unable to give an overall understanding of selectivity trends without important caveats. We show that an unconsidered...
journal article 2022
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Kuo, P.C. (author), Illathu Kandy, B. (author), Özdemir, F. (author), Woudstra, T. (author), Aravind, P.V. (author)
Biochar derived from pyrolysis or gasification has been gaining significant attention in the recent years due to its potential wide applications for the development of negative emissions technologies. A new concept was developed for biochar and power co-generation system using a combination of biomass pyrolysis (BP) unit, solid oxide fuel cells ...
journal article 2022
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Wang, Jianyong (author), Yang, Jun (author), Gong, Jishuang (author), Zhao, Chunrong (author), Hooman, K. (author)
Supercritical flow through a horizontal pipe leads to a non-uniform peripheral wall temperature distribution even when the wall heat flux is kept constant and uniform. This is attributed to lower heat transfer coefficient at the top section where the denser fluid tends to sink. Hence, to obtain a uniform wall temperature, a designed wall...
journal article 2022
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Agarwal, Umang (author), Rigutto, Marcello S. (author), Zuidema, Erik (author), Jansen, A. P.J. (author), Poursaeidesfahani, A. (author), Sharma, S. (author), Dubbeldam, David (author), Vlugt, T.J.H. (author)
A reactor model that deconvolutes thermodynamics of adsorption of hydrocarbon in the pores of zeolite Beta, obtained by Configurational-bias Monte Carlo simulations, from intrinsic, intraporous kinetics of hydroisomerization and hydrocracking reactions, provides a good quantitative description of all significant reactions in the kinetic...
journal article 2022
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Zhang, Lianying (author), Zhang, Qingzeng (author), Yang, Xiaohu (author), Hooman, K. (author)
Insulation performance and buried depth of heating pipelines are the vital factors affecting the energy loss of directly buried heating pipelines. This study considers the thermo-economic assessment of insulation of directly buried heating pipelines for district heating. The optimal insulation thickness, energy-saving effect, and payback...
journal article 2022
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Dash, A. (author), Poelma, C. (author)
We revisit the laminar–turbulent transition of a fine-grained slurry in a large pipe. The combination of long measurement times in an industrial-scale facility and ultrasound imaging allows us to observe and address anomalous trends. Under turbulent conditions, the flow is homogeneous and steady. However, under laminar conditions, two types of...
journal article 2022
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Calati, Michele (author), Hooman, K. (author), Mancin, Simone (author)
Foodstuff has to be transported from where it is produced or packaged to the market. It is important to control the temperature and humidity of the delivered food to minimize the waste and ensure customer satisfaction. At the same time, unfortunately, the transport sector is among the polluting sectors. Therefore, innovative solutions have...
journal article 2022
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Habibi, P. (author), Rahbari, A. (author), Blazquez, Samuel (author), Vega, Carlos (author), Dey, P. (author), Vlugt, T.J.H. (author), Moultos, O. (author)
The thermophysical properties of aqueous electrolyte solutions are of interest for applications such as water electrolyzers and fuel cells. Molecular dynamics (MD) and continuous fractional component Monte Carlo (CFCMC) simulations are used to calculate densities, transport properties (i.e., self-diffusivities and dynamic viscosities), and...
journal article 2022
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Foroozesh, Jamal (author), Hosseini, S. H. (author), Ahmadian Hosseini, A. J. (author), Parvaz, F. (author), Elsayed, K. (author), Uygur Babaoğlu, Nihan (author), Hooman, K. (author), Ahmadi, G. (author)
The rising energy demand for buildings has enhanced public awareness of sustainable energy sources and technologies. In particular, natural ventilation systems such as wind-catchers have attracted considerable new attention. A new wind-catcher design with single-stage direct-air evaporative cooling was proposed for indoor air conditioning. An...
journal article 2022
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Nedumaran, Muthamil Selvan (author), Nagarajan, Gnanasekaran (author), Hooman, K. (author)
Phase change materials (PCM) RT-28HC, RT-35HC, and RT-44HC with three different melting temperatures, 29 °C, 36 °C, and 44 °C, with similar thermal properties, are considered. The PCM is oriented from the left to right side of the heat sink in its increasing order. The fins are attached to the heat sink longitudinally, and its orientation...
journal article 2022
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Recalde Moreno Del Rocio, M.D.R. (author), Amladi, Amogh (author), Venkataraman, Vikrant (author), Woudstra, T. (author), Aravind, P.V. (author)
The low cost of electricity in some areas facilitates the adoption of high-temperature electrolysis plants for the large-scale storage of electricity. Supercritical water gasification (SCWG) is a promising method of syngas production from wet biomass. Additionally, it is a potential source of steam for electrochemical plants. However, the...
journal article 2022
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Nikolaidou, L. (author), Laskari, A. (author), Poelma, C. (author), van Terwisga, T.J.C. (author)
An air layer within a liquid turbulent boundary layer (TBL) is formed by controlled air injection underneath a flat plate. The incoming boundary layer as well as the flow around the air layer were measured with planar particle image velocimetry (PIV). The effect of different incoming liquid flow characteristics on the air layer geometry is...
conference paper 2022
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Hogendoorn, W.J. (author), Frank, David (author), Bruschewski, Martin (author), Poelma, C. (author)
Using magnetic resonance imaging we are able to obtain average velocity and volume fraction profiles in a pipe flow with a neutrally buoyant suspension. In this experimental work, the effect of increasing Reynolds number and particle volume fraction on shear-induced migration is studied. For increasing bulk volume fraction, the initially...
conference paper 2022
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Dash, A. (author), Hogendoorn, W.J. (author), Oldenziel, G. (author), Poelma, C. (author)
Abstract: Ultrasound imaging velocimetry (UIV) refers to the technique wherein ultrasound images are analysed with 2D cross-correlation techniques developed originally in the framework of particle image velocimetry. Applying UIV to opaque, particle-laden multiphase flows have long been considered to be an attractive prospect. In this study,...
journal article 2022
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Safari, Vahid (author), Kamkari, Babak (author), Hooman, K. (author), Khodadadi, J. M. (author)
Widespread commercialization of PCM-based latent heat storage systems is limited by the low melting and solidification rates during the phase transition process. In this study, fins are used to enhance the phase change process. A parametric study is conducted to understand the effect of fins on the thermal performance of vertically- and...
journal article 2022
Searched for: department%3A%22Process%255C%2Band%255C%2BEnergy%22
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