Searched for: subject%3A%22energy%255C+conversion%22
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Langer, J.K.A. (author)
Indonesia has been dependent on its abundant coal reserves to meet its increasing electricity demand. The Indonesian government is aware of the negative environmental effects of coal combustion and pledged to become carbon neutral by 2060 or earlier by transitioning towards renewables. In principle, it is known that Indonesia has large renewable...
doctoral thesis 2024
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Zhang, F. (author), Miao, Xuefei (author), van Dijk, N.H. (author), Brück, E.H. (author), Ren, Yang (author)
Solid-state caloric effects as intrinsic thermal responses to different physical external stimuli (magnetic-, uniaxial stress-, pressure-, and electric-fields) can achieve a higher energy efficiency compared with traditional gas compression techniques. Among these effects, magnetocaloric energy conversion is regarded as the best available...
review 2024
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Kluwer, Thomas (author)
Global warming has caused an increasing demand for renewable energy. Currently, 50% of the renewable energy is provided by wind and solar combined. However, these renewable energy sources are highly volatile. Wave energy converters can provide a stable renewable energy source. Previous research has contributed to understanding various combined...
master thesis 2023
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Langer, J.K.A. (author), Blok, K. (author)
Ocean Thermal Energy Conversion (OTEC) is an emerging renewable energy technology using the ocean’s heat to produce electricity. Given its early development stage, OTEC’s economics are still uncertain and there is no global assessment of its economic potential, yet. Here, we present the model pyOTEC that designs OTEC plants for best economic...
journal article 2023
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Christakos, Konstantinos (author), Lavidas, G. (author), Gao, Zhen (author), Björkqvist, Jan-Victor (author)
It was recently shown that the Arctic has been warming much faster than the rest of the globe during the last decades. This warming has reduced the ice extent significantly, which will strongly impact the wave climate in the Arctic regions, thus affecting the design of marine structures, operations, and energy resources. This study focuses on...
journal article 2023
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Ziar, H. (author)
Incoming radiation energy illuminating a solar cell contains a certain amount of entropy, which does not contribute to output electrical work. Entropy has a different spectral distribution from the internal energy of light and consequently affects PV cell performance. Here in this work, we investigate the influence of entropy content of...
journal article 2022
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Sui, Congbiao (author)
The shipping industry, which remains the backbone of international merchandise trade, is striving to reduce its operational cost and more importantly its environment impact. New ships need meet the EEDI (Energy Efficiency Design Index) requirements of IMO (International Maritime Organization). However, the current EEDI is not able to accurately...
doctoral thesis 2021
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Tufa, Ramato Ashu (author), Blommaert, M.A. (author), Chanda, Debabrata (author), Li, Qingfeng (author), Vermaas, D.A. (author), Aili, David (author)
Bipolar membranes (BPMs) are recently emerging as a promising material for application in advanced electrochemical energy systems such as (photo)electrochemical CO2 reduction and water splitting. BPMs exhibit a unique property to accelerate water dissociation and ionic separation that allows for maintaining a steady-state pH gradient in...
review 2021
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Kuo, P.C. (author), Illathukandy, Biju (author), Kung, Chi Hsiu (author), Chang, Jo Shu (author), Wu, Wei (author)
Waste-to-energy (WTE) conversion technologies for generating renewable energy and solving the environmental problems have an important role in the development of sustainable circular economy. This paper presents a novel high-efficiency WTE power plant using refuse-derived fuel (RDF) as feedstock by integrating torrefaction (T) pretreatment...
journal article 2021
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Martens, Roland (author)
Ocean Thermal Energy Conversion (OTEC) has been heavily researched and developed over the last decade. However, no commercial scale for OTEC has been reached yet. OTEC is a clean and renewable source of energy which utilizes the seawater temperature difference between the upper and deep ocean layers to generate electricity. The heat exchangers...
master thesis 2020
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Bae, D. (author), Faasse, Richard (author), Smith, W.A. (author)
Achieving high current densities without thermal performance degradation at high temperatures is one of the main challenges for enhancing the competitiveness of photo-electrochemical energy storage systems. We describe a system that overcomes this challenge by incorporating an integrated photoelectrode with a redox flow cell, which functions...
journal article 2020
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Langer, J.K.A. (author), Quist, J.N. (author), Blok, K. (author)
Ocean thermal energy conversion (OTEC) is a Renewable Energy Technology (RET) with a global theoretical potential of up to 30 TW. However, OTEC's economic potential is unknown as it is still an immature technology with no commercial plant operating. This paper reviews recent academic and industrial literature since 2005 to provide an overview...
review 2020
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Zhang, Yan (author), Hopkins, Margaret A. (author), Liptrot, David J. (author), Khanbareh, Hamideh (author), Groen, W.A. (author), Zhou, Xuefan (author), Zhang, Dou (author), Bao, Yinxiang (author), Zhou, Kechao (author), Bowen, Chris R. (author), Carbery, David R. (author)
We demonstrate that trimethylamine borane can exhibit desirable piezoelectric and pyroelectric properties. The material was shown to be able operate as a flexible film for both thermal sensing, thermal energy conversion and mechanical sensing with high open circuit voltages (&gt;10 V). A piezoelectric coefficient of d<sub>33</sub>≈10–16 pC N...
journal article 2020
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Lyu, T. (author), Dorenbos, P. (author)
Guided by vacuum referred binding energy (VRBE) diagrams, both the trapping and detrapping processes of electrons and holes are explored in the bismuth and lanthanide-doped LiRE(Si,Ge)O<sub>4</sub> (RE = Y, Lu) family of compounds. The Tm<sup>3+</sup> electron trap has been combined with the deep hole traps of Ln<sup>3+</sup> (Ln = Ce, Tb, or...
journal article 2020
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Moghadasi, Hesam (author), Malekian, Navid (author), Saffari, Hamid (author), Mirza Gheytaghi, Amir (author), Zhang, Kouchi (author)
Pool boiling is an effective heat transfer process in a wide range of applications related to energy conversion, including power generation, solar collectors, cooling systems, refrigeration and air conditioning. By considering the broad range of applications, any improvement in higher heat-removal yield can ameliorate the ultimate heat usage...
review 2020
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van der Roest, E. (author), Snip, Laura (author), Fens, T.W. (author), van Wijk, A.J.M. (author)
In the transition from fossil to renewable energy, the energy system should become clean, while remaining reliable and affordable. Because of the intermittent nature of both renewable energy production and energy demand, an integrated system approach is required that includes energy conversion and storage. We propose a concept for a...
journal article 2020
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Morrison, A.R.T. (author), van Beusekom, Vincent (author), Ramdin, M. (author), van den Broeke, L.J.P. (author), Vlugt, T.J.H. (author), de Jong, W. (author)
In this work a model of an elevated pressure CO<sub>2</sub> electrolyzer producing primarily formate or formic acid is presented. It consists of three parts: A model of the bulk electrolyte, the diffusion layer, and the electrode surface. Data from the literature was used to validate both the bulk portion of the model, as well as the overall...
journal article 2019
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Bae, D. (author), Seger, Brian (author), Hansen, Ole (author), Vesborg, Peter C.K. (author), Chorkendorff, Ib (author)
This work investigates long-term photoelectrochemical hydrogen evolution (82 days) in 1 M HClO4 using a TiO2:H protected crystalline Si-based photocathode with metal-oxide-semiconductor (MOS) junctions. It is shown that day/night cycling leads to relatively rapid performance degradation while the photocurrent under the continuous light condition...
journal article 2019
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Salz, Kevin (author)
Ocean Thermal Energy Conversion (OTEC) technology development is currently in the gap between academia and commercialization. To bridge this gap, all stakeholders that influence the development must perform optimally. This thesis presents the performance of OTEC developing stakeholder groups (‘clusters’) in Japan, the Netherlands, France, USA...
master thesis 2018
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Terlouw, Maarten (author)
Ocean Thermal Energy Conversion (OTEC) is a technique to generate electricity by using the thermal gradient available in the ocean to drive a heat engine. In order for OTEC to become successful it is important to reduce the levelized cost of electricity. The development of an effective control system can aid in this endeavour, by making sure...
master thesis 2018
Searched for: subject%3A%22energy%255C+conversion%22
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