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Evangelos Bellos, Panagiotis Lykas and Christos Tzivanidis
Heat and flow enhancement is a critical weapon for the design of highly efficient, compact, and cost-effective devices. The objective of this analysis is the detailed examination of the implementation of different fin shapes on the internal side of a tub...
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Shisong Wang, Xu Hou, Jianbao Yin, Yuming Xing and Zixian Wang
To access the enhancement effect of the topology optimization and porous foam structure, numerical studies were conducted to investigate the heat conduction enhancement (by metal foam, graphite foam, topologically optimized fins, and combinations of meta...
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Giacomo Cinieri, Zubair Ali Shah, Guido Marseglia and Maria Grazia De Giorgi
The research effort in the microcombustor field has recently increased due to the demand for high-performance systems in microelectromechanical and micro power generation devices. To address rising concerns about pollutants from fossil sources, zero-carb...
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Xiaoyin Li, Fangyang Yuan, Wenma Tian, Chenlong Dai, Xinjun Yang, Dongxiang Wang, Jiyun Du, Wei Yu and Huixin Yuan
This article reviews the heat transfer enhancement of nanofluids with non-spherical nanoparticles. We divided the non-spherical nanoparticles suspended in nanofluids into three categories based on the dimension of geometric particle structure. Based on t...
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Jian Liu, Mengyao Xu, Rongdi Zhang, Xirui Zhang and Wenxiong Xi
With lightweight, multifunctional, and designable characteristics, porous/lattice structures have started to be used in aerospace applications. Porous/lattice structures applied in the thermal management technology of aerospace vehicles have attracted mu...
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Yuseok Ban and Kyungjae Lee
In this study, we propose a multi-scale ensemble learning method for thermal image enhancement in different image scale conditions based on convolutional neural networks. Incorporating the multiple scales of thermal images has been a tricky task so that ...
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Carlo Bartoli, Alessandro Franco and Massimo Macucci
We present an experimental investigation of the effect of ultrasound application to increase the heat-transfer coefficient for natural convection of a dielectric fluid. An experimental analysis is carried out to estimate the increase of the convective he...
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Byung-Lip Ahn, Ji-Woo Park, Seunghwan Yoo, Jonghun Kim, Hakgeun Jeong, Seung-Bok Leigh and Cheol-Yong Jang
We investigated the synergetic effect between light-emitting diode (LED) lighting efficiency and building energy savings in heating and cooling using an alternative thermal operating system (ATOS) of indoor LED lighting integrated with the ventilation sy...
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Jingtao Wu, Zhe Kang and Zhijun Wu
For the requirements of rigorous CO2 and emissions regulations, steam assist technology is an effective method for thermal efficiency enhancement. However, few studies apply steam assist technology in modern internal combustion engines. Stimulated by its...
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Evangelos Bellos, Ioannis Sarakatsanis and Christos Tzivanidis
The objective of the present work is the study of different thermal storage systems for a solar-fed organic Rankine cycle (ORC) system that operates with parabolic trough collectors. The conventional design with sensible thermal oil storage is compared w...
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Samuel Sami
This paper discusses the performance of nanofluids in a PV Thermal-driven Organic Rankine Cycle (ORC) with cooling capabilities. This study was intended to investigate the enhancement effect and characteristics of nanofluids; Al2O3, CuO, Fe3O4 and SiO2 o...
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Paolo Oresta, Laura Fabbiano and Gaetano Vacca
The multi-phase Rayleigh?Bènard convection has been weakly investigated, even though it plays a leading role in the theoretical and applied physics of the heat transfer enhancement. For the case of moderate turbulent convection, a rather unexpected resul...
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Ain Nazira Mohamad Nazri, Noor Faizah Che Harun
Pág. 6
Nanocomposites are defined as a promising class of hybrid materials that are mixtures of polymers with inorganic solids at the nanometric scale. Different methods of synthesizing PS - bentonite clay nanocomposites with different surfactants and different...
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Xiang Shen, Xu Deng, Barrie Mecrow, Rafal Wrobel and Richard Whalley
The work specifically targets the enhancement of cooling mechanisms in high-power permanent magnet electrical machines, with a direct application in improving the thermal management of stator windings in such devices. This advancement can significantly b...
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Gengyin Cui, Dewen Kong, Yingying Huang, Wei Qiu, Lili Cheng and Lingling Wang
The single-factor experiments are designed to quantitatively investigate the effects of silica fume, mineral powder, and fly ash on the mechanical and thermal insulation properties of desulfurization gypsum-based composites (DGCs). The effect mechanism i...
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Qudama Al-Yasiri, Márta Szabó, Müslüm Arici
Pág. 86 - 102
Solar energy represents the best alternative for traditional energy sources used in many thermal energy systems. Among solar thermal systems, Flat Plate Solar Collectors (FPSCs) are the most utilized type implemented in low and medium-level thermal domes...
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Younes Menni, Ali J. Chamkha, Chafika Zidani, Boumédiène Benyoucef
Pág. 100 - 112
A computational analysis has been conducted to investigate turbulent flow and convective thermal transfer characteristics in a two-dimensional horizontal rectangular section channel with a hot lower wall-mounted diamond-shaped baffle. The calculations ar...
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Fahimeh Rezvani,Ignacio Zabalza Bribián
Pág. 311 - 322
Energy diagnosis and check of the energy performance of traditional houses are becoming urgent and essential to achieving energy saving in the residential sector. The paper presents the results of experimental studies focused on the enhancement of ...
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Styliani Papatzani and Kevin Paine
With the current paper three nano-Montmorillonites (nMt) are applied in cement nanohybrids: an organomodified nMt dispersion, nC2; an inorganic nMt dispersion, nC3; and an organomodified powder, nC4. nC4 is fully characterized in this paper (X-ray diffra...
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Siyang Zheng, Jie Yu and Zhenyuan Xu
Zero-liquid discharge wastewater treatment driven by sunlight shows potential to minimize its environmental impact by producing solid-only waste from solar energy. To overcome the key barrier of solar absorber contamination, solar-driven contactless evap...
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