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Stefania Perrella, Fabio Bisegna, Piero Bevilacqua, Daniela Cirone and Roberto Bruno
In the EU, the building sector is responsible for 40% of the global energy consumption for final uses and 36% of the carbon dioxide (CO2) emissions. Heat pumps allow for the replacement of conventional systems based on fossil fuels with the perspective o...
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Anil Basaran and Ali Cemal Benim
Nowadays, the demand for obtaining high heat flux values in small volumes has increased with the development of technology. Condensing flow inside mini- and microchannels has been becoming a promising solution for refrigeration, HVAC, air-conditioning, h...
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Jan Spriet, Ajeet Pratap Singh, Brian Considine, Madhu K. Murali and Aonghus McNabola
This paper assesses the performance of waste heat recovery from commercial kitchen wastewater in practice. A pilot study of heat recovery from the kitchen at Penrhyn Castle, a tourist attraction in North Wales (UK), is outlined. The pilot heat recovery s...
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Junqiang Shi, Ziyang Li, Jingcheng Gao, Dongjing Chen, Xiaotao Li, Ying Li, Jin Zhang and Xiangdong Kong
The integrated design of the motor and axial piston pump eliminates the coupling structure, resulting in a compact and lightweight motor-pump structure. The challenge of motors overheating has always been a major concern. To address this issue, the hydra...
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Georgios Chantzis, Effrosyni Giama and Agis M. Papadopoulos
The EU energy and climate policy has set quantitative goals for decarbonization based on the energy efficiency and the evolution of energy systems. The utilization of demand side flexibility can help towards this direction and achieve the target of highe...
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David Krcmar, Tibor Kovacs, Matej Molnar, Kamila Hodasova and Martin Zatlakovic
This research delves into the potential thermal effects on underground water systems caused by the use of thermal technologies involving extraction and injection wells. We developed a unique approach that combines straightforward calculations with comput...
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Pengxuan Wang, Yixi Wang, Weijun Gao, Tongyu Xu, Xindong Wei, Chunyan Shi, Zishu Qi and Li Bai
In cold regions, due o the impact of climatic conditions, the heat load in winter and the cooling load in summer are unbalanced. In the long-term operation of the ground-source heat pump (GSHP), the soil heat imbalance phenomenon has still not been succe...
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Yaolin Lin, Zhenyan Bu, Wei Yang, Haisong Zhang, Valerie Francis and Chun-Qing Li
The building sector accounts for over 40% of global energy consumption. The utilization of renewable energy systems such as the solar-assisted heat pump (SAHP) in buildings has been shown to improve building energy efficiency and achieve carbon neutralit...
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Tae-Youl Jeon, Chang-Min Lee and Jae-Jung Hur
Large ships adopt a central fresh water-cooling system that indirectly cools waste heat with seawater to discharge the ship's waste heat out of the ship. Such a central fresh water-cooling system is essential for future electric powered ships. Since 2010...
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Francisco B. Lamas and Vítor A. F. Costa
Characterizing the refrigerant side of heat pump water heaters (HPWHs) can be intrusive and expensive. On the other hand, direct external measurement techniques can be unfeasible, particularly in commercial HPWHs for residential applications. Non-intrusi...
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