Results 11 to 20 of about 5,581,186 (359)
Entropy, 2022 Considering that the specific heat of the working fluid varies linearly with its temperature, this paper applies finite time thermodynamic theory and NSGA-II to conduct thermodynamic analysis and multi-objective optimization for irreversible porous ...
P. Zang +4 more
semanticscholar +1 more source
Investigation of a Dual-Loop ORC for the Waste Heat Recovery of a Marine Main Engine
Energies, 2022 As carbon dioxide emissions arising from fossil energy consumption and fossil fuels are gradually increased, it is important for the low-carbon operation of ships to recover diesel engine waste heat. A newly developed dual-loop organic Rankine cycle (ORC)
Long Lyu +5 more
doaj +1 more source
Influence of metal working fluid on chip formation and mechanical loads in orthogonal cutting
The International Journal of Advanced Manufacturing Technology, 2021 Metal working fluids are used in machining processes of many hard-to-cut materials to increase tool life and productivity. Thereby, the metal working fluids act on the thermal and on the mechanical loads of the tool.
B. Denkena, A. Krödel, L. Ellersiek
semanticscholar +1 more source
Energies, 2022 Recently proposed organic flash cycles maintain lower irreversibility in the evaporator than traditional organic Rankine cycles. This study presented a novel combined heat and power system that was based on a regenerative organic flash cycle, in order to
Haojie Chen, Man-Hoe Kim
doaj +1 more source
Open Physics, 2021 To further improve the thermal efficiency of diesel engines, a waste heat recovery system model utilizing organic Rankine cycle (ORC) is constructed and verified through system bench test and heat exchanger bench test.
Li Da +5 more
doaj +1 more source
A Review of Super-High-Temperature Heat Pumps over 100 °C
Energies, 2023 The high-temperature heat pump, as a low-carbonization technology, has broad application prospects in replacing boiler heating, reducing carbon dioxide emissions, and improving the energy utilization efficiency.
Jian Sun +5 more
doaj +1 more source
Thermodynamic Efficiency Maximum of Simple Organic Rankine Cycles
Energies, 2021 The increase of the maximal cycle temperature is considered as one of the best tools to increase cycle efficiency for all thermodynamic cycles, including Organic Rankine Cycles (ORC).
Aram Mohammed Ahmed +2 more
doaj +1 more source
Investigation into the effects of surface condensation in steam-driven twin screw expanders / trans. from Engl. M. A. Fedorova [PDF]
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021 During the operation of twin screw expanders with slightly superheated vapours or even two-phase fluids, surface condensation on machine parts occurs during the filling period and the expansion phase when the working fluid is in contact with cooler ...
M. A. Fedorova
doaj +1 more source
Machines, 2022 Multi-disciplinary analysis was performed to analyze and investigate the thermal performance during transient operation of a 2 L diesel engine system with two different cooling systems.
Geesoo Lee
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Energies, 2022 The organic Rankine cycles (ORCs) have been used to convert low-enthalpy geothermal brine into power. Parameter optimization and working fluid selection are the main approaches to enhance geothermal ORC performance.
Yuan Zhao +6 more
doaj +1 more source