Results 21 to 30 of about 22,815 (261)

Waste heat recovery of the hydrogen–water mixture from high‐temperature water electrolysis by cascade heat pump for steam generation

open access: yesEnergy Science & Engineering, 2023
Waste heat recovery is common in high‐temperature water electrolysis production, but the latent heat from the hydrogen–water mixture is not fully utilized, and the electric heater to generate steam consumes much energy.
Zhicong Fang   +3 more
doaj   +1 more source

Green steam for sustainable extraction of essential oils using solar steam generator: A techno-economic approach

open access: yesEnergy Nexus, 2023
Essential oils are natural volatiles extracted using steam. Steam generation is an energy-intensive process and is invariably based on fossil fuels, briquettes or biomass.
Viplav Hari Pise, Bhaskar N. Thorat
doaj   +1 more source

Thermoeconomic Optimization of Steam Pressure of Heat Recovery Steam Generator in Combined Cycle Gas Turbine under Different Operation Strategies

open access: yesEnergies, 2021
The optimization of the steam parameters of the heat recovery steam generators (HRSG) of Combined Cycle Gas Turbines (CCGT) has become one of the important means to reduce the power generation cost of combined cycle units.
Zhen Wang, Liqiang Duan
doaj   +1 more source

Dynamic characteristics of a solar‐aided coal‐fired power generation system under direct normal irradiance (DNI) feedforward control

open access: yesEnergy Science & Engineering, 2020
A solar‐aided coal‐fired power generation (SAPG) system is a new type of power generation system in the field of solar thermal power generation.
Liping Pang   +3 more
doaj   +1 more source

DETERMINING OF PARAMETERS OF HEAT EXCHANGE FOR VAPORIZATION OF THE MIXED REFRIGERANT ON THE HIGH THERMAL CONDUCTIVITY SINTERED POWDER CAPILLARY-POROUS COATINGS

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2018
The results of experimental research of heat exchange under the nucleate boiling of refrigerants R404a, R407c and R410a on the tubes with capillary-porous coating are presented.
A. V. Ovsyannik, E. N. Makeeva
doaj   +1 more source

Simulation of a Standalone, Portable Steam Generator Driven by a Solar Concentrator

open access: yesEnergies, 2015
Solar energy is a good solution for energy-deficiency problems, especially in regions such ‎as rural areas in the Middle East that have not been electrified yet or are ‎under electrification. In ‎this paper, with the aid of a Computational Fluid Dynamics
Mohamed Sabry   +2 more
doaj   +1 more source

Dynamic Generation of Knowledge Graph Supporting STEAM Learning Theme Design

open access: yesApplied Sciences, 2022
Instructional framework based on a knowledge graph makes up for the interdisciplinary theme design ability of teachers in a single discipline, to some extent, and provides a curriculum-oriented theme generation path for STEAM instructional design.
Qingchao Ke, Jian Lin
doaj   +1 more source

Solar-aided power generation in biomass power plant using direct steam generating parabolic trough collectors

open access: yesEnergy Reports, 2022
Parabolic trough collectors may be used to increase the temperature of a heat transfer fluid flowing inside absorber tubes. A method of solar-aided power generation in thermal power plants is using heat transfer from the high-temperature heat transfer ...
Somchart Chantasiriwan
doaj   +1 more source

Modeling and experimental investigation on a direct steam generation solar collector with flat plate thermal concentration

open access: yesEnergy Exploration & Exploitation, 2020
Currently, steam generation using solar energy mostly relies on optical concentration, which is a costly system, to generate the high temperature needed for water evaporation.
Jingkang Liang   +3 more
doaj   +1 more source

Small-Scale Solar–Bio-Hybrid Power Generation Using Brayton and Rankine Cycles

open access: yesEnergies, 2021
This study conducted a detailed technical analysis of small-scale solar–bio-hybrid power generation systems using Rankine (steam turbine) and Brayton (gas turbine) cycles. Thermodynamic models were developed to characterize the state of working fluid and
Mauricio Bustamante   +2 more
doaj   +1 more source

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