Results 31 to 40 of about 12,741 (256)

A study on variable operating characteristics of a direct air-cooling exhaust steam extraction heat supply system

Zhejiang dianli, 2023
The high backpressure heating mode of direct air-cooling unit faces limitations due to the return water temperature of heat network and the coordinated heat exchanger unit control of air-cooling island. This limitation complicates the task of achieving a
XING Yue, TAN Haoyi, PEI Dongsheng, WANG Dongbo, FAN Chenghao   +4 more
doaj   +1 more source

An integrated program of a stand-alone parabolic trough solar thermal power plant: Code description and test

Case Studies in Thermal Engineering, 2018
Solar thermal systems produce steam after being energized by solar parabolic trough concentrators, are incorporated with a steam turbine-generator assembly to produce electricity.
Sanan T. Mohammad, Hussain H. Al-Kayiem, Morteza K. Assadi, Osama. Sabir, Ayad K. Khlief   +4 more
doaj   +1 more source

Exergetic Analysis of a New Direct Steam Generation Solar Plant Using Screw Expanders

Energies, 2020
Screw expanders are volumetric machines particularly suitable in energy conversion with steam−liquid mixtures and for the exploitation of low temperature heat sources.
Paolo Iodice, Giuseppe Langella, Amedeo Amoresano   +2 more
doaj   +1 more source

Cavity-shaped direct solar steam generator employing conical helical tube for high-temperature application: Model development, experimental testing and numerical analysis

Energy Conversion and Management: X, 2023
Concentrating solar thermal technologies are drawing more attention since it can substantially contribute to a carbon-neutral society. The solar receivers are essential in this technology to convert solar energy efficiently into thermal energy. Moreover,
Yasuki Kadohiro, Vamshi Krishna Thanda, Bruno Lachmann, Kai Risthaus, Nathalie Monnerie, Martin Roeb, Christian Sattler   +6 more
doaj   +1 more source

Methodology for an Opto-Geometric Optimization of a Linear Fresnel Reflector for Direct Steam Generation

Energies, 2020
A methodology for an optical optimization of the intercept factor concerning a linear Fresnel reflector is described to increase the amount of solar irradiation that will be delivered in the absorber for Agua Prieta, Sonora; taking the FRESDEMO’s ...
Eduardo González-Mora, Ma. Dolores Durán García   +1 more
doaj   +1 more source

Comparative Study Between Direct Steam Generation and Molten Salt Solar Tower Plants in the Climatic Conditions of the Eastern Moroccan Region

International Journal of Renewable Energy Development, 2020
This study deals with a numerical investigation to assess and compare the thermal and economic performance of two solar tower power systems. It concerns the Molten Salt (MS) and Direct Steam Generation (DSG) technologies used as heat carrier and storage.
Hanane Ait Lahoussine Ouali, Mohammed Amine Moussaoui, Ahmed Mezrhab, Hassane Naji   +3 more
doaj   +1 more source

Low-carbon hydrogen via integration of steam methane reforming with molten carbonate fuel cells at low fuel utilization

Advances in Applied Energy, 2021
Hydrogen production is critical to many modern chemical processes – ammonia synthesis, petroleum refining, direct reduction of iron, and more. Conventional approaches to hydrogen manufacture include steam methane reforming and autothermal reforming ...
Stefano Consonni, Luca Mastropasqua, Maurizio Spinelli, Timothy A. Barckholtz, Stefano Campanari   +4 more
doaj   +1 more source

Numerical analysis and optimization of the charging process on a shell‐and‐tube latent heat thermal energy storage unit for a solar power plant with direct steam generation

Energy Science & Engineering, 2023
A two‐dimensional model of the charging process on a heat storage unit in a shell‐and‐tube type latent heat subsystem of a solar power plant with direct steam generation was constructed in this study.
Yajun Deng, Zhengyue Zhu, Wenzhao Wang, Qianhao Ye, Bo Yu, Dongliang Sun   +5 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

Advanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao, Dongfang Lv, Chang Liu, Changxu Wu, Yifei Liu, Caili Dai, Huazhou Li   +6 more
wiley   +1 more source