Results 61 to 70 of about 3,985 (187)

The ambient temperature influence on deaerator exergy efficiency and exergy losses [PDF]

, 2019
The exergy analysis of deaerator at three different steam power plant loads is performed in this paper. Also, the influence of the ambient temperature change on deaerator exergy efficiency and losses is analyzed. From the exergy viewpoint, deaerator operation shows the best characteristics at middle and high power plant loads.
Orović, Josip, Mrzljak, Vedran, Čulin, Jelena, Poljak, Igor   +3 more
openaire   +1 more source

Influence of Structural and Environmental Parameters on Solar Air Collector Performance

Energy Science &Engineering, EarlyView.
Increasing air gap depth and mass flow rate significantly enhances the thermal performance of solar air collectors, with optimal performance achieved at an 8.5 cm air gap and 0.01318 kg/s mass flow rate. Air gap depth is identified as the dominant factor influencing system efficiency.
Quankun Zhu, István Farkas, János Buzas   +2 more
wiley   +1 more source

Exergy-Based Sustainability Assessment of Gold Mining in Colombia: A Comparative Analysis of Open-Pit and Alluvial Mining

Energies
Thermodynamic methods such as exergy analysis enable the evaluation of environmental load (environmental impacts) by quantifying entropy generation and exergy destruction associated with using renewable and non-renewable resources throughout a production
Natalia A. Cano-Londoño, Javier Ordoñez-Loza, Héctor I. Velásquez, Heriberto Cabezas   +3 more
doaj   +1 more source

Investigating the Iron‐Steam Process for Coupling With SOEC and SOFC: A Step Toward Integrated Hydrogen and Electricity Storage

steel research international, EarlyView.
Fixed‐bed reactor experiments (10 L) validate the iron–steam redox process, bridging material‐scale research and industrial power‐to‐power applications. Coupled with SOEC/SOFC systems, this framework defines critical interfaces for heat and gas management. Results confirm reproducible hydrogen storage and release, demonstrating technical feasibility at
Julien Göthel, Radek Vostal, Olena Volkova   +2 more
wiley   +1 more source

Feasibility study of using industrial wind turbine in Manjil city by energy, exergy, economic and exergy destruction analysis

Journal of Applied Science and Engineering
The importance of producing clean energy without any pollutants, including carbon dioxide and nitrogen oxides, has increased due to climate changes caused by global warming. Wind turbine can produce clean energy. To use a wind turbine, the feasibility of
Xiaoyuan An, Qi Zhao, Xiaoli Li
doaj   +1 more source

Exergy analysis of a four pan jaggery making process

Energy Reports, 2018
Jaggery is a non-traditional sweetener that is produced from boiling sugarcane juice. Due to the energy intensive nature of the combustion process in jaggery making, previous studies in literature have presented various process and equipment ...
Sanober Khattak, Richard Greenough, Vishal Sardeshpande, Neil Brown   +3 more
doaj   +1 more source

The Energy and Exergy of Light with Application to Societal Exergy Analysis

Energies, 2020
Lighting provides an indispensable energy service, illumination. The field of societal exergy analysis considers light (and many other energy products) to be enablers of economic growth, and lighting contributes a non-negligible proportion of total ...
Matthew Kuperus Heun, Zeke Marshall, Emmanuel Aramendia, Paul E. Brockway   +3 more
doaj   +1 more source

Hevea brasiliensis seeds: A novel sustainable feedstock for ethanol production

Vietnam Journal of Chemistry, EarlyView.
Abstract The rubber tree (Hevea brasiliensis) is cultivated on a large scale mainly for the extraction of latex in Brazil and Southeast Asia, also generating large quantities of seeds. These seeds currently do not have large‐scale applications and may thus be considered as a residue.
Giovano Tochetto, Fernanda Oliveira Lima, Letiére Cabreira Soares, Dalila Moter Benvegnú, André Lazarin Gallina   +4 more
wiley   +1 more source

Exergy Efficiency of Interplanetary Transfer Vehicles [PDF]

, 2019
In order to optimize systems, systems engineers require some sort of measure with which to compare vastly different system components. One such measure is system exergy, or the usable system work. Exergy balance analysis models provide a comparison of different system configurations, allowing systems engineers to compare different systems configuration
Sean T. Owen, Michael D. Watson, Mitchell A. Rodriguez   +2 more
openaire   +1 more source

An Overview of High‐Temperature Superconducting Cables in DC Systems: Unlocking Potential for High‐Voltage DC Networks

High Voltage, EarlyView.
ABSTRACT This paper provides an overview of high‐temperature superconducting (HTS) cables in DC systems, with a focus on their deployment in high‐voltage DC (HVDC) networks. The assessment of HTS cable properties—such as extremely low electrical resistance, high current‐carrying capacity and a compact geometry—and their comparison with those of ...
Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi   +2 more
wiley   +1 more source