Results 41 to 50 of about 632,429 (300)

Thermodynamic Evaluation of the Hybrid Combined Cycle Power Plant in the Valley of Mexico

Energies
Modern power generation aims to maximize the extraction of thermal energy from fossil fuels to produce electricity. Combined cycle power plants, leaders in efficiency, sometimes require an additional steam generator to compensate for insufficient exhaust
Ladislao Eduardo Méndez-Cruz, Martín Salazar-Pereyra, Raúl Lugo-Leyte, Mauricio Sales-Cruz, Alejandro Torres-Aldaco, Helen D. Lugo-Méndez   +5 more
doaj   +1 more source

A New Method for Simultaneous Determination of the TDC Offset and the Pressure Offset in Fired Cylinders of an Internal Combustion Engine

Energies, 2017
An innovative computationally efficient method for the simultaneous determination of top dead centre (TDC) offset and pressure offset is presented. It is based on characteristic deviations of the rate of heat release (ROHR) that are specific for both ...
Urban Žvar Baškovič, Rok Vihar, Igor Mele, Tomaž Katrašnik   +3 more
doaj   +1 more source

Structural Characterization of Cis– and Trans–Pt(NH₃)₂Cl₂ Conjugations with Chitosan Nanoparticles

Molecules, 2022
The conjugation of chitosan 15 and 100 KD with anticancer drugs cis– and trans–Pt (NH3)2Cl2 (abbreviated cis–Pt and trans–Pt) were studied at pH 5–6.
Penparapa Chanphai, Gervais Bérubé, Heidar-Ali Tajmir-Riahi   +2 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Performance Evaluation of a Combined Heat and Power Generation System with Borehole Thermal Energy Storage: A Feasibility Study of a Combined Heat Pump and Organic Rankine Cycle System

Energies
The current research is focused on the introduction of a heat pump (HP)-assisted organic Rankine cycle (ORC), which runs on the heat extracted from a high-temperature borehole thermal energy storage (BTES).
Roshaan Mudasar, Wey H. Leong
doaj   +1 more source

Thermodynamic and Economic Analysis of an Integrated Solar Combined Cycle System

Entropy, 2018
Integrating solar thermal energy into the conventional Combined Cycle Power Plant (CCPP) has been proved to be an efficient way to use solar energy and improve the generation efficiency of CCPP.
Shucheng Wang, Zhongguang Fu, Sajid Sajid, Tianqing Zhang, Gaoqiang Zhang   +4 more
doaj   +1 more source

Thermodynamic Analysis and Optimization Design of a Molten Salt–Supercritical CO₂ Heat Exchanger

Energies, 2022
The performance of a heat exchanger is directly related to the energy conversion efficiency of the thermal storage system, and its optimal design is an important method to improve the performance of the heat exchanger.
Xiaoming Dong, Cancan Zhang, Yuting Wu, Yuanwei Lu, Chongfang Ma   +4 more
doaj   +1 more source

Dynamic Stability and Thermodynamic Characterization in an Enzymatic Reaction at the Single Molecule Level

, 2011
In this work we study, at the single molecular level, the thermodynamic and dynamic characteristics of an enzymatic reaction comprising a rate limiting step.
Chimal-Eguia, Chimal-Eguia, Esposito, Ge, Guzman-Vargas, Holmes, Huang, Huang, Huang, Huang, Huang, Huang, Kitano, Kitano, Lesne, Moisés Santillán, Nie, Nie, Páez-Hernández, Páez-Hernández, Qian, Santillán, Santillán, Santillán, Zeron   +24 more
core   +1 more source

Convex analysis and thermodynamics [PDF]

Kinetic & Related Models, 2013
Convex analysis is very useful to prove that a material model fulfills the second law of thermodynamics. Dissipation must remains non-negative and an elegant way to ensure this property is to construct an appropriate pseudo-potential of dissipation.
Point, Nelly, Erlicher, Silvano
openaire   +2 more sources

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source