The increase of the maximal cycle temperature is considered as one best tools to efficiency for all thermodynamic cycles, including Organic Rankine Cycles (ORC). Technically, this can be done in various ways, but probably solution use hybrid systems, i.e., using an added high-temperature heat source existing low-temperature source. Obviously, kind improvement has technical difficulties and cost...

The emergence of global order in complex systems with locally interacting components is most striking at criticality, where small changes control parameters result a sudden reorganization. We study the thermodynamic efficiency interactions self-organizing systems, which quantifies change system’s per unit work carried out on (or extracted from) system. analytically derive for case quasi-static ...

BACKGROUND: It is commonly held that "a calorie is a calorie", i.e. that diets of equal caloric content will result in identical weight change independent of macronutrient composition, and appeal is frequently made to the laws of thermodynamics. We have previously shown that thermodynamics does not support such a view and that diets of different macronutrient content may be expected to induce d...

Recent years have seen a tremendous progress in the microscopic theoretical treatment of surfaces and processes on surfaces. While some decades ago a phenomenological thermodynamic approach was dominant, a variety of surface properties can now be described from first principles, i.e. without invoking any empirical parameters. Consequently, the field of theoretical surface science is no longer l...

A sustainable global community requires the successful integration of environment and engineering. In the public and private sectors, designing cyclical ("closed loop") resource networks increasingly appears as a strategy employed to improve resource efficiency and reduce environmental impacts. Patterning industrial networks on ecological ones has been shown to provide significant improvements ...

Thermodynamic analysis of a novel combined system which is combination of methane fired gas turbine cogeneration system (CGAM) with a supercritical CO2 recompression Brayton cycle (SCO2) and an Organic Rankine Cycle (ORC) is reported. Also, a comprehensive parametric study is performed to investigate the effects on the performance of the proposed system of some important parameters. Finally, a ...

A new simulation model for Hydrogen production is developed on the Aspen Plus platform. Designing, Analysis and Optimization of the Metal Chloride based cyclic process is done thereby calculating the energy, exergy and overall efficiency of the same using the simulation software. Kinetic and thermodynamic analysis of chemical reactions occurring in each equipment of the proposed model is done. ...

Increasing concerns about energy and emissions from fuel consumption in gas turbines has attracted many researchers to protect the environment and reduce pollutants in the world. The main objective of this paper is to investigate the increasing efficiency of three-stroke gas turbine operation based on the technical analysis of the operation of three-axis gas turbine cycles with non-design condi...