4 results about "Exergy" patented technology

This invention discloses a computer apparatus whose instructions describe a process which analyzes system entropy flows, irreversible losses and Carnot reversibilities associated with heat exchangers used in thermal engines. Irreversible losses include those from shell and tube heat exchangers, and those from the shell-side of heat exchangers such as condensers. This disclosure teaches revision to the classic Carnot Engine resulting in an Exergetic Engine. The Exergetic Engine was created by recognizing true thermodynamic irreversibility associated with any heat exchanger is determined by the summation of its internal exergy flows. This leads to a correction of Sadi Carnot's THot. For the nuclear engine, his TCold is redefined as a Fixed TRef dependent on neutronic constants and reactor coolant properties. Correcting his 200 year-old teachings produce an irreversible loss and an Exergetic Reversibility applicable to any heat exchanger used in any thermal engine.

The application discloses a carbon quota allocation method and system for complex discrete manufacturing industry based on process modularization and exergy analysis, and discloses an initial carbon quota allocation method for complex discrete manufacturing industry such as electrical equipment based on process modularization and exergy analysis according to the basic logic of carbon quota allocation.A standard process module benchmark library is established and released, the benchmark library is constructed and merged through industry manufacturing process, and the complexity of benchmark setting and management is greatly reduced; a carbon emission-exergy consumption mathematical model is established, the model strictly reveals the strong positive correlation between total carbon emission and total exergy consumption of the industrial process; the annual total equivalent exergy consumption activity level is adopted, the carbon quota is allocated based on the unified exergy physical dimension, and the fairness and efficiency are ensured.The application realizes the unity, fairness and quantization of different processes and products, effectively solves the problem that the prior art is difficult to scientifically allocate the quota for complex manufacturing industry, and has significant technical progress and practical value.

This invention discloses a computer apparatus whose instructions describe a process which greatly improves the analysis of system entropy flows, irreversible losses and Carnot Reversibilities associated with heat exchangers used in all thermal engines. Irreversible losses include those from shell and tube heat exchangers, as a component, and those from the shell-side of heat exchangers such as condensers. The understanding of any thermal engine lies with either understanding its inputs and useful power output, and / or understanding system losses. This disclosure focuses on entropy flows and system losses. It results in revision to the classic Carnot Engine resulting in an Exergetic Engine. Although Exergetic Engine's roots are embedded in Carnot's device, its invention is uniquely created by recognizing true thermodynamic irreversibility associated with any heat exchanger is determined by the summation of its internal exergy flows. This leads to a correction of Sadi Carnot's THot. For the nuclear engine, his TCold is also redefined as a Fixed TRef dependent on neutronic constants and the core's coolant properties. Correcting his 200 year-old teachings produce a highly accurate irreversible loss, and thus a highly accurate Carnot Reversibility which improves the thermodynamic understanding of all thermal engines. With such improved understanding, the system operator has actionable intelligence which can protect the public, and corrects degradations within the power plant which improve operations.

The application relates to a fuel cell system component adaptation selection method based on advanced exergy and energy quality coupling characteristics, and belongs to the technical field of fuel cell system design integration, and comprises the following steps: S1, constructing a database containing multiple alternative components, and establishing a virtual system thermodynamic model of different hardware combinations; S2, performing exergy loss disassembly on each alternative component combination based on an advanced exergy method, identifying inevitable exergy loss caused by technical limits, and determining the performance saturation degree of the alternative components to preliminarily remove over-designed models; S3, quantitatively evaluating the exogenous exergy loss strength generated by the alternative components by constructing an exergy loss coupling matrix, and screening an optimal adaptation model combination by taking the minimum total avoidable exergy loss of the system as a criterion; and S4, comprehensively considering exergy loss evolution and other costs in the whole life cycle, and finally determining the optimal component selection combination of the system.