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Friday, July 17, 2020 | History

2 edition of Combined pinch and exergy analysis for commercial power plant design found in the catalog.

Combined pinch and exergy analysis for commercial power plant design

J. Zheng

Combined pinch and exergy analysis for commercial power plant design

by J. Zheng

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  • 37 Currently reading

Published by UMIST in Manchester .
Written in English


Edition Notes

StatementJ. Zheng ; supervised by X.X. Zhu and V.R. Dhole..
ContributionsZhu, X. X., Dhole, V. R., Centre for Process Integration.
ID Numbers
Open LibraryOL21239893M

The thermal efficiency and power generation capacity of combined cycle power plants are dependent on the design of the HRSG. Thus, the HRSG must be carefully designed to take full advantage of the heat exchanged and to improve the overall performance of the plant. Table 1 shows the temperature ranges and characteristics for IW heat :// Moreover, both exergy and exergoeconomic analysis of this power plant have been conducted. To have a good insight into this study, the effects of key parameters such as compressor pressure ratio, gas turbine inlet temperature (TIT), compressor and turbine isentropic efficiency on the total exergy destruction, total exergy efficiency as well as

  As a common practice, one can divide ammonia plant into two parts, the hot-end and the cold-end. In this paper, hot section of an existing ammonia plant has been studied in details, using Pinch Analysis, and the cold section has been rechecked by the application of Combined Pinch & Exergy ://   EXERGY ANALYSIS OF COMBINED CYCLE COGENERATION SYSTEMS Çolpan, Can Özgür proposed by the author and an existing system, the Bilkent Combined Cycle Cogeneration Plant, are investigated by energy, exergy and thermoeconomic analyses. In each of these configurations, varying steam demand is considered rather Figure 6 Change of Net Power

exergy analysis [17,18]. The method of advanced exergy analysis is well-documented and has been applied to several systems, such as refrigeration machines [19] and combined cycle power plants [20]. The application of advanced and conventional exergy analyses to an industrial plant was conducted in one study [21,22] for the production of ://   of an improved graz cycle power plant for CO 2 capture,” Journal of Engineering for Gas Turbines and Power, vol. , no. 4, pp. –, [31]H. Jericha, W. Sanz, E. Göttlich, and F. Neumayer, “Design details of a MW graz cycle thermal power plant for CO,” in Proceedings of the ASME Turbo Expo Power for Land,


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Combined pinch and exergy analysis for commercial power plant design by J. Zheng Download PDF EPUB FB2

Combined pinch and exergy analysis for energy efficiency optimization in a steam power plant of the Exergy concept instead of pure thermal analysis, with the aid of PA’s design and targeting   By combining pinch analysis and exergy analysis in such a manner, it is possible to predict the shaftwork requirement or generation for both power systems and refrigeration systems with a certain accuracy [5, 6].

It must be noted that this combined pinch and exergy analysis was developed mainly for the purpose of shaftwork :// Combined pinch and exergy analysis for commercial power plant design Author: Zheng, J.

ISNI: This thesis addressesth e analysisa nd design of commercial power plants by using the Combined Pinch and Exergy Approach. Current practice in design for commercial power plants heavily relies on experience and computer simulation ?uin= Combined pinch and exergy analysis for energy efficiency optimization in a steam power plant Article (PDF Available) in International journal of physical sciences 5(7) January with 1, Reads Exergy analysis, on the other hand, provides a tool for heat and power analysis, although at times it does not provide clear practical design guidelines.

An appropriate combination of pinch and exergy analysis can provide practical methodology for the analysis of heat and power :// /Applying-Combined-Pinch-and-Exergy-Analysis-to. Exergy analysis, thermoeconomics, and combined pinch and exergy analyses are useful methods for improving design and performance of processes such as thermal power plants.

However, these methods are usually applied ://(ASCE)EY   Pinch Analysis (PA) and Exergy Analysis have been used, either independently or in combination, for energy integration of process plants. This paper discusses a methodology to apply PA and Exergy Analysis during design of a new process plant to make it energy efficient, using Diesel Hydrotreating Unit (DHT) as an ://   Bagdanavicius et al.

carried out exergy, energy and exergoeconomic analysis of four community energy supply systems including combined cycle power plant using natural gas and found out that CCPP is the most exergy efficient system with the lowest exergy cost of electricity and heat :// Applying combined pinch and exergy analysis to closed-cycle gas turbine system design Journal Article Dhole, V R ; Zheng, J P - Journal of Engineering for Gas Turbines and Power Pinch technology has developed into a powerful tool for thermodynamic analysis of chemical processes and associated utilities, resulting in significant energy ://   2.

Energy & Exergy analysis – a Case Study. An energy and exergy analysis is carried out for a captive power plant cycle of M/S Vardhman Acrylic Ltd. Is an acrylic fibre manufacturing industry located at Jhagadia, Bharuch, Gujarat, India. It employs a MWturbine - generator set with two extraction points, which supply to the process ://   Exergy analysis is a practical approach to evaluate the merit of energy conversion or distribution processes and systems.

With the aid of an energy analysis, the performance of an energy conversion system cannot be evaluated efficiently and precisely. But, an exergy analysis complements and enhances an energy analysis. Exergy analysis involves the application of exergy concepts, First, the refrigeration cycle of the NGL plant was analyzed and optimized by combined exergy-pinch analysis.

In doing so, the work of the compressor was reduced to :// Exergy analysis of a combined heat and power plant with integrated lignocellulosic ethanol production Christoffer Lythcke-Jørgensen a, Fredrik Haglindb and Lasse Røngaard Clausenc a DTU Mechanical Engineering, Section for Thermal Energy, Copenhagen, Denmark, [email protected] b DTU Mechanical Engineering, Section for Thermal Energy, Copenhagen, Denmark, [email protected]://   An exergy transfer across the boundary of a control volume system can be associated with either a material stream or an energy transfer by work or heat.

The general form of the exergy balance for a control volume system involving multiple inlet and outlet streams of matter and energy (Figure 1) is, 0 0 11, 11 1 qj nq nw cv sys cv jj jjj E r Ataei A.

and Yoo C. () ‘Combined pinch and exergy analysis for energy efficiency optimization in a steam power plant’, International Journal of Physical Sciences, vol. 5(7), pp. – Google Scholar   Combined cycle power plants (CCPPs) are preferred technology for electricity generation due to less emission and high efficiency.

These cycles are made of a gas turbine, a steam turbine and Heat Recovery Steam Generator (HRSG). In the present research study, a combined cycle power plant with dual pressure and supplementary firing is ://   Exergy analysis, on the other hand, provides a tool for heat and power analysis, although at times it does not provide clear practical design guideline.

An appropriate combination of pinch and exergy analysis can provide more» practical methodology for the analysis of heat and power :// Strength of pinch analysis is that system information can be represented using simple diagrams and thus targets for the system under consideration can be readily obtained prior to design.

In contrast, the power of exergy analysis is that it can identify the major causes of thermodynamic imperfection of thermal and chemical processes and thus   The exergy analysis shows that there is a potential for improvement of the exergetic efficiency through design modifications.

Exergy destruction is higher in the combustor, the cooling plant and the heat exchangers responsible for recovering waste heat (i.e. HEx2 and HEx3). The present paper is a thermodynamics analysis, i.e.

both energy and exergy analyses for a natural gas based combined cycle power plant. The analysis was performed for an existing MW plant. Marechal F, Favart D () Combined exergy and pinch analysis for the optimal integration of energy conversion technologies.

In: 18th International conference on efficiency, cost, optimization, simulation and environmental impact of energy systems, pp. – Google ScholarExergy analysis is performed for unit three of Zawia combined cycle power plant.

The plant is one of the largest power plants in Libya; located near Zawia city, 50 km West of ://A proposed molten carbonate fuel cell power plant design, intended for commercial production by the end of the s and developed under the auspices of the U.S. Department of Energy, the Gas Research Institute, and Energy Research Corporation, has been analyzed with exergy and pinch ://