Improvement design and analysis of a supercritical CO2/transcritical CO2 combined cycle for offshore gas turbine waste heat recovery

Energy ◽  
2020 ◽  
Vol 210 ◽  
pp. 118562
Author(s):  
Aozheng Zhou ◽  
Xue-song Li ◽  
Xiao-dong Ren ◽  
Chun-wei Gu
Keyword(s):  
Gas Turbine ◽  
Supercritical Co2 ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Combined Cycle

Performance Improvement of a Supercritical CO2 and Transcritical CO2 Combined Cycle for Offshore Gas Turbine Waste Heat Recovery

2020 ◽  
Author(s):  
Aozheng Zhou ◽  
Xiaodong Ren
Keyword(s):  
Gas Turbine ◽  
Power Output ◽  
Supercritical Co2 ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Net Present Value ◽  
Waste Heat ◽  
Combined Cycle ◽  
Net Power Output ◽  
The Mathematical Model

Abstract The supercritical CO2 (S-CO2) and transcritical CO2 (T-CO2) combined cycle is a promising technology for the waste heat recovery of the offshore gas turbine. In this paper, a new system layout is proposed to investigate the thermodynamic and economic performances improvement of the S-CO2-T-CO2 combined cycle. Compared to the original systems, the residual heat of the topping S-CO2 cycle is recovered and extra recuperation is added to the bottoming T-CO2 cycle. Sensitivity analysis of different systems is carried out based on the mathematical model and multi-objective optimization is conducted. The net power out and the net present value (NPV) are chosen as the objective functions of thermodynamic and economic aspects. The results reveal that at the design point, the improved system has more than 8.23% increment on the net power output and 3.55% increment on the NPV. Besides, the optimized net power output of the improved system attains at least 5.16% increment with 3.15% increment for the optimized NPV at the same time. The improved system can be applied in some practical cases from both the thermodynamic and economic views.

Optimal structure design of supercritical CO2 power cycle for gas turbine waste heat recovery: A superstructure method

2021 ◽  
Vol 198 ◽  
pp. 117515
Author(s):  
Chendi Yang ◽  
Yuanyuan Deng ◽  
Ning Zhang ◽  
Xiaopeng Zhang ◽  
Gaohong He ◽  
...  
Keyword(s):  
Gas Turbine ◽  
Supercritical Co2 ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Structure Design ◽  
Optimal Structure ◽  
Power Cycle

The Gas Turbine Waste Heat Recovery System and the U.S. Navy

1978 ◽  
Author(s):  
H. D. Marron ◽  
R. S. Carleton
Keyword(s):  
Gas Turbine ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Development Program ◽  
Combined Cycle ◽  
Current Status ◽  
Design Concepts ◽  
Waste Heat Recovery System ◽  
The U.S

This paper will discuss the current status of the gas turbine waste heat recovery systems in the U.S. Navy. This will include discussions of the auxiliary systems currently operational on the SPRUANCE Class Destroyers as well as the combined-cycle cruise propulsion systems currently planned for development initiation in FY’78. The major emphasis of the discussion will be to detail the rationale and to identify the basis upon which the U.S. Navy arrived at a decision to develop combined cycle systems to be available for non-nuclear combatant ship cruise propulsion for the mid 1980’s. The design concepts considered feasible for these applications will be discussed as well as an overview of the development program to completion.

Gas Turbine Engine Exhaust Waste Heat Recovery Using Supercritical CO2 Brayton Cycle With Thermoelectric Generator Technology

2015 ◽  
Author(s):  
Francis A. Di Bella
Keyword(s):  
Gas Turbine ◽  
Supercritical Co2 ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Brayton Cycle ◽  
Prime Mover ◽  
Engine Exhaust ◽  
Turbine Engine ◽  
Exhaust Waste Heat

This presentation will discuss the results of the feasibility analysis of a Brayton cycle-based, supercritical CO2 system that recovers waste heat from an MT30 gas turbine used in marine applications. The analysis also included the use of thermoelectric generator (TEG) devices that are one of several direct energy conversion methods known to be applicable to waste heat recovery. The analysis was conducted by Concepts NREC, in collaboration with the Maine Maritime Academy and their principal consultant, Thermoelectric Power Systems, LLC. The feasibility analysis was conducted under Navy SBIR Proposal Number N103-229-0533, entitled “Gas Turbine Engine Exhaust Waste Heat Recovery Shipboard Module Development”. The objective of the project was to improve the energy efficiency of the MT30 prime-mover power system for the Navy and other commercial vessels. The performance goal for the energy recovery system was to improve the fuel economy of the prime mover by 20% when significantly part-loaded.

scholarly journals M21 Cruise Marine Combined Cycle Plant

1995 ◽  
Author(s):  
V. I. Romanov ◽  
O. G. Zhiritsky ◽  
A. V. Kovalenko ◽  
V. V. Lupandin
Keyword(s):  
Gas Turbine ◽  
Plant Development ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Combined Cycle ◽  
Heat Recovery Boiler ◽  
Technical Data ◽  
Power Turbine ◽  
Combined Cycle Plant

The paper describes M21 cruise marine combined cycle plant for SLAVA class cruisers (COGAG arrangement). Three guided missile cruisers (Figure 1) are powered by these plants (two plants for each cruiser). During this plant development the more strict demands on weight and size had been taken into account as compared with M25 plants for merchant ships. The paper shows technical data of M21 combined cycle plant, descriptions and design features of SPA MASHPROEKT GT 6004R gas turbine with reversible free power turbine, waste-heat recovery boiler, steam turbine with a condenser and a common gear unit. More than 10 year service experience of these plants is shown in this paper.

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