In this paper, a novel power/refrigerating combined-system driven by the low-grade waste heat of the flue gas was introduced. It coupled a transcritical organic Rankine cycle with a vapor compression refrigeration cycle. In order to understand basic characteristics of this novel combined-system,...

Offshore oil and gas installations are mostly powered by simple cycle gas turbines. To increase the efficiency, a steam bottoming cycle could be added to the gas turbine. One of the keys to the implementation of combined cycles on offshore oil and gas installations is for the steam cycle to have...

This paper presents a study of a combined PV (photovoltaic) and thermal system that utilizes waste heat at a high temperature to drive an ORC (organic Rankine cycle). Several configurations of the ORC are evaluated for performance with the use of twenty-seven working fluids, with the goal of...

Power production from biomass can occur through external combustion (e.g. steam cycles, organic Rankine cycles, Stirling engines), or internal combustion after gasification or pyrolysis (e.g. gas engines, IGCC). External combustion has the disadvantage of delivering limited conversion...

This paper illustrates a methodology developed to facilitate the analysis of complex systems characterized by a large number of technical, economical and environmental parameters. Thermo-economic modeling of a natural gas combined cycle including CO2 separation options has been coupled within a...

A detailed exergoeconomic analysis is performed for a combined cycle in which the waste heat from the Gas Turbine-Modular Helium Reactor (GT-MHR) is recovered by an ammonia–water power/cooling cogeneration system. Parametric investigations are conducted to evaluate the effects of decision...

The aim of this work is to provide a tool for approximation to the actual energy market value. As exergy represents the quality of energy, in the normal procedure for thermoeconomic optimizing of a given thermal system, the exergy of each stream is used as the basic quantity. The usual method...

An inter-cooled combustion-turbine based combined cycle has been shown to deliver enhanced performance as compared to a simple cycle combustion-turbine based combined cycle. The cycle efficiency of ICCT-CC cycle has been maximized by the selection of an appropriate inter-cooling pressure ratio....

CCGT (Combined-cycle gas turbines) are gaining an increasingly important role in power generation thanks to their high thermal efficiency, low installed cost and ready availability. Increasing natural gas prices, the optimization of CCGT operating parameters is becoming a topic of growing interest.

This paper presents part-load evaluation of a natural gas-fired chemical looping combustion (CLC) combined cycle with CO2 capture. The novel combined cycle employs an air-based gas turbine, a CO2-turbine and a steam turbine cycle. In this combined cycle, the CLC reactors replace combustion...