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Thermodynamic assessment of impact of inlet air cooling techniques on gas turbine and combined cycle performance

Mohapatra, Alok Ku; Sanjay - In: Energy 68 (2014) C, pp. 191-203

The article is focused on the comparison of impact of two different methods of inlet air cooling (vapor compression and vapor absorption cooling) integrated to a cooled gas turbine based combined cycle plant. Air-film cooling has been adopted as the cooling technique for gas turbine blades. A...

Persistent link: https://www.econbiz.de/10011054260

Study of the influence of heat exchangers' thermal resistances on a thermoelectric generation system

Astrain, D.; Vián, J.G.; Martínez, A.; Rodríguez, A. - In: Energy 35 (2010) 2, pp. 602-610

In this paper, a computational study of the influence of the heat exchangers' thermal resistances (in both the hot and cold side) on the efficiency of a thermoelectric generation device has been carried out.

Persistent link: https://www.econbiz.de/10011055480

Thermodynamic and thermoeconomic analysis of a system with biomass gasification, solid oxide fuel cell (SOFC) and Stirling engine

Rokni, Masoud - In: Energy 76 (2014) C, pp. 19-31

) and Stirling engine for combined heat and power (CHP) with a net electric capacity of 120kWe have been performed … renewable systems of similar scales, this result shows that if both SOFC and Stirling engine technology enter the …

Persistent link: https://www.econbiz.de/10010939815

Scaling laws for free piston Stirling engine design: Benefits and challenges of miniaturization

Formosa, Fabien; Fréchette, Luc G. - In: Energy 57 (2013) C, pp. 796-808

This work explores the scaling effects for FPSE (free piston Stirling engines), which are known for their simple … from the physics underlying the behavior of the free piston Stirling machine and their relevancy is backed up by … comparisons between documented Stirling engines from the literature. Keeping constant values for each group throughout the scaling …

Persistent link: https://www.econbiz.de/10010810850

Thermodynamic analysis of SOFC (solid oxide fuel cell)–Stirling hybrid plants using alternative fuels

Rokni, Masoud - In: Energy 61 (2013) C, pp. 87-97

oxide fuel cell (SOFC) on top of a Stirling engine. The off-gases produced in the SOFC cycle are fed to a bottoming Stirling … improves the overall electrical efficiency relative to that of a stand-alone Stirling engine or SOFC plant. For the combined … SOFC and Stirling configuration, the overall power production was increased by approximately 10% compared to that of a …

Persistent link: https://www.econbiz.de/10011055055

Performance investigation of transcritical carbon dioxide two-stage compression cycle with expander

Yang, Jun Lan; Ma, Yi Tai; Liu, Sheng Chun - In: Energy 32 (2007) 3, pp. 237-245

The trend toward the energy efficiency improvement for transcritical carbon dioxide refrigeration cycles has led to the …

Persistent link: https://www.econbiz.de/10010807375

Optimization of ejector-expansion transcritical CO2 heat pump cycle

Sarkar, Jahar - In: Energy 33 (2008) 9, pp. 1399-1406

Optimization studies along with optimum parameter correlations, using constant area mixing model are presented in this article for ejector-expansion transcritical CO2 heat pump cycle with both conventional and modified layouts. Both the energetic and exergetic comparisons between valve, turbine...

Persistent link: https://www.econbiz.de/10010810173

Optical performance of inclined south-north single-axis tracked solar panels

Li, Zhimin; Liu, Xinyue; Tang, Runsheng - In: Energy 35 (2010) 6, pp. 2511-2516

To investigate optical performance of the inclined south-north single-axis (ISN-axis, in short) tracked solar panels, a mathematical procedure to estimate the annual collectible radiation on fixed and tracked panels was suggested based on solar geometry and monthly horizontal radiation. For...

Persistent link: https://www.econbiz.de/10011053685

Potential of organic Rankine cycle using zeotropic mixtures as working fluids for waste heat recovery

Li, You-Rong; Du, Mei-Tang; Wu, Chun-Mei; Wu, Shuang-Ying; … - In: Energy 77 (2014) C, pp. 509-519

The performance of the ORC (organic Rankine cycle) systems using zeotropic mixtures as working fluids for recovering waste heat of flue gas from industrial boiler is examined on the basis of thermodynamics and thermo-economics under different operating conditions. In order to explore the...

Persistent link: https://www.econbiz.de/10011077731

A highly efficient combined multi-effect evaporation-absorption heat pump and vapor-compression refrigeration part 2: Thermoeconomic and flexibility analysis

Janghorban Esfahani, Iman; Yoo, Changkyoo - In: Energy 75 (2014) C, pp. 327-337

pressure compressor of the VCR (vapor compression refrigeration) system, the price of steam, and the price of electricity on …

Persistent link: https://www.econbiz.de/10010931358