Thermodynamic Assessment of Heat Source Arrangements in Kalina Power Station

Ganesh, N. Shankar; Srinivas, T.

doi:10.1061/(asce)ey.1943-7897.0000100

Cited by 18 publications

(3 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The authors used supplementary firing to augment power at peak loads and the results indicated higher refrigeration effect without supplementary firing. Ganesh and Srinivas (2013) compared the parallel and the series arrangement of boiler and heat exchangers of Kalina power station. In parallel arrangement they shared the heat load between boiler and heat exchanger to gain higher power output.…”

Section: Kalina Cycle Based Power Generating Systemsmentioning

confidence: 99%

Thermodynamic analysis of Kalina cycle configurations for utilisation of geothermal energy

Deepak¹,

Gupta

2018

PIE

View full text Add to dashboard Cite

Numerical study of Kalina cycle based power generating systems has been presented to utilise low temperature geothermal heat source. Computer codes have been developed in MATLAB to evaluate the thermal properties of working fluid. The performance of systems has been analysed considering the operating parameters that suit Indian climatic conditions. Parametric analyses of the Kalina cycle configurations have been presented showing the effect of key parameters on system performance. The efficiency of low temperature Kalina cycle system is noted to be 12.95% operating at 145 o C. The cycle efficiency has improved by 2% with the incorporation of an auxiliary superheater in the system. The incorporation of an auxiliary separator increases NH 3 concentration in the vapour mixture and enables operation of the system at reduced pressure. Further, a combined system has been designed that produces electricity and cooling effect simultaneously. The combined cycle shows gain in thermal efficiency by 6%.

show abstract

Section: Kalina Cycle Based Power Generating Systemsmentioning

confidence: 99%

Thermodynamic analysis of Kalina cycle configurations for utilisation of geothermal energy

Deepak¹,

Gupta

2018

PIE

View full text Add to dashboard Cite

show abstract

“…In addition, Kalina cycles can compete with the ORC in utilizing low temperature heat sources to produce electricity. They perform better than the ORC in some respects, e.g., its boiling/condensing process occurs at a variable temperature so that the exergy destruction in the evaporator and condenser is reduced [25]. To our knowledge, the Kalina cycle (KC) has not been used to recover the waste heat from the SCRBC for producing additional electricity and no information in this regard has been reported.…”

Section: Introductionmentioning

confidence: 96%

Thermoeconomic Analysis and Optimization of a New Combined Supercritical Carbon Dioxide Recompression Brayton/Kalina Cycle

2016

View full text Add to dashboard Cite

Abstract:A new combined supercritical CO 2 recompression Brayton/Kalina cycle (SCRB/KC) is proposed. In the proposed system, waste heat from a supercritical CO 2 recompression Brayton cycle (SCRBC) is recovered by a Kalina cycle (KC) to generate additional electrical power. The performances of the two cycles are simulated and compared using mass, energy and exergy balances of the overall systems and their components. Using the SPECO (Specific Exergy Costing) approach and employing selected cost balance equations for the components of each system, the total product unit costs of the cycles are obtained. Parametric studies are performed to investigate the effects on the SCRB/KC and SCRBC thermodynamic and thermoeconomic performances of key decision parameters. In addition, considering the exergy efficiency and total product unit cost as criteria, optimization is performed for the SCRBC and SCRB/KC using Engineering Equation Solver software. The results indicate that the maximum exergy efficiency of the SCRB/KC is higher than that of the SCRBC by up to 10%, and that the minimum total product unit cost of the SCRB/KC is lower than that of the SCRBC by up to 4.9%.

show abstract

“…Another possible cycle that can be used as a bottoming cycle for a S-CO 2 cycle is the Kalina cycle. Since the Kalina cycle boiling/condensing process is at a temperature that is not constant, irreversibilities in the evaporator and condenser are reduced, increasing the second law efficiency [23]. Mahmoudi et al [24] assessed a SCRB/KC cycle exergoeconomically and found that the exergy efficiency of the SCRB/KC cycle exceeds that of the SCRB cycle by 10% and the total product unit cost for the SCRB/KC cycle is 4.9% less than that of the SCRB cycle.…”

Section: Introductionmentioning

confidence: 99%

Integration of Supercritical CO2 Recompression Brayton Cycle with Organic Rankine/Flash and Kalina Cycles: Thermoeconomic Comparison

et al. 2022

View full text Add to dashboard Cite

The use of the organic Rankine cycle (ORC), organic flash cycle (OFC) and Kalina cycle (KC) is proposed to enhance the electricity generated by a supercritical CO2 recompression Brayton (SCRB) cycle. Novel comparisons of the SCRB/ORC, SCRB/OFC and SCRB/KC integrated plants from thermodynamic, exergoeconomic and sustainability perspectives are performed to choose the most appropriate bottoming cycle for waste heat recovery for the SCRB cycle. For comprehensiveness, the performance of the SCRB/OFC and SCRB/ORC layouts are examined using ten working fluids. The influence of design parameters such as pressure ratio in the supercritical CO2 (S-CO2) cycle, pinch point temperature difference in heater and pre-cooler 1, turbine inlet temperature and pressure ratio for the ORC/OFC/Kalina cycles are examined for the main system indicators including the net output power, energy and exergy efficiencies, and unit cost of power production. The order of the exergy efficiencies for the proposed systems from highest to lowest is: SCRB/ORC, SCRB/OFC and SCRB/KC. The minimum unit cost of power production for the SCRB/ORC system is lower than that for the SCRB/KC and SCRB/OFC systems, by 1.97% and 0.75%, respectively. Additionally, the highest exergy efficiencies for the SCRB/OFC and SCRB/ORC systems are achieved when n-nonane and R134a are employed as working fluids for the OFC and ORC, respectively. According to thermodynamic optimization design, the SCRB/ORC, SCRB/OFC and SCRB/KC systems exhibit sustainability indexes of 3.55, 3.47 and 3.39, respectively.

show abstract

Thermodynamic Assessment of Heat Source Arrangements in Kalina Power Station

Cited by 18 publications

References 19 publications

Thermodynamic analysis of Kalina cycle configurations for utilisation of geothermal energy

Thermodynamic analysis of Kalina cycle configurations for utilisation of geothermal energy

Thermoeconomic Analysis and Optimization of a New Combined Supercritical Carbon Dioxide Recompression Brayton/Kalina Cycle

Integration of Supercritical CO2 Recompression Brayton Cycle with Organic Rankine/Flash and Kalina Cycles: Thermoeconomic Comparison

Contact Info

Product

Resources

About