Exergetic and economic evaluation of a novel integrated system for trigeneration of power, refrigeration and freshwater using energy recovery in natural gas pressure reduction stations

Golchoobian, Hooman; Saedodin, Seyfolah; Ghorbani, Bahram

doi:10.1007/s10973-021-10607-7

Cited by 15 publications

(3 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Research has been performed focusing on optimizing the required heat, power generation and consumption, economic costs, efficiencies, and environmental friendliness of industrial processes as one of the promising methods used in economic assessments of thermally integrated processes [16][17][18]. Multi-objective optimization using a combination of neural networks and genetic algorithms of Non-dominated Sorting Genetic Algorithm-II (NSGA-II) has been widely used in related studies, with decision-making methods (e.g., fuzzy, LINMAP, and TOPSIS) to find final optimal data from the analysis.…”

Section: Introductionmentioning

confidence: 99%

Economic Appraisal and Enhanced Efficiency Optimization for Liquid Methanol Production Process

Khatamijouybari,

Ilinca

2024

Sustainability

View full text Add to dashboard Cite

The presented study examines the economic viability and optimization of a previously designed integrated process for producing liquid methanol. The annualized cost of the system method is applied for economic analysis. The optimization method includes a robust hybrid approach that combines the NSGA-II multi-objective optimization algorithm with artificial intelligence. Decision variables for the optimization are taken from a sensitivity analysis to optimize the exergy and energy efficiencies and the investment return period. Decision-making methodologies, including LINMAP, fuzzy, and TOPSIS, are utilized to identify the optimal outcomes, effectively identifying points along the Pareto-optimal front. Compared with the original design, the research outcomes demonstrate an over 38% reduction in the process’s investment return period post optimization, as evaluated through the TOPSIS and LINMAP methodologies. Additionally, the highest level of thermal efficiency achieved through optimization stands at 79.9%, assessed using the LINMAP and TOPSIS methods, and 79.2% using the fuzzy Bellman–Zadeh method. The process optimization in the presented research, coupled with the improved economic feasibility, mitigates energy consumption through maximizing efficiency, thereby fostering sustainable and environmentally friendly development.

show abstract

Section: Introductionmentioning

confidence: 99%

Economic Appraisal and Enhanced Efficiency Optimization for Liquid Methanol Production Process

Khatamijouybari,

Ilinca

2024

Sustainability

View full text Add to dashboard Cite

show abstract

“…To recover this part of the pressure difference, an expander can be used to replace the original pressure-reducing valve, 10 thus realizing the transformation of electrical energy and cold energy. 11 − 15 …”

Section: Introductionmentioning

confidence: 99%

“…Usually, the gas pressure regulating station uses a throttling valve or a pressure control valve to reduce the gas pressure in the transmission pipeline and to convey it to the user. To recover this part of the pressure difference, an expander can be used to replace the original pressure-reducing valve, thus realizing the transformation of electrical energy and cold energy. − …”

Section: Introductionmentioning

confidence: 99%

Modeling and Off-Design Performance Analysis of a Screw Expander-Based Steam Pressure Energy Recovery System in a Combined Heat and Power Unit

et al. 2021

ACS Omega

View full text Add to dashboard Cite

A screw expander-based heating system is proposed based on a 330 MW combined heat and power unit to recover the extraction steam pressure energy. EBSILON Professional software was applied to model the proposed system, and the thermal performance of the traditional system and the new system was compared under different operating conditions. The results show that under the designed heating condition, the standard coal consumption rate of the new system is reduced by 4.74 g/kWh, and the exergy efficiency of the heating process is increased by 17.29%. When the extraction steam pressure changes with the load within a range greater than 0.1 MPa, there is an optimal operating range for the new system, which is related to the built-in pressure ratio of the screw expander and the extraction steam pressure difference, and the distribution of the optimal operating range varies with the supply-water temperature. The heating process exergy efficiency of the two systems shows opposite trends under off-design conditions. Additionally, under the condition of meeting the extraction steam pressure, the method for increasing the output power of the screw expander by adjusting the butterfly valve to increase the extraction steam pressure only increases the standard coal consumption rate of the system. Furthermore, through an application case study, the annual economic benefit of the new system is expected to be ¥ 4.15 million, and the payback period is 5.02 years.

show abstract

Exergetic, exergo-economic, and exergo-environmental analyses of a trigeneration system driven by biomass and natural gas

Jalili

Ghasempour

Ahmadi

et al. 2021

J Therm Anal Calorim

View full text Add to dashboard Cite

Exergetic and economic evaluation of a novel integrated system for trigeneration of power, refrigeration and freshwater using energy recovery in natural gas pressure reduction stations

Cited by 15 publications

References 49 publications

Economic Appraisal and Enhanced Efficiency Optimization for Liquid Methanol Production Process

Economic Appraisal and Enhanced Efficiency Optimization for Liquid Methanol Production Process

Modeling and Off-Design Performance Analysis of a Screw Expander-Based Steam Pressure Energy Recovery System in a Combined Heat and Power Unit

Exergetic, exergo-economic, and exergo-environmental analyses of a trigeneration system driven by biomass and natural gas

Contact Info

Product

Resources

About