Thermo-economic optimization of a hydrogen storage structure using liquid natural gas regasification and molten carbonate fuel cell

Economic Appraisal and Enhanced Efficiency Optimization for Liquid Methanol Production Process

“…Within the domain of economic scrutiny, the analysis considers the economic backdrop, entailing factors such as an annual inflation rate set at one percent, a nominal interest rate of 1.5 percent, and a foreseeable operational lifetime spanning twenty years. For a comprehensive understanding of calculating the equipment's costs utilized within the newly devised framework, valuable and in-depth insights can be sourced from dependable references [33][34][35][36]. The economic facets of the system are assessed through a meticulous consideration of the scale of the methanol production reactor.…”

Strategies To Improve the Performance of Hydrogen Storage Systems by Liquefaction Methods: A Comprehensive Review

“…A hybrid system for H 2 liquefaction and storage was proposed using the LNG cold recovery system for precooling and four MRCs for liquefaction. Fuel cells unit, gas turbine power plants, two-stage organic Rankine cycles (ORC), and a CO 2 power system were utilized to provide power . The power consumption, COP, and SEC for the proposed system were calculated to be 3.872 kWh/kgLH 2 , 0.175, and 4.772 kWh/kgLH 2 , respectively.…”

“…A complete knowledge of the cryogenic cycle arrangement and its distance from the optimal arrangement is gained using the CCs, GCCs, and heat exchanger networks as the qualitative indexes obtained from pinch analysis in H 2 liquefaction systems. Next, by altering the design and arrangement of the equipment in the refrigeration process, the optimal arrangement is selected. ,,,,, It is possible to target the overall costs of the system, including the operational costs of energy supply and the initial costs of providing network equipment using CC and GCC diagrams. Thus, by changing Δ T min and calculating the cost of the required level for the network and the cost of providing utility services, the system total cost is calculated for each Δ T min , and then, the lowest total cost required for the system as the target point is determined.…”

“…Table presents the technical specifications of liquid H 2 production systems and other byproducts. Waste heat from fuel cells, Fischer–Tropsch reactors, and oxy–fuel power plants can be used to produce and liquefy H 2 . ,,, Besides, the precooling process can be substituted by using inexpensive LN 2 that comes directly from the air separation system to generate liquid oxygen …”

“…Fuel cells unit, gas turbine power plants, two-stage organic Rankine cycles (ORC), and a CO 2 power system were utilized to provide power. 224 The power consumption, COP, and SEC for the proposed system were calculated to be 3.872 kWh/kgLH 2 , 0.175, and 4.772 kWh/kgLH 2 , respectively. According to the findings, employing the chilling process of the LNG regasification operation for precooling decreases the exergy yield of the H 2 liquefaction unit from 39.4% to 38% and the power consumption from 6.642 to 3.822 kWh/kgLH 2 .…”