Regions with abundantly available renewable energy are not necessarily the same as those a high population density and consumption. Therefore, can be produced in optimal climate conditions remote hub transported to these population-dense regions. To establish this transport regions, ammonia provides flexible, easy-to-handle carrier. However, current literature rarely considers impact of techno-economic uncertainty on feasibility transport. Using uncertainties, we performed robust design...

Wind and solar energies present a time space disparity that generally leads to mismatch between the demand supply. To harvest their maximum potentials, one of main challenges is storage transport these energies. This challenge can be tackled by electrofuels, such as hydrogen, methane, methanol. They offer three advantages: compatibility with existing distribution networks or technologies conversion, economical solution for high capacity, ability couple sectors (i.e., electricity transport,...

Climate change is a constant call for the massive deployment of intermittent renewable energy sources, such as solar and wind.However, to cover demand at all times, these sources require storage over more extended periods.In this framework, in form hydrogen gaining ground on leading transition today's economy towards decarbonization.Among others, can be integrated into multiple sectors: converted back electricity (power-to-power), it used produce low-carbon fuels (power-to-fuel), fuel...

Abstract Despite the considerable uncertainty in predicting critical parameters of renewable energy systems, during system design is often marginally addressed and consistently underestimated. Therefore, resulting designs are fragile, with suboptimal performances when reality deviates significantly from predicted scenarios. To address this limitation, we propose an antifragile optimization framework that redefines indicator to optimize variability introduces antifragility indicator. The...

Due to their high total efficiency and flexibility, micro Gas Turbines (mGTs) offer great potential for use in small-scale distributed cogeneration applications. The economic success of this application; however, fully depends on the optimal usage system, which requires careful selection number size units system specific operating strategy. This is only possible if performance each individual unit known precisely. However, real world conditions, parameters determining operation an mGT are...

Abstract The growing share of wind and solar power in the total energy mix has caused severe problems balancing electrical production. Consequently, future, all fossil fuel-based electricity generation will need to be run on a completely flexible basis. Microgas turbines (mGTs) constitute mature technology which can offer such flexibility. Even though their greenhouse gas emissions are already very low, stringent carbon reduction targets require them neutral: this constraint implies adoption...

Abstract Energy crops on marginal lands are seen as an interesting option to increase biomass contribution the primary energy mix. However, in literature there is currently a lack of integrated assessments margin land availability, crop production potential and supply chain optimisation. Assessing cost these resources given region therefore difficult task. This work also emphasises importance clear definition discussion about related ethical issues embedded concept ensure positive societal...

The assessment of the future thermodynamics performance a retrofitted heat and power production unit is prone to many uncertainties due large number parameters involved in modeling all its components. To carry out uncertainty quantification analysis, alternatives traditional Monte Carlo method must be used stochastic dimension problem. In this paper, sparse polynomial chaos expansion (SPCE) applied retrofit coal-fired plant into biomass-fired combined quantify main drivers overall on plant’s...

To solve the problem of large time shifts between renewable energy supply and user demand, power-to-H2 is a well-known option. In this framework, previous studies have shown that direct coupling photovoltaic array with an electrolyzer stack viable solution. However, these assumed perfectly known operating parameters to optimize setup. Moreover, they focused on maximizing hydrogen minimizing loss, while cost was not addressed. We performed optimization including uncertainty quantification...

Abstract Cycle humidification applied to micro gas turbines (mGTs) offers a solution overcome their limited operational flexibility in terms of variable electrical and thermal power production when used combined heat (CHP) application. Although the positive impact this cycle on performance has already been proven numerically experimentally, very detailed modeling system remains challenging, especially determination recuperator effectiveness, which highest final performance. Indeed, depends...

<title>Abstract</title> In pursuit of reducing greenhouse gas emissions, the European Union plans to annually import ten million tonnes renewable hydrogen. While economic viability hydrogen importation is established, environmental assessments are limited comparisons and lack an evaluation absolute sustainability. Therefore, we conducted a multi-objective optimization sustainability assessment with respect planetary boundaries under current conditions future scenarios, considering hydrogen,...

Improved management and impermeability of refrigerants is a leading solution to reverse global warming. Therefore, crank-driven reciprocating refrigerator compressors are gradually replaced by more efficient, oil-free hermetic linear compressors. However, the design operation an electromagnetic actuator, fitted on compression requirements compressor, received limited attention. Current research mainly focuses optimisation short stroke compressors, while long benefit from higher isentropic...

Abstract The growing share of wind and solar power in the total energy mix has caused severe problems balancing electrical production. Consequently, future, all fossil fuel-based electricity generation will need to be run on a completely flexible basis. Micro Gas Turbines (mGTs) constitutes mature technology which can offer such flexibility. Even though their greenhouse gas emissions are already very low, stringent carbon reduction targets require them neutral: this constraint implies...