Work

Investigating a multi-generational energy system incorporating an OTEC cycle, solar collector, and wind turbine: Six E analysis, including energy, exergy, exergoenvironmental, exergoeconomic, emergoeconomic, and emergoenvironmental

Year: 2025

Type: article

Abstract: In the context of increasing focus on renewable energy due to environmental degradation, population growth, and declining freshwater resources, this study examines a combined power generation and freshwater production system. The feasibility of integrating solar and wind energy systems is assessed using EES software, with sensitivity analysis identifying optimal input parameters for the organic cycle fluid. Results show that increasing solar collector area, solar radiation, pinch point temperature, and wind speed improves performance initially, but leads to higher exergy destruction, environmental impact, and economic costs. Therefore, identifying optimal values for each parameter is essential for overall system optimization. Exergoeconomic and exergoenvironmental analyses indicate that the lowest economic exergy coefficient is associated with closed heater equipment, while the lowest exergoenvironmental factor is linked to the Rankine condenser. The total economic cost, environmental impact, and energy-based cost and impact rates for January are reported as 373.1 ($/h), 2.184 ($/h), 3.962×1014 (Sej/h), and 4.022×1016 (Sej/h), respectively.

Source: Materials Today Sustainability

DOI: 10.1016/j.mtsust.2025.101097

Authors: Hadi Kamfar, Abolfazl Shojaeian, Jaber Yousefi Seyf, Najmeh Hajialigol

Institution: Hamedan University of Technology

Language: English

Topic: Thermodynamic and Exergetic Analyses of Power and Cooling Systems

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action, Responsible consumption and production, Clean water and sanitation

Open Access status: gold

Estimated APC paid: $2,530