Isik, MetehanSag, Nagihan BilirBilir Sağ, Nagihan2026-04-102026-04-1020262215-0986https://hdl.handle.net/20.500.13091/13120https://doi.org/10.1016/j.jestch.2026.102323The design of energy-efficient systems has become a central focus in recent years due to the growing demand for sustainable and environmentally friendly technologies. Efforts toward developing approaches that enhance energy production while simultaneously reducing consumption is increasing. Accordingly, utilizing geothermal heat sources for multiple purposes has gained increasing attention due to their potential to improve resource utilization and overall efficiency. However, the effective utilization of geothermal resources is still limited by their generally low-to-medium temperature levels, restricted efficiency, and the fact that most systems serve only one purpose. These issues lead to low overall resource utilization and reduced economic viability. Therefore, this study investigates a novel geothermally-driven directly combined Organic Rankine Cycle-Vapor Compression Cycle (ORC-VCC) system that simultaneously delivers power, cooling, and heating. The integrated configuration increases the fraction of geothermal heat converted into useful outputs and improves the thermodynamic and economic performance of the resource. Additionally, exergetic, economic, and environmental evaluations are essential for ensuring the sustainability of energy systems. In this study, the novel cycle has been comprehensively investigated in terms of exergy, exergoeconomic, and exergoenvironmental performance for various operating conditions. The results obtained have been compared with a reference cycle under same operating conditions. The novel cycle provides higher exergy efficiency and better exergoeconomic results under all the conditions investigated. For instance, at the geothermal heat source temperature of 110 degrees C and mass flow rate of 5 kg/s, the novel cycle provides 47.1%, 44.2% and 6.5% improvement over the reference cycle in terms of exergy efficiency, total unit cost and total unit environmental impact of products, respectively. Also, more than 25% improvement at exergy efficiency over the reference cycle is obtained at 200 kW medium temperature evaporator cooling capacity by the novel cycle.eninfo:eu-repo/semantics/openAccessGeothermalORCEnvironmentalRefrigerationExergyEconomicArticle10.1016/j.jestch.2026.1023232-s2.0-105032238412