20.500.12556/RUL-170838 Fewer temperature ties scalable integration and broad selection of phase change materials for both heating and cooling The change of seasons necessitates alternate heating and cooling systems, which are indispensable for nearly a third of the global population. Integrating latent thermal energy storage (LTES) and heat pumps (HPs) is gaining attention within the context of renewable energy strategies. However, fulfilling both heating and cooling requirements often requires the combined utilization of several tailored storage units, potentially escalating financial burdens and materials customization challenges related to scalability. Here, an intermediate latent thermal storage solution for dual-season usage is proposed. Combined with a double-effect quasi-two-stage heat pump, wide-temperature-range phase change materials are used in both heat and cold storage. Targeting global areas with seasonal heating and cooling demands, preferred materials are selected from 90 PCMs for 51 countries per region and 95 subnational areas. Through high-throughput screening, materials exhibiting phase change temperatures between 10.5 and 22 °C are pinpointed. In Arkansas, Beijing, Minnesota, and Shanghai, a significant enhancement in demand-oriented energy supply strategies is noted through deploying this system. The annual coefficient of performance enhancement yields an increment of 11.73% to 21.99%, compared to non-integrated heat pumps, and up to 51.31% versus separate heat and cold storage systems. Significantly, this integrated system overcomes cost barriers while minimizing land occupation, and exhibits great resilience amidst global climate change. These findings exemplify its scalable adaptability and potential in global areas, unveiling a global seasonal heating and cooling strategy for the first time and offering insights into alleviating global heating and cooling poverty. heating and cooling heat pumps latent heat storage energy efficiency coefficient of performance ogrevanje in hlajenje toplotne črpalke latentno shranjevanje toplote energetska učinkovitost grelno število hladilno število true false true Angleški jezik Slovenski jezik Članek v reviji 2025-07-18 04:27:24 2026-05-15 09:07:27 2026-05-16 04:59:39 0000-00-00 00:00:00 2025 0 0 11 str. issue 5 Vol. 18 2025 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.9:687 1754-5706 10.1039/d4ee04223a 242944515 RAZ_Kou_Xiaoxue_2025.pdf RAZ_Kou_Xiaoxue_2025.pdf 1 D80A2AA7E08F3B90BD73402ED1601A0B 0db2202d9fcbf70c0af6ad5e1def7c575562aa0564a84ec25dfd9f479a821139 f1047330-63c2-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=213124 https://pubs.rsc.org/en/content/articlelanding/2025/ee/d4ee04223a 1 c3ed4b73-637e-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=213097 Fakulteta za strojništvo 0 0 0