Aug 2026· Advanced Electromagnetics· Vol 15, pp. 7737-7741· 0 citations· 10 references
Abstract
Improving renewable-energy utilization and building energy efficiency is essential for achieving low-carbon building operation in cold regions. To address the mismatch between solar-energy availability and seasonal heating demand, this study proposes a cross-seasonal thermal-storage optimization framework for a solar–air-source heat-pump coupled system. A coordinated operation architecture integrating solar collectors, phase-change thermal-storage units, and air-source heat pumps is established. Dynamic meteorological information and building-load forecasting are incorporated into a multi-source energy-management model, while heat-flow optimization and fuzzy-control strategies are employed to regulate thermal-storage temperature and heat-pump operating status adaptively. Experimental results demonstrate that the proposed system increases solar-energy utilization to 62.2%, reduces annual energy consumption by approximately 27.6%, and achieves a corresponding reduction in carbon emissions. The study provides an effective solution for intelligent building-energy management and offers methodological references for energysystem optimization, environmental monitoring, and smart energy networks.
Given the significant decrease in the efficiency of air-source heat pumps (ASHPs) during winter and the intermittency and instability of solar heating output, which seriously affect the system performance, this paper presents a novel solar-assisted heat pump system with dual energy storage (DES-SAHP). The system is com...
Jie Lin, Chao-Jie Ren, Ni-Ni Guo et al.· Energies· 0 citations
Under the energy transition, renewable intermittency poses a challenge to supply–demand matching. Buildings possess thermal inertia that can serve as virtual storage. This study proposed a capacity-operation co-optimization model for a heating-season-integrated energy system, integrating building thermal inertia with t...
To address the soil thermal imbalance and energy performance degradation caused by long-term operation of ground source heat pump (GSHP) systems in hot-summer/cold-winter regions such as Chongqing, this study proposes a hybrid heat exchange strategy that coordinates short- and long-cycle thermal regulation. On the long...
Yong-Ping Yu, Yun-Kui Ye, Xing-Hua Yang et al.· Buildings· 0 citations
: Under China’s dual-carbon goals, integrating renewable energy sources such as wind and solar power provides an effective pathway for the low-carbon transition of coking plants. However, renewable-generation variability may cause energy supply–demand imbalances. Meanwhile, coke oven gas (COG) and associated industrial...
Xiaoming Zhang, Baozhou Ding, Haojie Cheng et al.· Energy Engineering· 0 citations
Seasonal energy storage effectively addresses seasonal electricity supply–demand imbalances. This study proposes a cross-seasonal compressed air energy storage system using a depleted gas reservoir as the storage reservoir. A six-stage compression–expansion system with intercooling and reheating is designed. Also, the...
Solar ejector refrigeration can reduce building cooling electricity demand by utilizing low- and medium-temperature solar heat, but its performance is sensitive to solar radiation and ambient temperature. To improve off-design performance, this study developed a TRNSYS-EES dynamic model of a solar ejector-compression h...
