Results 41 to 50 of about 102,561 (167)

Investigating the Impact of Seasonal Heat Storage on the Thermal and Economic Performance of a Deep Borehole Heat Exchanger: A Numerical Simulation Study

Buildings
Deep borehole heat exchanger (DBHE) is a clean and efficient technology that utilizes geothermal energy for building heating. However, continuous heat extraction from a DBHE system can lead to its performance decline over time.
Boyan Meng, Yang Zhou, Wenwen Chen, Wenxing Luo, Rui Ding, Wanlong Cai, Chaofan Chen   +6 more
doaj   +1 more source

Thermal conductivity-controlled Zn-doped MgO/Mg(OH)2 micro-structures for high-efficiency thermo-dynamic heat energy storage

Journal of Asian Ceramic Societies, 2020
Zn-doped MgO/Mg(OH)2 was used to increase thermal energy storage efficiency. Among general bulk materials, the thermal conductivity of those materials used for high-efficiency thermal energy storage should be high. In micro (or nano) structures, however,
Youngho Kim, Jaeyeong Lee, Noeul Kim, Hak Ki Yu   +3 more
doaj   +1 more source

Energy efficient refrigeration system using latent heat storage, PCM

International Journal of Thermofluids
This study examines the performance enhancement offered by a phase change material (PCM) connected to the evaporator and condenser of a household refrigerator that utilizes R134a as the refrigerant. The features of the refrigerant and its properties determine how quickly a refrigerator releases and stores heat. The use of PCM accelerates heat transfer,
Mohammad Harun-Or-Rashid, Md Tawfique Hasan, Towfiq Bin Alam, Safayet Hossain   +3 more
openaire   +2 more sources

Investigation on Melting Process of Finned Thermal Energy Storage with Rotational Actuation

Energies
Phase-change thermal storage is essential for renewable energy utilization, addressing spatiotemporal energy transfer imbalances. However, enhancing heat transfer in pure phase-change materials (PCMs) has been challenging due to their low thermal ...
Yi Liu, Xiankun Meng, Xuanzhi Lv, Junfei Guo, Xiaohu Yang   +4 more
doaj   +1 more source

Energy and Exergy Analysis of Ocean Compressed Air Energy Storage Concepts

Journal of Engineering, 2018
Optimal utilization of renewable energy resources needs energy storage capability in integration with the electric grid. Ocean compressed air energy storage (OCAES) can provide promising large-scale energy storage.
Vikram C. Patil, Paul I. Ro
doaj   +1 more source

Storage of Heat, Cold and Electricity

CHIMIA, 2015
A promising energy storage system is presented based on the combination of a heat pump, a heat engine, a hot and a cold storage. It can be operated as a pure bulk electricity storage (alternative to Pumped Heat Electrical Storage (PHES ...
Anastasia Stamatiou, Andreas Ammann, Andreas Abdon, Ludger J. Fischer, Damian Gwerder, Jörg Worlitschek   +5 more
doaj   +1 more source

Experimental Analysis of the Thermal Performance of a Latent Heat Energy of Helical Coil for the Application of Solar Energy

International Journal of Photoenergy, 2022
The latent thermal power storage system has more characteristics than the sensitive storage system. The heating system is a process of releasing and absorbing heat energy using phase transfer material (PCM) and it provides more efficient energy than ...
T. Jayakumar, S. Jaanaa Rubavathy, R. Karpagam, S. Diwakaran, S. Arockia Jayadhas, Maqusood Ahamed, Shanmugam Sureshkumar   +6 more
doaj   +1 more source

Assessment of cryogenic energy storage systems efficiency

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
This study evaluates the efficiency of cryogenic energy storage systems from energy, exergy, and economic perspectives. Cryogenic energy storage systems that store energy through gas liquefaction and regasification, offer high energy capacity but face ...
E. V. Blagin, D. A. Uglanov
doaj   +1 more source

Soil Heat Deficit Regulation-Based Cross-Seasonal Heat Storage of Medium-Deep Borehole Heat Exchanger

Buildings
Medium-deep borehole heat exchanger (MBDHE) is a clean building heating solution that offers improved indoor thermal comfort, but it risks heat extraction capacity deterioration due to insufficient geothermal heat flux recovery.
Jun Liu, Yuping Zhang, Jingyue Zhang, Ruifeng Wang, Heng Shi, Sheng Zhang, Zhaosong Fang   +6 more
doaj   +1 more source

Study on the thermal storage properties of a spiral tube heat storage tank based on numerical analysis

Frontiers in Energy Research
IntroductionThe spiral tube heat storage tank is a highly efficient device designed for storing and releasing heat, utilizing a spiral tube structure.
Li Yuna, Wang Xiaojun, Yang Yu, Wang Tao
doaj   +1 more source