scholarly journals How heat pumps and thermal energy storage can be used to manage wind power: A study of Ireland

Energy ◽  
2018 ◽  
Vol 157 ◽  
pp. 539-549 ◽  
Author(s):  
Inna Vorushylo ◽  
Patrick Keatley ◽  
Nikhilkumar Shah ◽  
Richard Green ◽  
Neil Hewitt
Keyword(s):  
Energy Storage ◽  
Wind Power ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Heat Pumps

scholarly journals Optimized Layouts of Borehole Thermal Energy Storage Systems in 4th Generation Grids

Energies ◽  
2020 ◽  
Vol 13 (17) ◽  
pp. 4405 ◽  
Author(s):  
Hoofar Hemmatabady ◽  
Julian Formhals ◽  
Bastian Welsch ◽  
Daniel Otto Schulte ◽  
Ingo Sass
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Heating Temperature ◽  
Storage System ◽  
District Heating ◽  
Temperature Shift ◽  
Heat Pumps ◽  
Optimal Designs ◽  
Practical Implementation

Borehole thermal energy storage (BTES) systems are a viable option to meet the increasing cooling demand and to increase the sustainability of low-temperature district heating and cooling (DHC) grids. They are able to store the rejected heat of cooling cycles on a seasonal basis and deliver this heat during the heating season. However, their efficient practical implementation requires a thorough analysis from technical, economic and environmental points of view. In this comparative study, a dynamic exergoeconomic assessment is adopted to evaluate various options for integrating such a storage system into 4th generation DHC grids in heating dominated regions. For this purpose, different layouts are modeled and parameterized. Multi-objective optimization is conducted, varying the most important design variables in order to maximize exergetic efficiency and to minimize levelized cost of energy (LCOE). A comparison of the optimal designs of the different layouts reveals that passive cooling together with maximizing the heating temperature shift, accomplished by a heat pump, lead to optimal designs. Component-wise exergy and cost analysis of the most efficient designs highlights that heat pumps are responsible for the highest share in inefficiency while the installation of BTES has a high impact in the LCOE. BTES and buffer storage tanks have the lowest exergy destruction for all layouts and increasing the BTES volume results in more efficient DHC grids.

Active and Passive Thermal Energy Storage in Combined Heat and Power Plants to Promote Wind Power Accommodation

2017 ◽  
Vol 143 (5) ◽  
pp. 04017037 ◽  
Author(s):  
Yuanhang Dai ◽  
Lei Chen ◽  
Yong Min ◽  
Qun Chen ◽  
Yiwei Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Wind Power ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Power Plants ◽  
Combined Heat And Power

scholarly journals A Wind Power Plant with Thermal Energy Storage for Improving the Utilization of Wind Energy

Energies ◽  
2017 ◽  
Vol 10 (12) ◽  
pp. 2126 ◽  
Author(s):  
Chang Liu ◽  
Mao-Song Cheng ◽  
Bing-Chen Zhao ◽  
Zhi-Min Dai
Keyword(s):  
Energy Storage ◽  
Power Plant ◽  
Wind Energy ◽  
Wind Power ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Wind Power Plant

scholarly journals A Fast-Reduced Model for an Innovative Latent Thermal Energy Storage for Direct Integration in Heat Pumps

2021 ◽  
Vol 11 (19) ◽  
pp. 8972
Author(s):  
Valeria Palomba ◽  
Andrea Frazzica
Keyword(s):  
Heat Transfer ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Heat Pumps ◽  
Heat Transfer Fluid ◽  
Direct Integration ◽  
Storage Unit ◽  
Energy Storage Unit ◽  
Operating Modes

In the present paper, the numerical modeling of an innovative latent thermal energy storage unit, suitable for direct integration into the condenser or evaporator of a heat pump is presented. The Modelica language, in the Dymola environment, and TIL libraries were used for the development of a modular model, which is easily re-usable and adaptable to different configurations. Validation of the model was carried out using experimental data under different operating modes and it was subsequently used for the optimization of a design for charging and discharge. In particular, since the storage unit is made up of parallel channels for the heat transfer fluid, refrigerant, and phase change material, their number and distribution were changed to evaluate the effect on heat transfer performance.

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