Enhanced specific heat capacity of binary chloride salt by dissolving magnesium for high-temperature thermal energy storage and transfer

2017 ◽  
Vol 5 (28) ◽  
pp. 14811-14818 ◽  
Author(s):  
Heqing Tian ◽  
Lichan Du ◽  
Chenglong Huang ◽  
Xiaolan Wei ◽  
Jianfeng Lu ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Industrial Waste ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Chloride Salt ◽  
Industrial Waste Heat ◽  
Significant Attention

Thermal energy storage and transfer technology has received significant attention with respect to concentrating solar power (CSP) and industrial waste heat recovery systems.

A Product-Service System for Industrial Waste Heat Recovery Using Mobile Latent Heat Accumulators

2011 ◽  
Author(s):  
M. Ko¨ster ◽  
T. Sadek
Keyword(s):  
Latent Heat ◽  
Thermal Energy ◽  
Industrial Waste ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Service System ◽  
Waste Heat ◽  
Product Service System ◽  
Product Service ◽  
Industrial Waste Heat

To operate industrial processes like the generation of hot water and steam or the melting and heat treatment of materials, thermal energy is usually required. In all these processes, a waste of thermal energy occurs, which is referred to as industrial waste heat. In order to reduce the primary energy consumption and environmental impacts due to CO2 emissions, the wasted energy should be recovered efficiently. Different technologies to reuse industrial waste heat for other applications exist. Companies interested in applying these technologies are confronted with risks and uncertainties, such as the lack of knowledge in this field of technology and risks involved with investments in these technologies. Due to these risks and uncertainties, the potential of existing technologies for industrial waste heat recovery is not realized sufficiently. The aim of this article is to discuss a Product-Service System (PSS) that is adequate for a flexible, sustainable and profitable waste heat recovery. This solution is based on the storage, transportation and utilization of industrial waste heat via mobile phase change material devices. Based on the introduction, existing and established concepts for waste heat recovery as well as the theoretical fundamentals of the Product-Service System approach and latent heat accumulators are described. Afterwards, the PSS concept for waste heat utilization is presented. In particular, appropriate business models are introduced for this solution.

scholarly journals Application of Borehole Thermal Energy Storage in Waste Heat Recovery from Diesel Generators in Remote Cold Climate Locations

Energies ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 656 ◽  
Author(s):  
Seyed Ghoreishi-Madiseh ◽  
Ali Fahrettin Kuyuk ◽  
Marco Rodrigues de Brito ◽  
Durjoy Baidya ◽  
Zahra Torabigoodarzi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Storage System ◽  
Thermal Storage ◽  
Cold Climate ◽  
Diesel Generators

Remote communities that have limited or no access to the power grid commonly employ diesel generators for communal electricity provision. Nearly 65% of the overall thermal energy input of diesel generators is wasted through exhaust and other mechanical components such as water-jackets, intercoolers, aftercoolers, and friction. If recovered, this waste heat could help address the energy demands of such communities. A viable solution would be to recover this heat and use it for direct heating applications, as conversion to mechanical power comes with significant efficiency losses. Despite a few examples of waste heat recovery from water-jackets during winter, this valuable thermal energy is often discarded into the atmosphere during the summer season. However, seasonal thermal energy storage techniques can mitigate this issue with reliable performance. Storing the recovered heat from diesel generators during low heat demand periods and reusing it when the demand peaks can be a promising alternative. At this point, seasonal thermal storage in shallow geothermal reserves can be an economically feasible method. This paper proposes the novel concept of coupling the heat recovery unit of diesel generators to a borehole seasonal thermal storage system to store discarded heat during summer and provide upgraded heat when required during the winter season on a cold, remote Canadian community. The performance of the proposed ground-coupled thermal storage system is investigated by developing a Computational Fluid Dynamics and Heat Transfer model.

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