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.

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.

scholarly journals Study of a novel hybrid refrigeration system for industrial waste heat recovery

2019 ◽  
Vol 158 ◽  
pp. 2196-2201 ◽  
Author(s):  
Yiji Lu ◽  
Anthony Paul Roskilly ◽  
Rui Huang ◽  
Xiaoli Yu
Keyword(s):  
Industrial Waste ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Refrigeration System ◽  
Industrial Waste Heat

Brayton Cycle Supercritical CO2 Power Block for Industrial Waste Heat Recovery

2019 ◽  
Author(s):  
Sharath Sathish ◽  
Pramod Kumar ◽  
Logesh Nagarathinam ◽  
Lokesh Swami ◽  
Adi Narayana Namburi ◽  
...  
Keyword(s):  
Industrial Waste ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Rankine Cycle ◽  
Coke Oven ◽  
Brayton Cycle ◽  
Steam Power ◽  
Power Block ◽  
Industrial Waste Heat

Abstract The Brayton cycle based supercritical CO2 (sCO2) power plant is an emerging technology with benefits such as; higher cycle efficiency, smaller component sizes, reduced plant footprint, lower water usage, etc. There exists a high potential for its applicability in waste heat recovery cycles, either as bottoming cycles for gas turbines in a combined cycle or for industrial waste heat recovery in process industries such as iron & steel, cement, paper, glass, textile, fertilizer and food manufacturing. Conventionally steam Rankine cycle is employed for the gas turbine and industrial waste heat recovery applications. The waste heat recovery from a coke oven plant in an iron & steel industry is considered in this paper due to the high temperature of the waste heat and the technological expertise that exists in the author’s company, which has supplied over 50 steam turbines/ power blocks across India for various steel plants. An effective comparison between steam Rankine cycle and sCO2 Brayton cycle is attempted with the vast experience of steam power block technology and extending the high pressure-high temperature steam turbine design practices to the sCO2 turbine while also introducing the design of sCO2 compressor. The paper begins with an analysis of sCO2 cycles, their configurations for waste heat recovery and its comparison to a working steam cycle producing 15 MW net power in a coke oven plant. The sCO2 turbomachinery design follows from the boundary conditions imposed by the cycle and iterated with the cycle analysis for design point convergence. The design of waste heat recovery heat exchanger and other heat exchangers of the sCO2 cycle are not in the scope of this analysis. The design emphasis is on the sCO2 compressor and turbine that make up the power block. This paper highlights the design of a sCO2 compressor and turbine beginning from the specific speed-specific diameter (Ns-Ds) charts, followed by the meanline design. Subsequently, a detailed performance map is generated. The relevance of this paper is underscored by the first of a kind design and comparative analysis of a Brayton sCO2 power block with a working Steam Power block for the waste heat recovery in the energy intensive iron and steel industry.

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