Simulation Analysis of Bio-Methane Decomposition Using Solar Thermal Energy

2021 ◽  
Vol 17 (1) ◽  
pp. 40-49
Author(s):  
Haneol Kim ◽  
Sangnam Lee ◽  
Sang Jik Lee ◽  
Jongkyu Kim
Keyword(s):  
Thermal Energy ◽  
Simulation Analysis ◽  
Methane Decomposition ◽  
Solar Thermal ◽  
Solar Thermal Energy

scholarly journals Hydrogen Production in Methane Decomposition Reactor Using Solar Thermal Energy

2021 ◽  
Vol 11 (21) ◽  
pp. 10333
Author(s):  
Haneol Kim ◽  
Hakjoo Kim ◽  
Sungeun Kim ◽  
Sangnam Lee ◽  
Jongkyu Kim
Keyword(s):  
Thermal Energy ◽  
Metal Foam ◽  
Methane Decomposition ◽  
Solar Thermal ◽  
Solar Furnace ◽  
Solar Thermal Energy ◽  
Coating Application ◽  
Type Reactor ◽  
Barrier Coating ◽  
Conversion Rates

This study investigates the decomposition of methane using solar thermal energy as a heat source. Instead of the direct thermal decomposition of the methane at a temperature of 1200 °C or higher, a catalyst coated with carbon black on a metal foam was used to lower the temperature and activation energy required for the reaction, and to increase the yield. To supply solar heat during the reaction, a reactor suitable for a solar concentrating system was developed. In this process, a direct heating type reactor with quartz was initially applied, and a number of problems were identified. An indirect heating type reactor with an insulated cavity and a rotating part was subsequently developed, followed by a thermal barrier coating application. Methane decomposition experiments were conducted in a 40 kW solar furnace at the Korea Institute of Energy Research. Conversion rates of 96.7% and 82.6% were achieved when the methane flow rate was 20 L/min and 40 L/min, respectively.

Pyrazolium Phase Change Materials for Solar-Thermal and Wind Energy Storage

2019 ◽  
Author(s):  
Karolina Matuszek ◽  
R. Vijayaraghavan ◽  
Craig Forsyth ◽  
Surianarayanan Mahadevan ◽  
Mega Kar ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Phase Change Materials ◽  
High Efficiency ◽  
Scale Up ◽  
Solar Thermal ◽  
Energy Storage Materials ◽  
Solar Thermal Energy ◽  
Storage Materials

Renewable energy has the ultimate capacity to resolve the environmental and scarcity challenges of the world’s energy supplies. However, both the utility of these sources and the economics of their implementation are strongly limited by their intermittent nature; inexpensive means of energy storage therefore needs to be part of the design. Distributed thermal energy storage is surprisingly underdeveloped in this context, in part due to the lack of advanced storage materials. Here, we describe a novel family of thermal energy storage materials based on pyrazolium cation, that operate in the 100-220°C temperature range, offering safe, inexpensive capacity, opening new pathways for high efficiency collection and storage of both solar-thermal energy, as well as excess wind power. We probe the molecular origins of the high thermal energy storage capacity of these ionic materials and demonstrate extended cycling that provides a basis for further scale up and development.

An oil shale recovery system powered by solar thermal energy

Energy ◽  
2021 ◽  
Vol 225 ◽  
pp. 120096
Author(s):  
Hongjuan Hou ◽  
Qiongjie Du ◽  
Chang Huang ◽  
Le Zhang ◽  
Eric Hu
Keyword(s):  
Thermal Energy ◽  
Oil Shale ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Recovery System ◽  
Shale Recovery
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