scholarly journals Phenylnaphthalene as a Heat Transfer Fluid for Concentrating Solar Power: High-Temperature Static Experiments

2012 ◽  
Author(s):  
Jason R Bell ◽  
Robert Anthony Joseph III ◽  
Joanna McFarlane ◽  
A L Qualls
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Solar Power ◽  
Heat Transfer Fluid ◽  
Concentrating Solar Power

scholarly journals Containment materials for liquid tin at 1350 °C as a heat transfer fluid for high temperature concentrated solar power

Solar Energy ◽  
2018 ◽  
Vol 164 ◽  
pp. 47-57 ◽  
Author(s):  
Yunshu Zhang ◽  
Ye Cai ◽  
SungHwan Hwang ◽  
Gregory Wilk ◽  
Freddy DeAngelis ◽  
...  
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Solar Power ◽  
Heat Transfer Fluid ◽  
Concentrated Solar Power ◽  
Liquid Tin

Streamlining the Power Generation Profile of Concentrating Solar Power Plants

2018 ◽  
Author(s):  
Mohammad Abutayeh ◽  
Anas Alazzam ◽  
Bashar El-Khasawneh
Keyword(s):  
Heat Transfer ◽  
Power Generation ◽  
Power Plants ◽  
Solar Power ◽  
Heat Transfer Fluid ◽  
Concentrating Solar Power ◽  
Transfer Rates ◽  
Power Block ◽  
Solar Power Plants ◽  
Solar Field

A scheme to streamline the electric power generation profile of concentrating solar power plants of the parabolic trough collector type is suggested. The scheme seeks to even out heat transfer rates from the solar field to the power block by splitting the typical heat transfer fluid loop into two loops using an extra vessel and an extra pump. In the first loop, cold heat transfer fluid is pumped by the cold pump from the cold vessel to the solar field to collect heat before accumulating in the newly introduced hot vessel. In the second loop, hot heat transfer fluid is pumped by the hot pump from the hot vessel to a heat exchanger train to supply the power block with its heat load before accumulating in the cold vessel. The new scheme moderately decouples heat supply from heat sink allowing for more control of heat delivery rates thereby evening out power generation.

scholarly journals Analysis of a Fluidized-Bed Particle/Supercritical-CO2 Heat Exchanger in a Concentrating Solar Power System

2020 ◽  
Vol 143 (3) ◽  
Author(s):  
Zhiwen Ma ◽  
Janna Martinek
Keyword(s):  
Heat Transfer ◽  
High Temperature ◽  
Heat Exchanger ◽  
Fluidized Bed ◽  
High Efficiency ◽  
Solar Power ◽  
Concentrating Solar Power ◽  
Power Cycle ◽  
Temperature Heat ◽  
The Cost

Abstract Concentrating solar power (CSP) development has focused on increasing the energy conversion efficiency and lowering the capital cost. To improve performance, CSP research is moving to high-temperature and high-efficiency designs. One technology approach is to use inexpensive, high-temperature heat transfer fluids and storage, integrated with a high-efficiency power cycle such as the supercritical carbon dioxide (sCO2) Brayton power cycle. The sCO2 Brayton power cycle has strong potential to achieve performance targets of 50% thermal-to-electric efficiency and dry cooling at an ambient temperature of up to 40 °C and to reduce the cost of power generation. Solid particles have been proposed as a possible high-temperature heat transfer or storage medium that is inexpensive and stable at high temperatures above 1000 °C. The particle/sCO2 heat exchanger (HX) provides a connection between the particles and sCO2 fluid in emerging sCO2 power cycles. This article presents heat transfer modeling to analyze the particle/sCO2 HX design and assess design tradeoffs including the HX cost. The heat transfer process was modeled based on a particle/sCO2 counterflow configuration, and empirical heat transfer correlations for the fluidized bed and sCO2 were used to calculate heat transfer area and estimate the HX cost. A computational fluid dynamics simulation was applied to characterize particle distribution and fluidization. This article shows a path to achieve the cost and performance objectives for a particle/sCO2 HX design by using fluidized-bed technology.

On the enhancement of heat transfer fluid for concentrating solar power using Cu and Ni nanofluids: An experimental and molecular dynamics study

Nano Energy ◽  
2016 ◽  
Vol 27 ◽  
pp. 213-224 ◽  
Author(s):  
Javier Navas ◽  
Antonio Sánchez-Coronilla ◽  
Elisa I. Martín ◽  
Miriam Teruel ◽  
Juan Jesús Gallardo ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Molecular Dynamics ◽  
Solar Power ◽  
Heat Transfer Fluid ◽  
Concentrating Solar Power ◽  
Enhancement Of Heat Transfer

Development of Molten Salt Heat Transfer Fluid With Low Melting Point and High Thermal Stability

2011 ◽  
Vol 133 (3) ◽  
Author(s):  
Justin W. Raade ◽  
David Padowitz
Keyword(s):  
Heat Transfer ◽  
Thermal Stability ◽  
Melting Point ◽  
Molten Salt ◽  
Solar Power ◽  
Stability Limit ◽  
High Thermal Stability ◽  
Operating Conditions ◽  
Heat Transfer Fluid ◽  
Concentrating Solar Power

This paper describes an advanced heat transfer fluid (HTF) consisting of a novel mixture of inorganic salts with a low melting point and high thermal stability. These properties produce a broad operating range molten salt and enable effective thermal storage for parabolic trough concentrating solar power plants. Previous commercially available molten salt heat transfer fluids have a high melting point, typically 140 °C or higher, which limits their commercial use due to the risk of freezing. The advanced HTF embodies a novel composition of materials, consisting of a mixture of nitrate salts of lithium, sodium, potassium, cesium, and calcium. This unique mixture exploits eutectic behavior resulting in a low melting point of 65 °C and a thermal stability limit over 500 °C. The advanced HTF described in this work was developed using advanced experiment design and data analysis methods combined with a powerful high throughput experimental workflow. Over 5000 unique mixtures of inorganic salt were tested during the development process. Additional work is ongoing to fully characterize the relevant thermophysical properties of the HTF and to assess its long term performance in realistic operating conditions for concentrating solar power applications or other high temperature processes.

Streamlining the Power Generation Profile of Concentrating Solar Power Plants

2019 ◽  
Vol 141 (2) ◽  
Author(s):  
Mohammad Abutayeh ◽  
Kwangkook Jeong ◽  
Anas Alazzam ◽  
Bashar El-Khasawneh
Keyword(s):  
Heat Transfer ◽  
Power Generation ◽  
Power Plants ◽  
Solar Power ◽  
Heat Transfer Fluid ◽  
Concentrating Solar Power ◽  
Transfer Rates ◽  
Power Block ◽  
Solar Power Plants ◽  
Solar Field

A scheme to streamline the electric power generation profile of concentrating solar power (CSP) plants of the parabolic trough collector (PTC) type is suggested. The scheme seeks to even out heat transfer rates from the solar field (SF) to the power block (PB) by splitting the typical heat transfer fluid (HTF) loop into two loops using an extra vessel and an extra pump. In the first loop, cold HTF is pumped by the cold pump from the cold vessel to the SF to collect heat before accumulating in the newly introduced hot vessel. In the second loop, hot HTF is pumped by the hot pump from the hot vessel to a heat exchanger train (HXT) to supply the PB with its heat load before accumulating in the cold vessel. The new scheme moderately decouples heat supply from heat sink allowing for more control of heat delivery rates thereby evening out power generation.

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