scholarly journals Final Technical Report: Using Solid Particles as Heat Transfer Fluid for use in Concentrating Solar Power (CSP) Plants

2016 ◽  
Author(s):  
Aaron Lattanzi ◽  
Christine Hrenya
Keyword(s):  
Heat Transfer ◽  
Solar Power ◽  
Solid Particles ◽  
Heat Transfer Fluid ◽  
Concentrating Solar Power ◽  
Technical Report

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.

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.

scholarly journals Comparative Modeling of a Parabolic Trough Collectors Solar Power Plant with MARS Models

Energies ◽  
2017 ◽  
Vol 11 (1) ◽  
pp. 37 ◽  
Author(s):  
Jose Rogada ◽  
Lourdes Barcia ◽  
Juan Martinez ◽  
Mario Menendez ◽  
Francisco de Cos Juez
Keyword(s):  
Heat Transfer ◽  
Water Vapor ◽  
Power Plant ◽  
Solar Radiation ◽  
Thermal Energy ◽  
Power Plants ◽  
Solar Power ◽  
Rankine Cycle ◽  
Heat Transfer Fluid ◽  
Solar Field

Power plants producing energy through solar fields use a heat transfer fluid that lends itself to be influenced and changed by different variables. In solar power plants, a heat transfer fluid (HTF) is used to transfer the thermal energy of solar radiation through parabolic collectors to a water vapor Rankine cycle. In this way, a turbine is driven that produces electricity when coupled to an electric generator. These plants have a heat transfer system that converts the solar radiation into heat through a HTF, and transfers that thermal energy to the water vapor heat exchangers. The best possible performance in the Rankine cycle, and therefore in the thermal plant, is obtained when the HTF reaches its maximum temperature when leaving the solar field (SF). In addition, it is necessary that the HTF does not exceed its own maximum operating temperature, above which it degrades. The optimum temperature of the HTF is difficult to obtain, since the working conditions of the plant can change abruptly from moment to moment. Guaranteeing that this HTF operates at its optimal temperature to produce electricity through a Rankine cycle is a priority. The oil flowing through the solar field has the disadvantage of having a thermal limit. Therefore, this research focuses on trying to make sure that this fluid comes out of the solar field with the highest possible temperature. Modeling using data mining is revealed as an important tool for forecasting the performance of this kind of power plant. The purpose of this document is to provide a model that can be used to optimize the temperature control of the fluid without interfering with the normal operation of the plant. The results obtained with this model should be necessarily contrasted with those obtained in a real plant. Initially, we compare the PID (proportional–integral–derivative) models used in previous studies for the optimization of this type of plant with modeling using the multivariate adaptive regression splines (MARS) model.

Sign in / Sign up

Export Citation Format

Share Document