Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores

Jingxiao Han, Ben Xu, Peiwen Li, Anurag Kumar, Yongping Yang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Because of the capability of large capacity thermal storage, concentrated solar power (CSP) technology is getting more attentions in the recent years. The energy storage allows power generation using solar energy during the late afternoon and evening time. For a large capacity of thermal energy storage, a dual-media system is typically adopted for reducing the use of the heat transfer fluid (HTF), which is usually expensive. In a dual-media system, the solid material must have large heat capacity and be inexpensive. One type of configuration for a dual-media system is that HTF flowing in pipes which are imbedded into the solid material. The present study considers sands, a major component of concrete, as low-cost solid thermal storage materials. The novel approach is that the sand is saturated with high thermal conductive fluid. Compared to using concrete for thermal storage, this method avoids issues of heat transfer degradation associated with the mismatch of thermal expansion of pipes and concrete. Since only sands are porous materials and the heat transfer performance is low, a high conductive fluid (XCELTHERM® 600 hot oil) was used to saturate sands, which then forms a new thermal storage material that can have better heat transfer. Results of thermal storage process with sands only and with the oil-saturated sands are presented and discussed.

Original languageEnglish (US)
Title of host publicationASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
PublisherAmerican Society of Mechanical Engineers (ASME)
Volume6B
DOIs
StatePublished - 2014
EventASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014 - Montreal, Canada
Duration: Nov 14 2014Nov 20 2014

Other

OtherASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014
CountryCanada
CityMontreal
Period11/14/1411/20/14

Fingerprint

Sand
Fluids
Heat transfer
Concretes
Energy storage
Specific heat
Solar power generation
Pipe
Thermal energy
Solar energy
Thermal expansion
Porous materials
Hot Temperature
Degradation
Costs
Oils

Keywords

  • CSP
  • Dual-media
  • HTF-saturated sands
  • Sands
  • Sensible heat storage
  • Thermocline

ASJC Scopus subject areas

  • Mechanical Engineering

Cite this

Han, J., Xu, B., Li, P., Kumar, A., & Yang, Y. (2014). Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) (Vol. 6B). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201438999

Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores. / Han, Jingxiao; Xu, Ben; Li, Peiwen; Kumar, Anurag; Yang, Yongping.

ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 6B American Society of Mechanical Engineers (ASME), 2014.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Han, J, Xu, B, Li, P, Kumar, A & Yang, Y 2014, Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores. in ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). vol. 6B, American Society of Mechanical Engineers (ASME), ASME 2014 International Mechanical Engineering Congress and Exposition, IMECE 2014, Montreal, Canada, 11/14/14. https://doi.org/10.1115/IMECE201438999
Han J, Xu B, Li P, Kumar A, Yang Y. Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores. In ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 6B. American Society of Mechanical Engineers (ASME). 2014 https://doi.org/10.1115/IMECE201438999
Han, Jingxiao ; Xu, Ben ; Li, Peiwen ; Kumar, Anurag ; Yang, Yongping. / Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores. ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE). Vol. 6B American Society of Mechanical Engineers (ASME), 2014.
@inproceedings{75c0bed4aa9f42e0be2642f4d9ba4604,
title = "Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores",
abstract = "Because of the capability of large capacity thermal storage, concentrated solar power (CSP) technology is getting more attentions in the recent years. The energy storage allows power generation using solar energy during the late afternoon and evening time. For a large capacity of thermal energy storage, a dual-media system is typically adopted for reducing the use of the heat transfer fluid (HTF), which is usually expensive. In a dual-media system, the solid material must have large heat capacity and be inexpensive. One type of configuration for a dual-media system is that HTF flowing in pipes which are imbedded into the solid material. The present study considers sands, a major component of concrete, as low-cost solid thermal storage materials. The novel approach is that the sand is saturated with high thermal conductive fluid. Compared to using concrete for thermal storage, this method avoids issues of heat transfer degradation associated with the mismatch of thermal expansion of pipes and concrete. Since only sands are porous materials and the heat transfer performance is low, a high conductive fluid (XCELTHERM{\circledR} 600 hot oil) was used to saturate sands, which then forms a new thermal storage material that can have better heat transfer. Results of thermal storage process with sands only and with the oil-saturated sands are presented and discussed.",
keywords = "CSP, Dual-media, HTF-saturated sands, Sands, Sensible heat storage, Thermocline",
author = "Jingxiao Han and Ben Xu and Peiwen Li and Anurag Kumar and Yongping Yang",
year = "2014",
doi = "10.1115/IMECE201438999",
language = "English (US)",
volume = "6B",
booktitle = "ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)",
publisher = "American Society of Mechanical Engineers (ASME)",

}

TY - GEN

T1 - Experimental study of a novel thermal storage system using sands with high-conductive fluids occupying the pores

AU - Han, Jingxiao

AU - Xu, Ben

AU - Li, Peiwen

AU - Kumar, Anurag

AU - Yang, Yongping

PY - 2014

Y1 - 2014

N2 - Because of the capability of large capacity thermal storage, concentrated solar power (CSP) technology is getting more attentions in the recent years. The energy storage allows power generation using solar energy during the late afternoon and evening time. For a large capacity of thermal energy storage, a dual-media system is typically adopted for reducing the use of the heat transfer fluid (HTF), which is usually expensive. In a dual-media system, the solid material must have large heat capacity and be inexpensive. One type of configuration for a dual-media system is that HTF flowing in pipes which are imbedded into the solid material. The present study considers sands, a major component of concrete, as low-cost solid thermal storage materials. The novel approach is that the sand is saturated with high thermal conductive fluid. Compared to using concrete for thermal storage, this method avoids issues of heat transfer degradation associated with the mismatch of thermal expansion of pipes and concrete. Since only sands are porous materials and the heat transfer performance is low, a high conductive fluid (XCELTHERM® 600 hot oil) was used to saturate sands, which then forms a new thermal storage material that can have better heat transfer. Results of thermal storage process with sands only and with the oil-saturated sands are presented and discussed.

AB - Because of the capability of large capacity thermal storage, concentrated solar power (CSP) technology is getting more attentions in the recent years. The energy storage allows power generation using solar energy during the late afternoon and evening time. For a large capacity of thermal energy storage, a dual-media system is typically adopted for reducing the use of the heat transfer fluid (HTF), which is usually expensive. In a dual-media system, the solid material must have large heat capacity and be inexpensive. One type of configuration for a dual-media system is that HTF flowing in pipes which are imbedded into the solid material. The present study considers sands, a major component of concrete, as low-cost solid thermal storage materials. The novel approach is that the sand is saturated with high thermal conductive fluid. Compared to using concrete for thermal storage, this method avoids issues of heat transfer degradation associated with the mismatch of thermal expansion of pipes and concrete. Since only sands are porous materials and the heat transfer performance is low, a high conductive fluid (XCELTHERM® 600 hot oil) was used to saturate sands, which then forms a new thermal storage material that can have better heat transfer. Results of thermal storage process with sands only and with the oil-saturated sands are presented and discussed.

KW - CSP

KW - Dual-media

KW - HTF-saturated sands

KW - Sands

KW - Sensible heat storage

KW - Thermocline

UR - http://www.scopus.com/inward/record.url?scp=84926383511&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84926383511&partnerID=8YFLogxK

U2 - 10.1115/IMECE201438999

DO - 10.1115/IMECE201438999

M3 - Conference contribution

AN - SCOPUS:84926383511

VL - 6B

BT - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)

PB - American Society of Mechanical Engineers (ASME)

ER -