The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage

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KATO, Yukitaka ;YOSHIZAWA, Yoshio ;CERKOVNIK, Boštjan ;MINAKAMI, Atsushi .
The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 48, n.4, p. 194-209, july 2017. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/sl/article/the-suitability-of-magnesium-oxide-and-water-for-use-in-chemical-heat-storage/>. Date accessed: 17 sep. 2021. 
doi:http://dx.doi.org/.
Kato, Y., Yoshizawa, Y., Cerkovnik, B., & Minakami, A.
(2002).
The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage.
Strojniški vestnik - Journal of Mechanical Engineering, 48(4), 194-209.
doi:http://dx.doi.org/
@article{.,
	author = {Yukitaka  Kato and Yoshio  Yoshizawa and Boštjan  Cerkovnik and Atsushi  Minakami},
	title = {The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {48},
	number = {4},
	year = {2002},
	keywords = {chemical heat pumps; heat storage; magnesium oxide; cogeneration; },
	abstract = {Because of their high energy density, chemical heat pumps are an interesting possibility for heat storage. With reversible chemical reactions the heat can be stored or released on demand by controlling the flow of the reactive fluid. If they prove to have satisfactory repeatability, the reversible reactions can also be used in a heat storage system for cogeneration systems. In this way it would be possible to even out the load of the cogeneration system: in a period of low heat demand the surplus heat is stored with the chemical reaction in the heat storage and during a peak load period it can be released with the reverse reaction. In this paper we discuss the operation of a chemical heat pump that uses the reaction between magnesium oxide and water. In this case the heat can be stored with a dehydration process at about 300400 o C and released with a hydration process at about 100200 o C. In order to test the potential of magnesium hydroxide as a reactive medium for heat pumps we performed reaction experiments over a range of operation pressures between 30 kPa and 203 kPa. For the experiment, a specially prepared reactant with good properties for repetitive operation was packed in a cylindrical reactor. The experimental cycle consisted of an endothermic dehydration of the magnesium hydroxide for the heat storage, and an exothermic hydration of the magnesium oxide for the heat release. The cycle is repeated under various operating conditions that are characteristic for a heat-storage operation of a cogeneration system. Both directions of the reversible reaction were studied by measuring the reactor-bed temperature distribution and the reacted fraction changes. We conclude with a discussion of a practical application and the mean heat output rate of the reactor.},
	issn = {0039-2480},	pages = {194-209},	doi = {},
	url = {https://www.sv-jme.eu/sl/article/the-suitability-of-magnesium-oxide-and-water-for-use-in-chemical-heat-storage/}
}
Kato, Y.,Yoshizawa, Y.,Cerkovnik, B.,Minakami, A.
2002 July 48. The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 48:4
%A Kato, Yukitaka 
%A Yoshizawa, Yoshio 
%A Cerkovnik, Boštjan 
%A Minakami, Atsushi 
%D 2002
%T The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage
%B 2002
%9 chemical heat pumps; heat storage; magnesium oxide; cogeneration; 
%! The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage
%K chemical heat pumps; heat storage; magnesium oxide; cogeneration; 
%X Because of their high energy density, chemical heat pumps are an interesting possibility for heat storage. With reversible chemical reactions the heat can be stored or released on demand by controlling the flow of the reactive fluid. If they prove to have satisfactory repeatability, the reversible reactions can also be used in a heat storage system for cogeneration systems. In this way it would be possible to even out the load of the cogeneration system: in a period of low heat demand the surplus heat is stored with the chemical reaction in the heat storage and during a peak load period it can be released with the reverse reaction. In this paper we discuss the operation of a chemical heat pump that uses the reaction between magnesium oxide and water. In this case the heat can be stored with a dehydration process at about 300400 o C and released with a hydration process at about 100200 o C. In order to test the potential of magnesium hydroxide as a reactive medium for heat pumps we performed reaction experiments over a range of operation pressures between 30 kPa and 203 kPa. For the experiment, a specially prepared reactant with good properties for repetitive operation was packed in a cylindrical reactor. The experimental cycle consisted of an endothermic dehydration of the magnesium hydroxide for the heat storage, and an exothermic hydration of the magnesium oxide for the heat release. The cycle is repeated under various operating conditions that are characteristic for a heat-storage operation of a cogeneration system. Both directions of the reversible reaction were studied by measuring the reactor-bed temperature distribution and the reacted fraction changes. We conclude with a discussion of a practical application and the mean heat output rate of the reactor.
%U https://www.sv-jme.eu/sl/article/the-suitability-of-magnesium-oxide-and-water-for-use-in-chemical-heat-storage/
%0 Journal Article
%R 
%& 194
%P 16
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 48
%N 4
%@ 0039-2480
%8 2017-07-07
%7 2017-07-07
Kato, Yukitaka, Yoshio  Yoshizawa, Boštjan  Cerkovnik, & Atsushi  Minakami.
"The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage." Strojniški vestnik - Journal of Mechanical Engineering [Online], 48.4 (2002): 194-209. Web.  17 Sep. 2021
TY  - JOUR
AU  - Kato, Yukitaka 
AU  - Yoshizawa, Yoshio 
AU  - Cerkovnik, Boštjan 
AU  - Minakami, Atsushi 
PY  - 2002
TI  - The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - chemical heat pumps; heat storage; magnesium oxide; cogeneration; 
N2  - Because of their high energy density, chemical heat pumps are an interesting possibility for heat storage. With reversible chemical reactions the heat can be stored or released on demand by controlling the flow of the reactive fluid. If they prove to have satisfactory repeatability, the reversible reactions can also be used in a heat storage system for cogeneration systems. In this way it would be possible to even out the load of the cogeneration system: in a period of low heat demand the surplus heat is stored with the chemical reaction in the heat storage and during a peak load period it can be released with the reverse reaction. In this paper we discuss the operation of a chemical heat pump that uses the reaction between magnesium oxide and water. In this case the heat can be stored with a dehydration process at about 300400 o C and released with a hydration process at about 100200 o C. In order to test the potential of magnesium hydroxide as a reactive medium for heat pumps we performed reaction experiments over a range of operation pressures between 30 kPa and 203 kPa. For the experiment, a specially prepared reactant with good properties for repetitive operation was packed in a cylindrical reactor. The experimental cycle consisted of an endothermic dehydration of the magnesium hydroxide for the heat storage, and an exothermic hydration of the magnesium oxide for the heat release. The cycle is repeated under various operating conditions that are characteristic for a heat-storage operation of a cogeneration system. Both directions of the reversible reaction were studied by measuring the reactor-bed temperature distribution and the reacted fraction changes. We conclude with a discussion of a practical application and the mean heat output rate of the reactor.
UR  - https://www.sv-jme.eu/sl/article/the-suitability-of-magnesium-oxide-and-water-for-use-in-chemical-heat-storage/
@article{{}{.},
	author = {Kato, Y., Yoshizawa, Y., Cerkovnik, B., Minakami, A.},
	title = {The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {48},
	number = {4},
	year = {2002},
	doi = {},
	url = {https://www.sv-jme.eu/sl/article/the-suitability-of-magnesium-oxide-and-water-for-use-in-chemical-heat-storage/}
}
TY  - JOUR
AU  - Kato, Yukitaka 
AU  - Yoshizawa, Yoshio 
AU  - Cerkovnik, Boštjan 
AU  - Minakami, Atsushi 
PY  - 2017/07/07
TI  - The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 48, No 4 (2002): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 
KW  - chemical heat pumps, heat storage, magnesium oxide, cogeneration, 
N2  - Because of their high energy density, chemical heat pumps are an interesting possibility for heat storage. With reversible chemical reactions the heat can be stored or released on demand by controlling the flow of the reactive fluid. If they prove to have satisfactory repeatability, the reversible reactions can also be used in a heat storage system for cogeneration systems. In this way it would be possible to even out the load of the cogeneration system: in a period of low heat demand the surplus heat is stored with the chemical reaction in the heat storage and during a peak load period it can be released with the reverse reaction. In this paper we discuss the operation of a chemical heat pump that uses the reaction between magnesium oxide and water. In this case the heat can be stored with a dehydration process at about 300400 o C and released with a hydration process at about 100200 o C. In order to test the potential of magnesium hydroxide as a reactive medium for heat pumps we performed reaction experiments over a range of operation pressures between 30 kPa and 203 kPa. For the experiment, a specially prepared reactant with good properties for repetitive operation was packed in a cylindrical reactor. The experimental cycle consisted of an endothermic dehydration of the magnesium hydroxide for the heat storage, and an exothermic hydration of the magnesium oxide for the heat release. The cycle is repeated under various operating conditions that are characteristic for a heat-storage operation of a cogeneration system. Both directions of the reversible reaction were studied by measuring the reactor-bed temperature distribution and the reacted fraction changes. We conclude with a discussion of a practical application and the mean heat output rate of the reactor.
UR  - https://www.sv-jme.eu/sl/article/the-suitability-of-magnesium-oxide-and-water-for-use-in-chemical-heat-storage/
Kato, Yukitaka, Yoshizawa, Yoshio, Cerkovnik, Boštjan, AND Minakami, Atsushi.
"The Suitability of Magnesium Oxide and Water for Use in Chemical Heat Storage" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 48 Number 4 (07 July 2017)

Avtorji

Inštitucije

  • Tokyo Institute of Technology, Japan
  • Tokyo Institute of Technology, Japan
  • University of Ljubljana, Faculty of Mechanical Engineering, Slovenia
  • NSK Ltd, Japan

Informacije o papirju

Strojniški vestnik - Journal of Mechanical Engineering 48(2002)4, 194-209

Because of their high energy density, chemical heat pumps are an interesting possibility for heat storage. With reversible chemical reactions the heat can be stored or released on demand by controlling the flow of the reactive fluid. If they prove to have satisfactory repeatability, the reversible reactions can also be used in a heat storage system for cogeneration systems. In this way it would be possible to even out the load of the cogeneration system: in a period of low heat demand the surplus heat is stored with the chemical reaction in the heat storage and during a peak load period it can be released with the reverse reaction. In this paper we discuss the operation of a chemical heat pump that uses the reaction between magnesium oxide and water. In this case the heat can be stored with a dehydration process at about 300400 o C and released with a hydration process at about 100200 o C. In order to test the potential of magnesium hydroxide as a reactive medium for heat pumps we performed reaction experiments over a range of operation pressures between 30 kPa and 203 kPa. For the experiment, a specially prepared reactant with good properties for repetitive operation was packed in a cylindrical reactor. The experimental cycle consisted of an endothermic dehydration of the magnesium hydroxide for the heat storage, and an exothermic hydration of the magnesium oxide for the heat release. The cycle is repeated under various operating conditions that are characteristic for a heat-storage operation of a cogeneration system. Both directions of the reversible reaction were studied by measuring the reactor-bed temperature distribution and the reacted fraction changes. We conclude with a discussion of a practical application and the mean heat output rate of the reactor.

chemical heat pumps; heat storage; magnesium oxide; cogeneration;