Process for the energy-saving recovery of useful or available heat from the environment or from waste heat
First Claim
1. A process for the energy-saving recovery of useful heat from the environment or from waste heat with the use of a reversible chemical reaction of the formation and decomposition of metal hydrides, comprising the steps of:
- providing two vessels interconnected by lines and which are filled with about equal parts of a metal hydride and the hydride forming metal or the hydride forming alloy, alternatingly and successively charging and discharging the vessels with hydrogen by pressure variation and exchanging the heat of compression and the hydride formation, removing the useful heat and replacing consumed heat of expansion and hydrogen evolution of the hydride by heat exchange with the environment or by waste heat, wherein the heat exchange removing useful heat and the heat exchange with the environment or waste heat is conducted by heat pipes which transfer heat only in one direction.
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Abstract
A process for the energy-saving recovery of useful heat from the environment or from waste heat with the use of a reversible chemical reaction comprising, charging and discharging alternatingly and successively by pressure variation with hydrogen two vessels which are interconnected by lines and filled with a metal hydride and the hydride-forming metal and removing as useful heat the heat of compression and of hydride formation thereby liberated by heat exchange and replacing consumed heat of expansion and hydrogen evolution of the hydride by heat exchange with the environment or by waste heat.
19 Citations
12 Claims
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1. A process for the energy-saving recovery of useful heat from the environment or from waste heat with the use of a reversible chemical reaction of the formation and decomposition of metal hydrides, comprising the steps of:
- providing two vessels interconnected by lines and which are filled with about equal parts of a metal hydride and the hydride forming metal or the hydride forming alloy, alternatingly and successively charging and discharging the vessels with hydrogen by pressure variation and exchanging the heat of compression and the hydride formation, removing the useful heat and replacing consumed heat of expansion and hydrogen evolution of the hydride by heat exchange with the environment or by waste heat, wherein the heat exchange removing useful heat and the heat exchange with the environment or waste heat is conducted by heat pipes which transfer heat only in one direction.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for the energy saving recovery of useful heat from the environment or from waste heat which comprises at least one system comprising:
- two reservoirs which have about the same size and each of which is filled with about one half of metal hydride and one half of the hydride-forming metal or the hydride-forming alloy;
pressure varying means for alternatingly and successively charging and discharging the two vessels with hydrogen and means for removing the useful heat and replacing consumed heat of expansion and hydrogen evolution of the hydride by heat exchange with the environment or by waste heat comprising heat pipes which transfer heat only in one direction for removing the useful heat and for conducting waste heat for the heat exchange with the environment. - View Dependent Claims (10, 11, 12)
- two reservoirs which have about the same size and each of which is filled with about one half of metal hydride and one half of the hydride-forming metal or the hydride-forming alloy;
Specification
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- Resources
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Current AssigneeStudiengesellschaft Kohle MBH
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Original AssigneeStudiengesellschaft Kohle MBH
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InventorsRitter, Alfred E.
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Primary Examiner(s)Davis, Jr., Albert W.
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Application NumberUS06/268,970Time in Patent Office890 DaysField of Search165/104.12, 165/DIG. 17, 165/1, 165/32, 165/104.21, 165/104.14US Class Current165/104.12CPC Class CodesF25B 17/12 using desorption of hydroge...
