WORK PACKAGE – 3 Metal – Hydride Sorption Cooling

NFTDC | IIT M | Sree Chitra Thirunal

Target Device

Biomimetic Design of Cooling Device: Carrier: H2; 2mm dia: Waste Heat; 3-6mm dia: Device; diameter=50-80 mm; length=250-400mm

Prototype Device with twin cartridges (HT & LT) coupled to waste heat
source & 1m3 volume to be cooled from 40oC to 15oC as demonstration

Two prototype configurations >> Cabin & Automotive application space.

Materials

La – Ni – X (Al, Ce, Fe); 4 Compositions;

per cartridge: 1.5 - 1.7 kg HT and 0.8-1.0 kg LT

Aparatus

Centrifugal Powder Preparation Apparatus for 1 kg powder/run

Attributes: T 2000oC max); Induction heating; Vacuum + Ar

Multi-layer crucibles to hold & spin liquid melt; ceramic nozzles

Run Time 30 minutes charge to charge; rpm 300 – 500



WORK PACKAGE – 3 Metal – Hydride Sorption Cooling


1. Biomimetic Design of Cooling Device - First Iteration



WORK PACKAGE – 3 Metal – Hydride Sorption Cooling


2. Sample Results of HT – LT System using Metal – Hydride


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T - decrease 8oC per unit air volume in circulation per cycle
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T - decrease 8oC per unit air volume in circulation per cycle
T - decrease 8oC per unit air volume in circulation per cycle
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T - decrease 8oC per unit air volume in circulation per cycle


WORK PACKAGE – 3 Metal – Hydride Sorption Cooling


3. Materials to Device


10 kW Induction Melting System
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10 kW Induction Melting System
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Vacuum Centrifugal Caster – Concept Design
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1 m3 Prototype of Metal – Hydride based Cooling Set-up
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1 m3 Prototype of Metal – Hydride based Cooling Set-up
1 m3 Prototype of Metal – Hydride based Cooling Set-up
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1 m3 Prototype of Metal – Hydride based Cooling Set-up
Attritor Mill
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Attritor Mill





WORK PACKAGE – 3 Metal – Hydride Sorption Cooling

1. Powders to Sorption Cooling Device & Characterization


Planetary Ball Mill
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Planetary Ball Mill
Attritor Mill
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Attritor Mill
Static & Dynamic PCT Measurement
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Static & Dynamic PCT Measurement
Static & Dynamic PCT Measurement
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Static & Dynamic PCT Measurement
Effective Thermal Conductivity Measurement
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Effective Thermal Conductivity Measurement
Hydrogen Storage Experimental Facility for Metal Hydrides
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Hydrogen Storage Experimental Facility for Metal Hydrides
Hydrogen Storage Experimental Facility for Metal Hydrides
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Hydrogen Storage Experimental Facility for Metal Hydrides




WORK PACKAGE – 3 Metal – Hydride Sorption Cooling

1. Modeling & Simulation

Sree Chitra Thirunal College of Eng Facilities:
Numerical Study of Metal Hydride Storage Device with Embedded HX Tubes
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Numerical Study of Metal Hydride Storage Device with Embedded HX Tubes
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Numerical Study of Metal Hydride Storage Device with Embedded HX Tubes
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Numerical Study of Metal Hydride Storage Device with Embedded HX Tubes
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Formation of hydride inside tubular storage within the air stream during absorption
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Effect of external fins on rate of hydride formation
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Effect of air temperature on hydride formation
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Spatial variation of concentration in MH bed with Aluminum Foam (p=15 bar, Tf=300 K)
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Wall Stresses in Metal Hydride Container with Dimples
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Wall Stresses in Metal Hydride Container with Dimples
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