Energy Analysis of n-Dodecane Combustion in a Hetero/Homogeneous Heat-Recirculating Microreactor for Portable Power Applications

An energy analysis is presented for n-dodecane/air combustion in a heat recirculating Inconel microreactor under vacuum conditions. Microreactor channels are partially coated with platinum enabling operating with coupled heterogeneous and homogeneous reactions. The radiant efficiency, important for...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2016-11, Vol.773 (1), p.12060
Main Authors: Waits, C M, Tolmachoff, E D, Allmon, W R, Zecher-Freeman, N E
Format: Article
Language:English
Subjects:
Combustion efficiency
Dodecane
Energy conversion
Enthalpy
Microreactors
Nickel base alloys
Physics
Superalloys
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An energy analysis is presented for n-dodecane/air combustion in a heat recirculating Inconel microreactor under vacuum conditions. Microreactor channels are partially coated with platinum enabling operating with coupled heterogeneous and homogeneous reactions. The radiant efficiency, important for thermophotovoltaic energy conversion, was found to decrease from 57% to 52% over 5 different runs covering 377 min of operation. A similar decrease in combustion efficiency was observed with 6%-8% energy lost to incomplete combustion and 5%- 6% lost through sensible heat in the exhaust. The remaining thermal loss is from unusable radiation and conduction through inlet and outlet tubing. Changes in the Inconel microreactor geometry and emissivity properties were observed.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/773/1/012060