29,241 research outputs found
Space suit heat exchanger Patent
Space suit body heat exchanger design composed of thermal conductance yarn and liquid coolant loop
Tool repairs tube components in situ
Two versions of a portable tool repair the seats of tube fittings and the flared ends of tubing. Each version operates on the principle of lapping to remove imperfections from tube and fitting interfacing surfaces
Extravehicular tunnel suit system Patent
Design and development of flexible tunnel for use by spacecrews in performing extravehicular activitie
Coupling device
Releasable coupling device designed to receive and retain matching ends of electrical connector
Recommended from our members
Ethanol internal reforming in solid oxide fuel cells: A path toward high performance metal-supported cells for vehicular applications
Internal reforming of ethanol fuel was investigated on high-performance metal-supported solid oxide fuel cells (MS-SOFCs) with infiltrated catalysts. The hydrogen concentration and internal reforming effects were evaluated systematically with different fuels including: hydrogen, simulated reformate, anhydrous ethanol, ethanol water blend, and hydrogen-nitrogen mixtures. A simple infiltration of Ni reforming catalyst into 40 vol% Ni-Sm0.20Ce0.80O2-δ (Ni-SDCN40) and fuel-side metal support leads to complete internal reforming, as confirmed by comparison to simulated reformate. The performance difference between hydrogen and fully-reformed ethanol is attributed entirely to decrease in hydrogen concentration. High peak power density was achieved for a range of conditions, for example 1.0 W cm−2 at 650 °C in ethanol-water blend, and 1.4 W cm−2 at 700 °C in anhydrous ethanol fuel. Initial durability tests with ethanol-water blend show promising stability for 100 h at 700 °C and 0.7 V. Carbon is not deposited in the Ni-SDCN40 anode during operation
- …
