Aerospace Fuels from Nonpetroleum Raw Materials

Palaszewski, Bryan; Hepp, Aloysius F.; Kulis, Michael J.; Jaworske, Donald A.

doi:10.2514/6.2013-591

Cited by 2 publications

(2 citation statements)

References 31 publications

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“…Since there was remaining water, the exiting water was a mixture of liquid and gas. The ∆H of the mixture (h) was determined by Equation (11); using the calculated ∆H of the mixture, the thermal power required ( ) Q  was calculated by Equation (12).…”

Section: Power Requirements For Desalinationmentioning

confidence: 99%

See 1 more Smart Citation

In-Situ Resource Utilization for Space Exploration: Resource Processing, Mission-Enabling Technologies, and Lessons for Sustainability on Earth and Beyond

Hepp¹,

Palaszewski²,

Colozza³

et al. 2014

12th International Energy Conversion Engineering Conference

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Section: Power Requirements For Desalinationmentioning

confidence: 99%

“…13) including a preliminary comparison of methods using a two-stage production approach (Ref. 12). In this report, we provide a brief retrospective while looking towards the future.…”

Section: Introductionmentioning

confidence: 99%

In-Situ Resource Utilization for Space Exploration: Resource Processing, Mission-Enabling Technologies, and Lessons for Sustainability on Earth and Beyond

Hepp¹,

Palaszewski²,

Colozza³

et al. 2014

12th International Energy Conversion Engineering Conference

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In-Space Propulsion, Logistics Reduction, and Evaluation of Steam Reformer Kinetics: Problems and Prospects

Jaworske

Palaszewski

Kulis

et al. 2015

8th Symposium on Space Resource Utilization

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Human space missions generate waste materials. A 70-kg crewmember creates a waste stream of 1 kg per day, and a four-person crew on a deep space habitat for a 400+ day mission would create over 1600 kg of waste. Converted into methane, the carbon could be used as a fuel for propulsion or power. The NASA Advanced Exploration Systems (AES) Logistics Reduction and Repurposing (LRR) project is investing in space resource utilization with an emphasis on repurposing logistics materials for useful purposes and has selected steam reforming among many different competitive processes as the preferred method for repurposing organic waste into methane. Already demonstrated at the relevant processing rate of 5.4 kg of waste per day, high temperature oxygenated steam consumes waste and produces carbon dioxide, carbon monoxide, and hydrogen which can then be converted into methane catalytically. However, the steam reforming process has not been studied in microgravity. Data are critically needed to understand the mechanisms that allow use of steam reforming in a reduced gravity environment. This paper reviews the relevant literature, identifies gravity-dependent mechanisms within the steam gasification process, and describes an innovative experiment to acquire the crucial kinetic information in a small-scale reactor specifically designed to operate within the requirements of a reduced gravity aircraft flight. The experiment will determine if the steam reformer process is mass-transport limited, and if so, what level of forced convection will be needed to obtain performance comparable to that in 1-g.

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Aerospace Fuels from Nonpetroleum Raw Materials

Cited by 2 publications

References 31 publications

In-Situ Resource Utilization for Space Exploration: Resource Processing, Mission-Enabling Technologies, and Lessons for Sustainability on Earth and Beyond

In-Situ Resource Utilization for Space Exploration: Resource Processing, Mission-Enabling Technologies, and Lessons for Sustainability on Earth and Beyond

In-Space Propulsion, Logistics Reduction, and Evaluation of Steam Reformer Kinetics: Problems and Prospects

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