Abstract:… a Variable Conductance Heat Pipe (VCHP) instead, to allow the thermal resistance to increase under cold operating or cold survival environment conditions, keeping the instrument section warm. In spacecraft, thermal management is achieved using axially-grooved aluminum-… more
Abstract:Grooved aluminum/ammonia Constant Conductance Heat Pipes (CCHPs) are the standard for thermal control in zero-gravity. Unfortunately, they are limited in terms of their heat flux capability, approximately 5W/cm2. Incident heat flux for laser diode applications is on the order… more
Abstract:…oxide) using water and carbon dioxide as the reactants. New materials will also be screened for their ability to reduce the reactor temperature. Syngas is a particularly attractive fuel since it can be used to synthesize liquid fuels and chemicals such as methanol and ammonia.… more
Abstract:…nd power-requirement advantages with respect to the current state of the art. The Phase 1 objectives are: (1) to demonstrate the technical feasibility of using a novel monolithic carbon sorbent for trace-contaminant control; and (2) to demonstrate effective ammonia capture and… more
Abstract:… weapon systems. These systems e.g. high power ADT/RF, are typically powered cyclically and intermittently with peak requirement reaching upwards to 200 kW per system; with substantially lower average thermal dissipation requirement during normal operation. Water and ammonia… more
Abstract:… first time, enable the use of aluminum heat pipes with aqueous working fluids that are capable of operation at 200 Deg C or even higher. Additionally, our efforts to demonstrate a new wick material will offer substantial performance benefits to state-of-the-art ammonia heat… more
Abstract:ABSTRACT: An integrated warm gas pressurization of the main and ACS propulsion system offers simpler, more efficient propellant management than existing designs. The most operationally versatile system is based on a unique pump that forces liquid through a gasifier thus creating both the… more
Abstract:Ammonia is a toxic gas with a strong odor that is produced naturally in the biological degradation of organic matters and animal waste. Currently available ammonia sensors are either sensitive but too expensive or affordable but not able for an unattended, long term monitoring.… more
Abstract:… slip streams to demonstrate a production unit energy efficiency & gt;70%. The hydrogen market is huge, currently about 10 million tons/year in the US alone and a multi-billion dollar business. Most of the hydrogen is used by industrial markets, such as refineries, ammonia… more
Abstract:… emitted CO2 from the industrial sources and turn it into fertilizer. We utilize functionalized polyaniline (FPAN), a low-cost material that can be reused repeatedly at harmful conditions, to capture CO2 at low temperature and high speed. With the presence of ammonia and water… more
Abstract:… and demonstration of a cost-effective and power-efficient advanced remote sensing technology able to detect home made explosives. The system will be specifically designed to detect trace amount of the out-gassed by-products of explosive materials, in particular, ammonia… more
Abstract:… technical challenge for NASA, military, and civilian applications. The raw storage heat capacity of metal-hydrides surpass that of most latent- and bond-based thermal storage materials except the latent heat of vaporization of water and in some cases ammonia. Furthermore… more
Abstract:… minimize the volume/mass of the thermal management system. The Air Force currently seeks a TES with system-based heat capacities of 68 kJ/kg and 120 MJ/m3 while allowing for a charge/discharge rate of 2 kW/kg. Currently state-of-the-art paraffin-, metal-hydride-, and … more
Abstract:This Small Business Innovation Research (SBIR) Phase I project will lead to a highly miniaturized trace gas analyzers that are useful for emissions monitoring and industrial safety application. The planned work is motivated by a need to detect ammonia in the air. Once released… more
Abstract:… of exceeding the adsorption capacity of the carbon, which would result in breakthrough and inhalation of organic vapors, NIOSH has recommended the use of end-of-service life indicators (ESLI) in APRs. Although ESLIs have been developed for some toxic gases (e.g., ammonia),… more
Abstract:… fuels, but are routinely used in gasification or partial oxidation processes that run on coal, coke, bitumen and other heavy hydrocarbon feedstocks. Therefore in addition to synfuels production, they will also find applications in petroleum refineries, methanol and ammonia… more
Abstract:…. Gas released during dissociation must be stored. Phase I will evaluate systems storing gas (a) in and pressurized vessel, and (b) in a gas-storage reactor with a lower vapor pressure complex compound. TES systems of this type are recharged by allowing ammonia to… more
Abstract:… greenhouse gases and converting them to a valuable fuel or chemical.
Sustainable Innovations is developing an Electrochemical Greenhouse Gas Recycling System (EGGRS) that capture GHGs and converts them electrochemically to chemical commodities, i.e. methanol (CH2)H), ammonia… more
Abstract:… concept is based on the loop heat pipe (LHP) thermal switching radiator. Two key advancements proposed are: 1) use of a novel submicron pore size, high permeability wick that offers higher performance and lower cost than traditional titanium wicks typically used in ammonia… more
Abstract:Aerosol research remains a priority area and requires strong efforts to resolve the very complex processes that occur in the atmosphere. To understand aerosol formation and their implications on climate the study of precursors provides very valuable information. Ammonia is one… more
Abstract:… animal and poultry livestock environments can be challenging, not only due to the required quantitative and qualitative monitoring, but also for determining the air ventilation rates associated with elevated contaminant concentrations at high emission peaks. Ammonia, carbon… more
Abstract:…, and are expected to last longer than the commercial LiBr chillers. They can be driven by low level heat from low cost solar collectors. The materials in the system are basically non-toxic. Currently, commercialization of the less efficient and more costly aqua-ammonia… more
Abstract:… of this new phenomenon in heterogeneous catalysis.
The broader/commercial impact of this project is the opportunity to create significant energy and cost savings in hydrogen production. Hydrogen gas is a major feedstock for a number of industrial processes, including … more
Abstract:… and methane greenhouse gas emissions. However, two significant problems must be resolved prior to achieving that potential. Those problems are: 1) the poor economics associated with anaerobic digestion and 2) the release of toxic, greenhouse gas producing, ammonia nitrogen… more
Abstract:… using a steam and carbon dioxide mixture as input to a thermochemical cerium oxide cycle. Syngas is a particularly attractive fuel since it can be used to synthesize alternative fuels (notably, Fischer-Tropsch liquid fuels) or chemicals such as methanol and ammonia. It can… more
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