Stuart Energy Systems

The current availability of the necessary equipment to liberate hydrogen from water allows hydrogen to meet the eighth criterion "Be easily manufactured by a simple, reasonable cost process". Electrolyzers manufactured by Stuart Energy Systems, in Canada, and Teledyne-Brown, in the United States are shown in Chapters 6 and 7. 

The hydrogen and oxygen produced by the electrolyzer is saturated with water vapor. Figure 6.3 and 6.4 show Teledyne-Brown electrolyzer units available off the shelf. Stuart Energy Systems electrolyzers are depicted in Figure 6.5 and in Chapter 7. These systems demonstrate that no extensive development is needed to produce the desired types of electrolyzers. Before placing the gas from the... 

Figure 6.5 Stuart Energy Systems Solar Electric Electrolysis Module...

Figure 7.6 Stuart Energy Systems Personal Automobile Hydrogen Re-fueler...

Mr. Alexander Stuart Ms. Kerry Kelly Stuart Energy Systems, Toronto Canada For pictures of electrolyzer equipment. 

FIGURE 6.5 STUART ENERGY SYSTEMS SOLAR ELECTRIC ELECTROLYSIS MODULE 111... 

FIGURE 7.5 COMPARISON OF THE GREENHOUSE GAS EMHTED BY AUTOMOBILES. 141 FIGURE 7.6 STUART ENERGY SYSTEMS PERSONAL AUTOMOBILE HYDROGEN... 

Additionally, there are nine Associate Partners who assist with specific areas of expertise to help meet the CaFCP s goals hydrogen gas suppliers (Air Products and Chemicals, Inc. and Praxair) hydrogen fueling stations (Pacific Gas Electric, Proton Energy Systems, Inc., and Stuart Energy Systems) a methanol fuel supplier (Methanex) and bus transit agencies (AC Transit and Santa Clara Valley Transportation Authority which operate in the... 

Mateiial/System Producers/Suppliers Johnson Matthey Fuel Cells Nextech Materials Arthur D. Little McDermott Technology Foster-Miller, Inc. Spectracorp, Ltd. Idatech Corp. Stuarts Energy Systems 3M DuPont Vairex Corp. Celanese AG Thermo Technologies Mechanology, Inc. ... 

RAND would like to thank the following organizations for their generous support of the forum and of this document Toyota South Coast Air Quality Management District California Air Resources Board Air Products and Chemicals, Inc. Bechtel Chevron Corp. Parsons Corporation Ballard Power Systems, Inc. Gas Technology Institute Stuart Energy Arizona Public Service Applied Research and Engineering Services IF, LLC and Nuvera Fuel Cells. 

KOH systems have historically been used in larger-scale applications than PEM systems. Electrolyzer Corporation of Canada (now Stuart Energy) and the electrolyzer division of Norsk Hydro have built relatively large plants (100 kg/hour and larger) to meet fertilizer production needs in locations around the globe where natural gas is not available to provide hydrogen for the process. 

Brown Bovery, Switzerland — General Electric, United States - Teledyne-Brown Energy Systems, United States — Norsk Hydro, Norway — Stuart Electrolyzers, Canada... 

The energy efficiency is defined as the HHV of hydrogen divided by the energy consumed by the electrolysis system per kilogram of hydrogen produced (Table 23.5). The energy efficiency ranges from 56% to 73%. Proton s PEM process has the lowest efficiency at 56% and both Stuart s and... 

The efficiency of the electrolysis process—the theoretical amount of energy needed—39 kWh/kg of hydrogen, needs to be divided by the actual amount of energy used by the electrolysis unit to create hydrogen. Note that in this study, the energy requirement of the entire electrolysis system is used to calculate the efficiency, not just the efficiency of the electrolyzer. For example, the electrolyzer alone for the Stuart IMET 1000 requires 46.8 kWh/kg that corresponds to 83% efficiency when you divide the HHV of hydrogen by the electrolyzer power requirement. However, when you include the rectifier and auxiliaries, the energy requirement becomes 53.5 kWh/kg or 73% efficient for the system. An initial and approximate analysis was performed in [56] to find the effects of electricity... 

ISO 14001, an international standard describing the basic elements of an environmental meuiagement system, calls for identification of the environmental aspects and impacts of a company s products, processes, and services [Block 1997]. Industrial engineers may develop the information systems to quantify environmental aspects such as input materials, discharges, and energy consumption [Alexander 1996] (Stuart et al. 1998). 

Let n conducting bodies be located in a dielectric with permittivity e with the potential of each body (pk and the charge of each body equal to Qj.. It is possible to show (Stuart, 1965) that the energy stored in the electric field of this system is equal to... 

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