fuel cell unit Articles
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Uninterruptible Power Supply - Case Study
Overview Events such as Hurricane Katrina in 2005 have focused attention on the availability and reliability of telecommunications services worldwide. Both wireless and wireline communications are expanding globally, so the provision of reliable, economical power is vital. Terrestrial Trunked Radio (TETRA) networks in use by emergency services, military personnel and government agencies require ...
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Fuel cell–based distributed generation system with power flow and power quality control
This paper presents the modelling and control of fuel cell–based distributed generation system with embedded active filter functioning. It includes the modelling of proton electrolyte membrane fuel cell and the power conditioning unit interfacing the fuel cell to the utility grid with proper power flow control. The output of the fuel cell stack is given to the DC–DC boost converter ...
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Operating experiences with a molten carbonate fuel cell at Stuttgart-Möhringen wastewater treatment plant
Fuel cells on wastewater treatment plants are a relatively new technology to convert biogas from anaerobic digestion into thermal and electrical energy. Since the end of 2007, a type of MCFC fuel cell (>250 kWel, 180 kWth) has been installed at Stuttgart-Möhringen wastewater treatment plant. The goals of this research project are to raise the power self-sufficiency in Stuttgart-Möhringen, to ...
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What’s stopping microgrids?
The perfect solution exists. Why don’t we have it? The massive blackouts that blanketed California in October cut power to more than 100,000 businesses. Hospital chains Sutter Health and Adventist Health were forced to cancel procedures and close facilities. Some Trader Joe’s and other supermarkets shuttered for days. Factories scrambled to find backup generators and fuel to run ...
By Bloom Energy
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Classification and comparison of interfacing schemes for connecting fuel cells to a single-phase utility line
Based on a systematic classification of dc source to utility interfacing schemes, this paper presents six major interfacing schemes for connecting fuel cells to a single-phase utility line using high-frequency transformer isolated power converters. The operation, advantages and disadvantages are discussed for each scheme with examples and operating waveforms. Several features e.g., utility line ...
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Exergy and industrial ecology: an application to an integrated energy system
Exergy analysis can help integrate separate technologies following the principles of industrial ecology. An application of exergy analysis to calculate depletion numbers, which relate exergy destruction and total exergy use, is demonstrated for a gas turbine cycle combined with a hydrogen generation unit. The design includes a Solid Oxide Fuel Cell (SOFC) with internal natural gas reforming and a ...
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Accelerating clean energy innovation means tailoring R&D policy to technology scale and risk
The energy sector is technology-intensive, and it has passed through several innovation-led transformations in the last two centuries The last 200 years of the history of energy could be characterised, without too much exaggeration, as five or six long periods of disruption and uncertainty, punctuated by moments of stability. The energy sector is technology-intensive, and it has passed through ...
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