Preparing Your Airport for Electric Aircraft and Hydrogen Technologies (2022) / Chapter Skim
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Pages 115-128
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From page 115... ...
115 Power Generation and Management 13.1 Power Management The advent of low-cost computing has helped improve power and building management technologies. However, according to extensive study by James Dice from Nexus, technology in buildings is decades behind other industries.
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116 Preparing Your Airport for Electric Aircraft and Hydrogen Technologies Building management systems have been traditionally used to control HVAC loads within buildings. These systems are getting more sophisticated by using digital twins, fault detection and diagnostics, machine learning, data lakes, and cloud computing.
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Power Generation and Management 117 aircraft may have different flight characteristics; however, in certain applications (e.g., short-haul and cargo service) , electric power may be more efficient than jet engines that use fossil fuel.
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118 Preparing Your Airport for Electric Aircraft and Hydrogen Technologies Date Airport Name 3-Letter FAA Code Country Duration Operational Impacts 7/30/2012 Delhi Indira Gandhi Intl. DEL India Several hours Despite a multistate outage due to a massive failure of the northern grid of the country, 95% of the airport activity was preserved.
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From page 119... ...
Power Generation and Management 119 • Storms can damage electric distribution facilities and electric generation facilities. • Droughts and high winds across the West, especially in California, are increasing the wildfire risk, which has led to pre-emptive Public Safety Power Shutoff events.
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120 Preparing Your Airport for Electric Aircraft and Hydrogen Technologies Roughly 95 percent of generators used today by commercial buildings and critical facilities are powered by either diesel or natural gas. Apart from differences in costs, an important distinction between the two fuels is that diesel is supplied by truck deliveries and stored on-site, while natural gas is supplied by pipeline.
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Power Generation and Management 121 nighttime, and release that energy when power is expensive. Unlike generators, batteries have a limited time duration and get more expensive the longer they are required.
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122 Preparing Your Airport for Electric Aircraft and Hydrogen Technologies by-product. However, unlike a natural gas combustion generator, a natural gas fuel-cell generator avoids the production of NOx and particulate matter air pollutants.
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Power Generation and Management 123 Microgrids and Other Options Microgrids are an emerging solution set that may help airports save on operating costs while still providing the backup power discussed in this report. Microgrids consist of on-site power generation sources that can run during blue-sky operations, but also run in full "island mode" during power outages (i.e., serving as the sole source of power for the local user)
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From page 124... ...
124 Preparing Your Airport for Electric Aircraft and Hydrogen Technologies Capital Costs Included in the considerations for determining the capital cost of each backup power strategy are the costs associated with procuring the unit itself, fuel storage costs, and installation costs. In this analysis, each item cost is broken down by cost per kilowatt to provide a standard metric of evaluation.
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Power Generation and Management 125 low operational hours, it can be assumed that the majority of the maintenance performed will be scheduled maintenance and testing. The maintenance costs (Table 25)
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126 Preparing Your Airport for Electric Aircraft and Hydrogen Technologies generators emit the least pollutants in total. In contrast, the operation of diesel generators has the highest daily total emission for GHGs, SOx, and particulate matter, while natural gas generators emit the most NOx daily.
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Power Generation and Management 127 Sources: NREL.
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From page 128... ...
128 Preparing Your Airport for Electric Aircraft and Hydrogen Technologies Research also shows that significant hydrogen leakage could have negative effects on the atmosphere, such as increasing the lifetime of methane, increasing climate effects, and causing some depletion of the ozone layer. The research found that overall air quality in the lower atmosphere will still improve if hydrogen is introduced to the future mix of energy sources due to the reduction of fossil fuel use.
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