| Title | A Limited Investigation into Regenerative Braking and Energy Storage for Mass Transit Systems |
|---|---|
| Record ID | 49319 |
| Personal Name Creator |
Eisenhaure, David; O'Dea, Stephen |
| Source | 46p. in various pagings |
| Corporate Creator | Charles Stark Draper Laboratory |
| Corporate Contributor |
John A. Volpe National Transportation Systems Center (U.S.); United States. Department of Transportation. Research and Special Programs Administration. Transportation Systems Center; United States. Department of Transportation. Urban Mass Transportation Administration. Office of Technology Development and Deployment; United States. National Science Foundation. Office of Systems Integration and Analysis |
| Publisher | United States. Department of Transportation. Urban Mass Transportation Administration; United States. National Science Foundation |
| Publication Date | 19780301 |
| Language | English |
| Abstract | This study examines the technical and economic aspects of a regenerative braking/flywheel energy storage subway system. In order to define the analytical models accurately, it was necessary to gather data on the trains, rail network, schedules, and ancillary equipment. Data on projected costs of flywheels, motors, rails, and other equipment were also gathered for use in the economic analysis. During this data gathering phase, it was decided that the Massachusetts Bay Transportation Authority (MBTA) Red Line would be the source of the most representative and complete data. The problem was to determine what, if any, combination of energy storage devices and high conductivity rails would yield a subway system with a lower life cycle cost. The primary goal of the study was to compare the system costs of wayside storage with those of on-board storage. Using data provided by MBTA, power levels vs. time and rail losses were calculated and used to determine the sizing and location of energy storage units. From the amounts of energy storage required, the costs of the flywheels and i/o equipment were calculated. Utilizing these modules for load leveling was also considered. However, since the energy storage required for load leveling is much greater than that required for regenerative braking, a separate study is needed to examine this in detail. |
| Rosap ID | dot:10776 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/10776 |
| TRT Terms | Braking; Dynamic braking; Costs; Economic analysis; Economic factors; Energy; Energy conversion; Power; Energy storage systems; Flywheels; Life cycle costing; Life cycle analysis; Power modules; Regenerative braking; Public transit; Railroad rails; Railroad tracks; Railroad trains; Railroad transportation; Rapid transit; Scheduling; Subways |
| General Subjects | Conductivity; Cost analysis; Massachusetts Bay Transit Authority |
| Classification | NTL - ENERGY AND ENVIRONMENT - ENERGY AND ENVIRONMENT; NTL - ENERGY AND ENVIRONMENT - Transit Energy and Environment; NTL - ENERGY AND ENVIRONMENT - Environment Impacts |
| Geographical Coverage |
Boston (Massachusetts) |
| Contract Number | RA-77-1 |
| Report Number | DOT-TSC-UMTA-77-53; UMTA-MA-06-0044-77-3 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/49000/49300/49319/limitedinvestiga00eise.pdf |
| Format | |
| Database | NTL Digital Repository |