Abstract
Energy storage devices for fluid power applications that are significantly more compact than existing ones will enable energy regeneration for many applications, including fluid power hybrid vehicles and construction equipment. The current approach to hydraulic energy storage makes use of a compressed gas enclosed in a closed chamber. As the system must contain the expanded gas and the hydraulic oil displaced, the optimal energy density occurs at a modest expansion ratio resulting in a small energy density. By allowing intake and exhaust of compressed and expanded air from and to the atmosphere, a potential order of magnitude increase in energy density is available in the new open accumulator approach. Potential methods for realizing the new configuration are described. Analysis and simulation case studies illustrate both the advantages and challenges of the new approach.
| Original language | English (US) |
|---|---|
| Title of host publication | Design, Analysis, Control and Diagnosis of Fluid Power Systems |
| Publisher | American Society of Mechanical Engineers (ASME) |
| Pages | 127-140 |
| Number of pages | 14 |
| ISBN (Electronic) | 0791842983 |
| DOIs | |
| State | Published - Jan 1 2007 |
| Event | ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 - Seattle, United States Duration: Nov 11 2007 → Nov 15 2007 |
Publication series
| Name | ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE) |
|---|---|
| Volume | 4 |
Other
| Other | ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007 |
|---|---|
| Country | United States |
| City | Seattle |
| Period | 11/11/07 → 11/15/07 |
Fingerprint
Keywords
- Accumulators
- Closed accumulators
- Control systems
- Energy density
- Hydraulic pump-motor
- Open accumulators
- Pneumatic motor-compressor
- Regeneration
Cite this
Open accumulator concept for compact fluid power energy storage. / Li, Perry Y; Van De Ven, James D; Sancken, Caleb.
Design, Analysis, Control and Diagnosis of Fluid Power Systems. American Society of Mechanical Engineers (ASME), 2007. p. 127-140 (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 4).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Open accumulator concept for compact fluid power energy storage
AU - Li, Perry Y
AU - Van De Ven, James D
AU - Sancken, Caleb
PY - 2007/1/1
Y1 - 2007/1/1
N2 - Energy storage devices for fluid power applications that are significantly more compact than existing ones will enable energy regeneration for many applications, including fluid power hybrid vehicles and construction equipment. The current approach to hydraulic energy storage makes use of a compressed gas enclosed in a closed chamber. As the system must contain the expanded gas and the hydraulic oil displaced, the optimal energy density occurs at a modest expansion ratio resulting in a small energy density. By allowing intake and exhaust of compressed and expanded air from and to the atmosphere, a potential order of magnitude increase in energy density is available in the new open accumulator approach. Potential methods for realizing the new configuration are described. Analysis and simulation case studies illustrate both the advantages and challenges of the new approach.
AB - Energy storage devices for fluid power applications that are significantly more compact than existing ones will enable energy regeneration for many applications, including fluid power hybrid vehicles and construction equipment. The current approach to hydraulic energy storage makes use of a compressed gas enclosed in a closed chamber. As the system must contain the expanded gas and the hydraulic oil displaced, the optimal energy density occurs at a modest expansion ratio resulting in a small energy density. By allowing intake and exhaust of compressed and expanded air from and to the atmosphere, a potential order of magnitude increase in energy density is available in the new open accumulator approach. Potential methods for realizing the new configuration are described. Analysis and simulation case studies illustrate both the advantages and challenges of the new approach.
KW - Accumulators
KW - Closed accumulators
KW - Control systems
KW - Energy density
KW - Hydraulic pump-motor
KW - Open accumulators
KW - Pneumatic motor-compressor
KW - Regeneration
UR - http://www.scopus.com/inward/record.url?scp=44149088825&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44149088825&partnerID=8YFLogxK
U2 - 10.1115/IMECE2007-42580
DO - 10.1115/IMECE2007-42580
M3 - Conference contribution
AN - SCOPUS:44149088825
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 127
EP - 140
BT - Design, Analysis, Control and Diagnosis of Fluid Power Systems
PB - American Society of Mechanical Engineers (ASME)
ER -