A transverse deceleration energy harvester based on a sliding plate for self-powered applications in near-zero energy road tunnels. (September 2022)

• Record Type: Journal Article
• Authors: Jiang, Zhuojun; Jia, Changyuan; Zheng, Peng; Gong, Yuchen; Li, Ning; Ahmed, Ammar; Zhang, Zutao; Luo, Dabing
• Is Part Of: Sustainable cities and society. Volume 84(2022)
• Publication Date: 2022-09
• Subjects: Energy harvester -- Near-zero energy road tunnels -- Sliding plate -- Self-powered applications; Sustainable urban development -- Periodicals; Sustainable buildings -- Periodicals; Urban ecology (Sociology) -- Periodicals; 307.76
• DOI: 10.1016/j.scs.2022.104014
• Languages: English
• ISSNs: 2210-6707

Abstract

Highlights: A near-zero energy environment was developed for road tunnels through cleaner energy generation. As the novel energy input mechanism, a sliding plate was laid on the ground. Maximum and average efficiencies of the TDEH are 64.4% and 45.9%, respectively. The proposed TDEH is simple in structure and easy to install. Abstract: Creating a near-zero energy environment is a hot research topic, and this concept can also be applied to road tunnels. By introducing cleaner energy for power generation, we can achieve the goal of sustainable cities and society. This paper proposes a sliding plate-based transverse deceleration energy harvester for near-zero energy road tunnels. The system comprises four modules. The sliding plate absorbs the kinetic energy lost as the vehicle slows down, and the transmission module converts it to electrical energy via the generator. A supercapacitor is used to store electrical energy from a generator. The average output power of 5.135 W is obtained at a peak conversion efficiency of 64.4% under 1.5 Hz frequency and 10 mm amplitude. At 1.5 Hz frequency and 8 mm amplitude, the harvester can supercharge a 5 F capacity to 4 V in 220 s. For example, the Jiaozhou Bay Tunnel's annual power generation capacity can reach 110 kW·h. The harvester can be installed at the tunnel's entrance and exit by recording the power ratings of tunnel lighting and common sensors, enabling self-powered applications in road tunnels.