Passive Automatic Switch Relying on Laplace Pressure for Efficient Underwater Low-Gas-Flux Bubble Energy Harvesting

拉普拉斯压力 浮力 气泡 机械 能量(信号处理) 能量通量 比能量 化学 表面张力 热力学 物理 量子力学 天文
作者
Yu Du,Ping Li,Yumei Wen,Zhibin Guan
出处
期刊:Langmuir [American Chemical Society]
卷期号:39 (9): 3481-3493 被引量:4
标识
DOI:10.1021/acs.langmuir.2c03517
摘要

The buoyancy potential energy contained in bubbles released by subsea geological and biological activities represents a possible in situ energy source for underwater sensing and detection equipment. However, the low gas flux of the bubble seepages that exist widely on the seabed introduces severe challenges. Herein, a passive automatic switch relying on Laplace pressure is proposed for efficient energy harvesting from low-gas-flux bubbles. This switch has no moving mechanical parts; it uses the Laplace-pressure difference across a curved gas-liquid interface in a biconical channel as an invisible "microvalve". If there is mechanical equilibrium between the Laplace-pressure difference and the liquid-pressure difference, the microvalve will remain closed and prevent the release of bubbles as they continue to accumulate. After the accumulated gas reaches a threshold value, the microvalve will open automatically, and the gas will be released rapidly, relying on the positive feedback of interface mechanics. Using this device, the gas buoyancy potential energy entering the energy harvesting system per unit time can be increased by a factor of more than 30. Compared with a traditional bubble energy harvesting system without a switch, this system achieves a 19.55-fold increase in output power and a 5.16-fold enhancement in electrical energy production. The potential energy of ultralow flow rate bubbles (as low as 3.97 mL/min) is effectively collected. This work provides a new design philosophy for passive automatic-switching control of gas-liquid two-phase fluids, presenting an effective approach for harvesting of buoyancy potential energy from low-gas-flux bubble seepages. This opens a promising avenue for in situ energy supply for subsea scientific observation networks.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
大幅提高文件上传限制,最高150M (2024-4-1)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
饱满的琦完成签到,获得积分10
1秒前
SF发布了新的文献求助10
1秒前
2秒前
Eurus发布了新的文献求助30
2秒前
2秒前
东宇大帝完成签到,获得积分10
3秒前
3秒前
4秒前
小二郎应助YZZ采纳,获得10
4秒前
5秒前
潇洒新之发布了新的文献求助50
5秒前
俭朴的薯片完成签到,获得积分10
5秒前
科研小牛马完成签到,获得积分10
5秒前
6秒前
SMQ完成签到,获得积分10
6秒前
小木虫发布了新的文献求助10
7秒前
隐形曼青应助DYY采纳,获得10
7秒前
寒月如雪发布了新的文献求助10
8秒前
8秒前
今后应助科研通管家采纳,获得10
9秒前
科研通AI2S应助科研通管家采纳,获得10
9秒前
Nife应助科研通管家采纳,获得10
9秒前
9秒前
CipherSage应助科研通管家采纳,获得10
9秒前
陈陈发布了新的文献求助10
9秒前
科研通AI2S应助科研通管家采纳,获得10
9秒前
orixero应助科研通管家采纳,获得10
9秒前
脑洞疼应助科研通管家采纳,获得10
9秒前
ShowMaker应助科研通管家采纳,获得100
9秒前
勤恳怀梦发布了新的文献求助10
9秒前
bkagyin应助科研通管家采纳,获得10
9秒前
田様应助科研通管家采纳,获得10
9秒前
汉堡包应助科研通管家采纳,获得10
9秒前
完美世界应助科研通管家采纳,获得10
9秒前
Orange应助科研通管家采纳,获得10
10秒前
10秒前
上官若男应助科研通管家采纳,获得10
10秒前
橘子石榴应助科研通管家采纳,获得10
10秒前
852应助科研通管家采纳,获得10
10秒前
Ava应助科研通管家采纳,获得10
10秒前
高分求助中
Evolution 10000
Sustainability in Tides Chemistry 2800
юрские динозавры восточного забайкалья 800
English Wealden Fossils 700
An Introduction to Geographical and Urban Economics: A Spiky World Book by Charles van Marrewijk, Harry Garretsen, and Steven Brakman 600
Diagnostic immunohistochemistry : theranostic and genomic applications 6th Edition 500
Mantiden: Faszinierende Lauerjäger Faszinierende Lauerjäger 400
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3152854
求助须知:如何正确求助?哪些是违规求助? 2804064
关于积分的说明 7856939
捐赠科研通 2461847
什么是DOI,文献DOI怎么找? 1310502
科研通“疑难数据库(出版商)”最低求助积分说明 629279
版权声明 601788