Generation of Electricity by Normal Human Movement

人体正常运动发电

• 批准号: 7160234
• 负责人: LOUIS L FLYNN
• 金额: $ 17.78万
• 依托单位: LIGHTNING PACKS, LLC
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-29 至 2007-11-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7160234
• 关键词: bioengineering /biomedical engineering; biomechanics; biomedical device power system; biomedical equipment development; body movement; electrophysiology; energy source; ergonomics; mathematical model; metabolism; model design /development; portable biomedical equipment

DESCRIPTION (provided by applicant): Project Summary/Abstract: Humans have become increasingly dependent on technology, particularly electronic devices. In the past decade, electronic devices have become more mobile, enabling people to use medical devices, cellular/satellite phones, laptop computers, and GPS as they move around cities or in the wilderness. At present, all of these devices run off of batteries which have limited lifetimes and add considerable weight to the device. The combination of limited lifetimes and large weight of batteries is particularly crucial to disaster relief workers, first responders, field scientists and explorers on prolonged expeditions. These individuals often must carry heavy packs (> 80 lbs), and much of the weight is replacement batteries. Millions of dollars have gone into developing a portable and renewable human-generated energy source but there has not been a solution. To solve this problem, we developed a passive device, the Suspended-load Backpack, which extracts mechanical energy during walking and then converts it to electricity. While carrying an 80 lb load, individuals can generate in excess of 7 W of electricity, and approximately 2 W with a 40 lb load. This is a significant because previously published attempts with devices fitted in shoes generated ~300-fold less (~20 W). The electricity generated by our backpack can be used to power equipment in real-time, and recharge batteries. Interestingly, metabolic experiments show that generating this electricity increases the metabolic rate by only 2-3%, and actually reduces the energetic cost for carrying a load. Further, carrying the load is ergonomically more comfortable with the Suspended-load Backpack than standard ones because of reduction in forces on the body, and thus should reduce common orthopedic injury. As backpacks represent a $295 million annual business, an electricity-generating backpack has substantial commercial value. Additional innovative design/engineering is necessary to bring the "proof of concept" to commercialization. SPECIFIC AIM 1: Reduce the weight of the Suspended-load electricity-generating backpack. SPECIFIC AIM 2: Make a mathematical/computational model of the electricity-generating backpack. SPECIFIC AIM 3: Develop circuitry to control damping, power portable devices and charge storage devices. There are equally compelling health/societal applications for the device in Developing Countries. A large percentage of the world's population lives off the electrical grid. Because of this, their drinking water is often contaminated with pathogens, they have no routine medical testing, nor access to vaccines. Many portable, low power devices have been developed which can provide a great improvement but what is missing is a small source of electricity. The backpack can provide sufficient power for: sterilizing water with portable UV lamps (SteriPen), help provide requisite refrigeration of vaccines, simple diagnostic tests, and communication devices in the case of emergencies. In Phase II, a new, lighter and more efficient prototype will be developed and clinically tested, taking advantage of the improved technologies and understanding developed in Phase I. Project Narrative: Electricity independence provided by our electricity-generating backpack is extremely important to disaster relief workers, forest fire fighters, field-scientists, explorers, environmental testers, and some first responders, all of whom who must function off the electric-grid. There are equally compelling health applications in Developing Countries. A large portion of the world population lives their whole lives off the electrical-grid: Hence, their drinking water is often contaminated with pathogens, they have no routine medical testing, nor access to vaccines and medicines that must be refrigerated. Many portable, low power devices have been developed, and the backpack can provide the missing small source of electricity for: sterilizing water (UV; SteriPen), helping refrigerate vaccines, simple diagnostic tests, and communications in the case of emergencies.

描述（由申请人提供）： 项目摘要/摘要：人类越来越依赖技术，特别是电子设备。在过去的十年中，电子设备变得更加移动，使人们能够在城市或荒野中移动时使用医疗设备、蜂窝/卫星电话、笔记本电脑和 GPS。目前，所有这些设备都使用电池，电池的使用寿命有限，并且增加了设备的相当大的重量。电池有限的使用寿命和大重量的结合对于救灾人员、急救人员、野外科学家和长期探险的探险家来说尤其重要。这些人通常必须携带沉重的背包（> 80 磅），其中大部分重量是更换电池。已投入数百万美元用于开发便携式和可再生的人类产生的能源，但尚未找到解决方案。为了解决这个问题，我们开发了一种无源装置——悬浮负载背包，它可以在行走过程中提取机械能，然后将其转化为电能。当携带 80 磅的负载时，个人可以产生超过 7 W 的电力，而当携带 40 磅的负载时，可以产生大约 2 W 的电力。这很重要，因为之前发表的尝试将设备安装在鞋子中，产生的功率减少了约 300 倍（约 20 W）。我们的背包产生的电力可以用于实时为设备供电，并为电池充电。有趣的是，代谢实验表明，发电仅使代谢率提高 2-3%，实际上降低了携带负载的能量成本。此外，由于减少了对身体的作用力，悬挂负载背包比标准背包在人体工程学上更舒适，因此应该减少常见的骨科损伤。由于背包每年带来 2.95 亿美元的业务，因此发电背包具有巨大的商业价值。为了将“概念验证”商业化，需要额外的创新设计/工程。具体目标1：减轻悬挂式发电背包的重量。具体目标 2：建立发电背包的数学/计算模型。具体目标 3：开发控制阻尼、为便携式设备供电和充电存储设备的电路。该设备在发展中国家也有同样引人注目的健康/社会应用。世界上很大一部分人口的生活离不开电网。因此，他们的饮用水经常受到病原体污染，他们无法进行常规医学检测，也无法获得疫苗。已经开发了许多便携式低功耗设备，它们可以提供很大的改进，但缺少的是少量的电力来源。该背包可以提供足够的电力：使用便携式紫外线灯（SteriPen）对水进行消毒，帮助提供必要的疫苗冷藏、简单的诊断测试以及紧急情况下的通信设备。在第二阶段，将利用第一阶段改进的技术和理解，开发一种新的、更轻、更高效的原型并进行临床测试。 项目叙述：我们的发电背包提供的电力独立对于救灾极其重要工人、森林消防员、现场科学家、探险家、环境测试员和一些急救人员，所有这些人都必须在没有电网的情况下工作。发展中国家也有同样引人注目的健康应用。世界上很大一部分人口一生都脱离电网生活：因此，他们的饮用水经常受到病原体污染，他们无法进行常规医学检测，也无法获得必须冷藏的疫苗和药物。许多便携式低功耗设备已经被开发出来，背包可以提供所缺少的小电力来源：消毒水（紫外线；SteriPen）、帮助冷藏疫苗、简单的诊断测试以及紧急情况下的通信。