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The Experimental Investigations of Dielectric Barrier Discharge and Pulse Corona Discharge in air cleaning

Plasma Science and Technology 2003年第5期5卷 1961-1964页

作者：左莉侯立安杨林松 Engineering Design&Research Institute of the Second Artillery Corps.Beijing 100011 China Anti Chemical Institute Beijing 102205China

The dielectric barrier discharge (DBD) and pulse corona discharge(PCD) plasma generator was used to remove NH3, H2S, C7H8 etc. from atmosphere. The principle and characteristic of the two ways was discussed in the art... 详细信息

关键词： low temperature plasma dielectric barrier discharge pulse corona discharge air cleaning

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Triboelectric nanogenerator as a new technology for effective PM2.5 removing with zero ozone emission

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Progress in Natural Science:Materials International 2018年第2期28卷 99-112页

作者： Chuan He Zhong Lin Wang Beijing Institute of Nanoenergy and Nanosystems Chinese Academy of Sciences School of Materials Science and Engineering Georgia Institute of Technology CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology (NCNST)

Particles matters(PMs) have raised serious concerns due to their great impact on human health. Coupling triboelectric effect and electrostatic induction, triboelectric nanogenerator(TENG) has demonstrated as a practical sustainable power source for portable devices. The characteristics of TENG, such as high electric field and high output power, make it a promising technology in air cleaning applications. Here, the mechanism of the TENG and its application in self-powered air cleaning technologies are reviewed. Using the TENG as a voltage source, a self-powered air cleaning system for removing SOand PMs is developed; and the removal efficiency of nanofiber filters is greatly enhanced due to electrostatic attraction. More importantly, the technology is not only most effective for removing nano-scale particles that cannot be effectively filtered using conventional fiber-film filters, but also produces no ozone emission. Besides being an independent power supply, a vibration TENG based triboelectric filter is designed to effectively capture the PMs from automobile exhaust fumes. Hence, the TENG demonstrates its great potential in self-powered air cleaning applications.

关键词： Triboelectric nanogenerator Power source Particulate matter air cleaning Nanofiber filter

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Performance and Effectiveness of Portable air Cleaners in an Office Room： An Experimental Study

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Journal of Civil Engineering and Architecture 2015年第7期9卷 757-766页

作者： Siamak Rahimi Ardkapan Alireza Afshari Niels Christian Bergsoe Department of Energy and Environment Danish Building Research Institute Aalborg University Copenhagen 2450 Denmark

Nowadays, many people work in an office environment. air pollutants, including particles and gases, are generated by humans and by different devices that are used in offices. Pollutants can also enter an office room with the air supplied from outdoors. It has been established that air pollutants have adverse health effects on human body. air cleaning devices are commonly marketed as being beneficial for the health by removing air pollutants and consequently improving indoor air quality. The performance of five air cleaning technologies was tested in order to determine the generation of ozone and particles in an office room. The particle removal effectiveness of the technologies was also determined in order to clarify their ability to remove UFPs （ultrafine particles） in the office room. The tested five air cleaning technologies are non-thermal plasma, corona discharge ionizer, portable air purifier, electrostatic fibrous filter and three-dimensional fibrous filter. The interior surfaces of the office room emit low levels of volatile organic compounds, since the office room has not been refurbished for about two decades. The results showed that the particle removal effectiveness of the technologies was ranged between 0.2 and 0.45 for the office room. The three technologies using/generating ozone significantly increased the ozone level in the office room. However, no increase of the UFP concentration was detected.

关键词： air cleaning particle UFP ozone.

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