全球变化知识资源中心

Knowledge Resources Center for Global Change


Email:
Passwd
验证:
	换一张
Have you forgotten your password? Stay signed in Log In

globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0095874
论文题名:	Modeling and Simulation of the Transient Response of Temperature and Relative Humidity Sensors with and without Protective Housing
作者:	Keller Sullivan Oliveira Rocha; José Helvecio Martins; Marcio Arêdes Martins; Ilda de Fátima Ferreira Tinôco; Jairo Alexander Osorio Saraz; Adílio Flauzino Lacerda Filho; Luiz Henrique Martins Fernandes
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-5-22
卷:	9, 期:5
语种:	英语
英文关键词:	Humidity ; Polyvinyl chloride ; Vapor pressure ; Simulation and modeling ; Data acquisition ; Turbulence ; Fluid dynamics ; Mass transfer
英文摘要:	Based on the necessity for enclosure protection of temperature and relative humidity sensors installed in a hostile environment, a wind tunnel was used to quantify the time that the sensors take to reach equilibrium in the environmental conditions to which they are exposed. Two treatments were used: (1) sensors with polyvinyl chloride (PVC) enclosure protection, and (2) sensors with no enclosure protection. The primary objective of this study was to develop and validate a 3-D computational fluid dynamics (CFD) model for analyzing the temperature and relative humidity distribution in a wind tunnel using sensors with PVC enclosure protection and sensors with no enclosure protection. A CFD simulation model was developed to describe the temperature distribution and the physics of mass transfer related to the airflow relative humidity. The first results demonstrate the applicability of the simulation. For verification, a sensor device was successfully assembled and tested in an environment that was optimized to ensure fast change conditions. The quantification setup presented in this paper is thus considered to be adequate for testing different materials and morphologies for enclosure protection. The results show that the boundary layer flow regime has a significant impact on the heat flux distribution. The results indicate that the CFD technique is a powerful tool which provides a detailed description of the flow and temperature fields as well as the time that the relative humidity takes to reach equilibrium with the environment in which the sensors are inserted.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0095874&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/19869
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

Files in This Item:

File Name/ File Size	Content Type	Version	Access	License
10.1371journal.pone.0095874.PDF（4254KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Viçosa, Brazil;Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Viçosa, Brazil;Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Viçosa, Brazil;Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Viçosa, Brazil;Departamento de Ingeniería de Alimentos, Universidad Nacional de Colombia, Medellín, Colombia;Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Viçosa, Brazil;Departamento de Engenharia Agrícola, Universidade Federal de Viçosa, Viçosa, Brazil

Recommended Citation:

Keller Sullivan Oliveira Rocha,José Helvecio Martins,Marcio Arêdes Martins,et al. Modeling and Simulation of the Transient Response of Temperature and Relative Humidity Sensors with and without Protective Housing[J]. PLOS ONE,2014-01-01,9(5)

Service
	Recommend this item
	Sava as my favorate item
	Show this item's statistics
	Export Endnote File
Google Scholar
	Similar articles in Google Scholar
	[Keller Sullivan Oliveira Rocha]'s Articles
	[José Helvecio Martins]'s Articles
	[Marcio Arêdes Martins]'s Articles
百度学术
	Similar articles in Baidu Scholar
	[Keller Sullivan Oliveira Rocha]'s Articles
	[José Helvecio Martins]'s Articles
	[Marcio Arêdes Martins]'s Articles
CSDL cross search
	Similar articles in CSDL Cross Search
	[Keller Sullivan Oliveira Rocha]‘s Articles
	[José Helvecio Martins]‘s Articles
	[Marcio Arêdes Martins]‘s Articles
Related Copyright Policies
Null
收藏/分享