دانلود رایگان مقاله لاتین حساسیت مدل آسایش حرارتی pmv از سایت الزویر
عنوان فارسی مقاله:
مطالعه حساسیت برای مدل آسایش حرارتی PMV و استفاده از دستگاه های پوشیدنی داده های بیومتریک برای برآورد میزان سوخت و ساز
عنوان انگلیسی مقاله:
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مقدمه انگلیسی مقاله:
1. Introduction
Achieving higher performance at work is of high interest. Thermal comfort that is strongly related to productivity has recently received a great deal of attention. Thermal comfort is a subjective matter and may vary from person to person. There have been multiple attempts to develop a unified and widely accepted thermal comfort model that can be received and adopted by large audiences. The most popular model is the Predicted Mean Vote model (PMV model), which was constructed by P. O. Fanger [1] and was later adapted into the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) Standard 55eThermal Environmental Conditions for Human Occupancy. This model meant to estimate the “average” thermal sensation that a group of people would report when occupying a given space. For that matter it correlates multiple environmental parameters (air temperature, air velocity, relative humidity, and radiant temperature) and the average of personal parameters of group of people (metabolism and clothing) to different levels of comfort based on a rating between 3 and 3, where 3 means the body thermal sensation is very cold and 3 means the body thermal sensation is very hot. Typically, the goal is to control environmental factors in order to keep the PMV value between 0.5 and 0.5, where the body is believed to be thermally satisfied. Since the environmental parameters are relatively easy to measure, they have received a great deal of attention in the literature. Personal parameters, on the other hand, are more difficult to estimate or measure and, therefore, are usually assumed to be constant default values for a group of people (e.g. rest condition [2e5] and summer clothing [2,3,6]), thus missing the opportunity to accommodate comfort variation due to clothing and metabolism. Multiple tables were created to map the metabolic rate and clothing conditions based on occupants activity level and clothing styles [7,8], however, as most buildings don't include any measurement feedback loop from the occupants, one level of activity (metabolism) and one clothing insulation of the occupants is assumed. Much recent work has adapted variable metabolic rate in the PMV calculation. For example, in Ref. [9] the metabolic rate was accurately measured using the medical Vmax encore™ station. It was shown that the metabolic rate of an occupant would change at different ambient temperatures without any change in activity. Ref. [10] studied the effect of thermal, visual, and acoustic factors on the overall comfort. In their case study, the metabolic rate and clothing values were considered by observation and in reference to metabolic rate and clothing tables. High cost and relying on human observations and surveys may limit the use of these methods to estimate metabolism in real time. In this work, we show the use of wearable devices data to provide a continuous feedback ofoccupants' metabolism value. The PMV value can be directly calculated using a system of highly nonlinear and iterative equations, which were later adapted in the ASHRAE Standard 55 [8]:
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کلمات کلیدی:
Sensitivity Analysis for the PMV Thermal Comfort ... - Purdue e-Pubs docs.lib.purdue.edu/cgi/viewcontent.cgi?article=1199&context=ihpbc by MH Hasan - 2016 - Related articles School of Mechanical Engineering. 2016. Sensitivity Analysis for the PMV Thermal Comfort. Model and the Use of Wearable Devices to. Enhance Its Accuracy. [PDF]Sensitivity study for the PMV thermal comfort model and the use of ... iranarze.ir/wp-content/uploads/2016/11/E1252.pdf Oct 17, 2016 - Wearable device. Metabolism. a b s t r a c t. This paper studies the sensitivity of the Predicted Mean Vote (PMV) thermal comfort model relative ... An Urban Approach To Climate Sensitive Design: Strategies for the ... https://books.google.com/books?isbn=1134314892 Rohinton Emmanuel - 2012 - Architecture Busch (1992) studied two groups of office workers in Bangkok, one working in ... and more acceptable to their occupants than those predicted by the PMV model. Measurement Uncertainty Budget of the PMV Thermal Comfort ... link.springer.com/article/10.1007/s10765-015-2011-3 by C Ekici - 2016 - Related articles An example is given for the uncertainty model of PMV in the exemplification section of the study. Sensitivity coefficients were derived from the PMV equation. Measurement Uncertainty Budget of the PMV Thermal Comfort Equation adsabs.harvard.edu/abs/2016IJT....37...48E by C Ekici - 2016 - Related articles An example is given for the uncertainty model of PMV in the exemplification section of the study. Sensitivity coefficients were derived from the PMV equation. Neuroadaptive Systems: Theory and Applications https://books.google.com/books?isbn=1439857997 Magdalena Fafrowicz, Tadeusz Marek, Waldemar Karwowski - 2012 - Medical ... to both repeated grasps and repeated objects that was observed in the study ... within the left PMv and MFG) also have some degree of sensitivity to different ... Issues in Respiratory Research and Practice: 2011 Edition https://books.google.com/books?isbn=1464965242 2012 - Medical “A week after PMV lobeline evoked similar sensations but the threshold dose ... in mitral stenosis indicates role of lobeline-sensitive intrapulmonary receptors. Help: Results: Assessing Comfort with the Predicted Mean Vote help.autodesk.com/.../GUID-C927AFF3-E0F0-4F64-A6D1-BE57DEC12111.htm In this step, we will use the Predicted Mean Vote (PMV) to assess the impact of ... In the Results branch of the Design Study Bar, right click on 1 Volume (under ... Perceiving and Acting in the Real World: From Neural Activity to ... https://books.google.com/books?isbn=2889450287 Simona Monaco, Gavin Buckingham, Irene Sperandio - 2016 In this study, the same movement was repeated several times in one ... areas sensitive to the direction of reaching movements, namely bilateral PMd, mIPS, ... belonging to the dorsolateral ''grasping'' circuit, including PMv (Fabbri et al., 2014).
