دانلود رایگان مقاله لاتین ترموگرافی مادون قرمز از سایت الزویر
عنوان فارسی مقاله:
ترموگرافی مادون قرمز از چهره انسان برای نظارت بر عملکرد تنظیم حرارت و برآورد آسایش حرارتی شخصی
عنوان انگلیسی مقاله:
Infrared thermography of human face for monitoring thermoregulation performance and estimating personal thermal comfort
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Commercial and residential buildings account for 30% of the total energy consumption [1] and 30% of the greenhouse gas emissions in the world [2]. Heating, Ventilation and Air Conditioning (HVAC) systems, which provide thermal comfort and air quality in buildings, account for the largest share of the energy usage and gas emissions (about 50% of the building energy consumption in the developed countries [3]). HVAC systems are usually operated with fixed setpoints based on the recommendations provided by the standards (e.g., ASHRAE Standard 55 [4], ASHRAE Standard 62.1 [5]). These standards for thermal comfort offer models that use few selected parameters (e.g., indoor air temperature, air humidity, clothing, activity) to estimate thermal comfort. However, some of the static and dynamic factors that are influential on thermal comfort are not considered in these models. Factors that are constant over time are the static factors, such as a person's race and gender. Factors that impact an individual's thermal comfort over time are the dynamic factors, such as age, acclimation, prior heat or cold stress, and food intake [6e8]. Even though it is difficult to assess human comfort in real-time due to these factors, building HVAC systems energy consumption can still be optimized while occupants thermal comfort is well-maintained [9] as humans perceive comfort in a range of environmental thermal conditions [10e12]. It is worth mentioning that small thermal comfort related adjustments (e.g., adjusting the temperature set point by 1 C) haveconsiderable impacts on the overall building energy consumption [13,14]. Thermal comfort is defined as the condition of mind [5] and thus it can only be captured by surveying individuals about their comfort. Due to the fact it is not practical for building occupants to communicate their thermal comfort levels via a questionnaire on a continuous basis, researchers have proposed different techniques to correlate environmental or physiological measurements with thermal comfort (usually reported by the occupants via a questionnaire) and use these environmental or physiological measurements for predicting individuals' thermal comfort. Although environmental measurement based techniques have shown promising results to capture thermal comfort in short periods of time, the accuracy of these methods may decay due to environment related logistics (e.g., the sensing devices or occupants' locations may change in time). To address the challenge of occupantenvironment logistics that are dynamic, the techniques based on physiological measurements (e.g., the techniques that use heart rate, skin temperature, and core body temperature [8,15e17]) use the correlated measurements directly from an individual for predicting thermal comfort. If there is no evidence of thermal discomfort, these approaches reject the hypothesis that the individual is uncomfortable. The drawbacks of these techniques is that they require the sensors to be attached to the human body, making them invasive.
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کلمات کلیدی:
Search Results Infrared thermography of human face for monitoring thermoregulation ... www.sciencedirect.com/science/article/pii/S0360132316303456 by A Ghahramani - 2016 - Cited by 5 - Related articles Nov 15, 2016 - In this paper, we present a novel infrared thermography based technique to monitor an individual's thermoregulation performance and thermal comfort levels by measuring the skin temperature on several points on human face, which has a high density of blood vessels and is not usually covered by clothing. The use of infrared thermography to detect the skin temperature ... iopscience.iop.org/article/10.1088/1742-6596/655/1/012062/pdf by G Tanda - 2015 - Cited by 4 - Related articles In this paper, infrared thermography is used to investigate ... The role of skin blood flow, vital to the human thermoregulatory control [5], can be inferred in ... vasodilation will face a reduction in performance during the exercise due to ... exercise; heart rate was continuously monitored by means of a standard ECG device. Infrared thermography of human face for monitoring thermoregulation ... www.docsshow.com › Engineering Dec 17, 2016 - Sonny Astani Dept. of Civil and Environmental Engineering, Viterbi School of Engineering, Univ. of Southern California, KAP 217, 3620 South ... Infrared thermography of human face for monitoring thermoregulation ... https://www.infona.pl/.../bwmeta1.element.elsevier-56ad7021-dc09-3629-a0ec-dd172b0... by A Ghahramani - 2016 - Cited by 5 - Related articles The common practice of defining operational settings for Heating, Ventilation and Air Conditioning (HVAC) systems in buildings is to use fixed set points, which ... Ali Ghahramani - Google Scholar Citations scholar.google.com/citations?user=9UACV-AAAAAJ&hl=en Postdoctoral Scholar, UC Berkeley - berkeley.edu Human-building interaction framework for personalized thermal comfort-driven systems ... Infrared thermography of human face for monitoring thermoregulation ... Infrared thermography of human face for monitoring thermoregulation ... https://www.sparrho.com/.../infrared-thermography-of-human-face-for-monitoring-ther... Sep 11, 2016 - Publication date: Available online 9 September 2016 Source:Building and Environment Author(s): Ali Ghahramani, Guillermo Castro, Burcin ...
