Measurement and Analysis of Summer Thermal Environment of Arcaded Pedestrian Space on a Pedestrian Street in the Lingnan Hot-Humid Region

2013 ◽  
Vol 671-674 ◽  
pp. 2652-2658 ◽  
Author(s):  
Yi Zhang ◽  
Jiang He
Keyword(s):  
Thermal Environment ◽  
Measurement Data ◽  
Temperature Variations ◽  
Thermal Environments ◽  
Existing Problems ◽  
Humid Region ◽  
Measurement And Analysis ◽  
Globe Temperature ◽  
Pedestrian Space ◽  
Pedestrian Street

Through summertime measurements at selected points, this paper presents the thermal environment data including air temperature and relative humidity, globe temperature and ground suface temperature of pedestrian spaces on Minsheng Road which is a pedestrian street in Nanning, Guangxi, China). The influence of temperature variations in pedestrian passages in front of shops and under arcades, the sun-shaded effect of the street as well as pavement surface temperature on the thermal environment of the arcaded pedestrian streets in the Lingnan hot-humid region is described in the paper. Based on analysis results of measurement data, comfortable thermal environments for arcaded pedestrian paces in the pedestrian streets of the Lingnan region were understood. The existing problems in the thermal environment and thermal comfort of arcaded pedestrian spaces were discussed. Constructive opinions and suggestions were also proposed.

Measurement and Analysis of Indoor Thermal Environment of a Library in the Hot-Summer and Warm-Winter Region of China

2013 ◽  
Vol 671-674 ◽  
pp. 2659-2663
Author(s):  
Kai Qiong Liu ◽  
Hong Juan Liu ◽  
Jiang He
Keyword(s):  
Thermal Environment ◽  
Measurement Data ◽  
Field Measurements ◽  
Air Velocity ◽  
Indoor Thermal Environment ◽  
Warm Winter ◽  
Effective Strategies ◽  
Measurement And Analysis ◽  
Globe Temperature ◽  
Temperature Surface

This paper presents a study on the indoor thermal environment of a library in the hot-summer and warm-winter region using field measurements. 15 measurement points were selected to measure the following thermal parameters: air temperature, globe temperature, surface temperature, relative humidity and air velocity. Analysis of measurement data are described, and effective strategies were proposed from the analysis results for improving the thermal environment of library buildings in the hot-summer and warm-winter region.

scholarly journals Analysis of the Thermal Environment in Pedestrian Space Using 3D Thermal Imaging

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3674 ◽  
Author(s):  
Xuexiu Zhao ◽  
Yanwen Luo ◽  
Jiang He
Keyword(s):  
Thermal Environment ◽  
Measurement Data ◽  
Infrared Camera ◽  
Important Place ◽  
Thermal Images ◽  
Output Surface ◽  
Aerial Vehicle ◽  
Pedestrian Space ◽  
City Models

Pedestrian space is an important place for people’s outdoor activities. Its thermal environment affects pedestrian walking experience, route selection and physical health. This study presents a 3D thermography-based method to analyze and evaluate the spatial distribution of thermal comfort. The proposed 3D thermal image was generated using 3D city models captured by an unmanned aerial vehicle (UAV) and thermal images gathered by an infrared camera. It can visualize construction elements, but also simply output surface temperatures at selected points. This paper described the process of using 3D thermal images to analyze the built environment, and selected two pedestrian spaces as case study objects. Their thermal images and mean radiant temperatures (MRT) were obtained from field measurement data collected by a drone and infrared camera. The following findings were obtained: (a) the MRT difference in the pedestrian space between sunlit and shaded areas was more than 3 °C; (b) the MRT values at the measurement points near vegetation were lower; (c) when the ratio of street height to width (H/W) was larger, the MRT values at all measurement points varied slightly. These findings can be used for the designers to evaluate and improve the thermal environment in pedestrian space.

scholarly journals A Field Study on the Indoor Thermal Environment of the Airport Terminal in Tibet Plateau in Winter

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Jianglong Zhen ◽  
Jun Lu ◽  
Guangqin Huang ◽  
Liyue Zeng ◽  
Jianping Lin ◽  
...  
Keyword(s):  
Relative Humidity ◽  
Thermal Environment ◽  
Vertical Direction ◽  
Outer Zone ◽  
Tibet Plateau ◽  
Indoor Thermal Environment ◽  
Airport Terminal ◽  
Globe Temperature ◽  
Environment Parameters ◽  
Radiant Floor Heating

In order to study the characteristics of indoor thermal environment in the airport terminal in Tibet Plateau with radiant floor heating in winter, a field measurement of the indoor thermal environment was conducted in Lhasa Gonggar Airport terminal 2. First, the unique climate characteristics in Tibet Plateau were analyzed through comparison of meteorological parameters in Beijing and Lahsa. The thermal environment in the terminal was divided into outer zone and inner zone as well as south zone and north zone. Thermal environment parameters including air temperature, black globe temperature, relative humidity in each zone, and inner surface temperature of envelope were measured and analyzed. Meanwhile, temperature and relative humidity in the vertical direction were measured. In addition, PMV and PPD were calculated for evaluating the thermal environment in the terminal. The findings can provide guidance for the design and regulation of thermal environment in terminals in Tibet Plateau in China.

scholarly journals Influence of Lawns on the Summer Thermal Environment and Microclimate of Heritage Sites: A Case Study of Fuling Mausoleum, China

2020 ◽  
Author(s):  
Xiaoyu Wang ◽  
Peng Liu ◽  
Gongwen Xu
Keyword(s):  
Cfd Simulation ◽  
Simulation Analysis ◽  
Thermal Environment ◽  
Measurement Data ◽  
Ground Temperature ◽  
Rapid Urbanization ◽  
Actual Measurement ◽  
Heritage Sites ◽  
Human Thermal Comfort ◽  
The Impact

Abstract The thermal environment and microclimate of heritage sites has been severely impacted by rapid urbanization. This study collected various meteorological measurement data as a reference for computational fluid dynamics (CFD) simulation settings. Then CFD was applied to simulate the impact of lawns on the thermal environment and microclimate of Fuling Mausoleum. We found that lawns and soil can cool the air through evaporation, and thus have a specific cooling effect on the bricked ground. After lawns were planted, the bricked ground temperature decreased by 1.56–17.54°C than that before lawns were planted at 14:00, a decrease of 2.68%–24.20%. Under normal circumstances, when the wind speed or relative humidity increased, the ground temperature dropped. Greenbelt vegetation can adjust the microclimate and human thermal comfort indicators. The consistency of the difference between the actual measurement and the CFD simulation results shows that CFD simulation can thus accurately reflect the internal temperature field distribution if the selection of simulation parameters is reasonable. Theoretical calculation and analysis, experimental measurement research, and modern computer simulation analysis methods applied together constitute a complete system for studying modern physical environmental problems and can provide reliable and economic results.

EFFECT OF THE THERMAL ENVIRONMENT ON COLD RESISTANCE AND GROWTH OF SMALL INFANTS AFTER THE FIRST WEEK OF LIFE

PEDIATRICS ◽  
1968 ◽  
Vol 41 (6) ◽  
pp. 1033-1046 ◽  
Author(s):  
Leonard Glass ◽  
William A. Silverman ◽  
John C. Sinclair
Keyword(s):  
Cold Resistance ◽  
Thermal State ◽  
Thermal Environment ◽  
Test Environment ◽  
Deep Body Temperature ◽  
Abdominal Skin ◽  
Thermal Environments ◽  
Rate Of Increase ◽  
Before And After ◽  
Deep Body

Twelve matched pairs of small (1,001-2,000 gm birth weight) asymptomatic neonates, age 1 week, were placed in either of two frequently recommended thermal environments ("standard": abdominal skin controlled at 35.0°C to approximate the thermal state commonly realized in nurseries for premature infants; "warm": abdominal skin controlled at 36.5°C to approximate thermoneutral condition). Both groups were fed 120 calories/kg/day. Before and after 2 weeks in the test environment, the infants were placed in a simulated room environment-28°C incubator wall—for 1 hour and the change in body temperatures was measured. Cold resistance–the ability to prevent a fall of deep body temperature in the 28°C environment– was significantly greater among infants who had spent 2 weeks in the slightly cooler environment. The rate of increase in body weight and length was significantly faster in the warmer condition.

Testing of the Mars Exploration Rovers to Survive the Extreme Thermal Environments

2007 ◽  
Vol 4 (4) ◽  
pp. 145-154
Author(s):  
Kin F. Man ◽  
Alan R. Hoffman
Keyword(s):  
Thermal Environment ◽  
Extreme Temperature ◽  
System Level ◽  
Thermal Testing ◽  
Mars Exploration ◽  
Thermal Environments ◽  
Diurnal Cycles ◽  
Operational Temperature ◽  
Science Laboratories

NASA's Mars Exploration Rover (MER) project involved delivering two mobile science laboratories (rovers) on the surface of Mars to remotely conduct geologic investigations, including characterization of a diversity of rocks and soils. The rovers were launched separately in 2003 and have been in operation on the surface of Mars since January 2004. The rovers underwent a comprehensive pre-launch environmental assurance program that included assembly/subsystem and system-level testing in the areas of dynamics, thermal, and electromagnetic (EMC), as well as venting/pressure, dust, radiation, and solid-particle (meteoroid, orbital debris) analyses. Due to the Martian diurnal cycles of extreme temperature swings, the susceptible hardware that were mounted outside of the thermal controlled zones also underwent thermal cycling qualification of their packaging designs and manufacturing processes. This paper summarizes the environmental assurance program for the MER project, with emphasis on the pre-launch thermal testing program for ensuring that the rover hardware would operate and survive the Mars surface temperature extremes. These test temperatures are compared with some of the Mars surface operational temperature measurements. Selected anomalies resulting from operating the rover hardware in the Mars extreme thermal environment are also presented.

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