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办公建筑LED照明空间的光环境提升需求研究 CQVIP
期刊论文 | 2021 , 37 (4) , 19-25,32 | 梁青璇
摘要&关键词 引用

摘要 :

办公建筑LED照明空间的光环境提升需求研究

关键词 :

办公建筑 办公建筑 光环境提升 光环境提升 生理等效照度 生理等效照度 LED LED 室内光环境 室内光环境

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GB/T 7714 梁青璇 , 陈雅倩 , 罗涛 et al. 办公建筑LED照明空间的光环境提升需求研究 [J]. | 梁青璇 , 2021 , 37 (4) : 19-25,32 .
MLA 梁青璇 et al. "办公建筑LED照明空间的光环境提升需求研究" . | 梁青璇 37 . 4 (2021) : 19-25,32 .
APA 梁青璇 , 陈雅倩 , 罗涛 , 夏麟 , 叶谋杰 , 薛鹏 et al. 办公建筑LED照明空间的光环境提升需求研究 . | 梁青璇 , 2021 , 37 (4) , 19-25,32 .
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办公建筑LED照明空间的光环境提升需求研究 CSCD
期刊论文 | 2021 , 37 (04) , 19-25,32 | 建筑科学
摘要&关键词 引用

摘要 :

随着LED照明及其调光调色功能的普及,提高办公人员对室内不同光环境空间的主观体验已成为可能。本文对北京、上海现有办公建筑的办公室、会议室、走廊等光环境空间进行实测,结合对室内人员的主观调研,提出一种面向办公建筑LED照明环境质量提升的客观指标识别方法。在满足现有标准的样本中,以办公室为例,通过主客观数据分析发现,工作面照度和空间亮度更受办公人员关注,空间亮度系数、垂直照度和生理等效照度已成为现有标准外的重要评价指标,体现其等级提升的阈值应分别定为10 lx、150 lx和300 lx。办公建筑中不同光环境场景存在需求差异,均可通过此方法识别归因客观指标及其阈值。研究同时发现,针对主观感受,指标...

关键词 :

LED LED 光环境提升 光环境提升 办公建筑 办公建筑 室内光环境 室内光环境 生理等效照度 生理等效照度

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GB/T 7714 梁青璇 , 陈雅倩 , 罗涛 et al. 办公建筑LED照明空间的光环境提升需求研究 [J]. | 建筑科学 , 2021 , 37 (04) : 19-25,32 .
MLA 梁青璇 et al. "办公建筑LED照明空间的光环境提升需求研究" . | 建筑科学 37 . 04 (2021) : 19-25,32 .
APA 梁青璇 , 陈雅倩 , 罗涛 , 夏麟 , 叶谋杰 , 薛鹏 et al. 办公建筑LED照明空间的光环境提升需求研究 . | 建筑科学 , 2021 , 37 (04) , 19-25,32 .
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Effect of moisture on the thermal performance of exterior walls in the tropical islands of the South China Sea SCIE
期刊论文 | 2021 , 186 | APPLIED THERMAL ENGINEERING
WoS核心集被引次数: 6
摘要&关键词 引用

摘要 :

Accurate evaluation of the moisture effect on the thermal performance of building envelopes is essential to facilitate energy-saving building design in hot and humid climate areas. However, in extremely hot and humid climate areas, the coupled effect between the heat and moisture transfer is mostly neglected and a method to evaluate the moisture effect on the thermal performance has never been proposed. Thus, in this paper, a model is developed to simulate the coupled heat and moisture transfer inside an exterior wall subjected to extremely hot and humid climate. This model is validated using three benchmark tests and shows high accuracy. Based on the model, the effect of the moisture on the thermal performance of exterior walls in the tropical islands is firstly investigated quantitatively. The results show that moisture can substantially affect the thermal performance of an exterior wall. Neglecting the moisture effect, the total load is underestimated by 6.04-7.33%. Considering the moisture effect, the decrement factor is improved from 26.27-38.28 to 79.40-114.41 and the time lag is prolonged by 71-79 min. Finally, to clarify the spatiotemporal dynamic pattern of the moisture effect, a comparison between the four tropical islands and the continental city is performed.

关键词 :

Conduction load Conduction load Coupled heat and moisture transfer Coupled heat and moisture transfer Dynamic thermal response Dynamic thermal response Extremely hot and humid climate Extremely hot and humid climate Thermal performance Thermal performance

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GB/T 7714 Li, Fuxiang , Li, Qiong , Meng, Qinglin et al. Effect of moisture on the thermal performance of exterior walls in the tropical islands of the South China Sea [J]. | APPLIED THERMAL ENGINEERING , 2021 , 186 .
MLA Li, Fuxiang et al. "Effect of moisture on the thermal performance of exterior walls in the tropical islands of the South China Sea" . | APPLIED THERMAL ENGINEERING 186 (2021) .
APA Li, Fuxiang , Li, Qiong , Meng, Qinglin , Liu, Jingyi , Mao, Huijun , Xie, Jingchao et al. Effect of moisture on the thermal performance of exterior walls in the tropical islands of the South China Sea . | APPLIED THERMAL ENGINEERING , 2021 , 186 .
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Environmental perceptions, mental performance, and physiological responses of people with respiratory allergies exposed to reduced Indoor Air Quality. PubMed
期刊论文 | 2021 | Indoor air
摘要&关键词 引用

摘要 :

To investigate the need of allergic population for indoor environment quality, exposure effects of poor air quality on subjects with respiratory allergies were compared with those on healthy people, including perceptual responses, health symptoms, mental performance, and physiological responses. The experimental intervention was with and without ventilation at thermally neutral rooms, creating two exposure conditions indicated by CO2 concentration ranges of 502 to 3297 ppm (2438 ± 1527 ppm) and 517 to 5687 ppm (3615 ± 1527 ppm). 63 subjects (32 allergic subjects and 31 non-allergic subjects) were exposed to both conditions for 3 hours. The main results suggested that, compared with healthy people, people with respiratory allergy seem to be more sensitive or less acceptable to reduced air quality polluted by occupants during instantaneous exposure. Besides, the allergic group performed worse in cognitive tests than non-allergic group. After 3 hours of continuous exposure, people with respiratory allergy reported stronger intensity of respiratory irritations and seemed to suffer more inflammation indicated by a higher level of interleukin 1L-1β.

关键词 :

CO2 concentration CO2 concentration human bioeffluents human bioeffluents mental performance mental performance odor perception odor perception physiological responses physiological responses respiratory allergic people respiratory allergic people

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GB/T 7714 Zhang Xiaojing , Li Dandan , Xie Jingchao et al. Environmental perceptions, mental performance, and physiological responses of people with respiratory allergies exposed to reduced Indoor Air Quality. [J]. | Indoor air , 2021 .
MLA Zhang Xiaojing et al. "Environmental perceptions, mental performance, and physiological responses of people with respiratory allergies exposed to reduced Indoor Air Quality." . | Indoor air (2021) .
APA Zhang Xiaojing , Li Dandan , Xie Jingchao , Liu Jiaping . Environmental perceptions, mental performance, and physiological responses of people with respiratory allergies exposed to reduced Indoor Air Quality. . | Indoor air , 2021 .
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Y Evidence for lack of transmission by close contact and surface touch in a restaurant outbreak of COVID-19 SCIE
期刊论文 | 2021 , 83 (2) , 207-216 | JOURNAL OF INFECTION
WoS核心集被引次数: 41
摘要&关键词 引用

摘要 :

Background: Coronavirus disease 2019 (COVID-19) is primarily a respiratory disease that has become a global pandemic. Close contact plays an important role in infection spread, while fomite may also be a possible transmission route. Research during the COVID-19 pandemic has identified long-range airborne transmission as one of the important transmission routes although lack solid evidence. Methods: We examined video data related to a restaurant associated COVID-19 outbreak in Guangzhou. We observed more than 40,000 surface touches and 13,00 0 episodes of close contacts in the restaurant during the entire lunch duration. These data allowed us to analyse infection risk via both the fomite and close contact routes. Results: There is no significant correlation between the infection risk via both fomite and close contact routes among those who were not family members of the index case. We can thus rule out virus transmission via fomite contact and interpersonal close contact routes in the Guangzhou restaurant outbreak. The absence of a fomite route agrees with the COVID-19 literature. Conclusions: These results provide indirect evidence for the long-range airborne route dominating SARSCoV-2 transmission in the restaurant. We note that the restaurant was poorly ventilated, allowing for increasing airborne SARS-CoV-2 concentration. (C) 2021 The British Infection Association. Published by Elsevier Ltd. All rights reserved.

关键词 :

Airborne Airborne Close contact Close contact Covid-19 Covid-19 Fomite Fomite Human behavior Human behavior

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GB/T 7714 Zhang, Nan , Chen, Xuguang , Jia, Wei et al. Y Evidence for lack of transmission by close contact and surface touch in a restaurant outbreak of COVID-19 [J]. | JOURNAL OF INFECTION , 2021 , 83 (2) : 207-216 .
MLA Zhang, Nan et al. "Y Evidence for lack of transmission by close contact and surface touch in a restaurant outbreak of COVID-19" . | JOURNAL OF INFECTION 83 . 2 (2021) : 207-216 .
APA Zhang, Nan , Chen, Xuguang , Jia, Wei , Jin, Tianyi , Xiao, Shenglan , Chen, Wenzhao et al. Y Evidence for lack of transmission by close contact and surface touch in a restaurant outbreak of COVID-19 . | JOURNAL OF INFECTION , 2021 , 83 (2) , 207-216 .
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Investigation of fungal contamination in urban houses with children in six major Chinese cities: Genus and concentration characteristics SCIE
期刊论文 | 2021 , 205 | BUILDING AND ENVIRONMENT
WoS核心集被引次数: 5
摘要&关键词 引用

摘要 :

Indoor fungi, as an important group of biological contaminants, are recognized as risk factors for human health. However, limited data are currently available on fungal pollution in houses of China. In this study, fungi in air, in settled dust and on surfaces in urban houses with children are determined in six major cities of China. Aspergillus spp., Penicillium spp. and Cladosporium spp. are the most frequent genera and are the dominant genera in air. The concentrations of these three fungi account for an average percentage of 87% and 83% of the total concentration of airborne fungi in winter and summer. Unlike airborne fungi, there is no particularly obvious dominant fungal genus in settled dusts and on interior surfaces. The average concentration of total airborne fungi in houses in summer is significantly higher (p < 0.001) than that in winter. In terms of total concentration of airborne fungi, indoor sources significantly contribute to indoor airborne fungi in winter, whereas the contribution of outdoor sources is relatively greater in summer. Average concentration of airborne fungi in northern houses is higher than that in southern houses in both summer and winter. Fungal concentrations in air, in settled dust and on interior surface do not show a strong relationship (r < 0.5), thus air, dust and surface sampling may be all essential to evaluate indoor fungal exposure. The findings of this study are favorable for understanding fungal exposure in houses and can provide bases for establishing control strategies for indoor fungi in China.

关键词 :

Children Children China China Fungi Fungi Houses Houses Indoor environment Indoor environment Microorganism Microorganism

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GB/T 7714 Fan, Guangtao , Xie, Jingchao , Yoshino, Hiroshi et al. Investigation of fungal contamination in urban houses with children in six major Chinese cities: Genus and concentration characteristics [J]. | BUILDING AND ENVIRONMENT , 2021 , 205 .
MLA Fan, Guangtao et al. "Investigation of fungal contamination in urban houses with children in six major Chinese cities: Genus and concentration characteristics" . | BUILDING AND ENVIRONMENT 205 (2021) .
APA Fan, Guangtao , Xie, Jingchao , Yoshino, Hiroshi , Yanagi, U. , Zhang, Huibo , Li, Zhenhai et al. Investigation of fungal contamination in urban houses with children in six major Chinese cities: Genus and concentration characteristics . | BUILDING AND ENVIRONMENT , 2021 , 205 .
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Research on residential thermal environment differences in relation to transition and heating periods in Beijing EI
期刊论文 | 2021 , 197 | Building and Environment
摘要&关键词 引用

摘要 :

In Beijing, municipal central heating is normally scheduled from 15 November each year and energy consumption for space heating is growing rapidly. This field study aimed to investigate residential thermal environment and its effects on subjective thermal responses and behavior adjustments in cold climate. The investigation was conducted in 12 apartment houses in six communities in Beijing from October to December 2019, involving both transition period before the space heating and heating period after the space heating. Indoor environmental parameters were collected by self-recording instruments, while heating equipment, subjective evaluations and adaptive behaviors were obtained though paper questionnaires. The results demonstrated that average air temperature in bedrooms of transition period was 19.5 ± 1.3 °C, significantly lower than 22.9 ± 1.9 °C in heating period. Moreover, there are large variations in indoor thermal environments among the heating systems/equipment. During heating, the interior air in houses was overheated (>24 °C) and low humidity( © 2021 Elsevier Ltd

关键词 :

Apartment houses Apartment houses Energy conservation Energy conservation Energy utilization Energy utilization Houses Houses Space heating Space heating Surveys Surveys Thermal comfort Thermal comfort

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GB/T 7714 Yin, Peng , Ji, Ying , Xie, Jingchao et al. Research on residential thermal environment differences in relation to transition and heating periods in Beijing [J]. | Building and Environment , 2021 , 197 .
MLA Yin, Peng et al. "Research on residential thermal environment differences in relation to transition and heating periods in Beijing" . | Building and Environment 197 (2021) .
APA Yin, Peng , Ji, Ying , Xie, Jingchao , Liu, Jiaping , Hou, Qixian , Zhao, Shanshan . Research on residential thermal environment differences in relation to transition and heating periods in Beijing . | Building and Environment , 2021 , 197 .
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Associations of bedroom air temperature and CO2 concentration with subjective perceptions and sleep quality during transition seasons. PubMed
期刊论文 | 2021 | Indoor air
摘要&关键词 引用

摘要 :

This field study aimed to investigate naturally ventilated bedroom environment and its effects on subjective perception and sleep quality. Totally, 104 healthy subjects living in urban areas of Beijing participated in the study for one night during transition seasons. Bedroom environment parameters, including temperature, relative humidity, and CO2 concentration, were recorded before and during sleep. Objective sleep quality was measured by Fitbit Alta 2, a wrist-type actigraphy sensor. Subjective assessments were collected by paper-based questionnaires on sleep quality and environmental perceptions. The results showed that neutral temperature for waking state (before sleep) was estimated to be 23.8°C while for sleep state it was 26.5°C. Furthermore, pre-sleep thermal sensation vote was found to be positively correlated with deep sleep percentage. Indoor air quality was correlated with sleep quality as indicated by statistically significant correlations between odor intensity assessment, air quality acceptability, average nightly CO2 concentration, and measures of sleep quality. For naturally ventilated bedrooms during transition seasons with a mild outdoor climate, present findings suggest that a bedroom with slightly warm pre-sleep environment than neutral, and with high ventilation as indicated by low indoor CO2 concentration, could be beneficial for sleep quality of residents.

关键词 :

air quality air quality bedroom environment bedroom environment carbon dioxide carbon dioxide field investigation field investigation sleep quality sleep quality thermal comfort thermal comfort

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GB/T 7714 Zhang Xiaojing , Luo Guanzhang , Xie Jingchao et al. Associations of bedroom air temperature and CO2 concentration with subjective perceptions and sleep quality during transition seasons. [J]. | Indoor air , 2021 .
MLA Zhang Xiaojing et al. "Associations of bedroom air temperature and CO2 concentration with subjective perceptions and sleep quality during transition seasons." . | Indoor air (2021) .
APA Zhang Xiaojing , Luo Guanzhang , Xie Jingchao , Liu Jiaping . Associations of bedroom air temperature and CO2 concentration with subjective perceptions and sleep quality during transition seasons. . | Indoor air , 2021 .
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Analysis to energy consumption characteristics and influencing factors of terminal building based on airport operating data SCIE
期刊论文 | 2021 , 44 | SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
WoS核心集被引次数: 2
摘要&关键词 引用

摘要 :

Airport terminals have much higher average energy consumptions than normal public buildings. This is caused by their complicated space features and operation characteristics. In China, large modern airports were built from around 2004, which means our understanding to the real energy performance of these buildings lag behind the design practice and with feedback from operation experience, both design or operation of modern airports shall be improved in terms of energy efficiency. Nanning Airport provided an excellent example for that purpose, with comprehensive operation data collected during 2016-2019. The data were firstly presented in this paper, followed by clustering and correlation analysis to establish the correlation among potential factors. From the analysis, the major factors influencing energy consumption were identified as passenger flow, meteorological parameters and supply fan frequency. Regression analysis was performed based on monthly data and equations were provided for the calculation of the terminal total energy consumption and its three sub components according to the input parameters of passenger flow data and meteorological data. These equations provide guidance on energy supply for the operation of this airport and more importantly can be used as valuable reference when designing airports in similar conditions.

关键词 :

Airport terminal Airport terminal Energy consumption Energy consumption Influencing factors Influencing factors Operation data Operation data Passenger Passenger

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GB/T 7714 Gu Xianliang , Xie Jingchao , Luo Zhiwen et al. Analysis to energy consumption characteristics and influencing factors of terminal building based on airport operating data [J]. | SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS , 2021 , 44 .
MLA Gu Xianliang et al. "Analysis to energy consumption characteristics and influencing factors of terminal building based on airport operating data" . | SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS 44 (2021) .
APA Gu Xianliang , Xie Jingchao , Luo Zhiwen , Liu Jiaping . Analysis to energy consumption characteristics and influencing factors of terminal building based on airport operating data . | SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS , 2021 , 44 .
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Quantitative effects of PM concentrations on spectral distribution of global normal irradiance EI
期刊论文 | 2021 , 220 , 1099-1108 | Solar Energy
摘要&关键词 引用

摘要 :

Daylight refers to a free and valuable resource exhibiting photometric and radiometric features, and the physical parameters commonly used to represent its features are irradiance and illuminance. They are both obtained by the spectral power distribution (SPD) of global irradiance, demonstrating that values noticeably affect indoor thermal and luminous environments. Nevertheless, outdoor particulate matter (PM) significantly affects SPD conditions, and two relative spectral notions, i.e., percentage of spectral irradiance (PSIr) and percentage of spectral illuminance (PSIl), were proposed to study the effects of PM10 concentrations in radiometry and photometry with a field measurement, Beijing. As a result, the strong impact of PM10 on PSIr/ PSIl can be noticed in the range (380 to 540 nm) (P-value 10 and PSIr/ PSIl based on regression analysis. With this wavelength, PSIr varies from 0.29 to 0.25%, and PSIl ranges from 0.48 to 0.42% with the increase of PM10 concentrations from 0.01 to 0.098 mg/m3. With the verification of the model, several bands were further analyzed to comprehensively verify the monotonic correlations, and the band ranging 480 ~ 520 nm were reasonably proved that PSIr/PSIl and PM10 can be well indicated by each other. As influenced by the complexity of spectral transmittance through the glazing, the mutual characterization between solar spectrum and particulate matters can contribute to the building energy-efficient design and develop indoor thermal and luminous environment research in the future. © 2020 International Solar Energy Society

关键词 :

Energy efficiency Energy efficiency Iridium compounds Iridium compounds Lighting Lighting Photometry Photometry Radiometry Radiometry Regression analysis Regression analysis

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GB/T 7714 Ye, Sheng , Xue, Peng , Fang, Wanying et al. Quantitative effects of PM concentrations on spectral distribution of global normal irradiance [J]. | Solar Energy , 2021 , 220 : 1099-1108 .
MLA Ye, Sheng et al. "Quantitative effects of PM concentrations on spectral distribution of global normal irradiance" . | Solar Energy 220 (2021) : 1099-1108 .
APA Ye, Sheng , Xue, Peng , Fang, Wanying , Dai, Qi , Peng, Jinqing , Sun, Yuying et al. Quantitative effects of PM concentrations on spectral distribution of global normal irradiance . | Solar Energy , 2021 , 220 , 1099-1108 .
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