Energy and environmental analysis of a solar evacuated tube heat pipe integrated thermoelectric generator using IoT

Manivannan, Sakthi Priya; Gunasekaran, Divya Laxmi; Jaganathan, Gowthami; Natesan, Shanthi; Muthusamy, Sabari Muthu; Kim, Sung Chul; Kumar, Balaji; Poongavanam, Ganesh Kumar; Saravanakumar, Duraisamy

doi:10.1007/s11356-022-19857-w

Cited by 11 publications

(3 citation statements)

References 38 publications

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“…A structured questionnaire was built with 28 assessment factors in five categories (i.e., basic conditions, daily behavior, traditional dwellings, infrastructure, and natural environment) by classifying existing research based on the characteristics of the ethnic group and the specificity of the region (Table 3). The 23 assessment factors under daily behavior, traditional dwelling, infrastructure, and natural environment were divided into five assessment levels [1][2][3][4][5]. Based on the subjective statements of the respondents, their assessment factors were quantitatively converted by the following equation.…”

Section: Questionnaire Surveysmentioning

confidence: 99%

“…Physical health problems (e.g., respiratory infections and strokes) [2,3] and mental health problems, including depression [4] that arises from the living environment (e.g., the living environment) of the elderly, are of particular concern. Furthermore, since the emergence of COVID-19 in 2019, human health has become the focus of global concern, especially the health status of the elderly [5][6][7][8]. Accordingly, a correlation study on the sustainability of the health status of the elderly is warranted.…”

Section: Introductionmentioning

confidence: 99%

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Correlation Analysis of Health Factors of Elderly People in Traditional Miao Dwellings in Western Hunan

Liu

Zhang

et al. 2023

Buildings

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Under the macro context of severe global aging, the typical villages and dwellings of the Miao ethnic group in western Hunan were selected, and the daily life and health status of the local elderly were evaluated through behavioral observation, interviews, and questionnaires (e.g., physiological, psychological, and residential environments). In addition, the health status and relevant evaluation factors of the respondents were correlated and then analyzed using SPSS software. As indicated by the results of this study, the local elderly used all the spaces and functions of the existing dwellings and were satisfied with the spaces except for the toilet. In addition, their physiological functions had declined, and their daily behaviors were affected by a wide variety of physical diseases. From a psychological perspective, more than 60% of the elderly had significant feelings of loneliness and frustration. As indicated by the correlation results, the health status of the elderly in traditional Miao dwellings in western Hunan was positively correlated with family, income, daily acts, dwellings, and infrastructure, and negatively correlated with age. They showed linear correlations with all impact factors: Health = 157.44 − 5.242 ∗ Gender − 1.611 ∗ Age − 0.606 ∗ Education level − 0.411 ∗ Family + 0.001 ∗ Income − 7.191 ∗ Daily acts + 13.621 ∗ Dwelling + 4.682 ∗ Infrastructure + 17.198 ∗ Natural. Based on the results of study, targeted improvement strategies were proposed for the elderly in traditional Miao dwellings in western Hunan from four aspects—infrastructure, traditional dwellings, mental health, and policy support—to improve the health status of the elderly in traditional Chinese villages and towns.

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Section: Questionnaire Surveysmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlation Analysis of Health Factors of Elderly People in Traditional Miao Dwellings in Western Hunan

Liu

Zhang

et al. 2023

Buildings

View full text Add to dashboard Cite

show abstract

“…Physical and psychological disorders in the elderly, such as depression [ 4 ], respiratory infections [ 5 ], asthma [ 6 ], and stroke [ 7 ] are affected by the living environment, especially the residential environment. Meanwhile, due to the occurrence of the novel coronavirus SARS-CoV-2, (responsible for COVID-19) in 2019 [ 8 , 9 ], indoor environmental health has become a worldwide concern [ 10 , 11 ], especially for the elderly. Research on suitable and age-friendly living environments is essential for an age-friendly society.…”

Section: Introductionmentioning

confidence: 99%

The Ancient Town Residential Environment of the Elderly in Xiangxi Tujia: Survey, Questions, and Recommendations

Zhang

Shi

Liu

et al. 2022

IJERPH

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This study uses behavioral observation, interviews, and questionnaire research to investigate the residential environment. It also evaluates the elderly in four representative ancient towns of Xiangxi, namely, Liye Ancient Town, Furong Ancient Town, Liexi Ancient Town, and Xichehe Ancient Town. It includes indoor air (CO2, PM2.5, PM10) and light intensity monitoring for the residential environment. The results showed that the elderly had a significant sense of frustration and loneliness. Of the elderyly, 70% believed the current living environment had an impact on healthy living, and 45% believed the safety and convenience of the living environment should be improved. More than 80% of the elderly were dissatisfied with their indoor acoustic environment, and more than 70% were dissatisfied with their home transportation. More than 85% of the elderly considered traditional wooden components and spaces to be the source of cultural identity. Furthermore, the average indoor PM2.5 concentration during the fire pit fire was 350–600 µg/m3, about 4.7–8 times the Chinese standard value. The average concentration of PM10 in all rooms was more than 400 µg/m3, approximately three times the Chinese standard value. Also, targeted environmental improvement strategies were proposed. The study results provided actual information to develop a systematic approach and a targeted design based on the needs to improve the residential environment of the elderly in ancient cities.

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High‐Performance Thermoelectric Devices Made Faster: Interface Design from First Principles Calculations

Ayachi,

Park,

Ryu

et al. 2023

Advanced Physics Research

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The enormous progress achieved with high‐performance thermoelectric materials has yet to be implemented in high‐performance devices. The bottleneck for this is the material‐specific design of the interface between the thermoelectric material and the electrical connections, particularly identifying suitable contacting electrodes. This has mainly been empirical, slowing down device maturation due to the vast experimental space. To overcome this, an electrode pre‐selection method based on first‐principles electronic structure calculations of charged defect formation energies is established in this work for the first time. Such method allows to predict thermoelectric leg degradation due to impurity diffusion from the electrode into the thermoelectric material and formation of charge carrier traps, causing a majority carrier compensation and performance deterioration. To demonstrate the feasibility of this approach, the charged point defect formation energies of relevant metal electrodes with Mg2(Si,Sn) are calculated. Five hundred ten defect configurations are investigated, and the interplay between intentional doping and electrode‐induced point defects is predicted. These predictions are compared with Seebeck microprobe measurements of local carrier concentrations near the Mg2(Si,Sn)‐electrode interface and a good match is obtained. This confirms the feasibility of electrode screening based on defect formation energy calculations, which narrows down the number of potential electrodes and accelerates device development.

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Energy and environmental analysis of a solar evacuated tube heat pipe integrated thermoelectric generator using IoT

Cited by 11 publications

References 38 publications

Correlation Analysis of Health Factors of Elderly People in Traditional Miao Dwellings in Western Hunan

Correlation Analysis of Health Factors of Elderly People in Traditional Miao Dwellings in Western Hunan

The Ancient Town Residential Environment of the Elderly in Xiangxi Tujia: Survey, Questions, and Recommendations

High‐Performance Thermoelectric Devices Made Faster: Interface Design from First Principles Calculations

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