Scientific Review Engineering and Environmental Sciences最新文献_第3页

Testing the performance of a solar energy cooling system in Baghdad city 在巴格达市测试太阳能冷却系统的性能

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-07-05 DOI: 10.22630/PNIKS.2021.30.2.24

Muna Ahmed, Ali Al-Salihi, Hazim Hussain

{"title":"Testing the performance of a solar energy cooling system in Baghdad city","authors":"Muna Ahmed, Ali Al-Salihi, Hazim Hussain","doi":"10.22630/PNIKS.2021.30.2.24","DOIUrl":"https://doi.org/10.22630/PNIKS.2021.30.2.24","url":null,"abstract":"Renewable energy resources have become a promissory alternative to overcome the problems related to atmospheric pollution and limited sources of fossil fuel energy. The technologies in the field of renewable energy are used also to improve the ventilation and cooling in buildings by using the solar chimney and heat exchanger. This study addresses the design, construction and testing of a cooling system by using the above two techniques. The aim was to study the effects of weather conditions on the efficiency of this system which was installed in Baghdad for April and May 2020. The common weather in these months is hot in Baghdad. The test room of the design which has a size of 1 m3 was situated to face the geographical south. The test room is thermally insulated and connected to a solar chimney which generates a convection current to draw the air out of the room through a heat exchanger. The heat exchanger was submerged in a water tank of 2 m length, 1 m width and 1 m height. It was also covered with a layer of soil mixture with a thickness of 10 cm. The experiment simulates the natural conditions of a shallow water surface, connected to the room from the other side. The study results revealed that the air temperature inside the test room was lower than that of the ambient air outside. Pearson correlation coefficient showed that there was a strong direct relationship between solar radiation, temperature and wind speed from one side and the cooling efficiency from the other side. Also, there was a negative correlation between relative humidity and cooling efficiency.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68304083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Verification of strength resistance of sandy soil using small scale penetrometer tests 用小尺度贯入试验验证沙土的强度抗力

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-07-05 DOI: 10.22630/PNIKS.2021.30.2.26

Hiba Saleem, Asad H. Aldefae, Wissam H. Humaish

引用次数: 1

Factors influencing the transformation of Iraqi holy cities: the case of Al-Najaf 影响伊拉克圣城转变的因素:以纳杰夫为例

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-07-05 DOI: 10.22630/PNIKS.2021.30.2.31

S. Farhan, Venus Akef, Daniela Anton, K. Hashim, S. Zubaidi

引用次数: 21

Optimization of the semi-active vibration absorbers 半主动减振器的优化设计

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-07-05 DOI: 10.22630/PNIKS.2021.30.2.28

V. Snitynskyy, B. Diveyev, Yewhen Fornalchyk, Orest Horbay, Ruslan Humenuyk, I. Kernytskyy, Y. Sholudko

引用次数: 0

Patterns of relationship between PM10 from air monitoring quality station and AOT data from MODIS sensor onboard of Terra satellite 大气质量监测站PM10与Terra卫星MODIS传感器AOT数据的关系模式

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-07-05 DOI: 10.22630/PNIKS.2021.30.2.20

Winai Suriya, P. Chunpang, T. Laosuwan

{"title":"Patterns of relationship between PM10 from air monitoring quality station and AOT data from MODIS sensor onboard of Terra satellite","authors":"Winai Suriya, P. Chunpang, T. Laosuwan","doi":"10.22630/PNIKS.2021.30.2.20","DOIUrl":"https://doi.org/10.22630/PNIKS.2021.30.2.20","url":null,"abstract":"Thailand, especially in the northern region, often encounters the problem of having PM10 exceeding the normal standard level, which could do harm to people’s health. Mostly, such problem is caused by the burning of forest area and open area; this is clearly seen during January–April of every year. Also, the problem as mentioned is caused by the meteorological conditions and the terrains in the northern region that make it easy for PM10 to be accumulated. The aim of this study was to analyze the patterns of relationship between PM10 measured from the ground monitoring station and AOT data received from MODIS sensor onboard of Terra satellite in Phrae Province located in the northern region of Thailand. The method performed was by analyzing the correlation between PM10 data obtained from the ground monitoring station and the AOT data received from the MODIS sensor onboard of Terra satellite during January–April 2018. It was found from the study that the change of the intensity of PM10 and AOT in the climate was highly related; it appeared that the correlation coefficient (r) in January–April was 0.92, 0.91, 0.91 and 0.92, respectively. This research pointed out that during February– –April, the areas of Phrae Province had the level of PM10 that affected health. Besides, from the method in this research, it revealed AOT data received from MODIS sensor onboard of Terra satellite could be applied in order to follow up, monitor, and notify the spatial changes of PM10 efficiently.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49436824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Experimental investigation on the post-fire performance of reactive powder concrete columns 活性粉末混凝土柱火灾后性能试验研究

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-07-05 DOI: 10.22630/PNIKS.2021.30.2.27

M. Kadhum, Mustafa S. Abdulraheem, Yousif Funfakh, M. Gkantou, Z. Mahdi, Zaid Mohammed

引用次数: 1

Characteristics of interconnections of construction sector and environment: regional study of Ukraine 建筑部门与环境相互联系的特点:乌克兰区域研究

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-07-05 DOI: 10.22630/PNIKS.2021.30.2.29

A. Mokiy, O. Ilyash, Mariia Pikh, Rostyslav Pynda, Yuriy Pynda

{"title":"Characteristics of interconnections of construction sector and environment: regional study of Ukraine","authors":"A. Mokiy, O. Ilyash, Mariia Pikh, Rostyslav Pynda, Yuriy Pynda","doi":"10.22630/PNIKS.2021.30.2.29","DOIUrl":"https://doi.org/10.22630/PNIKS.2021.30.2.29","url":null,"abstract":"The proposed modelling of the relationship between the spatial and component structure of the construction industry development and the environment helped to obtain combinations of high and medium levels of the impact of integral indicators of labour, productive and foreign economic components of the construction sector on the environmental index of the region. The high level of adaptability of the models used for the period 2013– –2018 confirms the relationship between the development of the construction sector in most regions of Ukraine and the lowest level of the ecological index. This proves the scientific hypothesis about the negative impact of construction on the country’s ecosystem. The study indicates that the dynamic characteristics of the relationship between the building system and the environment should take into account the existence of direct and indirect or even “hidden” relationships between the components. The scientific value of the study consists in using models of fuzzy sets to assess the relationship between the construction system and the ecosystem based on defuzzification, which preserves the flexibility of the process of assessing the development of subsystems in construction and making decisions as to reducing the negative environmental impact in regions.","PeriodicalId":38397,"journal":{"name":"Scientific Review Engineering and Environmental Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68304159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

An enhanced krill herd optimization technique used for classification problem 一种用于分类问题的改进磷虾群优化技术

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-06-25 DOI: 10.22630/PNIKS.2021.30.2.30

Firas Al-Mashhadani, Ibrahim Al-Jadir, Qusay S. Alsaffar

引用次数: 0

MgAl-LDH-biochar composites as a green sorbent for lead removal from water mgal - ldh -生物炭复合材料作为水中铅的绿色吸附剂

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-06-25 DOI: 10.22630/PNIKS.2021.30.2.21

I. Idan, Jawad Al-Rifaie, H. Ewadh

引用次数: 0

Study on the utilization of electrocoagulation concept as a disinfectant substitute in hospital wastewater 电凝概念作为医院废水消毒替代品的应用研究

Scientific Review Engineering and Environmental Sciences Pub Date : 2021-06-25 DOI: 10.22630/PNIKS.2021.30.2.22

Elanda Fikri, Nanny Djuhriah, N. Hanurawaty

引用次数: 0