Journal of Contemporary Technology and Applied Engineering最新文献

Techniques used to reduce back wall losses of solar stills - A review 减少太阳能蒸馏器后壁损耗的技术综述

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-21 DOI: 10.21608/jctae.2022.158802.1008

M. Younes, W. H. Alawee, A. S. Abdullah, Z. Omara, F. Essa

{"title":"Techniques used to reduce back wall losses of solar stills - A review","authors":"M. Younes, W. H. Alawee, A. S. Abdullah, Z. Omara, F. Essa","doi":"10.21608/jctae.2022.158802.1008","DOIUrl":"https://doi.org/10.21608/jctae.2022.158802.1008","url":null,"abstract":". Access to clean water is being limited throughout the globe day by day. Several illnesses are caused by water supplies that are contaminated or not distilled. Immediately people's necessity is to purify water without impacting the environment. Solar distillation is an extremely clean distillation in a water treatment procedure. Solar still is among the methods for water purification that produce potable water. Several atmospheric and operational factors require the still lay-out to be augmented. As is commonly known, the vertical sides of the SS become hotter as solar radiation hits them, and the high temperature area resulted in considerable energy losses to the surroundings. To increase the profitability of solar stills, researchers have investigated a variety of models. Throughout its experiments, the solar still with rotating components has been regarded as a reliable and efficient system. Throughout this comprehensive review, we presented, clarified, and analyzed the status of various techniques used to reduce losses of back wall of solar stills solar distillers, for instance rotating wick, vertical wick, drum, trays, discs... etc. Diverse outcomes (highest daily output & improvement) demonstrated the significance of rotating parts, including vertical wick distiller (7.2 L/m 2 /d & 154%), moving wick solar still (9.17 L/m 2 /d & 315%), drum distiller (9.22 L/m 2 /d & 350%), and vertical disc distiller (16.5 L/m 2 /d & 617.4%).","PeriodicalId":433665,"journal":{"name":"Journal of Contemporary Technology and Applied Engineering","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130875982","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: 4

The infrared suppression and cooling by utilizing ejectors 利用喷射器进行红外抑制和冷却

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-21 DOI: 10.21608/jctae.2022.160264.1010

Z. Omara

引用次数: 0

Effect of Aluminum Alloy Sheets on structural behaviour of RC Beams 铝合金板对RC梁结构性能的影响

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-21 DOI: 10.21608/jctae.2022.148155.1005

S. Fayed

引用次数: 0

Towards Computational analysis methods and graphical displays in urban design education: case study site analysis course in Kafrelsheikh university 城市设计教育中的计算分析方法和图形展示:Kafrelsheikh大学场地分析课程案例研究

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-21 DOI: 10.21608/jctae.2022.146302.1003

D. Elsayed

引用次数: 0

Testing the trays solar stills with yellow sand beds and reflectors 用黄沙床和反射器测试托盘式太阳能蒸馏器

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-21 DOI: 10.21608/jctae.2022.158806.1009

F. Essa, A. S. Abdullah, U. Alqsair, W. H. Alawee, Z. Omara, M. Younes

{"title":"Testing the trays solar stills with yellow sand beds and reflectors","authors":"F. Essa, A. S. Abdullah, U. Alqsair, W. H. Alawee, Z. Omara, M. Younes","doi":"10.21608/jctae.2022.158806.1009","DOIUrl":"https://doi.org/10.21608/jctae.2022.158806.1009","url":null,"abstract":". Solar still (SS) are systems powered by solar energy that can provide drinkable water, however it has a low production issue. A solar distiller's production is influenced by a variety of factors. The water depth and thermal storage beds are the most influential factors. During rainy or cloudy days (sunlight is not available) a SS cannot work in its original state. During daylight hours, the SS can be powered utilizing energy saved in thermal storage materials. This paper aims to increasing water production from brackish water or seawater using renewable energies via a system of solar desalination. An experimental work for sand beds trays solar still (TSS) was performed to enhance performance of TSS, the yellow sand used as thermal storage materials. The effects of sandy bed height (1, 2 and 3 cm) and reflectors on the TSS performance were studied. Results revealed that the sandy layer (heat storage beds) improves the TSS productivity. The maximum increase in accumulated production of sandy TSS with internal and external reflectors was reached at sand beds height of 1 cm. In this case the daily production of TSS was improved by 112% over CSS.","PeriodicalId":433665,"journal":{"name":"Journal of Contemporary Technology and Applied Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127500716","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: 1

The most suitable place for the construction of an international airport in Egypt's Delta region 最适合建设国际机场的地点在埃及的三角洲地区

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-21 DOI: 10.21608/jctae.2022.143848.1001

nourhan lotfy

引用次数: 0

Topological kernel of sets and application on fractals 集的拓扑核及其在分形上的应用

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-08 DOI: 10.21608/jctae.2022.143392.1000

A. E. F. El Atik, A. Nasef

引用次数: 1

Effects of surface injection or ejection at various angles on the heat transfer and flowfield in a rectangular channel 不同角度表面喷射对矩形通道内传热和流场的影响

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-07 DOI: 10.21608/jctae.2022.160463.1011

Z. Omara

引用次数: 0

Factors affecting the performance enhancement of a parabolic trough collector utilizing mono and hybrid nanofluids: A mini review of recent progress and prospects 利用单一和混合纳米流体提高抛物槽集热器性能的影响因素:近期进展和前景综述

Journal of Contemporary Technology and Applied Engineering Pub Date : 2022-09-07 DOI: 10.21608/jctae.2022.152256.1007

S. Sharshir

引用次数: 2