NanoWorld Journal最新文献_第9页

A New Alluaudite-like Phosphate, Na1.67Co2.45Cr0.78(PO4)3: Synthesis and Crystal Structure 一种新型冲泡状磷酸盐Na1.67Co2.45Cr0.78(PO4)3的合成与晶体结构

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s2-072

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Optimization of Adsorption Parameters for Effective Removal of Basic Yellow Dye 28 from Aqueous Solution by Apatites Using a Factorial Design 用析因设计优化磷灰石对碱性黄色染料28的吸附参数

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s2-068

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Analysis of Heat Transfer Control in CI Engines Fueled with Diesel/Methanol/1-pentanol Blends with Nanoparticles: Enhancing Performance and Lowering Emissions 以含纳米颗粒的柴油/甲醇/戊醇混合物为燃料的 CI 发动机传热控制分析：提高性能、降低排放

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s3-009

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Investigation of Structural and Radiation Shielding Parameters for Lead Pyrophosphate Glasses 焦磷酸铅玻璃结构及辐射屏蔽参数研究

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s2-061

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Synthesis, Characterization and Structural Study of the Novel Phosphate Ag0.4Zn2.8Fe4(PO4)6 新型磷酸盐Ag0.4Zn2.8Fe4(PO4)6的合成、表征及结构研究

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s2-063

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Influence of Alumina Nano Additive on Compression Ignition Engine Characteristics Fueled with Mahua Biodiesel 氧化铝纳米添加剂对以马华生物柴油为燃料的压燃式发动机特性的影响

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s3-013

Murugu Nachippan Nachiappan, P. Sambandam, Parthasarathy Murugesan, Ramasubramanian Shan-mugam, Murugu Nachippan, Nachiappan

{"title":"Influence of Alumina Nano Additive on Compression Ignition Engine Characteristics Fueled with Mahua Biodiesel","authors":"Murugu Nachippan Nachiappan, P. Sambandam, Parthasarathy Murugesan, Ramasubramanian Shan-mugam, Murugu Nachippan, Nachiappan","doi":"10.17756/nwj.2023-s3-013","DOIUrl":"https://doi.org/10.17756/nwj.2023-s3-013","url":null,"abstract":"Alternative internal combustion (IC) engine fuels are being tested due to increased energy consumption and pollutants. Biomass waste, algae, and plant seeds produce alternative energies. Petroleum-based IC engines cause many environmental issues. Thus, adopting an alternative fuel to an engine may require design changes to match conventional fuel performance. Mahua biodiesel and diesel blends with Al 2 O 3 (Alumina) nano additive were tested in a single-cylinder compression ignition engine. Mahua biodiesel and its diesel blends with Al 2 O 3 nano additive were tested in a single-cylinder compression ignition engine. Different fuels tested the engine. Mahua biodiesel blends 10%, 20%, 30%, 40%, and 100% were tested for performance and emissions at varying loads. Compared to other biodiesel blends, 30% Mahua biodiesel + 70% diesel (B30) performed well and had low tailpipe emissions. Nano additive mixed biodiesel was made with 70% diesel, 30% mahua biodiesel, and 10, 40, and 70 ppm nano Al 2 O 3 . The 70-ppm alumina nano additive mixed biodiesel has improved thermal efficiency and lower emissions because nanoparticles improve fuel atomization. BTE (Brake thermal efficiency) and BSFC (Brake specific fuel consumption) of 70 ppm alumina nano blended biodiesel increased 4% and lowered 10%, respectively, compared to diesel. Mahua biodiesel blended biodiesel reduced HC (Hydrocarbon), CO (Carbon monoxide), and NO x (Nitrogen oxides) emissions by 49%, 50%, and 16%, respectively. Nano mixed Mahua biodiesel was a better alternative energy for unmodified CI (Compression ignition) engines.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139334459","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: 0

A Novel Non-stoichiometric Phosphate Ba0.94Co0.81Cr1.84(PO4)3 with the α-CrPO4 Structure: Synthesis and Crystal Structure α-CrPO4结构的新型非化学计量磷酸Ba0.94Co0.81Cr1.84(PO4)3:合成及晶体结构

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s2-075

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Recent Progress on the Elaboration of Sodium Manganese Phosphate Based Nanostructures as Cathodes for Energy Storage 磷酸锰钠基纳米结构储能阴极的研究进展

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s2-074

引用次数: 0

Numerical Analysis of the Building Energy Efficiency Using Two Different HVAC Systems: Variable Refrigerant Flow and Variable Air Volume Technologies 变制冷剂流量和变风量两种不同暖通空调系统的建筑节能数值分析

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s2-066

{"title":"Numerical Analysis of the Building Energy Efficiency Using Two Different HVAC Systems: Variable Refrigerant Flow and Variable Air Volume Technologies","authors":"","doi":"10.17756/nwj.2023-s2-066","DOIUrl":"https://doi.org/10.17756/nwj.2023-s2-066","url":null,"abstract":"Variable refrigerant flow (VRF) and variable air volume (VAV) systems are considered among the best heating, ventilation, and air conditioning systems (HVAC) thanks to their ability to provide cooling and heating in different thermal zones of the same building. As well as their ability to recover the heat rejected from spaces requiring cooling and reuse it to heat another space. Nevertheless, at the same time, these systems are considered one of the most energy-consuming systems in the building. So, it is crucial to well size the system according to the building’s cooling and heating needs and the indoor temperature fluctuations. This study aims to compare these two energy systems by conducting an energy model simulation of a real building under a semi-arid climate for cooling and heating periods. The developed building energy model (BEM) was validated and calibrated using measured and simulated indoor air temperature and energy consumption data. The study aims to evaluate the effect of these HVAC systems on energy consumption and the indoor thermal comfort of the building. The numerical model was based on the Energy Plus simulation engine. The approach used in this paper has allowed us to reach significant quantitative energy saving along with a high level of indoor thermal comfort by using the VRF system compared to the VAV system. The findings prove that the VRF system provides 46.18% of the annual total heating energy savings and 6.14% of the annual cooling and ventilation energy savings compared to the VAV system.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135297680","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: 0

Optimal Collector Aspect Ratio for Improving Thermal Efficiency of Louvered Finned Solar Air Heaters Using Nanoparticles 利用纳米颗粒提高百叶窗翅片太阳能空气加热器热效率的最佳集热器长宽比

NanoWorld Journal Pub Date : 2023-09-29 DOI: 10.17756/nwj.2023-s3-008

Subhash Chand, Mayank Srivastava, Priyanka Nimesh, Gopal Kaliyaperumal, Asheesh Sehgal, Praveen Kumar, Govindarasan Devarajan

{"title":"Optimal Collector Aspect Ratio for Improving Thermal Efficiency of Louvered Finned Solar Air Heaters Using Nanoparticles","authors":"Subhash Chand, Mayank Srivastava, Priyanka Nimesh, Gopal Kaliyaperumal, Asheesh Sehgal, Praveen Kumar, Govindarasan Devarajan","doi":"10.17756/nwj.2023-s3-008","DOIUrl":"https://doi.org/10.17756/nwj.2023-s3-008","url":null,"abstract":"The current study investigated the effect of collector aspect ratio on the thermal performance of a louvered finned solar air heater (LFSAH) using nanoparticles. Analyses are performed on various collector aspect ratios and mass flow rates (MFR) to determine their impact on heat transfer and overall system performance. The findings reveal that changing the collector aspect ratio has significant effects on the thermal efficiency and heat transfer properties of a solar air heater (SAH). It has been observed that increasing the aspect ratio increases heat transmission and improves the thermal efficiency of the system. When an aspect ratio of 4:1 was used, LFSAH and PSAH attained the highest thermal efficiency, with percentages of 81.63% and 68.13%, respectively. The study’s findings provide useful information for improving the design and operation of LFSAH while keeping the aspect ratio as a critical variable in consideration. In the context of solar air heaters, optimizing the aspect ratio offers substantial benefits. By enhancing energy efficiency, it reduces reliance on fossil fuels and effectively minimizes air pollution. Additionally, this optimization contributes to water conservation and mitigates the risk of groundwater and surface water pollution. Furthermore, promoting energy-efficient heating systems helps mitigate soil contamination risks. Hence, the study underscores the importance of considering the aspect ratio in the design of louvered finned solar air heaters, providing valuable insights for the development of sustainable heating systems that foster a cleaner environment.","PeriodicalId":36802,"journal":{"name":"NanoWorld Journal","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139334240","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: 0