Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering最新文献

Chemical inhibitors as potential allied for CO2 replacement in gas hydrates reservoirs: sodium chloride case study 化学抑制剂作为天然气水合物储层中二氧化碳替代的潜在盟友:氯化钠案例研究

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/iccpe20.111

A. Gambelli, B. Castellani, M. Filipponi, A. Nicolini, F. Rossi

{"title":"Chemical inhibitors as potential allied for CO2 replacement in gas hydrates reservoirs: sodium chloride case study","authors":"A. Gambelli, B. Castellani, M. Filipponi, A. Nicolini, F. Rossi","doi":"10.11159/iccpe20.111","DOIUrl":"https://doi.org/10.11159/iccpe20.111","url":null,"abstract":"In previous experimental works we proved how the presence of sodium chloride may influence the replacement of methane contained into hydrate with carbon dioxide. Even if its chemical inhibitor effect is well known and documented in literature, the possibility of having different behaviours in function of the gaseous species involved in hydrate formation has not been explored. The first step of our research proved how NaCl inhibitor effect is more pronounced in methane hydrate formation rather than carbon dioxide one. That leads to a higher difference between temperature-pressure conditions describing the two species equilibrium curves and, thus, to greater possibilities of intervening in the replacement process in order to perform it and increasing both the amount of methane recovered and the quantity of carbon dioxide permanently stored. Two replacement tests were carried out in presence of 40 g/l of salt dissolved in water; then results were compared with two other tests previously realized with the same experimental apparatus but using pure demineralised water. The inhibitor effect of sodium chloride is well visible in the significantly lower quantity of methane hydrate formed in the first phase of tests. The same effect was observed during the carbon dioxide formation step, but its intensity was lower. In conclusion the use of NaCl led to a higher percentage of methane recovered and carbon dioxide stored, even if both quantities are lower than the respective value reached in tests carried out using demineralised water.","PeriodicalId":20694,"journal":{"name":"Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84279894","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: 5

Analytic Approaches for the Transient Temperature Distribution in a Single Cable for Smart Fuses and Ampacity Derating Calculation 智能熔断器单电缆瞬态温度分布的解析方法及降额计算

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/htff20.138

Anika Henke, S. Frei

引用次数: 0

Surface Tension Model for Free-Surface Problems in SPH SPH自由表面问题的表面张力模型

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/htff20.166

P. Jančík, T. Hyhlík

引用次数: 0

Thermal Analysis and Climate Control of Experimental two-level Hydroponic Growth Cell 实验两级水培生长细胞的热分析与气候控制

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/htff20.136

H. Vitoshkin, V. Haslavsky

{"title":"Thermal Analysis and Climate Control of Experimental two-level Hydroponic Growth Cell","authors":"H. Vitoshkin, V. Haslavsky","doi":"10.11159/htff20.136","DOIUrl":"https://doi.org/10.11159/htff20.136","url":null,"abstract":"The research focuses on providing optimal conditions for growth, energy efficiency, and sustainability, controlled and autonomous environment. A two-level hydroponic growth cell is proposed as an experimental facility to design of in-door multilayer plant production systems. The goal of the system is to serve as a practical and useful alternative to traditional field agriculture. The growth cell has of 1 m each level area and composites two rows of hydroponic growth elements. The cell is designed to carry out multiple functions essential to sustain plant growth that includes: water circulation, nutrients delivery, environment sensing, ventilation, and artificial selective lighting. The series of repeated growth cycles have been successfully performed and compared against a conventional greenhouse facility using lettuce as a model crop. The factors such as inside temperature and humidity, leaf temperature, illumination under three different lighting types: white light, red-blue light, sunlight were monitored and maintained by a developed control system. Light distribution (photosynthetic active radiation) and yield (leaf size and fresh weight) were assessed. It is shown that sunlight is the more profitable type of lighting for lettuce crops even under warm outside environmental conditions. These results illustrate that the use of transparent covering materials offer great potential for energy save cultivation and should be considered for a plant-factory design.","PeriodicalId":20694,"journal":{"name":"Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91482914","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

Exact Analytical Solution for Two-Dimensional Heat Transfer Equation through a Packed Bed Reactor 填料床反应器二维传热方程的精确解析解

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/htff20.167

M. Abdulrahman

引用次数: 3

Study of the geomechanical behaviour of different saline typologies in the Catalan basin 加泰罗尼亚盆地不同盐碱类型地质力学行为研究

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/mmme20.124

Nor Sidki, M. Bascompta, L. Sanmiquel

引用次数: 0

Developing an Integrated Cattle Farm on Ex-coal Mining Area 发展原矿区综合养牛场

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/mmme20.112

T. Yunanto, F. Amanah, Doddy Herika

{"title":"Developing an Integrated Cattle Farm on Ex-coal Mining Area","authors":"T. Yunanto, F. Amanah, Doddy Herika","doi":"10.11159/mmme20.112","DOIUrl":"https://doi.org/10.11159/mmme20.112","url":null,"abstract":"Mining companies are required to carry out reclamation process. Reclamation on ex-coal mining area has an opportunity to be functioned as Integrated Cattle Farm (ICF) as it is stated in Good Mining Practice Implementation Guidelines in Indonesia. The ICF aims to elaborate surrounding community development projects and empower domestic cattle beef. In addition, beef import is still conducted to meet domestic beef demand. However, some strategies have been arranged including extended livestock area project. As a preliminary study, this project aims to review the possibility of cattle farm development on ex-mining area from the weight increment and birth rate of cattle. The data was taken from PT Berau Coal, East Kalimantan Province, Indonesia and analysed using descriptive statistics. The results showed that the birth rates are: Brahman cross cattle (65%); Bali cattle (42%); and Donggala cattle (94%). Based on the farming system, the highest mean of Brahman cross cattle weight gain on the intensive farming (zero grazing) was 0.43 kg/day and 0.22 kg/day on the semi-intensive farming (grazing). To prepare ICF as community livelihood in the mine closure, some strategies need to be applied due to weight gain improvement. For commercial purposes of beef cattle, male cattle are better selected than female cattle. This project however improves capability and independency of the community from the training program. Moreover, ICF can be endorsed as sustainability of natural resources management from coal mine closure.","PeriodicalId":20694,"journal":{"name":"Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89645861","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

Optimisation of gold recovery from small scale custom mills 从小型定制工厂的黄金回收优化

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/mmme20.134

W. Nheta, M. Nkwinika, M. Mailula

引用次数: 1

A Serious Game for Evaluating the Competencies of Environmental Consultants 一个评估环境顾问能力的严肃游戏

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/icmie20.124

Mariem Bouri, L. Chraibi, N. Sefiani

引用次数: 1

Exploring the Properties of User-defined Phase Change Materials for Thermal Energy Storage 探索自定义相变材料的储热性能

Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering Pub Date : 2020-08-01 DOI: 10.11159/htff20.143

L. Sevilla, J. Radulovic

{"title":"Exploring the Properties of User-defined Phase Change Materials for Thermal Energy Storage","authors":"L. Sevilla, J. Radulovic","doi":"10.11159/htff20.143","DOIUrl":"https://doi.org/10.11159/htff20.143","url":null,"abstract":"- In this paper, a 2D thermal energy storage (TES) is modelled and solved numerically in the software COMSOL Multiphysics. The aim of this study is to examine the suitability of relevant thermal properties for the selected system design for charging only. The system consists of a cylindrical tank with height 0.5m and diameter 0.5m, acting as a packed bed full of encapsulated phase changing materials (PCM). The heat transfer fluid is water, entering the system at 90°C at a velocity of 0.01m/s. The investigation of the relevant properties focuses on the effect of melting temperature, latent heat of fusion, density, thermal conductivity and specific heat capacity. The final temperatures at different for spheres at different positions across the tank length are recorded and the heat absorbed for said spheres is calculated. Results indicate that the liquid properties of the PCM are more dominant over the temperature reached by system than the solid ones. Furthermore, higher final temperatures have been noted for high thermal conductivity of the liquid. In contrast, high specific heat capacity of the liquid yields significantly lower final temperatures.","PeriodicalId":20694,"journal":{"name":"Proceedings of the 6th World Congress on Mechanical, Chemical, and Material Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77335480","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