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1ST VAN LANG INTERNATIONAL CONFERENCE ON HERITAGE AND TECHNOLOGY CONFERENCE PROCEEDING, 2021: VanLang-HeriTech, 2021最新文献

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Effects of the top extension of the domain in CFD simulation of solar chimneys 区域顶部扩展对太阳烟囱CFD模拟的影响
T. N. Huynh, Y. Nguyen
Solar chimneys have been widely used for natural ventilation of buildings. It absorbs solar radiation to create stack effect to induce air flow for ventilation. To model air flow and heat transfer inside solar chimneys, numerical models based on Computational Fluid Dynamics (CFD) have been broadly employed. The size of the computational domain is one of the factors influencing computed results from CFD models. In this study, we investigated effects of the extension of the domain above the outlet of the air channel as the gap and the height of the air channel changes. Two types of the computational domains were studied. The small domain has identical physical size with a cavity inside the solar chimney while the large domain contains both the cavity and the ambient air surrounding the chimney. The induced flow rate and temperature rise of the chimney were computed and compared between those domains. It is seen that to ensure the changes of both flow rate and temperature below 1.0%, the required extension, h, of the domain above the outlet of the air channel is a function of the gap – to – height ratio G/H, not only the gap. Specifically, for G/H in the range of 0.1 – 0.4 in this study, the required h/G rises from 10 to 30.
太阳能烟囱已广泛应用于建筑物的自然通风。它吸收太阳辐射,形成烟囱效应,诱导空气流动通风。为了模拟太阳烟囱内部的空气流动和传热,基于计算流体力学(CFD)的数值模型被广泛应用。计算域的大小是影响CFD模型计算结果的因素之一。在这项研究中,我们研究了随着空气通道的间隙和高度的变化,空气通道出口上方的区域扩展的影响。研究了两种类型的计算域。小区域具有相同的物理尺寸,在太阳能烟囱内部有一个空腔,而大区域包含空腔和烟囱周围的环境空气。计算并比较了两个区域烟囱的诱导流量和温升。可以看出,为了保证流量和温度的变化都低于1.0%,风道出口上方区域所需的延伸量h是间隙与高度比G/ h的函数,而不仅仅是间隙的函数。具体来说,本研究中G/H在0.1 - 0.4范围内,所需的H /G从10上升到30。
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引用次数: 0
Experimental research to determine the effect of main operating parameters of rice husk gasifier on power capacity and fuel saving of diesel engine using dual fuel 稻壳气化炉主要运行参数对双燃料柴油机功率容量和节油性能影响的实验研究
T. Trung, K. Hoang, D. Anh
Rice husk is abundant in the Mekong Delta of Vietnam, considering as renewable energy for power generation. The syngas production from the gasification of rice husk can also be supplied to the dual-fuel diesel engine, saving oil consumption. The operating conditions are key contributions to obtain the high syngas qualification and high ratio of the replaceable syngas fuel in the diesel-syngas engine. This paper presents the effect of air velocity (from 2.0 to 8.0 cm/s), bulk density (from 92.31 to 122.55 kg/m3), and moisture of rice husk (from 4.0 to 13.0 %) on the replaceable diesel oil ratio and power capacity of the dual-fuel diesel engine RV-125N, using the downdraft gasifier. The obtained results indicate that at the moisture of 4.3 % of rice husk, the bulk density of 101.86 kg/m3, and the air velocity of 6.0 cm/s, the power capacity can reach 1.41 kW and the replaceable diesel oil ratio was over 60 %. Considering the moisture of rice husk of 4.3 % (as-received), the diesel capacity can be improved and the replaceable diesel fuel was not significantly decreased.
越南湄公河三角洲盛产稻壳,稻壳可作为可再生能源发电。稻壳气化产生的合成气也可以供应给双燃料柴油机,节省了油耗。运行工况是柴油-合成气发动机获得高合成气合格率和高可替代合成气燃料比率的关键因素。本文研究了风速(2.0 ~ 8.0 cm/s)、容重(92.31 ~ 122.55 kg/m3)、稻壳水分(4.0 ~ 13.0%)对RV-125N双燃料柴油机下吸式气化炉可更换柴油比和功率容量的影响。结果表明,在稻壳含水量为4.3%、容重为101.86 kg/m3、风速为6.0 cm/s的条件下,发电容量可达1.41 kW,柴油替代率可达60%以上。考虑到稻壳含水率为4.3%(收货),可提高柴油容量,且柴油的可替换性没有显著降低。
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引用次数: 0
Digitalization of traditional performance art heritage in Quảng Ninh for conservation, management, and tourism development Quảng宁宁传统行为艺术遗产之数位化保护、管理及观光发展
Dinh Luong Khac, Hung Ngo Minh, Lam Nguyen Dinh, Son Quang Van
The Vietnamese traditional performing arts (TPA), particularly those in Quảng Ninh province, concentrate around traditional folk music and theater and traditional dance performances. These types of arts were created, practiced, and fostered by our forefathers through thousands of years of history, which are combined with the characteristics of geographical locations and regional culture in this province. There have been domestic and international scientific research efforts on the conservation and promotion of Vietnamese TPA from various approaches, and these efforts have achieved significant results. However, Quảng Ninh’s TPA in particular needs to have an expanded interdisciplinary approach; the use of digital technology is a solution that has been successfully applied and implemented by many countries.Through a case study in Quảng Ninh, the author has found that digitals such as 3D (digitalization for traditional costume, performing places, scan the musical instruments, dance movements); 360 (digitalization for process performing of music and folk dances); Slow motion (digitalization for musical melodies, process creating the musical instruments, process teaching a folk song or playing a musical instrument and other historical materials) what play a crucial role in preserving, administering, and promoting the local TPA heritage in contemporary cultural life.
越南传统表演艺术(TPA),特别是Quảng宁省的传统民间音乐、戏剧和传统舞蹈表演。这些类型的艺术是我们的祖先在几千年的历史中创造、实践和培育的,并与我省的地理位置和地域文化特点相结合。国内外对越南TPA的保护与推广开展了多种途径的科学研究,并取得了显著成果。然而,Quảng Ninh的TPA特别需要有一个扩大的跨学科方法;使用数字技术是许多国家已成功应用和实施的一种解决办法。通过对Quảng宁宁的个案研究,笔者发现数字化如3D(对传统服装、表演场所、乐器、舞蹈动作进行数字化扫描);360(音乐、民间舞蹈过程表演数字化);在当代文化生活中,对当地TPA遗产的保存、管理和推广起着至关重要作用的慢动作(音乐旋律、乐器创作过程、教授民谣或演奏乐器的过程以及其他历史材料的数字化)。
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引用次数: 0
Roof structure preservation at Saigon Notre-Dame Cathedral 西贡圣母院的屋顶结构保存
Hung Do Phu
The Saigon Notre-Dame Cathedral in Ho Chi Minh City is typical cultural historical relics and also an urban heritage of the French colonial period in Vietnam. Together with other coverage elements like the masonry wall and the stained glass window, the roof structure plays a primary role of protection building against the weather. The objective of this article is to report our survey works done in April 2016, in view of authenticity in preservation work. Methods used include site-survey on roof-tiling materials and roof- tile production named ‘Marseillaise Acier’ produced by Acier upon Marseilles typology, where two types of tiles found: (1) Maltese Cross, Arnaud Etienne et Cie, Marseille St. Henri, France; and (2) Bee, Guichard Carvin et Cie, Marseille St. Andre, France. As time went by, other two types of tiles were found to be used, named ‘Wang Tai’ and ‘Tuileries de L‘Indochine’. Due to the demand of roof-tiling replacement, resulted in changes to the roof structure load bearing, analysis options on weight and load bearing variables were considered and compared for possible solutions with new tiles impored from Monier-France tile producer due to ist heavier weight and large dimension. Research limitation and implications is limited to our real case at the cathedral, in which we proposed to re-collect old but reusable roof-tiles to a particular roof location for the sake of authenticity.
胡志明市的西贡圣母院是典型的文化历史遗迹,也是法国殖民时期在越南的城市遗产。与砖石墙和彩色玻璃窗等其他覆盖元素一起,屋顶结构起着保护建筑免受天气影响的主要作用。鉴于保存工作的真实性,本文的目的是报告我们在2016年4月所做的调查工作。使用的方法包括对屋顶瓦片材料和由Acier根据马赛类型生产的名为“Marseillaise Acier”的屋顶瓦片进行现场调查,其中发现了两种类型的瓦片:(1)Maltese Cross, Arnaud Etienne et Cie, Marseille st Henri,法国;(2) Bee, Guichard Carvin et Cie,马赛圣安德烈,法国。随着时间的推移,人们发现使用了另外两种类型的瓷砖,分别被命名为“王台”和“杜伊勒里”。由于屋顶瓦片更换的需求,导致屋顶结构承重的变化,考虑了重量和承重变量的分析选项,并比较了从莫尼尔-法国瓦片生产商进口的新瓦片的可能解决方案,因为它的重量更重,尺寸更大。研究的局限和影响仅限于我们在大教堂的实际案例,在这个案例中,我们建议将旧的但可重复使用的屋顶瓦片重新收集到一个特定的屋顶位置,以保持真实性。
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引用次数: 0
Green BIM for multi discipline design - A case study 多学科设计的绿色BIM -案例研究
H. T. Le
Recently, Building Information Modelling (BIM) has become an indispensable measure for green design in particular and green, sustainable construction in general. The paper illustrates a case study of using BIM for different disciplines from architectural envelope evaluation, structural detail demonstration to Mechanical – Electrical – Plumbing design at Van Lang University. The calculations provide the owner, building operators the insight view in energy consumption which relates to building form, orientation. The 3D BIM models are used for building physic analyses, cost estimation; the 4D model simulates the construction using up to date BIM software like FormIT, Revit, Ecotect, Navisworks Manage and CFD simulation.
近年来,建筑信息模型(BIM)已经成为绿色设计和绿色可持续建筑不可或缺的手段。本文阐述了一个在范朗大学的不同学科中使用BIM的案例研究,从建筑围护结构评估、结构细节演示到机电管道设计。计算为业主、建筑运营商提供了与建筑形式、朝向有关的能源消耗的洞察视图。3D BIM模型用于建筑物理分析、成本估算;4D模型使用最新的BIM软件(如FormIT, Revit, Ecotect, Navisworks Manage和CFD模拟)模拟施工。
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引用次数: 0
The role of the Mekong River commission in water resources security and food security issue in lower Mekong River today 湄公河委员会在湄公河下游水资源安全和粮食安全问题上的作用
Thu Anh Bui
The Mekong River basin, one of the basins with the highest levels of biodiversity in the world, plays a crucial role in livelihoods and food security in the countries along this river. Today, the downstream area, including Thailand, Laos, Cambodia and Vietnam, is facing major challenges in water resources security and food security. The two main causes leading to this threat are climate change and unsustainable water exploitation activities of some countries in the basin. Based on the research methods of the science of international relations, the article clarifies the role of the Mekong River Commission (MRC) in addressing food security and water resources security in the downstream area. From the research results, the author raises some urgent issues that the members of MRC must pay attention to and adjust to promote the role of the MRC in regional and international in the future.
湄公河流域是世界上生物多样性水平最高的流域之一,对沿岸国家的生计和粮食安全起着至关重要的作用。当前,泰国、老挝、柬埔寨、越南等下游地区在水资源安全和粮食安全方面面临重大挑战。造成这种威胁的两个主要原因是气候变化和一些流域国家不可持续的水资源开发活动。本文运用国际关系学的研究方法,明确了湄公河委员会(MRC)在解决下游地区粮食安全和水资源安全问题中的作用。从研究结果中,作者提出了今后促进MRC在区域和国际上的作用,MRC成员必须重视和调整的一些紧迫问题。
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引用次数: 0
Prediction of flow field and mass flow rate in a solar chimney at different heights using ANFIS technique 利用ANFIS技术预测不同高度太阳能烟囱内的流场和质量流量
T. Doan, Minh-Thu T. Huynh, Y. Nguyen
Natural ventilation for buildings using solar chimney is increasingly attracting the attention of many researchers. Many techniques have been introduced to research on solar chimneys such as experimental, analytical, computational methods. Recently, with the development of computer technology, computational method, particularly, Computational Fluid Dynamics (CFD) becomes more common and widely applied in solar chimney, but this method still exists limitation. One of the main limitations is using much computational source. In this study, CFD was combined with Adaptive Neuro-Fuzzy Inference System (ANFIS) to prevail against this limitation when predicting flow field and mass flow rate in a chimney. In particular, the fluid flow and heat transfer in chimney were simulated with CFD to create dataset. Two ANFIS models were built, trained, and validated using dataset from CFD. After the training, ANFIS models can predict flow temperature, velocity and induced mass flow rate, respectively, with R-squared (R2) of 0.97, 0.997 and 0.9996 for training set, while 0.9715, 0.994 and 0.9996 for testing set; similarly, root mean squared error (RMSE) are 0.032, 1.703, 3.45x10−5 for training set, and 0.042, 1.713 and 2.95x10−5 for testing set. It is expected that the combination of CFD and ANFIS can estimate more different scenarios but using less computational time.
利用太阳能烟囱进行建筑自然通风越来越受到研究者的关注。太阳能烟囱的研究采用了实验、分析、计算等多种方法。近年来,随着计算机技术的发展,计算方法,特别是计算流体力学(CFD)在太阳能烟囱中的应用越来越普遍和广泛,但这种方法仍然存在局限性。其中一个主要的限制是使用大量的计算源。在本研究中,CFD与自适应神经模糊推理系统(ANFIS)相结合,在预测烟囱内流场和质量流量时克服了这一局限性。利用CFD对烟囱内的流体流动和换热进行了数值模拟,建立了数据集。利用CFD数据集建立、训练和验证了两个ANFIS模型。经过训练,ANFIS模型可以分别预测流体温度、流速和诱导质量流量,训练集的r平方(R2)分别为0.97、0.997和0.9996,测试集的r平方(R2)分别为0.9715、0.994和0.9996;同样,训练集的均方根误差(RMSE)分别为0.032、1.703、3.45x10−5,测试集的均方根误差分别为0.042、1.713、2.95x10−5。预计CFD和ANFIS的结合可以在使用更少的计算时间的同时估计更多不同的场景。
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引用次数: 0
The decorative art of Indochinese architecture in Saigon - Ho Chi Minh City
Hoang Le Vu, Phuc Hoang Minh, Hung Ngo Minh
Over 80 years of colonization, the cultural and historical mark of the French in Saigon is reflected in many ways, especially the architectural system is seen as historical witnesses to record the process of development into city. From the "pearl of Indochina" to "Western model city", Saigon brings its own unique, harmonious and graceful features through architectural, technical and decorative styles on each architectural project with Indochinese style. Those beautiful features gradually affirmed the value of French architectural art, cultural and historical value of the southern land. By the method of surveying, fieldwork, analyzing from an aesthetic perspective on the basis of an interdisciplinary approach, studying decorative arts on some Indochinese architectural works in Saigon - Ho Chi Minh City colonial section from 1887-1945. This is the time of starting and ending the influence of the French, in terms of politics, social culture, education and especially colonial architecture through urban planning and architectural decoration. The architectural style of Indochina has become a trend in modern architecture, marking the influence of French culture in Saigon on architectural heritage, and simultaneously demonstrating the aesthetic values from various art forms that they create.
经过80多年的殖民统治,法国人在西贡的文化和历史印记体现在许多方面,特别是建筑系统被视为历史见证,记录了城市发展的过程。这些美丽的特色逐渐肯定了法国建筑艺术的价值,南方土地的文化和历史价值。这是法国在政治、社会文化、教育方面的影响开始和结束的时期,特别是通过城市规划和建筑装饰的殖民建筑。
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引用次数: 0
Implementation of reliability buildings based on health principles 实施基于健康原则的可靠性建筑
A. Kusumaningrum, L. T. Hieu, S. Putra
Heritage Buildings Cultural heritage, which is generally more than 50 years old, is a material cultural heritage. This cultural heritage building has essential value for history, science, education, religion, and culture, so that its existence needs to be preserved. Preservation of cultural heritage buildings, of course, must pay attention to health requirements because health is the right of every person guaranteed by law. Requirements for cultural heritage buildings include ventilation systems, lighting, and sanitation, and the use of materials thereof. This paper aims to describe and analyze the implementation of cultural heritage buildings’ reliability based on health principles, using research methods with an empirical juridical approach with qualitative analysis. The research location is in the Kota Lama area in the city of Semarang. Data sources consist of primary and secondary data. Based on the findings and analysis, there are many buildings in the Kota Lama area in Semarang that have been revitalized for their preservation. However, because many buildings in Kota Lama are still owned individually, for that with principles of health, it is necessary to conduct periodic reviews, care for and maintain as an effort to preserve cultural heritage buildings as regulated in Articles 8 paragraph 3 of PUPR Ministerial Regulation No: 01/PRT/M/2015 concerning the maintained Cultural Heritage Building. This is necessary so that the preservation of cultural heritage buildings can be achieved and beneficial to the community.
文化遗产是一种物质文化遗产,一般具有50年以上的历史。这座文化遗产建筑具有重要的历史、科学、教育、宗教和文化价值,因此需要保护它的存在。保护文化遗产建筑当然要注意卫生要求,因为卫生是法律保障的每个人的权利。对文物建筑的要求包括通风系统、照明、卫生及其材料的使用。本文旨在运用实证法学和定性分析相结合的研究方法,对基于健康原则的文物建筑可靠性实施进行描述和分析。研究地点在三宝垄市的哥打喇嘛地区。数据源包括主要数据和次要数据。根据调查结果和分析,三宝垄的哥打喇嘛地区有许多建筑因其保存而得到了振兴。然而,由于哥打喇嘛的许多建筑仍然是单独拥有的,出于健康的原则,有必要进行定期审查,照顾和维护,作为保护文化遗产建筑的努力,正如PUPR部长条例第01/PRT/M/2015第8条第3段所规定的那样。这是必要的,这样才能实现对文化遗产建筑的保护,并有利于社会。
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引用次数: 0
Preserve and promote the beauty of old saigon culture in development 在发展中保护和弘扬老西贡文化之美
Hang Le Thu, L. Ba
Today, Ho Chi Minh City’s development pace has brought challenges in preserving the heritage and local culture. Many of them are slowly disappeared or damaged. Therefore, it is necessary to find solutions to preserve and promote these values in everyday life, to build the modern city without losing its cultural soul in the past, creating a modern community without losing its character. That requires many efforts because heritage and culture always face many devastating impacts such as climate change, economic development needs, commercial choices, financial and unconscious human activities.With the approach and research method based on technological solutions, this article aims to outline a breakthrough effort such as: finding and proposing to create an Old Saigon cultural space that exists in the present; building models by using virtual-reality technology (and applying AI) towards cultural experiences in digital space as well as easily connect to the landscape system, the cultural beauty which still present in life. From there, increasing the interest and attachment to traditional culture in the community, creating a sustainable basis for preserving and promoting culture in the digital era, so that the past is valuable, not to become a pressure for the present. Then, the beauty of the old Saigon culture will naturally be respected during the development of Ho Chi Minh City.
如今,胡志明市的发展速度给保护遗产和当地文化带来了挑战。其中许多正在慢慢消失或损坏。因此,有必要找到在日常生活中保存和促进这些价值观的解决方案,在不失去过去文化灵魂的情况下建设现代城市,在不失去其个性的情况下创建现代社区。这需要付出很多努力,因为遗产和文化总是面临许多毁灭性的影响,如气候变化、经济发展需求、商业选择、金融和无意识的人类活动。本文采用基于技术解决方案的方法和研究方法,旨在概述一个突破性的努力,如:发现并提出创造一个存在于当下的老西贡文化空间;利用虚拟现实技术(并应用人工智能)构建模型,在数字空间中进行文化体验,并轻松连接景观系统,在生活中仍然存在的文化美。由此,增加社会对传统文化的兴趣和依恋,为在数码时代保存和推广文化创造可持续的基础,使过去变得宝贵,而不是成为现在的压力。那么,在胡志明市的发展过程中,老西贡文化之美自然会得到尊重。
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引用次数: 0
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1ST VAN LANG INTERNATIONAL CONFERENCE ON HERITAGE AND TECHNOLOGY CONFERENCE PROCEEDING, 2021: VanLang-HeriTech, 2021
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