Efficacy of an air curtain system for local pit environmental control for relic preservation in archaeology museums

Xin, Libiao; Gu, Zhaolin; Yu, Chuck Wah; Ma, Tao; Kase, Kiwamu

doi:10.1177/1420326x15585327

Cited by 30 publications

(13 citation statements)

References 11 publications

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“…This has led to obtaining a correlation coefficient of 0.9886 ( Figure 12), which is quite close to the previous relation. These results are considered in Equation (22). It was observed that some variables were very close to the unit or to 0.5.…”

Section: Influence Of E +1 − Hjk L On the Average Speed At The Doomentioning

confidence: 99%

Experimental Study on the Aerodynamic Sealing of Air Curtains

Viegas

Oliveira

Aelenei

2018

Fluids

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Abstract:Controlling the air quality is of the utmost importance in today's buildings. Vertical air curtains are often used to separate two different climatic zones with a view to reduce heat transfer. In fact, this research work proposes an air curtain aimed to ensure a proper separation between two zones, a clean one and a contaminated one. The methodology of this research includes: (i) small-scale tests on water models to ensure that the contamination does not pass through the air curtain, and (ii) an analytical development integrating the main physical characteristics of plane jets. In the solution developed, the airflow is extracted from the contaminated compartment to reduce the curtain airflow rejected to the exterior of the compartment. In this research work, it was possible to determine the minimum exhaust flow necessary to ensure the aerodynamic sealing of the air curtain. This article addresses the methodology used to perform the small-scale water tests and the corresponding results.

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Section: Influence Of E +1 − Hjk L On the Average Speed At The Doomentioning

confidence: 99%

Experimental Study on the Aerodynamic Sealing of Air Curtains

Viegas

Oliveira

Aelenei

2018

Fluids

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“…This study noticed about 15% savings in the electricity bill for the Amsterdam Museum. Luo et al [18][19][20][21] proposed a variety of environmental control systems for preservation of historical relic sites (e.g., air curtain system, local displacement ventilation system, capillary radiation system) in China. These systems can effectively support the local environmental control for the historical relic sites and substantially reduce the energy consumption.…”

Section: Introductionmentioning

confidence: 99%

Sustainability of Evaporative Cooling System for Environment Control for Preservation of Unearthed Historical Sites within Archaeological Museums in China

et al. 2020

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Archaeological museums are usually constructed at the location where historical relic sites are unearthed and are often characterized by large-space building layouts and high energy consumption for the environmental control. However, the traditional strategies for environmental control are limited in protecting the unearthed relics from desiccation cracking and salt concentration. In this study, an environmental control strategy of evaporative cooling system is proposed as a solution to develop a sustainable preservation environment to maintain the condition of the ancient relics at a state of moist saturation. Afterwards, a verification of sustainability and climate suitability analysis of the proposed system were conducted. The results indicate that (1) the evaporative cooling system can fulfil the high humidity preservation environment requirements for the unearthed historical relic sites with a low energy consumption; and (2) the potential use of the evaporative cooling systems is significant in Xi’an and Chengdu (i.e., being 62% and 75%, respectively), and not in Lanzhou and Urumqi. As a conclusion, the proposed strategy provides a sustainable protocol for the preservation of unearthed historical relic sites in archaeological museum.

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“…22 Air curtains have also been used in practical applications such as air-conditioned rooms, food storage, refrigeration and aircraft and relic preservation. [23][24][25][26] Research on air curtains started in the 1960s, and mathematical models for heat transfer across air curtains were proposed. [27][28][29] Based on research for identifying an optimal jet momentum of an air curtain, [30][31][32] many studies consistently reported its applications, energy efficiency and numerical model development.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of thermal comfort and transport of expiratory contaminants in a ventilated office with an air curtain system

Park

Chang

2018

Indoor and Built Environment

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Air distribution systems generally focus on diluting contaminants and distributing conditioned air. However, this strategy has a potential for spreading particulate matter or bioaerosols. Thus, it is considered to be useful to create a non-uniform indoor environment to prevent such dispersion of particulate matter or bioaerosols, and an air curtain could serve for this purpose. This study investigates the effects of an air curtain system in a ventilated office to prevent the dispersion of expiratory droplets that are generated locally, while also considering thermal comfort. Droplets dispersion was modelled with computational fluid dynamics (CFD) with the Lagrangian method. In the CFD simulations, an air curtain system was installed in the middle of an office with varied factors of design, orientation and jet velocity of the air curtain system. Numerical results showed that unless there was an independent inlet and outlet for each region, the air curtain system alone could not create a non-uniform thermal environment; however, it was effective in removing and preventing dispersion of the expiratory droplets. The droplet removal performance of an air curtain system was not proportional to its jet velocity, but a velocity of 3 m/s was found to be feasible for this office. The air curtain system showed better performance than an air cleaner used to exhaust and filter the expiratory droplets.

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Efficacy of an air curtain system for local pit environmental control for relic preservation in archaeology museums

Cited by 30 publications

References 11 publications

Experimental Study on the Aerodynamic Sealing of Air Curtains

Experimental Study on the Aerodynamic Sealing of Air Curtains

Sustainability of Evaporative Cooling System for Environment Control for Preservation of Unearthed Historical Sites within Archaeological Museums in China

Numerical investigation of thermal comfort and transport of expiratory contaminants in a ventilated office with an air curtain system

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