Modelling Air Compressibility in OWC Devices with Deformable Air Chambers

Compressibility of air in fibrous materials

Smog Study Using Twin Chambers Filled with Ambient Air

Seoul is one of the most severe smoggy cities in the world. During summer afternoons, the fine particles formed by photochemical reactions could contribute visibility reduction. The formation and growth of secondary ambient aerosols might be affected by primary air pollutants and by meteorological factors. In this work, the photochemical reaction of Seoul ambient air was investigated in indoor ...

A review of portable air cleaner devices: purification processes, performance standards, effectiveness in controlling indoor air pollutants

Background and objective: Indoor air pollutants are among the five most important environmental health risks. In recent years, concerns regarding indoor air in buildings have increased. In this review, studies conducted on portable air cleaners have been investigated. Materials and methods: After determining the keywords and conducting comprehensive searches in the internet databases, taking i...

Development of a Practical Model for Optimizing Surge Tanks and Air Chambers in Water Transmission Systems

Surge tanks and air chambers are the most useful solution to deal with water hammer in water transmission systems (WTS). The optimal design of these protective devices can be effective in reducing the costs of constructing and operating a water transmission system. In this article, some software with the capability of simulating and optimizing these protective equipment is presented. To simulat...

BEM-FDM modeling of water free surface interaction with trapped air in OWC chamber for calculating generated power

Free surface modeling plays an important role in some ocean structures design, especially in Oscillating Water Column (OWC) devices. Boundary element method (BEM) is a suitable method for free surface modeling due to its simplicity, quick solving, and low data storage requirement. In this paper, BEM was used for free surface modeling in OWC chamber and out of it. Linear kinematic and dynamic bo...