in this study cross section geometry and material of gasket in proton exchange membrane (pem) fuel cells have been investigated to achieve optimized fuel cell in terms of energy efficiency. the role of gaskets in fuel cells is sealing of gas flow channels and preventing from combination of them. in a pem stack, gasket with approved geometry that suffers more stress has better sealing. for this ...

In this study cross section geometry and material of gasket in proton exchange membrane (PEM) fuel cells have been investigated to achieve optimized fuel cell in terms of energy efficiency. The role of gaskets in fuel cells is sealing of gas flow channels and preventing from combination of them. In a PEM stack, gasket with approved geometry that suffers more stress has better sealing. For this ...

Gaskets are components that play a very important role in piping connections to prevent leakage. Several factors affect the performance of gasket, one which is contact surface flange. The quality surfaces connection also influences leakage rate each connection, therefore gasket sealing assessed by occurs. As result, roughness flange has an effect on sealing. This study examines capability three...

Pipe joints have been widely utilized in industrial plants, where dynamic load of vibration is considerably harmful for sealing performance. However, there is a lock of design codes and experimental procedures developed for vibration testing of pipe joints. This paper proposes an experimental setup for testing of pipe joints, which use metal gaskets, in vibratory conditions. Also, a flexible pi...

Air pollution studies for hazardous gases in Taiwan generally consider the impact on the human body, and always put the emphasis on large immobile and mobile pollution sources (like chimneys and vehicles), but they have ignore the leakage between pipelines in process industries. When hazardous materials leak imperceptibly, they increase the pathogenic risk to the workers at the workplace. Since...

Modern sealing components are used in a wide range of industrial processes. The recent global attention for reducing emission environmentally harmful substances motivates gasket manufacturers to quantify the performance gaskets. We investigate use fiber Bragg grating sensors measuring seating stress on spiral wound gasket. fiber-optic integrated gasket, following particular instrumentation stra...

Plate heat exchangers (PHEs) were introduced in the 1930s and were almost exclusively used as liquid/liquid heat exchangers in the food industries because of their ease of cleaning. Over the years, the development of the PHE has generally continued towards larger capacity, as well as higher working temperature and pressure. Recently, a gasket sealing was replaced by a brazed material, and each ...

Hydrogen gas has been widely recognized as an environmentally clean and renewable energy fuel, and it provides a way to reduce greenhouse gas and air pollution emission. A great deal of effort has been made to develop new techniques in the field of hydrogen energy, including hydrogen production, storage, and infrastructure. Recently a metallic gasket, which is made of type 316L stainless steel,...