Essays about: "Accelerated aging"

Showing result 16 - 20 of 20 essays containing the words Accelerated aging.

1. 16. Accelerated degradation of bipolar plates in the PEMFC

   University essay from KTH/Skolan för kemivetenskap (CHE)

   Author : Marcus Eriksson; [2016]
   Keywords : ;

   Abstract : The aging of bipolar plates in the polymer electrolyte membrane fuel cell was evaluated using different accelerated degradation tests. From previous studies, it is well known that the startups and shutdowns of a polymer electrolyte membrane fuel cell is the primary cause of fuel cell component degradation. READ MORE

3. 17. DEVELOPMENT OF A MODEL OF THE DEGRADATION OF THE MECHANICAL PROPERTIES OF POLYOXYMETHYLENE (POM) IN THE PRESENCE OF BIODIESEL

   University essay from Högskolan i Skövde/Institutionen för ingenjörsvetenskap

   Author : Adriano Linero Jiménez; [2014]
   Keywords : Aging; Polyoxymethylene; Diffusion; Biodiesel;

   Abstract : This project analyses the impact in the mechanical properties of Polyoxymethylene (POM) of three different blends of biodiesels: B0 with 0% of Rapeseed Methyl-ester (RME), B20 with 20% of RME and B100 with 100% of RME. Polyoxymethylene specimens have been subjected to an accelerated aging during 1600 hours at 85ºC. READ MORE

4. 18. Control strategy and lifetime optimization of Electrochemical Double-Layer Capacitors

   University essay from Lunds universitet/Institutionen för reglerteknik

   Author : Samir Alagic; Viktor Nordgren; [2014]
   Keywords : Supercapacitor; Ultracapacitor; Electrochemical Double-Layer Capacitor; Energy Storage; Power Source; MATLAB; Simulink; Embedded Systems; Aging; Lifetime Estimation; Voltage Control; Control System.; Technology and Engineering;

   Abstract : Today, the most commonly used energy storage device in embedded systems is batteries. But unfortunately, batteries are associated with short lifetime. By introducing Electrochemical Double-Layer Capacitors (EDLCs) as an alternative power source, the lifetime of the backup energy source can be significantly increased. READ MORE

5. 19. Accelerated aging of thick glass second surface silvered reflectors under sandstorm conditions

   University essay from Maskinteknik

   Author : Simon Caron; [2011]
   Keywords : Accelerated aging; Sandstorm simulation; Solar Energy;

   Abstract : Concentrated solar power systems are expected to be sited in desert locations where the direct normal irradiation is above 1800 kWh/m2.year. These systems include large solar collector assemblies, which account for a significant share of the investment cost. READ MORE

6. 20. Accelerated aging of aluminum alloys

   University essay from Karlstads universitet/Fakulteten för teknik- och naturvetenskap; Karlstads universitet/Institutionen för ingenjörsvetenskap, fysik och matematik

   Author : Christoffer Fransson; [2009]
   Keywords : ;

   Abstract : In order to determine storage life for aluminum alloys it is essential to have a good knowledge on the accelerated aging behavior and the mechanical properties that are affected. The selected aluminum alloys are AA2017, AA6082, AA7075 and the study has been focused on their impact toughness and hardness relation to aging beyond peak conditions. READ MORE