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Cold Power Plant Based on the Cryogenic Refueling Tank
Engineering Education # 06, June 2014
DOI: 10.7463/0614.0716978
The paper evaluates the possibility to use a tank with cryogenic refueling as a part of the autonomous complex employing the liquefied natural gas. A cryogenic refueling tank-based installation to utilize a low-grade heat has been designed. During its use extra electric power is generated. To assess a performance capability, the proposed installation calculations have been made for different end pressures in cryogenic refueling tank. In all embodiments, the mass of cryogenic refilled is 866 kg. Depending on the pressure an amount of extra electric power is produced owing to utilizing a low temperature potential of LNG. New values, such as the specific amount of extra energy are introduced. These values allow objective assessment of the potential for extra energy when using the cryogenic products with their subsequent regasification in cryogenic refueling tank taking into consideration the operational constraints and the working fluid flow. Cold energy power plant has been also designed to refuel vehicles with the natural gas. The total amount of generated electric power will be 3725.22 kW • h for 225 min. The action time of cold energy power plant, including the time of methane gasification in cryogenic refueling tank, time of refueling vehicles, and time of electricity generation will be 24 hours. The economic assessment of cold energy power plant has shown that the payback period is 3.4 years.
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