Abstract
Natural gas,the most environmentally friendly fossil fuel, can be stored in a vessel based on adsorption technology, designed for energy efficient storage of natural gas at relatively medium pressures (3‒4 MPa).The application of adsorption technology will reduce the energy consumption for gas compressing or gas liquefying compared to compressed and liquefied natural gas storage methods,also, it will lead to cost savings in compressing and cooling equipment. While charging/discharging of adsorbed natural gas (ANG) vessel, the latent heat of adsorption counteracts to adsorption/desorption process, as the result, thermal effect causes a reduction of vessel capacity. Therefore,the influence of thermal control on adsorption and desorption processes in adsorbed natural gas vessel was studied experimentally and numerically in this paper. The study focusing on the three dimensional heat exchange is important in order to understand the heat transfer phenomena and analyze influence of thermal control comprehensively. The temperature and adsorption uptake profiles in the vessel were demonstrated in the numerical simulation. Comparison of experimental and simulation results showed that deviation between experimental and numerical results was 0.1%.
Highlights
Cost-effectiveness and environmental safety of the use of natural gas as a fuel for motor vehicles are obvious, as it is accompanied by a reduction in carbon monoxide (CO) emissions by 40%, carbon dioxide (CO2) ‒ by 25%, nitrogen oxide (NOx) ‒ by 10% and smog-forming volatile organic compounds by 92% [1]
The mathematical model heat and mass transfer is developed and described in detail, which take into account the effect of adsorption on the thermodynamic state of the whole system
Heat transfer in adsorbed natural gas (ANG) vessel was clearly demonstrated in the 3D numerical simulation
Summary
Cost-effectiveness and environmental safety of the use of natural gas as a fuel for motor vehicles are obvious, as it is accompanied by a reduction in carbon monoxide (CO) emissions by 40%, carbon dioxide (CO2) ‒ by 25%, nitrogen oxide (NOx) ‒ by 10% and smog-forming volatile organic compounds by 92% [1]. Natural gas could be produced in abundant amount from associated petroleum gas or from coal seams, and it is mainly composed of methane (95%). Under standard conditions methane is very inappropriate for motor vehicles as a fuel mainly due to low volumetric energy density which is 0.038 MJ/l and it is only 0.12% of gasoline. The usage of conventional gas storing methods as compressed natural gas (CNG) storage is constrained by expensive compressing equipment and by hazards associated with high pressure (25 MPa) [1,2]. The application of liquefied natural gas (LNG) method-limited by costly equipment for liquefaction and by the possibility of hazards related to low temperature (-163 °C). LNG method requires trained personnel who can assess and control hazard in refueling operations
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
