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Analysis of power cycle based on cold energy of LNG and low-grade heat source

2013-06-03It is important for the sustainable development of economy to exploit new energy. The utilization of lowgradeheat source is confined for its lower utilizing efficiency. Liquefied natural gas (LNG) at 110 K hasplenty of physical cold exergy besides its high quality chemical energy. A power cycle w..

Analysis of temperature and pressure changes in LNG cryogenic tanks

2013-06-03 Liquefied natural gas (LNG) is being developed as a transportation fuel for heavy vehicles such as trucks and transit buses, tolessen the dependency on oil and to reduce greenhouse gas emissions. The LNG stations are properly designed to prevent the venting of natural gas (NG) from LNG tanks, ..

An exergy analysis of small-scale LNG processes

2013-06-03Four processes for small-scale liquefied natural gas (LNG) production are eva luated. These include a single-stage mixedrefrigerant (SMR), a two-stage expander nitrogen refrigerant and two open-loop expander processes. Steady-statesimulations were undertaken to ensure that each process was compar..

An uncertainty analysis of the PVT gauging method

2013-06-03The PVT (pressure, volume, temperature) method of liquid quantity gauging in low-gravity is based on gas law calculationsassuming conservation of pressurant gas within the propellant tank and the pressurant supply bottle. There is interest in applyingthis method to cryogenic propellant tanks sinc..

Analysis ofpurge gas temperature in cyclic TSA process

2013-06-03This study analyzes the e2ect ofan operating parameter on the dynamic behavior by performing dynamic simulations ofcyclicthermal swing adsorption (TSA) system, in 3xed beds packed with activated carbon as an adsorbent. This TSA process puri3es and regenerates the ternary mixtures consisted ofbenz..