[en] We calculate the oscillation frequencies of trapped Fermi condensate with particular emphasis on the equation of state of the interacting Fermi system. We confirm Stringari's finding that the frequencies are independent of the interaction in the unitary limit, and we extend the theory away from that limit, where the interaction does affect the frequencies of the compressional modes only

No abstract available

[en] There are two LPG station (SPPBE) which are the depot of filling, storage and distribution of Liquid Petroleum Gas (LPG) namely PT. BM and PT. ISR which the distance each are 2,995 and 4,141 km from Experimental Power Reactor (RDE) site with capacity 15 and 30 tons. LPG station is a stationary source, which is one aspect of the external human induced events that need to be analyzed in the preparation of site evaluation reports to obtain site permits. Hazard potential that may occur from the depot LPG are fire, explosion and dispersion of hazardous and toxic gas. The release of LPG due to valve leakage which is then dispersed at a certain dose has potentially harmful to health, even death to the population around the RDE site. The purpose of the study was to know the effect of seasons (rainy and dry) to the potential hazard of LPG dispersion from LPG truck tank valve to the around RDE site. The method of study are collection the atmospheric data such as wind direction and speed, temperature and humidity, collection the station LPG characteristic, such as mass of gas, diameter and length of tank, and valve diameter, etc. The atmospheric data was obtained from Pondok Betung Climatology Station, in dry, transition, and rainy seasons, furthermore data was analyzed using ALOHA software version 5.4.5. The results show dispersion from LPG release due to valve leakage from PT. BM and PT. ISR around the RDE site, in the dry season (April), the transition (January and July) as well as the rainy season (October) does not hazardous to the RDE site. Maximum threat zone occurs in dry season at April (wind speed 1.54 m/s), which reaches radius 179 m with airborne LPG concentration 5500 ppm, radius 111 m with concentration 17000 ppm and radius 71 m with concentration 53000 ppm. (author)

[en] China's refining industry has embarked on a massive overhaul and expansion to accommodate soaring domestic growth in refined products demand. Currently that growth in demand is being met by increasing imports of refined products, in recent years attaining triple digit growth rates and squeezing direly needed foreign exchange. The focus is on adding refining capacity of about 1.4 million b/d to the current capacity of about 3.2 million b/d by 2000. Priority for increasing capacity is being given to expanding existing refineries and participating in foreign joint venture grassroots refineries along China's booming coastal regions as well as hiking output. A major challenge for China's refineries is that country's reentry into the General Agreement on Tariffs and Trade (GATT), recently signed in Morocco by more than 100 nations. The accompanying reduction of tariffs on imported refined products will make it more difficult for China's marginal refineries to compete in the domestic market. The paper discusses imports and exports, LPG outlook, refining capacity, revamps needed, third party processing, China's first joint venture refinery, industry plans, and GATT challenges

No abstract available

[en] Lack of cooperation from the original equipment manufacturers, the advancing technology in automobile manufacturing, and the shortage of resources by aftermarket conversion shops have been cited as the principal reasons for the stagnation in vehicle engine gas conversion technologies.The possible repercussions of this state of affairs on the market were reviewed. Original equipment manufacturers may be forced to invest in alternative fuel development to ensure the continued development of alternative fuel technologies, perhaps along the lines of the Geo Metro/Suzuki Swift project

[en] As the culmination of five years of developmental work by Cummins Engines, BC Research Inc., and BC Gas Utility Ltd., a T800 Kenworth truck was outfitted with a new Cummins L10G natural gas engine, and two lightweight fully -wrapped Dynetek cylinders; it was pronounced to be 'a viable clean truck today'. The L10G spark-ignited engine operates at a relatively high peak efficiency of 37 per cent and is commercially available to meet the current California Air Resources Board heavy duty vehicle emission standards without the use of a catalytic converter. The L10G engine produces no particulate emissions, a very significant advantage, in view of the fact that particulate emissions have been identified as major contributors to respiratory ailments

[en] The tracer method has been applied in the investigation of condensate - gas reservoirs, helping to provide important information such as the connection between injection wells and production wells as well as phase saturations. In particular, Perfluorocarbons gas tracers (PFCs) are commonly used because of their outstanding advantages such as stability and environmental friendliness. The partition of PFCs in the gas-condensate phases is characterized by the partition coefficient Kd - the ratio of the PFCs concentrations in condensate and gas phases at equilibrium conditions. This study presents a method for calculating the Kd coefficient of PFCs in hydrocarbon-gas phases based on the parameters such as the equilibrium coefficient of the tracer, the density of the phases and the average molecular mass of the phases. The method was then verified with the measurement data of the partition coefficients of the PFCs at a temperature of 70oC and a pressure range of 1000 - 2000 psi on the fluid collected from the STT condensate - gas reservoir with an error of 10% compared with experimental data. (author)

[en] The Screening Distance Value, SDV for each type of hazard source must be determined using a conservative approach so that the influence of the interactions event that are beyond this distance will be ignored. From observations, the most immovable sources around the site are the Petrol station (SPBU) and the LPG Station (SPPBE). Therefore, the objective of this study is to determine the SDV of SPBU and SPPBE for explosion and fire scenarios at the the Experimental Power Reactor site (RDE), Serpong Puspiptek. In this study, the Area Location of Hazardous Atmospheres (ALOHA) software was chosen to simulate the threat zone of explosion and fire from the substances of Gasoline and LPG. This simulation involves explosions and fires of iso-octane at gas stations and butane in SPPBE to analyze threat zones from accident scenarios. It is known that SDV is very dependent on the type and capacity of hazardous materials, accident scenarios and atmospheric conditions on the source of the hazard. From this study, also known a source of danger can have SDV of more than one value. SDV gas stations with a capacity of 170,000 liters for fire scenarios are 976 m and 1,200 m, while for explosion scenarios are 958 m and 1,200 m. SDV SPPBE with a capacity of 25,000 kg for the fire scenario are 445 m and 565 m, while for the explosion scenario are 430 m and 573 m. While SDV SPPBE has a capacity of 100,000 kg for the fire scenario are 913 m and 1,100 m, while for the explosion scenario are 758 m and 1,100 m. This study can provide an alternative determination of SDV for nuclear reactor site study and evaluation. (author)

No abstract available