Solution Examples Marine and Harbour Transportation Overland Transportation Responses to Special Cases Tripartite Shipping Marine and Overland Transportation Information Systems Relay Base System Yard Management System There are countless cases of solutions that we have offered across the globe, taking advantage of our abundant assets and available equipment covering ports, sea and land.Mainly transporting large and heavy equipment to overseas plants, our logistics power supports industries somewhere on the globe everyday.Crankshaft being exported / Casting & Forging Plant Tire Curing Press / Machinery Plant Frame for a Carbon Press / Industrial Machinery Plant LNG Vaporizer / Equipment Plant Barge Transportation of a Reactor / Equipment Plant Offshore Crane Operation / Equipment Plant Heavy Cargo Transportation by Purpose-Specific Trailers Go to the contents of this page.HOME> English HOME>RESEARCH & DEVELOPMENT>By technology classification> High-performance open rack LNG vaporizer SUPERORV Osaka Gas believes that technologies serve as the foundation of corporate competitiveness, and considers R&D to be one of the most important elements in the strategy to make a difference.For this reason, Osaka Gas works actively on R&D and commercialization of new technologies, as presented below.

High-performance open rack LNG vaporizer SUPERORV Overview Features Heat transfer tube structure Installations SUPERORV-mini (4 m long tubes) for replacement Overview The open rack LNG vaporizer (ORV) uses seawater as its heat source to vaporize LNG and incorporates panels comprising heat transfer tubes made of aluminum alloy.Liquefied natural gas flows upward inside the heat transfer tubes, while seawater flows down over the outer surface of the panels.The conventional ORV had limitations in reducing the used volume of seawater and the size due to ice formation on the outer surfaces of the heat transfer tubes.In 1996, Osaka Gas and Kobe Steel, Ltd.jointly developed a high-performance ORV (SUPERORV) in which the vaporization capacity per heat transfer tube is about three times higher than the conventional ORV.The key features of SUPERORV are a twofold increase in inside diameter of heat transfer tube from the conventional models and a double tube structure with inner tubes inserted in the lower part of the tube (low-temperature heat transfer section) of enlarged tubes.The results are the reduction of approximately 10%, 40% and 15%, respectively, in construction cost, footprint and seawater requirement, respectively, compared with the conventional type from Kobe Steel, Ltd.

Features Decreasing the number of heat transfer tubes contributes to construction cost reduction and efficient land use.When replacing an existing ORV, choose a suitable tube length for the existing facilities to reuse the panel support structure for a cost reduction.Heat transfer tube structure Increasing the LNG flow rate per heat transfer tube is the key to improving ORV performance.However, the conventional ORV had limitations in heat transfer performance due to the following reasons.The lower part of heat transfer tubes is subject to ice formation on tube surfaces due to direct heat transfer between seawater and cryogenic LNG.Ice formation causes lowering of thermal conductivity for 1/40 less than that of aluminum alloys.The thicker ice formation comes to a larger heat transfer resistance.Ice covers fins formed on tube surfaces and reduces the effective heat transfer area.Therefore, Osaka Gas and Kobe Steel noticed that minimizing seawater ice formation would be substantially effective for improving ORV performance.

The most notable feature of SUPERORV is that the heat transfer tubes have a double tube structure havong inner tube inserted in their lower part (LNG vaporizing section).Figure 1 shows the structure.LNG flowing through the annular channel turns into vapor phase faster than LNG flowing through the inner tube, as shown in Fig.penske vaporizer reviewThe vapor phase gas acts as a moderate heat transfer resistance, retards seawater ice formation caused by temperature decreases on the outer tube surfaces, and prevents ice forming that covers fins on tube surfaces.e cigarette cavignacAccordingly, it makes possible the increase of LNG flow rate and the improved performance of the heat transfer tube.e cigarette summit usj

Installations A total of 102 SUPERORV units (6 or 8 m long tubes) have been installed in LNG terminals worldwide, including Japan, Spain, Portugal, France, Greece, Korea and China (as of December 2013).For its excellent performance and economy, SUPERORV received the Award For Distinguished Service in June 2002 from the Japan Gas Association, and the Heat Transfer Society of Japan Award For Technical Achievement in May 2003.vaporizer vasarlasSUPERORV-mini (4 m long tubes) for replacement In recent years, there has been a growing demand for replacing ORV (4 m long heat transfer tubes) that installed in the pioneering period of LNG utilization (1970s - 1980s) due to aging.top vape juice flavors 2015It is possible that ORV replacement cost is reduced by reusing the existing panel supports and ancillary piping and replacing only the main vaporizer assembly (heat transfer panel).vaporizer pen best price

Moreover, further cost reductions and efficient land use can be achieved by applying a new high-performance vaporizer and decreasing the used number of heat transfer tubes.As a solution to this challenge, we released SUPERORV-mini in addition to the existing lineup.idylis vaporizerSUPERORV-mini is one of the SUPERORV (6 or 8 m long heat transfer tubes) series that optimized heat transfer tube shape for 4 m tube length applications based on our experience in heat transfer analysis technology and a great deal of actual operation data.ttzig vaporizerCompared with the conventional 4 m ORVs (paired fin type), SUPERORV-mini can realize the reduction of 70%, 35% and 20%, respectively, in number of heat transfer tubes, footprint, and replacement cost.Osaka Gas installed the first commercial SUPERORV-mini in November 2007 at Senboku LNG terminal 2, which has proven that it delivers the performance as intended.vaporizer farlig