Description: Das Projekt "Development of a floating lpg terminal based on a concrete barge with wet wall insulation of the storage compartments" wird vom Umweltbundesamt gefördert und von LGA Gastechnik GmbH durchgeführt. Objective: Since the erection of land-based storage tanks for LPG in coastal terminals will face increasing difficulties (space requirements, safety consideration) it is the aim of the project to develop a storage unit which can be operated either floating in fore-shore areas or grounded at-shore. A mobile floating unit can be towed to the final site of operation, which, in many cases, may be an economical alternative to a fixed founded structure especially in regions with insufficient infrastructure. Another advantage is the fact that the whole equipment, including the reliquefaction plant and the storage tanks, can be installed at the construction site of the barge where all facilities are available in order to guarantee a high standard of fabrication. Once completed, the LPG terminal is towed to the location and anchored. General Information: The construction elements of the storage facility are concrete for the floating body and polyurethane foam for the insulation of the load bearing concrete walls of the containments. The special aspect of the project is the so-called wet wall insulation. Whilst the conventional insulation of low-temperature storage tanks is applied on the outside of the storage tank (and therefore not in contact with the liquid), a wet wall insulation shall be fitted inside the storage tank. This means that the insulation material is wetted by the stored liquid. Consequently, the effects of liquid/gas absorption, desorption, possible cracks and other defects have to be taken into account, when it comes to the selection of suitable PU foams. The target of the proposed development is to achieve a wet wall insulation consisting of: - a vapour barrier (liner) directly applied on the concrete walls - sprayed polyurethane foam built up in several layers - possibly reinforcement layers and/or LPG barriers incorporated in the PUF or applied into the PUF surface. The wet wall insulation will have the following main functions and characteristics: - thermal insulation to limit boil-off - a liquid barrier to prevent contact between concrete and cold LPG and to prevent LPG leakage - the vapour barrier prevents water vapour penetrating into the insulation - above functions must be fulfilled in a floating barge, in which the concrete barge as well as the LPG are to be considered as dynamic (liquid impact resistance) - insulation has to be load bearing. The development is aimed to achieve a technically acceptable and economically attractive floating LPG terminal. The wet wall insulation applied against the inner face of the barge's concrete compartments and in direct contact with the LPG is the essential part, because - it saves space and thus cost - it eliminates a double containment (e. g. insulated steel tanks placed inside or on a concrete barge). Achievements: CONCRETE BARGE: The design features of 2 types of storage barges, i.e. for the beached and floating version are available. For the beached storage barge, the results of ...
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Stahlbeton ? Dämmstoff ? Flüssiggas ? Schaumstoff ? Beton ? Baustoff ? Polyurethan ? Main ? Brüden ? Temperaturverteilung ? Wärmebelastung ? Wasserdampf ? Absorption ? Containment ? Gewährleistung ? Küstengewässer ? Beschichtung ? Flüssiger Stoff ? Tankbehälter ? Baustelle ? Desorption ? Innovation ? Kostensenkung ? Schiff ? Sicherheitstechnik ? Stand der Technik ? Standortwahl ? Tankanlage ? Tanklager ? Wirtschaftlichkeit ? Küstenregion ? Stahl ? Leckage ? Gasspeicher ? Anlagenbau ? Bauelement ? Produktdesign ? Substitutionseffekt ? Isolierung ?
Region: Rheinland-Pfalz
Bounding box: 7.5° .. 7.5° x 49.66667° .. 49.66667°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 1987-07-01 - 1989-12-31
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