JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 36

FEATURE “Transportation” Development of a composite pressure vessel This paper sums up five years of research and development focused on producing composite pressure vessel prototypes for the transportation of substances in powder form. Twenty years ago, Spitzer Eurovrac, a European leader in bulk powder transportation, was one of the first to consider replacing stainless steel with aluminium for this kind of vessel. They successfully reduced the weight of the vessel and then, a few years later, the weight of the trailer chassis. Since 2002, the company has been preparing the transfer from metal to composite with the support of Cetim-Cermat for design, calculation and process development. PATRICK GANTZER, TECHNICAL DIRECTOR, PROJECT MANAGER, SPITZER EUROVRAC AND FABRICE LAURENT, MATERIALS DEPARTMENT MANAGER, COMPOSITE EXPERT, CETIM-CERMAT the very beginning. Cetim-Cermat is a French laboratory with expertise in metallic, polymer and composite materials, as well as in measurement and testing. The company is also a close partner of the Cetim, the Technical Centre for Mechanical Industries. Composite tipper tanks esigning and producing composite pressure vessels is not new and many different solutions have been developed over the past twenty years. These solutions proved to be particularly efficient when steel or stainless steel was directly replaced with composite materials. For example, composite tanks are increasingly used for the storage of gaseous, solid and liquid materials. While gas storage tanks are concerned by pressure vessel regulations, solid and liquid storage tanks are more often used as static tanks without any pressure, except the hydrostatic pressure of the fluid. The novelty of the project discussed in this paper is due to the fact that it combines many different constraints in response to the regulations applicable to pressure vessels and to road and goods transportation. The objective was to reduce the weight of the tank by over 20% in comparison with aluminium. The Spitzer group has a world-wide reputation as a specialist in the field of vehicles equipped to discharge powders under air pressure. The group offers two types of products: horizontal tanks, which discharge the product from the bottom; and tipper tanks, which discharge via a single outlet at the back of the tank. These two types of tanks may be mounted on a trailer or semi-trailer chassis, on a supporting frame, or be used as a road container. The trailer and semitrailer chassis are manufactured in Germany, France and Hungary. Cetim-Cermat has participated actively in the project from Spitzer decided to shift from metal to composite in 2002. Only the tipper tanks (see figure 1) were concerned by this development, the trailer chassis was not modified. Fig. 1: Aluminium tipper tank The project initially aimed at optimising transportation costs (reducing travelling costs, making the loaded and return trips profitable) and allowing quick and easy cleaning of the tank’s inner walls so as to avoid contamination. Composite materials fulfilled the project requirements since the internal gelcoat demonstrated a perfectly smooth, nonporous surface that can be washed easily. Moreover, its greater heat insulation coefficient reduces condensation risks and hence the formation of crusts. The choice of available resins also considerably extends the range of products that JEC Composites Magazine / No36 October - November 2007

JEC COMPOSITES MAGAZINE - Issue #36 - October 2007

Table of Contents for the Digital Edition of JEC COMPOSITES MAGAZINE - Issue #36 - October 2007

- Trends
FEATURE: TRANSPORTATION
- Measurement
Edito
BUSINESS
- Innovations
- Niche markets
- Companies
- Application
- Successful partners
- Composites in the world
CONTENTS
KNOW-HOW
- Process
USERS’ PLATFORM
- Market
- Market survey
NEWS WORLDWIDE
- Prototyping
- Agenda of events
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 1
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 2
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - Edito
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 4
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 5
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - CONTENTS
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 7
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - NEWS WORLDWIDE
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 9
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 10
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 11
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Agenda of events
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 13
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Innovations
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 15
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 16
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - BUSINESS
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Market survey
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 19
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 20
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 21
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 22
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 23
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 24
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 25
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Trends
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 27
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Niche markets
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - FEATURE: TRANSPORTATION
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Market
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 31
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 32
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 33
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Application
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 35
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 36
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 37
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 38
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 39
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JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 45
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 46
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 47
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 48
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - USERS’ PLATFORM
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Composites in the world
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 51
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Successful partners
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 53
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 54
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 55
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 56
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - KNOW-HOW
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Prototyping
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 59
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 60
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 61
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Process
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 63
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 64
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - - Measurement
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 66
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 67
JEC COMPOSITES MAGAZINE - Issue #36 - October 2007 - 68
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