Design life

When I used to design low-temperature storage tanks, the design life was also set at 50 years. Our company has specific technical documents regarding design life. It is reasonable if the design firm has its own technical documents ensuring a lifespan of 50 years. If not, follow the recommended lifespan as specified by relevant standards.

This post was last edited by wanlirn on 2017-8-1 18:44. Is the design life 50 years? The land use period for newly built factories is also 50 years. After 10 years, if the company goes public or splits up, the equipment is evaluated; if it has a design life of 50 years, it can be treated as new equipment. If the equipment’s design life is only 10 years, it is considered scrap. This is all imposed by the owners, and the designers also act out of emotion

This post was last edited by Menghan100 on 2017-8-2 at 08:43. 50 years is clearly not scientific; generally, it should not exceed 20 years at most – 50 years is simply a myth.

I’ve never seen anything that’s 50 years old except for nuclear equipment…

Is the design life 50 years? It’s too high...

This depends on the owner’s requirements. The design life of a container takes many factors into account; generally, petrochemical equipment has a design life of around 10 to 15 years, though there are also cases where the design life is longer. This is determined by various factors such as the overall lifespan of the project, the lifespan of the specific equipment, the payback period, the project’s profitability, and considerations for future upgrades and modifications. But 50 years is quite a long time.

The design life of a device refers to the expected service life of that device, which is a requirement set by the party commissioning the design. The design life of equipment is generally determined comprehensively based on various factors such as failure modes, the importance of the equipment in terms of economics, operational experience, as well as the service life of the complete sets of equipment and systems. There is a difference between the designed service life of a device and its actual period of use. The designed service life is an estimate provided by the designers based on the expected conditions of use and the importance of the device; this target value is intended to meet the expectations of those who commissioned the design regarding the device’s use, but it is not a guaranteed figure. Nor can the designed service life be simply considered as the time limit up to which the device can be used. The equipment we design is meant to have a design life of 50 years.

I’ve found a kindred spirit; I design low-temperature storage tanks, with a design life of 50 years as well! :handshake