Used for high level feasibility and concept studies.
Do you already have an equipment list and PFDs, but no detailed Material Take-Offs (MTO) yet? The CESK Objects are the missing link between high level estimating and detail estimating methods.
With the CESK Objects you can improve the estimate accuracy already at an early phase of the project. Even without a full Material Take-Off (MTO) sheet you can already build-up your estimate with detailed quantities, using characteristic values.
The CESK Objects include typical equipment items (objects). The object models allow the user to specify the main parameters for various equipment types and automatically calculate not only the equipment supply cost but also all other related costs. All associated items are included in your estimate using the characteristic values of the equipment, derived from more than 2000 executed projects. This includes disciplines such as piping, insulation, painting, installation, electrical, instrumentation and civil.
In order to develop these metrics and to ensure that these can be used for other projects, the characteristic values are defined within certain boundaries, the Inside Battery Limit (ISBL).
Choose from the tabs below to view additional information about CESK Objects.
The available objects are based on engineering design principles, as well as on data from actual executed projects. The CESK Objects Knowledgebase contains models for the main equipment items presented below:
Columns are the most commonly used separation equipment. Apart from specifying the dimensions, the cost model also accounts for the presence of additional external and internal elements. The column weight is calculated taking into account these elements which have a direct impact on the structural requirements for the column. Similar to the pressure vessels and storage tanks, the column cost model also provides choices for the piping material and required amount of painting and insulation.
The CESK Objects knowledgebase contains objects for the main heat exchangers used in the industry today such as Shell &Tube and Air Cooled exchangers. These objects are dynamic cost models, in which the user can input the heat transfer area and automatically get a component that includes the supply cost of the heat exchanger, but also installation costs, instrumentation and piping.
The CESK Objects knowledgebase includes 25 types of pumps which cover a wide range of operating conditions. In addition to the equipment itself, the cost models include auxiliary components for the piping, electrical, instrumentation and civil disciplines in order to capture the entire cost of the object.
Storage tanks are typically used to store process fluids under different conditions. Different types of storage tanks (e.g. Cone bottom, floating roof, spherical tanks etc.) are included in this knowledgebase and can be selected based on capacity and the medium being stored. The basic piping and instrumentation arrangement remains roughly the same for different types of storage tanks. The cost model calculates the line size, schedule and pound rating for typical storage tank connections. The default instrumentation quantities specified from standard P&ID’s can be changed as per project requirements.
Pressure Vessels are widely used and play a vital role in several applications such as storage, knock-out, and phase separation to name a few. As an estimator, you will encounter pressure vessels in different orientations (horizontal and vertical) with additional functionality, namely jacketing, multiple wall etc., to meet specific process requirements. Apart from standard inlet, outlet and blowdown connections, the cost model also provides the option to include nitrogen blanketing, pump recycle and vapor relief lines depending on the vessel service. The estimator has the flexibility to choose the material for piping and the required amount of painting and insulation.
All these models are created based on engineering design principles as well as on data from actual projects and can be used for high level estimating.
If you want to know more about CESK objects and CESK data, please feel free to contact us.