| 11-déc.-17

Molten Salt Steam Generator

CMI Solar

|

CMI Solar with the support of CMI Energy

01.12.17 2

The team:

Yves LECLOUX - Draftsman.

Stéphane WINAND - VP Engineering.

Freddy DETHIER – Chief Technical Officer.

Aldo GRESSANI – Welding Engineer.

Klaas HAESEN - Draftsman.

Julie BUCCI - Calculation Engineer.

Detaille Christopher – Calculation Engineer.

Jean-Michel WAUTELET – Sales Manager.

Thomas BAUTHIER– Proposal Engineer.

Ridha HARZALLAH – Patent Engineer.

The sponsor:

Eric ABSIL - President CMI Solar.

The synergy:

Strong support from the Welding Expertise Center and CMI corporate for the manufacturing aspect of the heat exchangers.

Close collaboration between CMI HRS & CMI Solar, especially with the central engineering and procurement department to benefit from their expertise and network (Quality, process, vibration, performance model, lifetime analysis, cost estimation).

External consultants such as GDTech (FEA & CFD) and EnerjConsult (expertise in shell & tubes).

CMI Solar

CES

CMI HRS

CMI Corporate

External Support

|

Achievements

01.12.17 3

Context:

Request from some Spanish EPCs to develop a Molten Salt Steam Generator able to start quickly.

Request from CMI´s management to increase our portfolio in the CSP market and to develop this key component.

Achievements:

Starting from scratch, CMI solar has developed and bring on the market this equipment for which a patent was lodged. This patent is related to the innovate design of the tubesheet and the helical baffles which improve the efficiency and the reliability of this equipment.

For the last 18 months, CMI solar has focused on the following aspects:

A performance model has been validated thanks to several CFDs calculations and implemented in Vali software.

The behaviour of the heat exchanger during transient has been validated via FEA.

The manufacturing aspect has been discussed with potential suppliers in Korea and India.

Welding mock-ups have been done by the welding expertise center.

This new product has been presented to potential customers but also publicly at the CSP conference in Sevilla.

|

Goals

01.12.17 4

Extend CMI solar scope of supply for concentrated solar power plants:

CMI solar is now able to propose to its customers both the solar receiver and the molten salt steam generator. As a

result, CMI solar will reinforce its position in this niche market in accordance with CMI 2017-2022 business plan.

Key features

Thanks to CMI innovative heat exchanger design, CSP plant owners will be able to operate plants during peak load and

fully benefit from molten salt technology.

Flexibility

Frequent start-ups : two hot starts a day.

Wide range of operation from 20% to 100% load.

Withstand high temperature ramps.

Reliability

Adequate material selection.

Leakage-free design.

Corrosion-free design.

Operating cost

Reduced pump consumption.

Fouling-free design.

Easy installation, operation and maintenance.

|

People impacted & involved

01.12.17 5

People impacted

CMI Energy, especially CMI solar and CMI HRS will benefit from this new product in case of order.

People involved

CMI solar development team:

Stephane WINAND & Ildo AGNETTI who have been in charge of leading this development.

Yves LECLOUX who was the entitled draftsman of this project.

Julie BUCCI & Christopher DETAILLE, both of these calculation engineers have performed all thermal and mechanical calculations to design these heat

exchangers.

Ridha HARZALLAH who has lodged a patent associated to this innovative solution.

Thomas BAUTHIER who was in charge of estimating the cost of this piece of equipment.

Klaas HAESSEN who realizes outstanding videos for the marketing promotion of the molten salt steam generator.

Freddy DETHIER whose his invaluable experience was very helpful during this development.

CMI HRS:

Fabienne DEMOITIE who was in charge of developing a specific software to determine potential vibration issues.

Pierre DANS who kindly integrated all the equations in VALI software.

Sylvain JESUPRET who issued all the related P&IDs.

Gauthier COUNET & Betty BIEMAR who were in charge of sourcing potential heat exchanger manufacturers.

Welding Expertise Center:

RICAIL Jean-François who has performed some welding tests on the Internal Bore Welding Connection.

|

Key Dates

01.12.17 6

Key Dates

01/06/2016: Kick off Meeting of the development.

22/12/2016: Presentation of the 1st design to Abengoa Solar.

04/04/2017: Presentation of the 2nd design to Abengoa Solar.

19/09/2017: First brochure for the SolarPaces conference.

20/09/2017: End of the CFD calculation.

22/09/2017: Price review.

25/09/2017: Manufacturing mission in Korea.

04/10/2017: Presentation of the 3th design to ACWA.

18/10/2017: Design review.

13/11/2017: Manufacturing mission in India.

21/11/2017: Public presentation of the MSSG at the New Energy Update conference in Sevilla .

Job to be done

13/11/2017: Development committee

14/11/2017: Design review part II.

15/11/2017 : Welding mock-ups.

Mars 2018: Manufacturing of a skeleton.

|

Internal communication and marketing

01.12.17 7

Internal communication

The molten Salt Steam Generator was presented internally to the solar department.

It might be presented to CMI HRS during the next communciationmeeting.

Marketing

A brochure (available in English and in Spanish) was produced by the communication department of CMI Energy and giving away during the SolarPaces conference.

This new product was publicly presented during the New Energy Update conference in Sevilla in front of some key Spanish EPC such as Abengoa and Sener.

A detailed presentation was organised in Dubai in front of ACWA power, one of the biggest investors in CSP plants. Similar technical meetings will follow.

|

Budget

01.12.17 8

Internal resource

Approximately 75 man-months over the last 18 months, mainly from CMI solar department and CMI HRS.

Budget

So far, around 160 000€ have been spent mainly for CFD/FEA, corrosion test and mock-ups.

It is expected to spend another 50 000€ in mock-ups to validate the manufacturing sequence.

|

Perspectives

01.12.17 9

Perspectives

The number of CSP plants is expected to grow in the next 30 years.

CSP plants will work in combination with PV and, as result, these plants will work as Peaker plants. As a consequence, CMI solar

should be able to propose this new product to potential customers over the next 35 years.

|

Key indicators

01.12.17 10

Feedback from EPC/Suppliers

ACWA approved CMI´s design and, as a result, CMI is allowed to submit a bid for DEWA project.

VastSolar, a small Australian EPC, would like CMI to provide a MSSG for their next 30 MWe project.

Sener is willing to organize a technical meeting to discuss more in details CMI´s solution.

|

Project overview

01.12.17 11

|

www.cmigroupe.com

01.12.17 12