Solution provider
Case
Buildings
Combined heat and power production
District energy
+10
Steam Generation System for CSP Plants, UAE
6. March 2019
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The Dubai 700MW CSP + 250MW PV Hybrid Project
The record-breaking Dubai 700MW CSP+250MW PV Hybrid project developed by ACWA Power, with Shanghai Electric Group Corporation as EPC constitutes the fourth phase of the Mohammad Bin Rashid Al Maktoum Solar Park and is an important part of Dubai's Clean Energy Strategy - a strategy under which 75 % of Dubai's energy will be generated from clean sources by 2050. When completed, the solar park will provide clean energy to more than 270,000 residences in Dubai, while reducing the carbon emissions by 1.4 million tonnes per year.
Header-and-coil technology preferred over standard shell-and-tube type
With the steam generator systems from Aalborg CSP, the Dubai 700 MWe CSP Project will benefit from state-of-the-art boiler designed heat exchangers based on the header-and-coil technology. The header-and-coil design from Aalborg CSP originates from traditional boiler technology and is a 100 % welded coils type based on steam boiler technology, rather than a conventional TEMA-type based steam generator using U-tube design. The header-and-coil design has a higher availability from the no leakages design and thus lower operation and maintenance cost. Since Aalborg CSP’s entry on the CSP market, the company’s steam generator technology has won several international awards, due to its no-leakage design and higher performance features. In 2019, Aalborg CSP celebrates its 10-year anniversary for no leaks in header-and-coil.
Eliminating leakages with header-and-coil technology
Leakages are one of the main causes for breakdowns causing unplanned downtime for CSP plants and is considered a major quality issue within heat exchangers and steam generation systems for CSP plants. During repairs, the steam generator is drained and cooled down resulting in massive loss of revenue, as the system cannot produce steam while repairs are made. The majority of TEMA U-tube type equipment has leaking issues, as it is not suited for the frequent system starts/stops and load changes in large-scale CSP plants.
The header and coil type equipment on the other hand possesses the ability of absorbing the dynamic loads and thermal stress of large-scale CSP plants. This technology eliminates leakages, avoiding unnecessary maintenance and system downtime.
Due to the patented header-and-coil design for CSP applications, Aalborg CSP is capable of demonstrating a proven track record of 10 years leakage-free operation, which presents the client with the optimal amount of availability and thereby productivity, electricity revenue and the general payback time of the power plant are greatly improved to lower the cost of energy.
