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Design Innovations
Flow Condition
Laminar ( Re = 239 )
' Turbulent ' ( Re = 4788 )
Performance parameter
Table 3 : Conventional counter-flow heat exchanger performance
Simulation of design
Cold Side
Hot Side
Nu 8.41 9.99
f 0.6 0.51
Nu 19.5 20.6
f 0.072 0.065
their higher operating temperatures also mean that in order to successfully exploit these broader uses of ANTs , novel heat management and extraction technologies will be necessary . The goal of this project was to use topology optimization ( TO ) to generatively design a printed circuit heat exchanger which can be used downstream of a high-temperature gas reactor for hydrogen cogeneration . The TOffee generative design software was used to create two different PCHX designs – one in cross-flow and one in counter-flow . The performance of these novel PCHX designs was estimated using a high-fidelity conjugate heat transfer analysis method which models both the fluid flow and heat transfer through the solid parts of the heat exchanger . In these simulations , the working fluids were helium / helium , and the heat exchanger material was a
high-temperature nickel alloy . The performance of the TO-designed heat exchangers was compared to a conventional PCHX design like the ones used in the JAEA HTTR reactor . We showed that across both laminar and turbulent flow conditions the performance of the TO-designed PCHX was quantifiably better than the traditional design , with up to 8.5 % increased heat transfer at the cost of only 4 % increased pressure losses . These performance gains come with negligible increases in temperature gradients and hence thermal stresses . Furthermore , the TO-designed PCHX can be manufactured using traditional PCHX manufacturing techniques , removing the need for complex qualification pathways that may be necessary for extremely complex additively manufactured components .
About the company
TOffeeAM is a spin-out company from Imperial College London that develops cloud-based multi-physics software that automates the design process to maximize the performance of thermo-fluid components based on multi-objective optimization .
References
1 . Kazuhiko Kunitomi et al . Paper 1059 Design and Development of Gas Turbine High Temperature Reactor 300 ( GTHTR300 ) GENES4 / ANP2003 , Sep . 15-19 , 2003 , Kyoto Japan
Best-in-class
With ACE as a world market leader , Christof Group spearheads the supply and installation of tailormade solutions and reliably engineered critical process equipment needed at the heart of polymer plants . An extensive track record of innovative solutions delivered for the oil and gas sector and the pharmaceutical industry has made ACE a global leader . ACE has many years of experience in the construction of heat exchangers and air coolers and offers solutions for every industry by developing individually designed heat exchangers for various applications . Especially the petrochemical industry appreciates ACE as a competent and reliable partner . critical process equipment
CORE COMPETENCES
› Engineering and apparatus construction ( reactors , heat exchangers , columns , pressure vessels etc .) › Repair and maintenance works ( re-tubing of heat exchangers , partial renovation of columns , repair works on equipment ) › Chemical & Process Design acc . to HTRI ( design of shell-and-tube heat exchangers , optimization of existing apparatuses etc .) › Mechanical processing › International certificates ace Apparatebau construction & engineering GmbH Hans-Thalhammer-Strasse 18 8501 Lieboch / Austria T + 43 3136 63600 0 F + 43 3136 63600 4600 E ace . office @ christof-group . com W christof-group . com / ace