3D Views of Refrigerator Design Comparisons
Double Glazed Door
Insulated Door (Glass Wool)
Close-up of Temperature and Flow Distribution Predictions
Double Glazed Door
Insulated Door (Glass Wool)
ECH Engineering Ltd
ECH Engineering is where academic analysis meets practical application.
Dr Hammond is a chartered mechanical engineer, FGas qualified and has over 10 years’ experience in the refrigeration industry working on prototype design, build and development, production of novel refrigeration systems, energy saving and optimization. ECH Engineering has the academic skills to design or analyse conventional and novel refrigeration systems and the workshop capability to build or optimize them.
Whether an off the shelf solution just doesn’t meet a client’s needs or un-tested new ideas need proving, ECH Engineering design, build and test ‘proof of concept’ prototypes routinely. ECH Engineering is also equipped to build or repair most refrigeration systems and has engineering facilities including milling, turning and welding for mechanical ‘turnkey’ projects. Servicing, repairs or diagnostics of refrigeration systems is also a major part of their overall solution. Whether a client just wants to know what’s wrong, needs it fixing or even has a recurrent problem, ECH Engineering can help.
‘In order to help validate the performance of a be-spoke peltier cooled refrigeration solution, as quickly as possible, for a new concept design, ECH commissioned 8020 Engineering to provide some additional consultancy assistance to their ongoing development activity. Shown on the right is a brief summary of a CFD study carried out on a new concept refrigerator.’
Managing the convective air flow paths and conduction behaviour within and around the refrigerator assembly efficiently can substantially reduce operating power requirements and eliminate the likelihood of warm zones. Using CFD simulation, a complete three-dimensional thermal map can be obtained from any environmental conditions and once a concept is selected further simulations can be carried to refine the idea or test the impact of manufacturing or material specification constraints.
CFD techniques also helped ECH Engineering really understand why the refrigerator has certain behavioural characteristics in that the fluid flow paths could be easily visualized and re-circulation, or dead zone areas, better understood that reveal performance issues such as warm zones. This then facilitated design change that redistributed the dominant heat transfer paths.
Using CFD simulation for thermal performance prediction can dramatically reduce the amount of physical prototypes and test work required which will either reduce product development lead times, cost of the project or enhance the quality of the product received by the client.
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