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High heat transfer rate - PowerPoint PPT Presentation

ADVANCES IN FOOD REFRIGERATION Tuan Pham School of Chemical Engineering and Industrial Chemistry University of New So

ADVANCES IN FOOD REFRIGERATION Tuan Pham School of Chemical Engineering and Industrial Chemistry University of New South Wales tuan.pham@unsw.edu.au. History of Food Refrigeration. Harrison - ice making (1860), frozen meat export (1873) China 1000BC - ice harvesting

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884 views • 64 slides

Cycles

Cycles. A series of processes which return a system to its initial state Heat engine: receives heat; does work Reversed cycle: cool or heat when work done on system. Limitations. > 100% thermal efficiency Heat ? cold?. Performance. Thermal efficiency Coefficient of performance Cooling

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287 views • 24 slides

MAGNETIC REFRIGERATION

MAGNETIC REFRIGERATION. INTRODUCTION. Magnetic refrigeration is a cooling technology based on the magneto caloric effect . Invented by Emil Warburg in 1880 Used to attain cryogenic temperatures well below 1 o K with the help of magnetic fields. PRINCIPLE OF MAGNETIC REFRIGERATION.

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496 views • 15 slides

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High heat transfer rate - PowerPoint PPT Presentation

ADVANCES IN FOOD REFRIGERATION Tuan Pham School of Chemical Engineering and Industrial Chemistry University of New So

Cycles

MAGNETIC REFRIGERATION