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ICHMT DIGITAL LIBRARY ONLINE

ISSN 961-91393-0-5

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$246.00 (Must be sent to your home address)

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Year 2004

• 3Thermal Sciences 2004
Proceedings of The ASME - ZSIS International Thermal Science Seminar II, Bled, Slovenia, June 13-16, 2004

1032 pages

Volume price - $246.00

Industrial Refrigeration and Ammonia Enhanced Heat Transfer

Dr. Zahid H. Ayub
Thermofluids International Division of Ayub and Associates, INC, P.O. Box 170206, Arlington, TX 76003-0206 USA
Technology Editors

ABSTRACT

For the last two decades enhanced heat transfer equipment has been widely used by the halocarbon-based air conditioning industry. The persistent issue of ozone and global warming has led to interest in natural refrigerants such as ammonia which has played a prominent role in the refrigeration industry for years, particularly in the field of food, beverage and marine. The United States food industry has almost exclusively used ammonia as a refrigerant of choice thus far. Therefore, in view of the present situation and the future of air-conditioning and refrigeration industries, it is important to study the role of enhanced heat transfer technology as applied to natural refrigerants. This paper presents an over view of the status of ammonia as a refrigerant of the past, present, and future and what has been done and ought to be done in order to make ammonia equipment more safer, compact, and attractive so it can be readily accepted by the general public.