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Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.2013006189
pages 665-686

TRIPLE TUBE AMMONIA EVAPORATOR DESIGN FOR DOMESTIC ABSORPTION REFRIGERATORS

Ahmed Mohammed Adham
Erbil Polytechnic University
Normah Mohd-Ghazali
Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor Barhru, Malaysia
Mikdam M. Saleh
Power Engineering Department, College of Engineering, University of Baghdad, Al‐Jadriya, Baghdad, Iraq
Robiah Ahmad
UTM Razak School of Engineering and Advanced Technology, Universiti Teknologi Malaysia International campus, 54100 Jalan Semarak, Kuala Lumpur, Malaysia

Краткое описание

A usable concept for an ammonia evaporator in an absorption refrigerator based on a triple tube design is considered. The differential equations that describe the energy transfer between the ammonia refrigerant and the ammonia hydrogen gas mixture are utilized to simulate the thermal and hydrodynamic performances and hence to determine the operation of evaporator. This simulation procedure is used to determine the geometrical parameters of the evaporator, subject to certain optimization criteria that were incorporated in a cost function. The final design of the evaporator, which is based on 100 W of cooling power at −6.7 °C, has a length of 1.523 m and triple tube diameters of 28.5, 22.2, and 15.8 mm. The evaporator's design is such that only a single penetration through the refrigerator's wall is necessary, which greatly simplifies the construction and reduces its cost.

Ключевые слова: ammonia, evaporator, heat transfer, absorption

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