Nguyen Quan creator Exell, R.H.B. Chairperson Bhattacharya, Sribas C. Examination Committee Lasnier, F. Examination committee Government of France Scholarship donor text th Bangkok Asian Institute of Technology 1989 monographic eng 72 p. + 1 online resource An intermittent ammonia-water absorption refrigerator heated by solar energy and specifically designed: 1) To provide a demonstration experiment for students in the Energy Technology Division, and 2) To provide a starting point for a new commercial solar refrigerator. The unit has an ammonia- water system constructed of black steel pipe, and a solar heating system using water as the heat transfer fluid between the solar collector and the generator. An electric pump is used to circulate the water in two loops. The flow of ammonia refrigerant is by pressure differences in the system and gravity. Hand valves, includes a hand- operated expansion valve, are used to control the flows. On a moderately fine day, the solution temperature in the generator rose to 95°C, water temperature at the outlet of collector rose to 97°C and 1.5 kg of ammonia liquid were produced with a solar collector area of 2 m2. The refrigeration process could be started at 6 p.m., earlier than previous systems. Procedures for student experiments are outlined. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering Thesis (M.Eng.) - Asian Institute of Technology, 1989 Solar energy Research Refrigeration and refrigerating machinery Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B17668 http://203.159.5.9/ait-thesis/detail.php?q=B17668 280998 20260818090101.0