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Başlık: Simulation of the transient response of heat driven refrigerators with continuous temperature control
Yazarlar: Vargas, José Viriato Coelho
Callander, T. M.S.
Fleming, John S.
Parise, José Alberto Reis
Uludağ Üniversitesi/Mühendislik Fakültesi/Makine Bölümü.
0000-0002-5519-8136
Horuz, İlhami
AAG-5647-2019
Anahtar kelimeler: Thermodynamics
Engineering
Refrigerating system
Absorption system
Heat exchange
Design
Pump
Yayın Tarihi: 1998
Yayıncı: Elsevier Science
Atıf: Vargas, J. V. C. vd. (1998). "Simulation of the transient response of heat driven refrigerators with continuous temperature control". International Journal of Refrigeration-Revue Internationale du Froid, 21(8), 648-660.
Özet: A theoretical and experimental study is presented and a mathematical model is introduced for a heat driven refrigeration system operating with continuous temperature control. The model consists of a refrigerated space, an absorption refrigerator, operating irreversibly, a temperature sensor and a reference signal, and a power law control action. The steady-state behavior of the absorption refrigerator model is validated by direct comparison between theoretical results and experimental data. The model is then used to identify an optimal thermal conductance allocation, for a fixed total thermal conductance inventory, such that the refrigeration rate is maximized and the 'pull-down' time is minimized. A simulation of the system operating in a transient mode is carried out to show that closed-loop operation results in a large reduction of fuel consumption, with respect to the 'on-off' operation. Appropriate dimensionless groups are identified and the generalized results reported in charts using dimensionless variables.
URI: https://doi.org/10.1016/S0140-7007(98)00009-7
https://www.sciencedirect.com/science/article/pii/S0140700798000097
http://hdl.handle.net/11452/21116
ISSN: 0140-7007
Koleksiyonlarda Görünür:Web of Science

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