000 02399nab a2200241 4500
005 20260520003103.0
008 260224s2012 xxu ing
041 _aInglés
245 0 0 _aNumerical Investigation of an Absorption-Diffusion Cooling Machine Using C3H8/C9H20 as Binary Working Fluid
260 _a
_b
_csept./oct. 2012
270 _a07/08/2013 ; 07/08/2013
300 _a5 p. ; 249-254
520 _aTraducción del resúmen del autor: This paper is concerned with the analysis and the simulation of a heat-driven absorption-diffusion cooling machine which can operate with low-grade heat sources. The simplified configuration of the heat-powered absorption-diffusion refrigerating machine considered in this study is based on the Platen-Munters single pressure refrigerators principle [Platen B.C.V. and Munters C.G. (1928) Refrigerator, US Patent 1, 685-764J. Three working fluids are used, nonane as an absorbent, propane as a refrigerant and hydrogen as the inert auxiliary gas. The designed cooling capacity of the machine is 1 kW which is suitable for a domestic use for refrigeration purposes. We restricted the maximum temperature of the driving heat supplied to the generator to 130 °C, a temperature achievable with evacuated-tube solar collectors. The simulations are carried out using a commercially available flow sheeting software with the PengRobinson equation of state as property prediction method. In this paper, we analyze the heat and mass transfer characteristics in all relevant machine components (absorber, condenser, generator and solution heat exchangers). The simulations results allow determining the values of different parameters of the systems such as the refrigerant and the solvent temperatures in various points of the machine, the liquid and the vapor flow rates and compositions. The system performances were parametrically analyzed using the flow sheeting software. Performance characteristics were determined for a wide range of operating conditions allowing investigating and evaluating the effect of various design parameters.
581 _a2
773 0 _tOil and Gas Science and Technology
_g68
942 _cARTICULO
100 1 _aDardour, H.
_953406
100 1 _aCézac, P.
_953407
100 1 _aReneaume, J.M.
_953408
100 1 _aBourouis, M.
_953409
100 1 _aBellagi, A.
_953410
999 _c187841
_d187841