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![Fig. 2: One-dimensional steady-state energy balance on absorber tube [19].](profile/Ahmed-Hamed-20/publication/281066672/figure/fig1/AS:284613487415297@1444868551578/One-dimensional-steady-state-energy-balance-on-absorber-tube-19_Q320.jpg)
The objective of this research is to simulate a solar double-effect absorption air conditioning system in Cairo, so a detailed study on applying this system for the Cairo University Building CUB located in Sheikh Zayed City is presented. The system consists of double-effect absorption system, horizontal N-S parabolic trough collector, storage tank,...
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... In this work, energy and exergy analyses were used to perform the thermodynamic performance of the system. The operating parameters were: evaporator temperature T evap , condenser temperature T cond , absorber temperature T abs , HPG temperature T HPG , effectiveness of HEX1 and HEX2 (ε HEX1 ,ε HEX2 ), pump efficiency (h pump ), and refrigeration load (Q load ) [12]. The objective of this modeling is to get the COP, exergetic efficiency, and the thermal load of each component in the system, so the procedure is as the following: find the enthalpy and the mass flow rate at all points in the cycle, and then verify the energy balance for the LPG. ...
The solar cooling technology is a promising alternative to the conventional electrical driven air conditioners, and one of the optimum systems is solar double-effect absorption system. The main objective of this research is to predict, analyze and optimize the performance of the double-effect absorption system. Also it is required to predict the coefficient of performance (COP) and exergetic efficiency (ηex) of the system, and to formulate them in equations as functions of the operating parameters of the cycle. A computer program has been developed by EES (Engineering Equation Solver) software to describe the mathematical model of the used absorption system to carry out the energy and exergy analyses, which were used to analyze the thermodynamic performance of the system. By studying the energetic and exergetic performance of the double-effect absorption cycle for evaporator temperature range of 2–10 °C, absorber and condenser temperature range of 28–45 °C, and HPG temperature range of 100–200 °C, two equations, which are functions of the operating temperatures, have been developed to predict the performance of the cycle.
