This study aims to design an absorption refrigeration system and estimate the heat energy demand. Moreover, this paper investigates the opportunity of using alteration of energy resources such as solar energy. The trough parabolic solar collectors TPC system is suggested and analyzed as a heat energy resource. Actual data of TPC are presented in this work to evaluate the size needed to guarantee enough heat sources that is running the refrigeration system. The outcome of this calculation proved that each 1[Formula: see text]T.R needs about 11.1[Formula: see text]kW of heat energy. The COP of the refrigeration system is found to be about 0.313. Moreover, the TPC generates about 100[Formula: see text]W/m2. However, the optimum TPC may generate about 380[Formula: see text]W/m2 in Iraqi climate. This value of heat generated represents the maximum energy at clear sky. The calculations are validated based on experimental and proven data.
The behaviour of a premixed propane flame in three dimensions was studied numerically and experimentally in a jet flow combustor at different equivalence ratio, Reynolds numbers and turbulent intensity. The detailed attract here has come up with data of propane -air mixtures flame propagation over a range of equivalence ratios (e) between 0.6 lean flame to 1.3 rich flame on environmental conditions of temperature and atmospheric pressure. The instantaneous flame was visualized using a high-speed camera on the domain of the burner of 100 mm diameter. From 174 to 472 images were recorded for each experimental test. Flame surface density was obtained from the instantaneous image of the flame. The influence of the flame area density in the evaluation of the flame propagation will be discussed. The study shows that the increase in turbulent intensity leads to increase the turbulent flame propagation speed subsequently increase in flame area density at a constant an equivalence ratio value. Also, it was shown that the wrinkling flame shape is the dominant characteristic leading to the increased turbulence intensity. The research results are expected to be used for developing jet flow combustor burners.
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