LiBr–H 2O was considered to be a medium in the absorption chiller. The working fluid in both systems was assumed to be R123 because of its thermodynamic and environmental properties. These systems used the waste heat of exhaust gas from a cement plant. Thermodynamic and thermoeconomic analyses of two trigeneration systems were performed through Engineering Equation Solver (EES) software. Η ex, T = W ˙ T 2 E ˙ x f, 8 − E ˙ x f, 9 Η ex, Vap 1 = E ˙ x 1 − E ˙ x 7 E ˙ x 15 − E ˙ x 16Į ˙ x dest, T 2 = E ˙ x f, 8 − E ˙ x f, 9 − W ˙ T 2 Η ex, Pre 1 = E ˙ x 7 − E ˙ x 6 E ˙ x 18 − E ˙ x 19 Η ex, P 1 = E ˙ x f, 5 − E ˙ x f, 4 W ˙ P 1 Η ex, Con 1 = E ˙ x f, 21 − E ˙ x f, 20 E ˙ x f, 3 − E ˙ x f, 4Į ˙ x dest, P 1 = E ˙ x f, 4 − E ˙ x f, 5 + W ˙ P 1 Η ex, Reg 1 = E ˙ x f, 6 − E ˙ x f, 5 E ˙ x f, 2 − E ˙ x f, 3 Q ˙ Reg 1 = m ˙ 2 h 2 − h 3 = m ˙ 5 h 6 − h 5Į ˙ x dest, Reg 1 = E ˙ x f, 2 − E ˙ x f, 3 + E ˙ x f, 5 − E ˙ x f, 6 Η ex, T 1 = W ˙ T 1 E ˙ x f, 1 − E ˙ x f, 2 E ˙ x dest, T 1 = E ˙ x f, 1 − E ˙ x f, 2 − W ˙ T 1
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