h_pro cp_pro*(T-Tref)+href_pro Enthalphy (J/mol) h_w cp_w*(T-Tref)+href_w Enthalphy (J/mol) h_proh cp_proh*(T-Tref)+href_proh Enthalphy (J/mol) h_meoh cp_meoh*(T-Tref)+href_meoh Enthalphy (J/mol) hf_pro cp_pro*(Tf-Tref)+href_pro Feed stream enthalphy (J/mol) hf_w cp_w*(Tf-Tref)+href_w Feed stream enthalphy (J/mol) hf_meoh cp_meoh*(Tf-Tref)+href_meoh Feed stream enthalphy (J/mol) Q_xch Fx*cp_x*(Tx-T)*(1-exp(-UA/(Fx*cp_x))) Heat exchange (J/s)