where Eq. (2) is for ORCs with heat sources with an inlet temperature
of 80e180 C, and Eq. (3) predicts the maximum performance
of simple ORCs within the same temperature range. Temperatures
are given in degrees Celsius and the efficiencies in percent. Subscripts
th and max are short for thermal and maximum, respectively.
Equations (4) and (5) yield predictions for heat sources from
180 to 360 C for ORCs and simple ORCs, respectively.
In order to obtain reasonable accuracy, the number of parameters
in the low temperature models is limited to the three shown in
Eqs. (2) and (3). It should thus be noted that the low temperature
cases are only valid for a condensing temperature of 25 C and a
DTpp of 5 C. However, the high temperature models can maintain
better prediction accuracies; hence, the models include the
condensing temperature and DTpp parameters as well.
where Eq. (2) is for ORCs with heat sources with an inlet temperatureof 80e180 C, and Eq. (3) predicts the maximum performanceof simple ORCs within the same temperature range. Temperaturesare given in degrees Celsius and the efficiencies in percent. Subscriptsth and max are short for thermal and maximum, respectively.Equations (4) and (5) yield predictions for heat sources from180 to 360 C for ORCs and simple ORCs, respectively.In order to obtain reasonable accuracy, the number of parametersin the low temperature models is limited to the three shown inEqs. (2) and (3). It should thus be noted that the low temperaturecases are only valid for a condensing temperature of 25 C and aDTpp of 5 C. However, the high temperature models can maintainbetter prediction accuracies; hence, the models include thecondensing temperature and DTpp parameters as well.
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