Table 2 The conversion from Wa or Qa to a common platform of QSPE.

From: A thermodynamic platform for evaluating the energy efficiency of combined power generation and desalination plants

CCGT power plant with MED for desalination

Actual work or heat input (MW)

Standard primary energy at common energy platform (MW)

Specific energy consumption as reported in literature25,54

Specific standard primary consumption at the common energy platform, computed with an average value. (QSPE/m3)

Gas and steam turbines (electricity, MW)

Wa = 1094.37

(electricity)

QSPE = 1896.30

SWRO

3.5 to 5.5 kWhelec/m3

QSPE = 4.5(1.733)

= 7.80 kWhSPE/m3

CFelec = 1896.30/1094.37

= 1.733

MED

0.125

MED

40 to 80 kWhth/m3

and

0.8 to 1.2 kWhelec/m3

QSPE = 60(0.125) + 1.0(1.733)

 = 9.23 kWhSPE/m3

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