Table 3 Thermodynamic parameters of studied pads13.

From: Improving the sustainability and effectiveness of photovoltaic evaporative cooling greenhouse in the Sahel

Parameters

Cooling pads

Hyphaene fibers

Celdek

Minimum temperature from the coolers, Tout min (°C)

20.00

20.50

Average temperature from the coolers, Tout (°C)

21.83

20.92

Average wet bulb temperature, Twb (°C)

17.83

17.42

Average relative humidity of wind from coolers, RHout (%)

33.33%

50.00%

Moist air velocity from coolers, v2 (m/s)

0.83

1.17

Average saturation efficiency, eff (%)

77.57

79.60

Average mass flow rate, ma (kg/s)

0.012

0.012

Average cooling capacity, q (kJ/s)

0.17

0.17

Average heat transfer coefficient, hH (kW/m2 cC)

4.70

4.52

Average Mass transfer coefficient, hM (kg/s)

0.88

1.40

Average Coefficient Of Performance, COP

9.04

6.56

Cost to Efficiency Ratio, CER

5.25

20.73