Small-Sized Parabolic Trough Collector System for Solar Dehumidification Application: Design, Development, and Potential Assessment

Table 1

Parameters for parabolic trough collector and desiccant wheel.

Parameter	Value
Aperture length (m)	2.1
Aperture width (m)	1.067
Focal distance (m)	0.211
Aperture area (m^2)	2.077
Concentration ratio	9.93
Rim angle (^o)	108
Reflector sheet thickness (m)	0.0005
Reflectance of surface	0.89
Transmittance of glass	0.90
Length of receiver (m)	2.0
Absorptance of the receiver	>93%
Outer glass tube diameter (m)	0.123
Outer glass tube thickness (m)	0.002
Inner tube diameter (m)	0.003
Inner tube thickness (m)	0.0013
Conductivity of tube (W/m K)	380
Emittance of tube	<7%
Desiccant wheel
Regeneration rage of desiccant wheel	60–120°C
Rotation speed	20 RPH
Effectiveness	55% at 80°C
Diameter of the wheel	350 mm
Wheel length	200 mm
Design capacity	800 kg/hr