Thesis of Master of Engineering Steven.pdf


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LIST OF FIGURES
Figure 0.1: Administrative chart of Glob – Eng Company ...................................................... xii
Figure 0.2: Location of Glob – Eng Company ......................................................................... xx
Figure I.1: Flow diagram for a typical solar thermal power plant [4] ........................................ 1
Figure I.2: Schematic diagrams of the four type of the reflectors [4] ........................................ 2
Figure I.3: Illustration of linear concentrator system power generation [5] .............................. 3
Figure I.4: Solar desalination system [6] ................................................................................... 4
Figure I.5: Basic principle of the absorption air conditioning system [8].................................. 4
Figure I.6: Solar hot water heater system diagram [10] ............................................................. 5
Figure 1.1: A typical receiver tube of a PTSC [5, 19].............................................................. 10
Figure 1.2: The pylon in the foundation [4] ............................................................................. 11
Figure 2.1: a) and b) - Section of a linear parabolic concentrator showing major dimensions
[25] ........................................................................................................................................... 14
Figure 2.2: Motion of the earth around the sun [8] .................................................................. 15
Figure 2.3: Variation in declination due to earth’s orbit .......................................................... 16
Figure 2.4: Solar altitude, solar azimuth and zenith angles [31] .............................................. 17
Figure 2.5: Incident radiation on an inclined surface [32] ....................................................... 18
Figure 2.6: Heat transfer model in a cross section of the HCE ................................................ 22
Figure 2.7: Flowchart of solution methodology ....................................................................... 31
Figure 3.1: A typical parabolic trough solar collector ............................................................. 33
Figure 3.2: PTSC Torque – Tube ............................................................................................. 34
Figure 3.3: PTSC view pattern ................................................................................................. 35
Figure 3.4: Details view of drive and instrumentation section ................................................ 35
Figure 3.5: Theoretical and measured of direct, diffuse and global solar radiation for 25 /08/
2014 .......................................................................................................................................... 36
Figure 3.6: a.) and b.) - Time variation of optical efficiency for two typical days for various
tracking mode ........................................................................................................................... 38
Figure 3.7: the daily mean of the optical efficiency of one year considering two tracking
modes ....................................................................................................................................... 38
Figure 3.8: a.) and b.) Direct solar radiation for different tracking systems on a two typical
days. .......................................................................................................................................... 40
Figure 3.9: Outlet Temperature variation of the absorber tube for PTSC with air, water and oil
(21/03/2016) ............................................................................................................................. 42
Figure 3.10: Outlet Temperature variation of the absorber tube for PTSC with air, water and
oil (21/08/2016) ........................................................................................................................ 42
Figure 3.11: Temperature distribution of the fluid along absorber at solar noon .................... 43
Figure 3.12: Outlet fluid temperature in a typical day of the rainy season .............................. 44
Figure 3.13: Outlet fluid temperature in a typical day of the dry season ................................. 44
Figure 3.14: Time variation of useful heat ............................................................................... 45
Figure 3.15: Time variation of the heat loss ............................................................................. 46
Figure A 3: An LS-2 type collector module at Sandia National Laboratory [43]………….....55

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