000			03483nam a2200277 4500
008			260505b2021 bx d|||| m||| 00| 0 eng d
040			_aUniversiti Teknologi Brueni _beng _cUTB
084			_aUTB 120 REPORT THESIS & DISSERTATION _bRTDS 429
100	1		_aNur Wadhyana Binti Haji Yahya _eauthor.
245	1	0	_aPerformance Analysis Of Solar Water Heating System Using Taguchi Method To Develop Irradiance-based Nusselt Number Correlation With Single-Phase Fluids And Nanofluids / _bNur Wadhyana Binti Haji Yahya.
260			_aBandar Seri Begawan : _bUniversiti Teknologi Brunei , _c©2021 .
300			_axix, 197 pages : _bcharts ; _c30cm.
500			_aThesis submitted for the degree of Doctor In Philosophy Universiti Teknologi Brunei
500			_aABSTRACT High electricity consumption in homes can partially be due to the high daily usage of water heater. Solar water heating system is a good alternative as it consumes less energy than conventional water heater. Its thermal performance, however, can be further improved by incorporating performance enhancement materials in its main components (i.e., heat transfer fluid, solar thermal collector and heat storage). Water, saline water and glycols are generally good heat transfer fluids for thermal systems but still has poor thermal conductivity. Suspending nanoparticles into these single-phase fluids to produce nanofluids can significantly enhance their thermophysical properties and consequently the thermal performance of solar water heating systems. Flat plate solar thermal collector incorporates the use of heat absorber that consisted of selective- and black-coated absorbers. However, there is still a notable lack of research on reflective component enclosed within the collector casing and glass cover, hence was investigated in this thesis. The study also considered rocks being natural solids as performance enhancement material for the storage unit. To experimentally investigate the performance enhancement of these materials, a laboratory model solar water heating system called the Gunt Hamburg E1202 system was used. The novelty of this work is the utilization of Taguchi-Buckingham T hybrid approach to simultaneously investigate the performance of numerous performance enhancement materials and conduct a dimensional analysis to produce a Nusselt number correlation upon identifying the significantly contributing factors. The first experiment with the ET202 system investigated the effect of single-phase fluids (water, 50:50 ethylene glycol-water mixture and 0.6M sodium chloride solution), heat absorbers of different coatings (selective, black and reflective), irradiance, flow rate and coverage on the thermal performance of the ET202 system. The signal-to-noise ratio (S/N) and ANOVA have confirmed the significance of heat transfer fluids, the heat absorber, flow rate and solar radiation on the thermal performance.
502			_aThesis (PHD) - Universiti Teknologi Brunei, 2021
610		4	_zUniversiti Teknologi Brunei _yThesis
610		4	_zUniversiti Teknologi Brunei _yFinal Year Report
650		4	_aSolar water heaters
650		4	_aNanofluids
650		4	_aHeat Transfer
700	1		_aDr. Reddy Prasad _eSupervisor.
942			_2lcc _cRTDS _n0
998			_eReports, Thesis & Dissertation _s850647 : 002482 c.1_UTB _xUniversiti Teknologi Brunei
999			_c24034 _d24034