Abstract
In this paper, the performance of the evacuated tube solar collector is investigated theoretically by the TRNSYS program. The simulation is conducted during the winter of 14th February-2019 in Cairo – Egypt. In this simulation, water and Nanofluids areworking fluids. The types of Nanofluids are CeO2/water, WO3/water and AL2O3/water. The simulation is conducted at0.015%,0.025%, 0.035% and 0.045% (volume concentrations).The mass flux rate and tilt angle are 0.017 kg/s.m2and 45o; respectively.The results show that the collector has the highest performance using nanofluids at studied concentrations. At 12:00 PM, thehighest useful energy gain can be obtained from CeO2/water Nanofluid at 0.045% concentration, while thermal efficiency ishigher by 34.2% than water. The nanofluidWO3/water presents low performance than that of CeO2/water and AL2O3/water. The thermal efficiencies ofAL2O3/ water and WO3/ water Nanofluids are higher than water by 28.4% and 12.5%; respectively, atconcentration of 0.045% and 12:00PM
Highlights
There are many studies available in literature for solar heating and cooling system simulation by means of transient system simulation software (TRNSYS)
The survey focused on the researches related to TRNSYS simulation of solar heating and cooling systems starting with Buonomo et al [1] presented TRNSYS simulation study for solar cooling system for peak energy consuming according to Italy conditions
Assilzadeh et al [12] developed a TRNSYS model for solar driven LiBr – H2O absorption chiller in Malaysia, the results reported that the optimum solar collector area, storage tank volume and collector slope are 35m2, 0.8m3 and 22o; respectively for 3.5 kW of chiller capacity
Summary
There are many studies available in literature for solar heating and cooling system simulation by means of transient system simulation software (TRNSYS). The research concluded that the evacuated tube collector is better than the flat plate collector for both hot and cold climate conditions. Much researchers developed TRNSYS simulation for solar heating and cooling systems but the numerical studies of performance of solar collector using nanofluids are few. Number of collector in series Collector aperture area (Ac) Fluid specific heat Flow rate at test condition Intercept efficiency Negative 1st order efficiency coefficient Negative 2nd order efficiency coefficient Collector slope
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Advances in Scientific Research and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
