Design and implementation of V-trough tube solar collector to improvement the performance by using hybrid nanofluids

Abstract EN

This article includes the design and improvement of the performance of V trough tube collector in solar heating systems by using hybrid nanofluids, when hybrid metal (Cu (20nm) +Al (20nm) +DW), hybrid metal oxide (CuO (50nm) +Al2O3 (50nm) +DW) and distilled water are taken as the working fluids.

The effects of metal and metal oxides hybrid nanoparticles are taken into consideration on solar hybrid nanofluid heating system.

In experiments two types of hybrid nanoparticles are used with volume flow rate (20 and 40 lit/hr) and four hybrid nanoparticles concentration ratios (i.e.

1, 2, 3 and 5 % vol).

The distilled water used as base fluid.

The working fluid with the higher thermal conductivity in V – trough tube solar collector could improve heat transfer compared with that of distilled water.

The hybrid nanofluids (Cu (20nm) +Al (20nm) +DW) at 5 % vol and volume flow rate (20, and 40 lit/hr) indicated significant effects through the thermal solar characteristics values of FR(τα), – F RUL were 0.524, – 7.

276 W/m2.

K, 0.551 and – 7.423 W/m2.k, while the hybrid nanofluids (CuO (50nm) +Al2O3 (50nm) +DW) were 0.473, – 6.183 W/m2.

K, 0.492 and – 6.224 W/m2.

K.

The synergistic between nanoparticles and type of hybrid nanofluid are a key factor for heat transfer improvement, and improve performance of (V) trough tube solar collector.

Use of hybrid nanofluids (Cu (20nm) +Al (20nm) +DW) and (CuO (50nm) +Al2O3 (50nm) +DW) as a working fluid could improve thermal performance due to high thermal conductivity for copper and aluminum.

At high inlet temperature, this kind (V trough tube) of solar furnace could improve the thermal performance by hybrid nanofluids compared with distilled water.