Energy and Economic Analysis of Curved, Straight, and Spiral Flow Flat-Plate Solar Water Collector

Table 1

Instrument specifications.

Instrument	Range	Accuracy	Uncertainty (%)
Solar radiation meter (PYRA 300 V2)	0–1800 W/m^2	±1	0.57
Temperature indicator (RTD Pt100Ω class A)	0–100°C	±0.3°C	0.017
Thermocouple wire (K-type)	0–220°C	±0.1°C	0.057
Measuring jar	0–1000 mL	±1 mL	0.57