Year-Round Experimental Analysis of the Productivity of Vapour-Based Multistage Solar Still: A Developmental Study

Table 1

Error data for instruments used.

Instrument name	Make/model	Range	Accuracy	Error (%)
(1) 12 channels temp, data logger	BTM-4208SD	−50 to 999.9°C		1.5
(2) Thermocouples
(2.1) Surface probes	Type K	−100 to 250°C	0.1°C	0.5
(2.2) Immersion probes	SJ-100/K505B3	−190°C to 260°C	0.1°C	0.5
(3) Wireless weather station
(3.1) Wind speed	HP2000	0 to 50 m/s	1 m/s (speeds <5 m/s); 10% (speeds >5 m/s)	4.3
(3.2) Ambient air temperature sensor		−30 to 65°C	1°C	2.1
(3.3) Solar radiation		0 to 3157 W/m^2	15%	3
(4) Graduated cylinder	Simax	0 to 1000 ml	10 ml	10