P R E S E N T E D B Y : -
A N S H U L S H R I V A S T A V A
M . T E C H ( P O W E R D I S T R I B U T I O N W I T H
S P E C I A L I Z A T I O N I N S M A R T G R I D )
U N I V E R S I T Y O F P E T R O L E U M & E N E R G Y
S T U D I E S , D E H R A D U N
A pyranometer is a typeof “actinometer” used to
measure broadband solar “irradianceon” a planar
surface and is a sensor that is designed to measure
the solar radiation flux density (W/m2) from a field
of view of 180 degrees.
Also called “Directional Response” or “Cosine
A thermopile sensor with a black coating. This
sensor absorbs all solar radiation, has a flat
spectrum covering the 300 to 50,000 nanometer
range, and has a near-perfect cosine response.
A glass dome. This dome limits the spectral
response from 300 to 2,800 nanometers, while
preserving the 180 degrees field of view. Another
function of the dome is that it shields the
thermopile sensor from convection.
The black coating on the thermopile sensor
absorbs the solar radiation. This radiation is
converted to heat. The heat flows through
the sensor to the Pyranometer housing. The
thermopile sensor generates a voltage
output signal that is proportional to the
Solar energy studies
A Pyrheliometer is an instrument for
measurement of direct beam solar irradiance.
Sunlight enters the instrument through a window
and is directed on a thermopile which converts
heat to an electrical signal that can be recorded.
The signal voltage is converted via a formula
to measure watts per square meter.
It is used with a solar tracking system to
keep the instrument aimed at the sun.
Material testing research
Assessment of the efficiency of solar
collectors and photovoltaic devices.
Pyranometer is a dome like structure that measures
diffused sun energy while Pyrheliometer is an
instrument that measures direct sun’s energy.
Both are often used in conjunction in meteorological
Pyrheliometer helps in assessing the efficiency of