Tech Briefs Magazine - October 2021 - 38a

DESIGN OPTIMIZATION
Raychem RPG, India
DESIGNINGDESIGNING SMART SMART
SOLUTIONS SOLUTIONS FOR GAS
FLO FLOW DEVICES WITH
FOR GAS
DEVICES WITH
MUL MULTIPHYSICS SIMULATION
TIPHYSICS SIMULATION
As India moves toward a reduced dependence on fossil fuels, more urban homes are
expected to be supplied with piped natural gas instead of fuels like coal or wood,
which emit more greenhouse gases. To optimize various designs for domestic gas
meters, researchers at Raychem RPG turned to multiphysics simulation.
by ADITI KARANDIKAR
During the 20th
century, the energy landscape in India was
dominated by fossil fuels, with diesel, petroleum, and kerosene
used for most industrial and domestic purposes. In rural India,
a large part of the population was still using coal, wood, or
dung fires for cooking. However, the last few decades have
seen the country strive to become a more gas-based economy,
with widespread use of
liquefied petroleum gas (LPG)
and compressed natural gas
(CNG) for cooking and even
transportation. Recently,
piped natural gas has also
been made available to many
urban households, providing
the comfort of uninterrupted
cooking gas directly to
consumer homes. This new
development calls for the gas
utility providers to measure
how much gas is being
consumed. How? With the
help of gas meters.
FIGURE 1       
38a COMSOL NEWS
Intro
Cov
ToCToC
+
-
A
➭
» THE PRINCIPLES
BEHIND GAS METERS
A gas meter (Figure 1) is a
specialized flowmeter used in
residential, commercial, and
industrial buildings to measure
the amount of fuel gases,
such as CNG or LPG, delivered
through a pipeline. Gases are
highly compressible, which
makes them more difficult to
measure than liquids because
of their sensitivity to changes
in temperature and pressure.
Gas meters measure a defined
volume, regardless of the
pressurized quantity or quality
of the gas flowing through
the meter. Accordingly,
adjustments need to be made
in temperature, pressure, and
heating values to accurately
measure the actual amount of
gas moving through the meter.
Several different designs
of gas meters are common,
depending on the volumetric
flow rate of gas to be
measured, the range of flows
anticipated, the type of
gas being measured, and
➮

http://info.hotims.com/79418-936

Tech Briefs Magazine - October 2021

Table of Contents for the Digital Edition of Tech Briefs Magazine - October 2021

Tech Briefs Magazine - October 2021 - Intro
Tech Briefs Magazine - October 2021 - Sponsor
Tech Briefs Magazine - October 2021 - Cov1
Tech Briefs Magazine - October 2021 - Cov2
Tech Briefs Magazine - October 2021 - 1
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Tech Briefs Magazine - October 2021 - Cov3
Tech Briefs Magazine - October 2021 - Cov4
Tech Briefs Magazine - October 2021 - CN-Cov1
Tech Briefs Magazine - October 2021 - 2a
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Tech Briefs Magazine - October 2021 - 38a
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Tech Briefs Magazine - October 2021 - MD-Cov1
Tech Briefs Magazine - October 2021 - MD-Cov2
Tech Briefs Magazine - October 2021 - MD-1
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Tech Briefs Magazine - October 2021 - MD-8A
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Tech Briefs Magazine - October 2021 - MD-Cov3
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Tech Briefs Magazine - October 2021 - ST-Cov1
Tech Briefs Magazine - October 2021 - ST-Cov2
Tech Briefs Magazine - October 2021 - ST-1
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Tech Briefs Magazine - October 2021 - ST-Cov3
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