Page 93 - GRIHA Manual Volume III - Introduction to National Rating System
P. 93
86 GRIHA Manual: Volume 3
Following is a step-by-step procedure that should be adopted for installation of a wind turbine.
1. Wind resource assessment of the site: This is the first and most important exercise that should
be conducted to verify the feasibility of installing wind turbines at a specific site. It consists
of information on the possible energy extraction at the location that depends on the
wind power density (WPD) of the site. WPD is the measure of the wind power potential of
the site. It is estimated based on wind resource characteristics, that is, wind speed, wind-
flow direction, air density, and so on. Hence, the available wind resource data, which is
the average wind speed and other weather parameters available from satellite (NASA or
meteonorm data), should be studied. Analysis of this data will verify whether installation of
a wind turbine on that specific site is feasible or not.
2. Site assessment: A preliminary assessment would then be made for the site to review the
nature of terrain, vegetation cover, accessibility, and other factors.
3. Wind monitoring: After preliminary site assessment, if required, wind monitoring stations
should be set up on the site to collect higher resolution wind speed data at multiple levels.
Wind masts with multiple-level instrumentation should be installed at the site to measure
wind speed and direction at different levels. Wind data should be collected for a minimum
of one year. The data collection may continue for two or more years to validate the data
collected in the first year and to determine the inter-annual variability of wind resource at a
station.
4. Data analysis: Wind data collected should be analysed and charts prepared depicting
hourly, monthly, and annual mean wind speeds, distribution of wind direction, wind shear
components, and average annual wind power density, with other important parameters.
This helps in mapping the wind resource potential of the site.
5. Potential: Electricity generation potential would be estimated based on the wind power
density of the site, land availability, and other parameters that would be collected from
micro-survey of the sites.
6. Turbine selection: Based on resources assessment study and power requirement of the
building, selection of the type of turbines to be installed should be made.
Biomass gasiier
Biomass gasification is a renewable energy technology that effectively utilizes locally available bio-
resources like agricultural residue and forest residue and converts them into clean gas. This gas can
be used for the following purposes.
# Generating electricity through biomass-fuelled gas turbine plants
# Substitute for furnace oil in direct heat applications
# Methanol production
Biomass gasification is a chemical process that occurs at temperatures ranging from a few hundred to
o
about 100 C. The basic process involves interaction of steam and oxygen with solid fuel. This partial
oxidation converts solid biomass fuel into producer gas (mixture of combustible gases consisting
mainly of carbon monoxide and hydrogen with some traces of methane and carbon dioxide). The
process of producing gaseous fuel from solid fuel offers easy handling and better control over
Following is a step-by-step procedure that should be adopted for installation of a wind turbine.
1. Wind resource assessment of the site: This is the first and most important exercise that should
be conducted to verify the feasibility of installing wind turbines at a specific site. It consists
of information on the possible energy extraction at the location that depends on the
wind power density (WPD) of the site. WPD is the measure of the wind power potential of
the site. It is estimated based on wind resource characteristics, that is, wind speed, wind-
flow direction, air density, and so on. Hence, the available wind resource data, which is
the average wind speed and other weather parameters available from satellite (NASA or
meteonorm data), should be studied. Analysis of this data will verify whether installation of
a wind turbine on that specific site is feasible or not.
2. Site assessment: A preliminary assessment would then be made for the site to review the
nature of terrain, vegetation cover, accessibility, and other factors.
3. Wind monitoring: After preliminary site assessment, if required, wind monitoring stations
should be set up on the site to collect higher resolution wind speed data at multiple levels.
Wind masts with multiple-level instrumentation should be installed at the site to measure
wind speed and direction at different levels. Wind data should be collected for a minimum
of one year. The data collection may continue for two or more years to validate the data
collected in the first year and to determine the inter-annual variability of wind resource at a
station.
4. Data analysis: Wind data collected should be analysed and charts prepared depicting
hourly, monthly, and annual mean wind speeds, distribution of wind direction, wind shear
components, and average annual wind power density, with other important parameters.
This helps in mapping the wind resource potential of the site.
5. Potential: Electricity generation potential would be estimated based on the wind power
density of the site, land availability, and other parameters that would be collected from
micro-survey of the sites.
6. Turbine selection: Based on resources assessment study and power requirement of the
building, selection of the type of turbines to be installed should be made.
Biomass gasiier
Biomass gasification is a renewable energy technology that effectively utilizes locally available bio-
resources like agricultural residue and forest residue and converts them into clean gas. This gas can
be used for the following purposes.
# Generating electricity through biomass-fuelled gas turbine plants
# Substitute for furnace oil in direct heat applications
# Methanol production
Biomass gasification is a chemical process that occurs at temperatures ranging from a few hundred to
o
about 100 C. The basic process involves interaction of steam and oxygen with solid fuel. This partial
oxidation converts solid biomass fuel into producer gas (mixture of combustible gases consisting
mainly of carbon monoxide and hydrogen with some traces of methane and carbon dioxide). The
process of producing gaseous fuel from solid fuel offers easy handling and better control over
