In the northwest Himalayas, the most promising fields are Puga-Chumathang
(Ladakh district, J&K), Parbati valley, and Manikaran field in Himachak Pradesh. In
Central India, in the fields, namely, the regions of the Madhya Pradesh area
of Tattapani, there is a plan to set up a 20 MWe binary farm. The huge availability
of alternative energy resources such as coal has evidently hindered the growth of
production of geothermal resources (Kumar et al. 2008).
As well as the aforementioned ongoing projects in India, the National Geophysical Research Institute (NGRI), Hyderabad, has performed magneto-telluric studies
in the Chhatisgarh Tattapani geothermal regions to classify geological surface
features to determine their energy and thermal capacity. Depending on the findings
of these inquiries, the construction of an electricity generation network is planned.
NGRI has carried out similar studies in Puga valley for power generation through
geothermal energy. In the states of Himachal Pradesh, Jammu, and Kashmir, and
parts of Uttarakhand, which experience extreme cold weather for longer periods of
time, the feasibility of heat pumps for space heating inside houses should be studied
(Shah and Dutt 2014).
Major work in India related to application of geothermal energy has been carried
out mainly in Gujarat. According to a GSI report, 17 hot springs were identified in
Gujarat. Integrating the geological studies, geochemical studies, and remote sensing
of all the locations, six locations—Unai, Tulshishyam, Tuwa, Dholera, Chabsar, and
Gandhar—were identified for further investigation. The government of Gujarat
(GoG) has established the Centre of Excellence for Geothermal Energy (CEGE),
which is dedicated to the research and development of geothermal energy in Gujarat.
CEGE has carried out an extensive exploration survey in various parts of Gujarat to
understand the geothermal potential present in these regions. A three-dimensional
(3D) magneto-telluric survey has been conducted for the first time in India for
geothermal prospect identification. CEGE has drilled three shallow wells, of
1000 ft, for exploiting the shallow depth geothermal prospects on the basis of results
obtained from the exploratory survey. The shallow geothermal well drilled by CEGE
produces water at 4–5 l/s at 45
C.
However, this geothermal aquifer is of relatively low enthalpy compared to
influential thermal springs all over the globe. The geothermal space heating and
cooling system based on heat pumps, which is the first of its type in India (Fig. 11.4),
is designed in such a way that it can achieve the desired parameters. The system is
established at Swaminarayan Temple (Fig. 11.5a, b), Dholera. The hot water produced from the wells acts as the driving force for the heat pump-based space heating
and cooling system. During gatherings and other temple activities, the output from
the conditioning side of the plant is used for comfort conditioning to assemble in the
Hall at the temple. The output from the heating part of the device is utilised as heat
input for scaled-up electricity production in the organic Rankine cycle (ORC). As an
additional advantage, the plant provides conditioning of 32 TR capacity for the
temple Sabhamandap.
A geothermal-based heat pump is a system that can use low-enthalpy storage
energy. Geothermal based heating and cooling plant consists of heat exchanger at
254
K. Yadav et al.
(Ladakh district, J&K), Parbati valley, and Manikaran field in Himachak Pradesh. In
Central India, in the fields, namely, the regions of the Madhya Pradesh area
of Tattapani, there is a plan to set up a 20 MWe binary farm. The huge availability
of alternative energy resources such as coal has evidently hindered the growth of
production of geothermal resources (Kumar et al. 2008).
As well as the aforementioned ongoing projects in India, the National Geophysical Research Institute (NGRI), Hyderabad, has performed magneto-telluric studies
in the Chhatisgarh Tattapani geothermal regions to classify geological surface
features to determine their energy and thermal capacity. Depending on the findings
of these inquiries, the construction of an electricity generation network is planned.
NGRI has carried out similar studies in Puga valley for power generation through
geothermal energy. In the states of Himachal Pradesh, Jammu, and Kashmir, and
parts of Uttarakhand, which experience extreme cold weather for longer periods of
time, the feasibility of heat pumps for space heating inside houses should be studied
(Shah and Dutt 2014).
Major work in India related to application of geothermal energy has been carried
out mainly in Gujarat. According to a GSI report, 17 hot springs were identified in
Gujarat. Integrating the geological studies, geochemical studies, and remote sensing
of all the locations, six locations—Unai, Tulshishyam, Tuwa, Dholera, Chabsar, and
Gandhar—were identified for further investigation. The government of Gujarat
(GoG) has established the Centre of Excellence for Geothermal Energy (CEGE),
which is dedicated to the research and development of geothermal energy in Gujarat.
CEGE has carried out an extensive exploration survey in various parts of Gujarat to
understand the geothermal potential present in these regions. A three-dimensional
(3D) magneto-telluric survey has been conducted for the first time in India for
geothermal prospect identification. CEGE has drilled three shallow wells, of
1000 ft, for exploiting the shallow depth geothermal prospects on the basis of results
obtained from the exploratory survey. The shallow geothermal well drilled by CEGE
produces water at 4–5 l/s at 45
C.
However, this geothermal aquifer is of relatively low enthalpy compared to
influential thermal springs all over the globe. The geothermal space heating and
cooling system based on heat pumps, which is the first of its type in India (Fig. 11.4),
is designed in such a way that it can achieve the desired parameters. The system is
established at Swaminarayan Temple (Fig. 11.5a, b), Dholera. The hot water produced from the wells acts as the driving force for the heat pump-based space heating
and cooling system. During gatherings and other temple activities, the output from
the conditioning side of the plant is used for comfort conditioning to assemble in the
Hall at the temple. The output from the heating part of the device is utilised as heat
input for scaled-up electricity production in the organic Rankine cycle (ORC). As an
additional advantage, the plant provides conditioning of 32 TR capacity for the
temple Sabhamandap.
A geothermal-based heat pump is a system that can use low-enthalpy storage
energy. Geothermal based heating and cooling plant consists of heat exchanger at
254
K. Yadav et al.