The document is a letter from an energy company promoting heat pump technology. It summarizes several case studies of heat pumps being used in commercial and industrial settings to replace fossil fuels. The case studies show heat pumps being used for applications like pre-heating in manufacturing, hotel hot water, engine pre-heating, and more. The letter highlights the energy savings, cost savings, and emission reductions achieved through installing heat pumps. It aims to convince industry colleagues of the benefits of adopting heat pump technology to decarbonize their operations and reduce energy costs.

3. Dear Industry Colleague,
The Climate is Changing.
Yes, we are talking about global climate change. But not just that, the technology adoption climate is also
changing. As the fossil fuel costs and the resultant pollution keep increasing, there is an increasing need for
the users of these fuels, mainly industries, to adapt newer, more efficient and less polluting technologies to
meet their energy demand. And we are proud to be doing our part in mainstreaming a technology that meets
all the above requirement – more efficient, less polluting and saving costs.
We are happy to share that many of firms in the Commercial & Industrial sectors today have been
decarbonizing their heating demand, thanks to the adoption of Heat Pumps. And we are proud to have
facilitated the decarbonization of Heat through our ThermaGenX Heat Pumps.
In this case study booklet, we present to you some of the success stories of Heat Pumps in the Commercial
and Industrial sector. The sheer versatility of Heat Pumps can be observed from the fact that the Heat Pumps
are
• Used in Manufacturing companies and in Hotels
• To replace different types of energy sources – Diesel, Super Kerosene Oil, LPG, Natural Gas and Electricity
• Different climatic conditions – the hot, humid to the dry and cool regions.
• To serve different applications like preheating for a Paint Shop, for generating hot water for bathing
applications in Hotels and to keep the Diesel Gensets warm.
We hope that you find the case study booklet useful. If you have any questions and feedback, do contact us.
Happy reading!!
Aspiration Energy
info@aspirationenergy.com

4. Contents
I. Industrial Hot Water Application
• Combined Heating and Cooling using Heat Pumps
• Marrying Innovative Financing and Heat Pumps
• Heat Pumps – More Efficient use of Electricity
• Diesel Engine Generator Head Preheating
II. Commercial Application
• Heat Pumps in Hotel – No more Diesel
• Heat Pumps in Hotel – Safer and More Economical

5. Application – Pre-Treatment Customer – A 3 Wheeler Manufacturer
Fuel Replaced – LPG Sector – Automotive
Background
Painting is one of the most important processes in an
automotive manufacturing plant. All the components that
require painting are pre-treated by passing them through
high temperature liquid tanks before the painting process
begins. At our customer's manufacturing plant, the pre-
treatment tanks were maintained at a temperature of
about 55°C and the required heat was generated by LPG
Boilers. The annual fuel cost (LPG cost) was quite
significant, and the customer was exploring ways to
reduce energy costs.
Solution
After conducting a thermal energy audit, Aspiration
Energy proposed to install a 260kW capacity water
source Heat Pumps (65kW(th)* 4no.s), which would be
connected to the existing pretreatment process tanks of
combined volume of 1,58,500 Litres and the Chiller of 40
tonnes of refrigeration capacity was completely turned off
saving 600 - 800 kWh of electricity per day.
Installation picture
Combined Heating and Cooling using Heat Pumps
Installation
Design:
The existing LPG boiler and chiller was replaced by 260
kW (65kW(th)* 4no.s) Heat Pumps.
Integration:
Two integrations were done - one was a centralized
integration for both heating and cooling requirement, and
the second one was a parallel connection of Heat Pump
for proper load handling.
The cooling side was utilized using an Air Handling Unit.
The total project including the Design, Procurement,
Installation & Commissioning was completed in record
time and the Heat Pump started delivering energy savings
better than the projected savings.
Technical
• Heating was used in existing
process.
• The byproduct cooling from
the Heat Pump was
also utilized effectively.
Financial
• More than 50% energy
savings.
• Payback period of less
than 1 year.
Environmental
• The Heat Pump system
reduces CO2 emission by
about 3,43,000 kgs of
CO2/year.
•
Performance Comparison
Annual savings of Rs. 82,00,000 is achieved by eliminating both Boiler and Chiller unit consumption.
Benefits

6. Application – Pre-Treatment for plating Application Customer – Auto Component Manufacturer
Fuel Replaced – Super Kerosene Oil (SKO) Sector – Automotive
Installation
Design:
107kW water source heat pumps system was proposed
to be installed to meet the process heat requirement.
The system was designed to recover heat from the
process return line.
Integration:
The heating solution was provided to an application of
pretreatment line - plating (8-tank) that required
temperatures ranging from 60°C to 80°C. Each tank
needs to be maintained at different temperatures with
different volumes.
The installed water source heat pump delivers heat to
the plating line tanks and cooling load to the process
return line by assisting the cooling tower operation. The
installed system also has electric hot water generator for
startup and backup heating.
Background
A leading auto components manufacturer is a pioneer in
environmental sustainability in India and is a winner of
several awards on efficient usage of energy. The customer
wanted to reduce fossil fuel consumption used in its pre-
treatment plant and interested in replacing boiler with
heat pump. However, due to budgetary constraints, the
customer did not want to invest upfront and was exploring
innovative financing models.
Solution
On the technical side, after the thermal energy audit,
Aspiration Energy proposed installation of 107 kW Heat
Pumps. On the financing side, Aspiration Energy proposed
to undertake the project under an ESCO model, wherein
Aspiration Energy would own and operate the system, and
the client would pay to Aspiration Energy based on the
energy saved by the Heat Pumps.
Marrying Innovative Financing and Heat Pumps
Technical
• Centralized Hot Water
Generation with Standby
and Backup System.
• Cold Water from source
side is utilized to reduce the
cooling tower operation.
Financial
• Unique financial model
offered (ESCO) with no
investments from the
client side.
Environmental
• The Heat Pump system
reduces CO2 emission
by about 3,24,000 kgs of
CO2/year.
Installation picture Performance Comparison
Benefits
Annual savings of Rs. 58,82,000 is achieved by replacing the Thermic fluid Boiler.

7. Application – Washing Machine Customer – 2 Wheeler Manufacturer
Fuel Replaced – Electricity Sector – Automotive
Heat Pumps - More Efficient use of Electricity
Background
In automobile manufacturing, millions of components are
forged, machined, assembled and tested every day to
remove the greasy oil, burrs and other impurities stuck on
the surface of the components with water-based oil
solution. For effective cleaning and surface finish of
components, these solutions are heated and maintained at
50-60°C
Solution
After the site assessment, we grind out to develop a cost-
effective solution to integrate 3 washing machine tanks.
Because of our technical expertise and history of similar
installation, we engineered a hybrid heating solution that
uses both the heat pump and the electric heater to meet the
client without any downtime.
The control of the electric heater was designed in such a way
that the electric heater will turn on only if the heat pump is
under maintenance.
Installation
Design:
The centralized 28kW Air Source Heat Pump system was
designed to cater the heat requirement of 3 washing
machines.
Integration:
Based on the data acquisition, the system has the potential
to reduce 50% of their energy bill. We offered to supply our
heat pump system with a temporary piping skid for 2
months to see the benefits for themselves.
After the end of this trial, the client was highly satisfied with
the performance of our heat pump solution and the
performance report convinced the client to replace their
electric heaters in 3 of their washing machines with our
centralized heat pump solution.
The heat pump system was successfully integrated with 3-
component washing machine and started delivering heat to
3 tanks as per their requirement.
Technical
• The hybrid system made
toggling between Heat Pump
and Electric Heater easy.
• The Heating system is
centralized.
Financial
• More than 40% energy
savings compared to the
baseline.
Environmental
• The Heat Pump system
reduces CO2 emission
by about 32,000 kgs of
CO2/year.
Installation picture Performance Comparison
Benefits
Heat Pump is saving around Rs.20,00,000 per year on running about 16 hours / day.

8. Application – Diesel Engine Generator Head Heating Customer – Auto parts Manufacturer
Fuel Replaced – Electricity Sector – Automotive
DG Preheating using Heat Pumps
Background
Our customer is an auto parts manufacturing company.
Diesel Generator is used as a backup power source during
the time of power failures. For smoother starting of
industrial generators, it is provided with water jackets over
the engine cylinder for a quick start in cold weather as well
as reducing the diesel consumption at the startup. To reduce
the startup time of the Diesel generator the engine head
must be maintained at a constant temperature with the help
of forced circulation electrical heating system.
Solution
Aspiration Energy took the challenge and designed an
energy efficient heat pump system for the DG Preheating
requirement. The heat pump was designed to operate 24X7
and will be cut-off when Diesel Generators are ON.
Aspiration Energy optimized this heating requirement with
consumption data analysis and detailed designing.
Aspiration Energy proposed a 38kW air source heat pump to
replace the electric heaters.
Installation
Design:
A 38kW Air Source Heat Pump was designed based on the
data given by the customer to meet their required capacity.
Integration:
Aspiration Energy installed the heat pump system on par
with norms and standards of the customer. In this
integration, the process line was installed in series with
plate heat exchanger. The process lines are provided with
solenoid valves to bypass the flow when the set
temperature is attained.
The heat pump system was installed in indirect integration
since the jacket water is not chemically compatible with the
condenser material of construction.
The existing electric heater is set to be idle and only used if
the heat pump requires maintenance.
Technical
• The Heating system is
centralized & hybrid.
• Easy to toggle and operate.
• Installation done in few
weeks.
Financial
• More than 50% energy
savings compared to the
baseline.
Environmental
• The Heat Pump system
reduces CO2 emission
by about 58,080 kgs of
CO2/year.
•
Installation picture Performance Comparison
Benefits
Heat Pump will save around Rs.4,70,000 annually.

9. Application - Hot Water for Bathing Customer- A 5 Star Hotel, Chennai
Fuel Replaced – Diesel Sector – Hospitality
Heat Pumps in Hotel - No More Diesel
Background
Our Customer, a 125+ Rooms 5-Star Hotel, was
experiencing a decline in its profits due to the increasing
fuel costs. The Hot Water requirement of the hotel
was 16,000 Litres per day at 65 Deg C to cater to the
bathing needs of its guests. Two boilers were consuming
64 Litres of Diesel per day. The cost of Diesel had increased
by almost 40% during the past one year.
Apart from the fuel cost, the diesel boilers required
frequent maintenance, leading to significant downtime.
The burning of diesel was also leading to air pollution
within the Hotel premises.
Solution
Aspiration Energy proposed to replace the boilers with
Heat Pumps that could
• Maintain temperature within the band of 60-65°C
• Operate 24 hours in a day, if required
• Be integrated easily with the existing Calorifier
Tank
Installation
Design:
Based on the past fuel consumption data, 2 Nos of 28 kW
heat pumps were designed to meet the customer's
requirement.
Integration:
After doing the sizing study, AEPL team decided to install 2
air-source heat pumps to meet the hot water requirement
of the hotel. The heat pump system was seamlessly
integrated with the existing hot water storage and
distribution system (Calorifiers, Heat Exchangers and Piping)
without disrupting the existing operations.
Since Hotel industry is highly sensitive to customer
satisfaction issues, redundancy was built into the system to
ensure that there was no shortage of hot water in case of
failure of one of the units.
An online thermal energy monitoring system was also
installed to keep track of the health of the system and
address any problems on an almost real-time basis.
Technical
• Lower space for installing a
large capacity compared to
existing heat source.
• Easier to operate and
troubleshoot, compared to a
Diesel Boiler.
Financial
• Direct savings of up to Rs.
14,65,000 per year devoid of
operation costs. Indirect
savings include maintenance
of boiler, manpower etc.
Environmental
• The Heat Pump system
reduces CO2 emission
by about 57,420 kgs of
CO2/year.
Installation picture Performance Comparison
Benefits
Heat Pump is saving around Rs.14,00,000 annually.

10. Application - Hot Water for Bathing Customer- A 4 Star Hotel, Chennai
Fuel Replaced – Liquified Petroleum Gas (LPG) Sector – Hospitality
Performance ComparisonInstallation picture
Heat Pumps in the Hotel - Safer and More Economical
Installation
Design:
Based on fuel consumption data, 1 Nos of 28 kW Heat
Pump was designed to meet customer's requirement.
Integration:
The Heat Pump was installed at the top floor of the Hotel,
which made the integration more difficult. The Heat Pump
was integrated with the existing hot water supply system
seamlessly.
The integration was completed in 3 days’ time. Since the
water quality was good, there was no need for additional
Heat Exchangers and Circulation pumps. This type of
integration, also known as direct integration, further
reduced cost of the system.
An online thermal energy monitoring system was also
installed to keep track of the health of the system and
address any problems on an almost real-time basis.
Technical
• Safer and Easier to Operate.
• Easy to Monitor and
Control.
Financial
• More than 70% energy
savings compared to the
baseline.
Environmental
• The Heat Pump system
reduces CO2 emission by
about 17,820 kgs of
CO2/year.
•
Background
The Hotel was consuming about 35-50 kg LPG per day as a
energy source to generate hot water to cater bathing needs
of its guests. The increasing LPG cost was affecting the
bottom-line of the hotel. Moreover, while LPG is a cleaner fuel
compared to Diesel, its usage posed a safety hazard and hence
required lot of safety measures.
Under these circumstances, the hotel management
contemplated replacement of the boiler with a more energy
efficient and safer product available in the market.
Solution
Considering the client's requirement, Aspiration Energy
proposed a Heat Pump system that
• Supplies heat for 24 hours without any hassle.
• Had Less transition/modification to convert existing
heating system to heat pump system.
• Handle variable temperature control from 40 – 90°C.
• Had an on-site error indication in the system.
Benefits
Heat Pump will save Rs. 5,11,000 annually.

11. Our Clients
Awards and Accolades
7, II Trust Link Road, Mandaveli, Chennai- 600 028
Tamilnadu. Ph – 044 4218 5301
www.aspirationenergy.com | info@aspirationenergy.com