Heat Pump demo at UCAL Fuel Systems

UCAL Fuel systems had installed a heat pump in its plants as part of Aspiration Energy’s rental demo installation to prove the savings of a heat pump. The duration of the demo was from the 21st of November to the 9th of December.


The demo showcased a 14 kW heat pump for one of its vacuum pump line washing machines. It has since proved a savings of 46 %, convincing UCAL that Heat pumps are the way to move forward in terms of sustainable industrial heating solutions for industrial washing machines.


UCAL Fuel Systems was established in 1985 by Carburetors Ltd. (pioneers in India in the manufacture of Carburetors and mechanical fuel pumps) as a joint venture company with Mikuni Corporation Japan – internationally renowned company for fuel management products and are in the business of providing holistic solutions in fuel management systems and is committed to producing products of consistent quality and timely delivery.

Aspiration Energy and UCAL after a series of studies, agreed to install it for the vacuum pump line washing machine which perfectly fit our portfolio – with a temperature of 70 C and an actual load of around 7 kW.

A brief summary of the demo is given below:


Heaters Units Consumption

Average Energy Consumption in Heaters per hour = 6.34 kW

Daily Units Consumption = 6.34 kW *24 Hours = 152

Units per day  


Heat pump Units Consumption

Average Energy Consumption in Heat Pump      = 3.54 kW

Daily Units Consumption                                        = 3.54 kW * 24 Hours

= 84.96 Units per day


Daily Units Savings per day                                    = 157.9 – 84.6                                                                                                                                                            = 73.3 Units

Total Units to be saved per month                       = 67.04 x 26                                                                                                                                                                = 2,413 Units per month

(For 2 washing machines units = 4,102 )

Total Cost saving per month                                  = Rs.16,894 per month

(Cost Saving = 4,102 x 7 = Rs. 28,714)


Heat Pump Investment cost                                   = 6.5 Lakhs (Provision for 2 Washing machines)

Return On Investment (ROI)                                   = 22.6 Months

Accelerated Depreciation Claim                            = 40 % year on year for Energy Saving equipment

After AD for 3 years ROI                                          = 16.6 months

UCAL and Aspiration Energy now plan on to implement this technology to the rest of the washing machines in Maraimalai Nagar and to other plants thorough out India as well.


Success stories like these are what drives us towards making a greener and cleaner future.


7 Reasons to consider Roof Top Solar Thermal than Solar PV


Solar Energy is most often implied as Solar Photovoltaic Energy with electric energy as the output.Solar thermal energy is not as predominant in the Solar Renewable energy scenario as Solar PV. Let us consider the current scenario around the world.

 The total Solar Thermal Capacity being utilised in the world currently is 465 GigaWatts.

This mostly is accounted by small scale and household utilisation. This, when compared to the solar photovoltaic base capacity installed – around 303 GW – is more than 50 percent higher.




Having said that, the industrial utilisation of Solar Heating systems remains paltry.

100 Million Tonnes of Oil is used in Industries for heating applications of which 15 million tonnes are used for below 250°C applications.

This amounts to around 93 GW Solar Potential for under 250°C and approximately 20GW potential for under 100°C applications  

This is huge in terms of unharnessed solar energy, potentially saving millions of rupees and carbon emissions.

We shall now look into this disparity in terms of pragmatic factors.


The cost of Solar Thermal Solutions is more than 1 to 2 crores cheaper for every MW generated using Solar Power technologies.

Space occupied by a solar heater is  3000 sq. m whereas 1 MW solar PV takes about 10000 sq. m.. Energy produced by solar heaters in a year also is often more than Solar PV.

Why then is  Solar PV still more prevalent?  


The reasons vary from low awareness on the potential Solar heating Technologies to the unappealing nature of  Solar Thermal Systems to Low Media coverage on its success.


With governments focusing on more and more sustainable energy solutions these forms also deserve the same attention, if not better, than the usual renewable energy solutions.


In the following series of blog posts posted every Thursday, we shall look into the 7 factors that make Solar thermal Solutions more feasible than Solar Photovoltaic systems and study the processes of implementing these systems.




Industrial Solar Heating: Evacuated Tube Collectors Vs. Flat Plate Collectors

Solar technology can be used to replace fossil fuels for Industrial process heating especially in sectors that use low- & medium-temperature (less than 120 oC) heat for processes such as washing, leaching (mining industry), drying, pre-heating of boiler feed water, pasteurization, cooking and so on. Flat plate Collectors and Evacuated Tube collectors are proven technologies in solar water heating in the domestic segment. Aspiration Energy, a leader in providing industrial solar thermal solutions has researched on both these technologies & evaluated their performance for industry scale utilization.

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