06
May 12

TORO Cooling Systems introduces a game changer to Transform HVAC Industry

 

Toro Hybrid packaged AC , the new  Air Conditioning unit is promising to revolutionize the HVAC industry. Because it provides ambient-building connectivity to save 50% annualized operating cost and provide excellent Indoor Air Quality.

Although conventional HVAC systems have had price advantages  over new  TORO hybrid systems due to mass  production, but their list of identified shortcomings is long and has defied resolution for the past many years. For starters, refrigerative air conditioning systems are responsible for ozone depletion and high GHG emissions.

During the last couple of years, new systems like VRF or VRV gained prominence over the conventional air conditioning  because of the  their capability to modulate energy input,depending  on the heat load.  These  ”expensive to own” units  have gained some popularity  in green buildings which can accommodate higher capital costs,their position may soon be usurped by a new technology that has none of their drawbacks.

Compressive refrigeration bases systems  exhibit   substantial de-rating and resultant poor energy efficiency during tropical summer climates. There is no humidity control in summer or winter. Dehumidification during monsoon is  more by default than by design. Other  serious shortcoming is  no provision for fresh air to maintain  acceptable IAQ  in occupied spaces.

TORO Hybrid  Packaged  units  are poised to push conventional HVAC systems into obsolescence. These advanced  HVAC units use  a new strategy  to take full advantage of the favorable ambient conditions  by providing  ”ambient- building connectivity” to  reduce energy  consumption by 30 to 90 % or better.TORO Hybrid Air conditioners integrate a  filter bank ,sensible heat exchangers , belt-less VFD driven plug flow fan  and  a  much smaller size built in chiller using  evaporative condensing  and BMS compatible controls.

Aside from delivering 100% fresh air straight during summer and winter , TORO Hybrid  excels at humidity control  during monsoon by re-circulating large part of the air but still providing adequate  fresh air for  best IAQ thus saving energy and eliminating all sick-building issues.

These energy efficient air conditioners  use  a  proprietory Heat recovery device—En3 Heat Exchanger working  in  ”one- side-wet” recuperative mode to cool outdoor air during hot summer time . This reduces  the outdoor  air heat  load on the downstream  Heat & Mass Exchanger by up to 75-80% or more.

Substantial removal of sensible heat load  by En Cube heat exchanger, enables reduction of the chiller, often by nearly 30% or more.

En Cube  heat exchanger also works well during winter. It allows the use of free cooling and controls the humidity and significantly lowers the energy consumption in many geographic areas.Installations in Low temperature zones, using winter heating also benefit, due to winter heat recovery.

Data centers, industrial control rooms , IT and C buildings having SHF in excess of 0.9  ,are prime candidates for this most energy efficient technology.

TORO Hybrid air conditioners  significantly reduce the  energy use for air conditioning in large  commercial,  institutional and industrial buildings.

Big ticket retail ,performing theaters,multiplexes ,aircraft and helicopter hangers besides public building such as  railway stations, Central bus terminals of  future  will benefit most  from  this  cost effective, energy efficient and eco- friendly product.

 

 

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28
Apr 12

Mumbai alone will consume 24% of the energy used by entire United States

Developing countries use proportionally less energy than industrialized nations, but this could soon change.  Constantly  rising  HVAC industry CAGR  (often exceeding 20%)over the last decade,rapid increase in double income families and rise in personal incomes in India,will result in  increased use of air conditioning. This could lead to an unprecedented increase in energy demand, a researcher says.

Using energy to cool houses and apartments is not yet common in developing countries,” says Michael Sivak of the U-M Transportation Research Institute .He further explains that currently only 2 percent of housing units in India have central or room air conditioning, as compared to almost 90 percent in the United States.

In a new study published in the journal “Energy Policy”, Sivak examines the potential energy demand for residential heating and cooling in the world’s 50 largest metropolitan areas. His analysis used cooling degree day data- a unit used to estimate  the amount of energy needed cool buildings.

One cooling degree day occurs for each day the average daily outdoor temperature is above 18.3⁰ C. Sivak’s analysis indicates that among the world’s 50 largest cities, the top 13 in terms of cooling-degree days are located in developing countries, such as India, Thailand, Vietnam, Philippines, Indonesia, Pakistan, Bangladesh and Nigeria. All but two of the top 30 are in these and other developing nations.

He estimated the potential increase in energy demand for Mumbai  alone in very near future to be in the range of 24% of the total energy demand of whole of United States

Whether the potential cooling demand in India will translate into energy consumption for cooling on the scale of the United States or greater is not clear.

“Differences in energy infrastructure, size and occupancy density of buildings, sustainability concerns, desirable indoor temperature and diurnal use of air conditioning will influence the energy use for cooling in developing countries” Says Sivak.

Nevertheless, the potential for a huge increase in energy use remains.

Toro Cooling Systems  Pvt. Ltd  , the people who created the  very concept of   Ambiator   are   offering Low Energy Cooling alternatives  for space cooling.The company  is  now expanding its operations  nation wide  and is inviting   HVAC  professionals, having  existing air conditioning business  to join  as business  associates  in all major towns of India .

You can write to ba@ambiator.com for application and product brochures.


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20
Apr 12

An appeal from a fellow ISHRAE member

Dear ISHRAE members:

Many of you were you were young and others not so young in Feb 1990 when the first ever ACREX was held at Bangalore. I remember having made a fervent appeal through a flyer to save energy. The effort got a very lukewarm response as it was not very fashionable to talk about energy efficiency in those days.

HVAC space has become very crowded and fiercely competitive over the last few decades and we all have to make a great effort, for our share in the market.  We see advertisements by HVAC companies sound like a cruel joke. Claims and counter claims about meaningless ornamental improvements without any relevance to sound engineering.

This attitude does not befit a  member of the elite ICBM club and super power aspirant nation. Continue reading →

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17
Apr 12

Welcome from AMBIATORO

Dear friends at ISHRAE/ASHRAE and other fellow HVAC professionals

Hi,

Many of you may have received our first marketing mailer this morning. As the originators of sustainable cooling technology, now commonly known as Ambiator Technology, we have now decided to make it available all over the country.

We will soon be inviting business associates from all  tier-2 towns in India.

Keep watching for our regular mailers from now on every Tuesday! You will find these mailers very informative but also provocative but extremely valuable professionally.

You will also discover exciting business propositions, as  we go along. Our new web site will also be in place before the month end. This blog will be part of our new website. You will be able to unearth   useful white papers , case studies and application notes  besides the Ambiator technical data.

We welcome you to join us in our effort to make a profit able business while offering sustainable and energy efficient space  cooling  solutions to our customers and saving  electrical energy for the nation.

 

 

 

 

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03
Dec 11

End-use energy efficiency need of the hour

We are heading towards a situation where we can face severe net energy deficiency as well as sky-rocketing prices.

“Serious intervention of the authorities is required to ensure energy efficiency as we are literally on the razor’s edge,” said Ajay Mathur, director general, Bureau of Energy Efficiency (BEE), recently. Observing that India might face severe energy crunch in the future, he said serious steps should be taken to ensure end-use energy efficiency.

Well, many concerned citizen have been shouting from the roof tops for years to manage the demand side. BEE has indicated that the building ventilation and cooling systems consume more than 60% of the total energy used by buildings. Total energy consumption by HVAC alone has touched nearly 16% of the total energy produced by India.

As yet, India has very low penetration(less than 2% households) of air conditioning but the rate at which it is being adopted is alarming.Increase in double income families and general economic well being of world’s largest middle class will increase the adoption of air conditioning to double digit numbers before the end of this decade.

Unless a very serious attempt is made to improve the end use efficiency of cooling systems in India, it will put extreme pressure on the electrical grid. Frequent power cuts will be the only answer!

New power plants need nearly 10 years from planning to production. Decisions to prioritize power generation by solar, nuclear or thermal route are in total confusion. Power sector is virtually paralyzed at the moment

Even developed countries like USA have been spending million of Dollars on finding energy efficient alternatives to conventional refrigerative Air conditioning. Many countries in Europe are seriously considering use of already developed air conditioning alternatives based on non refrigerative cooling.

Indian power sector is totally indifferent to this problem; neither there is an attempt to encourage use of Low Energy Cooling technologies nor any disincentive on poor end use efficiency.

We need to find ways and means to tackle poor end use efficiency especially in building air conditioning.

We must do it now, before it is too late

 

 

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22
Sep 11

HVAC Technology- New Efficiency Advances

Three most important selling propositions flaunted by all HVAC equipment manufacturers are energy efficiency, energy efficiency and energy efficiency.

The consistently rising operating expenses due to perpetually escalating energy costs are forcing facility owners/managers to look for new ways to improve the operating efficiency of their energy guzzling air conditioners.

HVAC manufacturers world over have been responding by trying to squeeze even more out of their systems. For example, the efficiency of chillers has risen slowly to the point to which the latest generation offers peak-load efficiencies 25 percent higher than those of 10 years ago. Changes in control systems and the use of variable-frequency drives have improved part-load efficiencies of chilled water production and transmission.

So we can safely say that the production and transmission of cooling has been the major thrust areas but the Demand Side Management (read Air Handling Unit) has remained as inefficient as it was a century back. Continue reading →

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14
Jul 11

Evaporative cooler that functions effectively during monsoon too!

Any Evaporative cooling unit can supply adiabatically cooled 100% fresh air using Cellulose media and raw water during dry summer. However during monsoon dehumidification becomes essential to ensure comfortable indoor conditions. Toro  Green Tech India has introduced a new economizer that offers benefits of energy efficient space cooling in industrial, commercial and institutional buildings even in monsoon.

During monsoon when the evaporative cooling units become ineffective, the Two Stage Economizer introduced by the company proves to be a cost effective solution.

The unit has a unique configuration that uses chilled water at 12⁰C from the chilled water return line to cool and dehumidify the required quantity of fresh air based on the space set point. Required amount of chilled water from the CHW return line passes through the primary side of a special PHE having 90% or higher thermal efficiency.

An additional benefit is  improved chiller performance !

The secondary side of the Plate Heat Exchanger circulates the sump water of the evaporative cooler as usual over the cellulose media in an open cycle, excepting that the temperature of the sump water can now be controlled at the desired temperature thanks to the PHE using chilled water from the return line. This   process enables control of supply air dew point to facilitate maintaining the desired indoor conditions in all seasons.

Interestingly the Economizer uses a variable frequency drive and PI controller to save energy by modulating supply air quantity to meet the  ever changing ambient due to day and night temperature swings, besides  the seasonal temperature and humidity variations.

Unique integration of special components like stainless steel PHE, PI digital thermostat with special proprietary techniques like use of 12⁰C chilled water from the return line and maintaining open cycle  flow of water on the evaporative cooling pad. The Two Stage Economizer does not lose any chilled water by evaporation.

The Two Stage Economizer looks like a cost effective  and complete air conditioning system for non-circulating fresh cooled air for banquets, marriage halls, large commercial buildings, pharma warehouses, exhibition halls, defence establishments, religious and prayer halls, hotel kitchens and laundries.

On the water side process, the unit includes a cellulose media, submersible pump, water to water Plate heat exchanger with modulating valve and a proportional chilled water thermostat. The air side uses a direct driven backward fan working in blow through mode and modulated by an integral VFD controlled by a digital PI temperature controller.

It is assumed that Chilled water source for providing 12⁰C (normal chilled water return line temperature) water is available. The Economizer is the only commercially available space cooling solution that can provide measureable  savings in almost all the industrial, commercial and institutional comfort cooling and other non critical air conditioning applications in dry and composite climates.

 

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03
Jun 11

Why low hanging fruit of HVAC systems is not plucked?

Energy efficiency measures should be a no-brainer for HVAC users, because they are accompanied by cost savings, but that is just logic!

Cost effective measures for saving considerable amount of energy are available today, as simple and cost effective retrofits. It is possible to improve the energy efficiency of installed systems with investments offering shortest payback periods.

If the plant /facility managers were also finance managers, no doubt this ‘low hanging fruit’ would have been plucked. As normally, they’re not so sensitive to finance so the information about these economically rational options does not necessarily mean that these options will be taken up by them. Continue reading →

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12
May 11

13 Reasons to Adopt LowOpex Comfort Engineering Alternatives

  1. Rapid economic development, growth of double income families and general life style trends will change India’s energy consumption patterns, resulting in substantially increased energy consumption and costs, as well as increased peak demand spikes affecting grid performance. Continue reading →
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22
Mar 11

Killing you softly-Air Conditioned Sick buildings!

Many years back, I read this cover story in BusineesWeek about the Sick Hotel Building and how the manager got exposed to Aspergillus strain of mold. While sorting out the mess in his hotel building he inhaled the mold’s toxic fungal spores. These bio aerosols landed on the delicate mucous membrane of his airways and lungs, causing chronic inflammation and eventually leading to a medical diagnosis of hypersensitivity pneumonitis.

The condition further scarred his lungs and eventually progressed into pulmonary fibrosis, a disease that is painful, debilitating, and sometimes even fatal. Slowly and invisibly, his workplace was killing him.

This is a decade old story, when we did not have as many air conditioned buildings in India as we have today. Air Conditioning was still a luxury more or less. Things have changed phenomenally during the last decade. More and more new buildings are not only getting designed by leading Indian and foreign architects but many of them are getting LEED certified as green and sustainable buildings.

It is nice to know to know that Indoor Air Quality is recognized as a must for all newly air-conditioned and LEED certified buildings. India has only 137 buildings that are LEED certified and hence have provision to meet IAQ norms and are safe for human occupancy.

On the other side, we have thousands of  air conditioned buildings used for IT, BPOs, Commercial offices, Govt. Buildings, Corporate  offices, International schools, Cinemas, Multiplexes, Performing art theatres  even Banquets and International conference venues which are surley sick buildings and  will not meet even the minimum IAQ requirement. Continue reading →

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