Emission norms for Diesel Generators.

With all due respect to how much technology has advanced in the past few decades itself, pollution and harm to the environment has grown to an alarming state. If it weren’t for certain norms, rules and regulations that monitor the number of factors polluting the environment, the world would have been in shambles.

In India, the Ministry of Environment has been working tirelessly to ensure that the ratio for pollutants is balanced well with nature. The latest amendment from Ministry of Environment (Central Pollution Control Board) was rolled out in July 2014 which calls for substantial reduction in emissions from diesel generator sets.

These norms put a limit on how much volume of pollutants a certain diesel generator must emit. And the only thing better than damage control is preventing the harm. Most diesel generators produce harmful gases like Sulphur Dioxide, Carbon Mono Oxide, and Non-Methane Hydro Carbons among others.

What makes Mahindra Powerol Diesel Generators a whole lot better than most generators is the minimal amounts of hazardous gasses in parts per million units of volume that are emitted from their highly efficient diesel generator sets. 

From plants located in the municipality boundaries of a city or town to those located in distant areas, the standards set by the State Pollution Control Board are always met by these diesel generators.

To know more about diesel generators, visit http://www.mahindrapowerol.com/

Waste Heat Recovery Systems on DG Set Exhausts.

Everything around us works on energy in some form or the other. So to protect, save and re-purpose energy is truly the need of the hour. From a cosmic concept like that emerges a device of more systemic nature, ‘Waste Heat Recovery Systems’. A waste heat recovery unit (WHRU) is an energy recovery heat exchange that recovers heat from hot streams with potential high energy content, such as hot flue gases from a diesel generator. Waste heat found in the exhaust gas of various processes or even from the exhaust stream of a conditioning unit can be used to preheat the incoming gas. This is one of the basic methods for recovery of waste heat. One uses this process as an economic method.

Here are some examples and the advantages of Waste Heat Recovery Systems on DG Set Exhausts

Waste heat recovery- Pressurized Hot water generators:

These units can be used on a maximum of 2 DG sets of 750 KVA each with an exhaust temperature of upto 450 degree Celsius. The heat recovery is a massive 470000 Kcal/Hr and can work upto 8 hours a day. The unit provides around 44 Lakh worth of savings annually.

Waste Heat Recovery - Steam Boiler:

A single unit can be connected to 2 units with an exhaust temperature bearing capacity of 500 degree Celsius. The heat recovery is as high as 380000kCal/Hr with an annual saving of 34 Lakhs.

Waste Heat Recovery - Air Preheater on Thermo Pack:

With a capacity of 20 Lac Kcal/hr and a FO firing rate of 180 kg/hr this device can handle                 exhaust temperatures upto 250 degree Celsius. The heat recovery is 65000kCal/hour and gives an annual saving of 12 Lac.

Waste Heat Recovery - Steam Boiler on furnace Exhaust:

This device can be used on decarb furnaces with exhaust capacities upto 280 degree Celsius. With heat recovery of 22000kCal/hr the annual savings is upto 9 lakhs.

Waste Heat Recovery - Air Pre Heater on Steam Boiler:

With a functioning capacity of 500 kg/hr at 40 kg/cm2 and an exhaust temperature of 350 degree Celsius, this device can efficiently handle heat recovery upto 30000 k cal/hr. giving an annual saving of 7.5 lakhs.

Waste Heat Recovery - Hot Water Generator:

Usually used for heat treatment furnaces with an exhaust temperature of 400 degree Celsius & an HSD firing rate of 40 kg/hour this equipment can handle heat recovery of upto 100000kCal/hour and save upto 16 lakhs.  

Solving Disputes Related to Maintenance

One of the biggest issues faced by diesel generator owners today is the post purchase maintenance and servicing of the machine. The customer is often bothered by numerous financial disputes such as; Performance of their dg sets, service support for dg sets being delivered on time and availability of inexpensive spare parts.

What the Customer Wants

Undeniably, what every customer wants is an efficient product. In a Diesel Generator, the desired features would be an infallible back-up power system, timely repairs, no uncertain breakdowns and a low cost of ownership.  Despite the customer being offered a 2-year (6000 hour) standard warranty with 4 labor-free services by the manufacturer and the estimated cost of maintaining a diesel generator works out to be Rs. 96-130 a day, there is an immense amount of uncertainty after the warranty period has ended.

Introducing Our Super Shield Plan

The solution to most of these problems is Mahindra Powerol’s 5 year Super Shield plan! This all-inclusive plan covers all charges regarding spares, consumables, repair and labour, with periodic maintenance and a power back-up in case the DG set isn’t repaired within 48 hours.  These advantages reach an unbeatable cost which works out to be less than Rs. 70 per day!

With nearly all conditions covered, the Super Shield Plan is a comprehensive plan resistant to price inflation. All you have to do is pay for diesel while Mahindra Powerol takes care of the rest.

Overall, we at Mahindra Powerol ensure that our service reaches the customers as soon as possible. With our wide-spread service network branching to over 150 service dealers and over 1000 trained technicians, we feel that it is paramount for our customers to be satisfied with our products and we will strive to rectify any issues that may arise.

For more information on Mahindra Powerol and the Super Shield plan please visit us at www.mahindrapowerol.com

Synchronising Panels: Adding seamless symphony to Power

Synchronising Panels are used to ensure seamless flow of power through the DG sets when the main source of power falters.

The act is critical as it prevents any chance of an interim shut down of a critical device during power failure. A power fluctuation can result in the device restarting or even turning faulty.

A modern synchronizer compares the frequency and phase of the two voltages, and sends a correction signal to the summing point of the governor controlling the prime mover of the oncoming generator. When the outputs of the two systems are matched in frequency and phase, the synchronizer issues a breaker-closing signal to the tie-breaker, paralleling the two systems.

These synchronizers may include voltage-matching circuits which send raise and lower signals to the voltage regulator of the oncoming generator. If the voltage of the oncoming generator does not match the bus within set limits, the synchronizer will not allow a circuit breaker closure.

The synchronising panels can perform the following tasks depending on the requirement:-

• Synchronous operation of multiple generator sets with each other.
•  Synchronous operation of a single generator set with network
•  Synchronous operation of multiple generator sets with network
•  Synchronous operation of multiple generator sets with multiple networks

In order for the diesel generator sets to be synchronized, enabling them to run parallel, certain conditions need to be met. They need to have the same voltage, phase rotation, frequency & angular phase relationship. They need to share the load with respect to their ratings.

Check out our range of fuel efficient and silent DG sets on www.mahindrapowerol.com

Mahindra Powerol Ultra Super Silent Diesel Generators

By the sheer nature of its functioning, there are certain rules and regulations that the DG Sets fall in. The fundamental functions of these regulations are to curb the noise pollution that DG Sets may cause.

For instance the noise standards for DG Sets (15-500 KVA) should be less than, 94+10 log10 (KVA), dB (A), at the manufacturing stage. This level should fall by 5 dB (A) every five years. These rules are not just for the manufacturer. There is a need for mandatory acoustic enclosure/acoustic treatment of room for stationary DG sets (of 5 KVA and above). The acoustic enclosure/acoustic treatment of the room should be designed for minimum 25 dB (A) Insertion Loss or for meeting the ambient noise standards, whichever is on the higher side. The measurement for Insertion Loss may be done at different points at 0.5m from the acoustic enclosure/room, and then averaged. The DG set should also be provided with proper exhaust muffler with Insertion Loss of minimum 25 dB (A).

For DG sets of 5 KVA and above, the manufacturer should offer to the user a standard acoustic enclosure of 25 dB(A) Insertion Loss and also a suitable exhaust muffler with Insertion Loss of 25 dB(A). Meanwhile the user should make efforts to bring down the noise levels due to the DG set, outside his premises, within the ambient noise requirements by proper sitting and control measures.

The total sound power level of a DG set, at the user's end, needs to be within 2 dB(A) of the total sound power level of the DG set, at the manufacturing stage. Installation of a DG set needs to be strictly in compliance with the recommendation of the DG set manufacturer. Users are expected to set and follow a proper routine and preventive maintenance procedure for the DG set, which would help prevent noise levels of the DG set from deteriorating with use.

Additionally the generator sets above 5KVA are not allowed to be operated in residential areas between the hours from 10.00 p.m. to 6.00 a.m. The only exceptions to this rule are the generator sets of Group Housing Societies and Multi-storey residential apartments". The diesel generator sets above the capacity of 5 KVA in all areas residential/commercial/industrial shall operate only with the mandatory acoustic enclosures and other standards prescribed in the Environment (Protection) Rules, 1986. Diesel generator sets used in social gatherings and public functions shall be permitted only if they have installed mandatory acoustic enclosures and adhere to the prescribed standards for noise and emission as laid down in the Environment (Protection) Rules, 1986. Flouting of these rules may land the user/manufacturer under trouble. It may be a punishment of imprisonment for a term which may extend to five years with fine which may extend to one lakh rupees, or with both.

So while we use DG Sets to ensure our comfort, we need to ensure compliance with various factors so that the experience is as pleasant for those living around.