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Posts Tagged ‘climate change’

Energy Management

Friday, January 29th, 2010

Best Practices: Energy Management

In Energy management we follow certain practices that help us in reducing our electricity bills without affecting the quality of life. We have benefitted from these practices; our results show maximum 30% reduction in our electricity bills. These practices can be further improved upon.

We at Paharpur Business Centre follow these best practices in energy management

  • Instead of GLS lamps, we use PL lights, which are plug in CFL lamps, they use compact fluorescent (CFL) technology meaning they are efficient and less costly to replace.
  • All fluorescent lights in our office are Philips trulite which are BEE 5 star rated with electronic ballast.
  • Motion sensors are used to switch off lights in unoccupied common areas.
  • All our displays are energy efficient LCDs/Plasma to save on energy.
  • Energy consumption is monitored and analyzed on daily basis.
  • Green mesh & heat reflective film has been put on the south wesh side of the building to block the direct sun heat into the building.
  • High albedo paint has been put on the building envelope to reduce the indirect heat gain into the building.
  • The heat gain into the building from the rooftop is minimum because of green house.
  • Use of  five star rated equipments especially air conditioners.
  • High Efficiency Super Diesel is used for all DG sets to reduce pollution.
  • Diesel is centrifuged to clean it before use in the Generators.
  • Energy consumption is monitored and analyzed on daily basis on a BAS system
  • Green mesh & heat reflective film is put on the south west side windows of the building to block the direct sun heat into the building.
  • High albedo paint has been put on the building envelope to reduce the indirect heat gain into the building.
  • The heat gain into the building from the rooftop is minimum because of green house that has been created on the roof.

Energy Saving Features of our HVAC System

  • Chiller has a COP of 6.15; it’s an efficient 212 TR water cooled screw chiller from Trane.
  • Two way valve regulate the chilled water inlet into the AHU coil as per the heat load.
  • CO2 sensors have been put to regulate the fresh air inlet inside the air conditioned space. Its demand controlled ventilation.
  • New Pumps and all AHU motors are VFD controlled.
  • UVC light have been installed on the AHU cooling coils to keep the air & coil clean of indoor air contaminants.
  • The new system has VAV in air circuits to regulate the air supply as per heat load.
  • New Double skin AHU help reduce the leakage & noise.
  • Heat Recovery wheel unit ensures that incoming fresh air is precooled before it is let in into the system
  • Complete system is managed centrally through BMS

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Economic Times- Tackle climate change now: Scientists

Thursday, July 16th, 2009

Tackle climate change now: Scientists

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New Delhi, 7 July 2009

As leaders of the world’s 13 major countries prepare to meet at the G8+5 summit in Italy this week, 24 leading scientists from these countries have appealed to them to take immediate action to combat climate change.

“We come together to call on our government leaders to recognise both the unacceptable risks that climate change creates for our societies, and the unprecedented opportunities a clean energy, low-carbon transition creates for our economies,” the scientists said in a joint appeal.

The appeal appeared as an advertisement in the International Herald Tribune newspaper Tuesday. The scientists asked the leaders of the industrialised eight and developing five countries to take five specific steps at their summit this week:

  • Recognise that present global warming of 0.8 degree Celsius above pre-industrial levels is already having a significant impact, and that warming exceeding 2 degrees Celsius predicted for later this century would create great risks and have irreversible consequences.
  • Commit to peak global greenhouse gas emissions by no later than 2020 and reduce these by at least 50 percent relative to 1990 levels by 2050.
  • For developed countries, commit to emissions reductions of at least 80 percent relative to 1990 by 2050 with appropriate intermediate targets set in time for Copenhagen (the next climate summit scheduled this December).
  • For developing countries, commit by Copenhagen summit to significant gains in energy efficiency, reductions in carbon intensity, and cuts in non-carbon dioxide greenhouse gas emissions over the next two decades; this should be designed to support sustainable development and to lead to substantial reduction from business-as-usual emissions.
  • Recognise that the impacts of existing changes in climate are primarily due to past emissions by developed nations, and that unless the burden of poverty in developing nations is alleviated by significant financial support for mitigation, adaptation, and the reduction of deforestation, that ability of developing countries to pursue sustainable development is likely to diminish, to the economic and environmental detriment of all.

Read the full article here

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