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Tackling the Green

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Going Green, is it becoming controversial

Within the realms of self-assessments and claiming to be green, one wonders if the public deems this acceptable or better yet, credible. What are the aspects that are frequently over looked and is there a feeling within the market that the South African Green Star Rating is forgetting certain elements, or is a system that is not easy to obtain. In short: How can the Green Star Rating system be improved in terms of the categories referred to above, and how ethical is it to self-assess?
Besides having phenomenal architectural aesthetics and importance, which many building may have (with many thanks to the highly regarded architects in South Africa), buildings and projects, specially within the HVAC & R sector have been called green rated, despite having had an official rating from the GBCSA. “The GBCSA does not endorse any self-assessed rating achieved by the use of Green Star SA,” states the organisation.

In the very deepest efforts to become serious about becoming environmentally friendly, the Green Star Rating was innovatively developed after being based on world wide standards, and especially on that of the Australian Green Building ratings. In taking every aspect that could possibly lead to obtaining the most suitable and sustainable practice within the architectural practices in South Africa, The Green Building Council of South Africa (GBCSA) has based ratings in categories of management (Man), Indoor Environment Quality (IEQ), Energy (Ene), Transport (Tra), Water (Wat), Materials (Mat), Land Use & Ecology (Eco), and Emissions (Emi). Added to this the GBCSA has made provisions for Innovation (Inn) within the Green Star Rating System where new unseen areas of going green could be considered when thought has been plunged into the development of an environmentally friendly building.
 

Refrigerants on the OUT.Refrigerants on the OUT.Refrigerants on the OUT.

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R22 is coming to an end, WHAT NOW?

Europe is phasing out the use of R22 refrigerant gas in 2010 via CAPS in line with regulations stipulated by the Montreal Protocol. The chance for objections and the voicing of concerns in South Africa has been missed and by 2013 RSA starts her trip down the road of phasing out R22 by way of CAPS.

As the new regulations come out for comment, then the HVAC & R industry will have the chance to voice their opinions again. Despite this, the chance for debate is now zero, and the South African regulations regarding refrigerants will be coming, whether the public likes it or not.

How far are some companies willing to go in order to keep the Green Scorpions from knocking on their doors? It can’t be helped but to think that the industry will have some growing pains attached to this, and how will the industry adapt, if they have not started as yet. The biggest question is rests on what advice can be given to those who are leaving this adaptation to the last minute, or have not yet really given the phasing out of HCFCS much thought.
 

Inverter Technology in Contrast to Variable Speed Drives

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Out in the world of air conditioning different logics exist as to the use of inverter technology and that of variable speed drives (VSD’s). EC&M sums up the VSD theory of using this technology as having the necessities of having ample current capacity for the motor in order for it to produce the required torque for the given load. “You must remember that machine torque is independent of motor speed and that load horsepower increases linearly with rpm,” cites the site.

In terms of getting to the Inverter Technology, Daikin’s website states that inverters are integrated into the condensing unit and can be compared to the technology in a car: “The harder you push your accelerator, the faster you go.” Thus the unit increases its capacity in order to match the need for cooling down or heating up a room.

What does all this mean at the end of the day?

South Africa is a land looking to save energy, is there one that will eventually be able to win the game of COPs?

If it is not that black and white, which one is most abundantly used out there, and why is it so?

 
   

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