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Carbon Neutrality

Carbon neutrality has become an increasingly significant topic in recent years, as concerns about climate change and the environmental impact of human activities have gained traction. In simple terms, carbon neutrality refers to the state or process of achieving a balance between the amount of carbon dioxide emissions produced and the amount of carbon dioxide removed or offset from the atmosphere. It encompasses a range of practices and initiatives aimed at reducing greenhouse gas emissions and combating warming. But why is this balance so crucial, and how can we pave the way towards a greener future?

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Pioneering the Shift Towards Sustainable Refrigerants

Refrigerants play a crucial role in our everyday lives for creating a comfortable built environment. But the harmful effects it creates on the environment is irreversible. On one hand it benefits human life and on the other hand it finds way to degrade it. In the current scenario the world is more conscious on the climate change impacts and is on an attempt to reduce the global temperature. Conscious refrigerant choices must be made to reduce the negative impacts on the climate. The twofold effects to reduce the global warming are the ODP and GWP. A refrigerant’s capacity to weaken the ozone layer is referred to as ODP, whereas the tendency to trap heat in the atmosphere and exacerbate global warming is referred to as GWP. To reduce the impacts the ODP must be zero and GWP values must be very low.

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How can Developers Save Money by Right Sizing the Wires?

The use of 2.5sqmm wires per circuit has been a long-standing practice since the tungsten era. Back then, it made sense to use such thick wires, given the high-power consumption of tungsten bulbs. However, times have changed, and technology has evolved at an astonishing pace. We are now in the era of LED lights, which have revolutionized the way we illuminate our spaces. Yet, surprisingly, we still find ourselves using 2.5sqmm wires for LED lights. This raises the question: Is this a deliberate attempt by manufacturers, contractors, or distributors to deceive us? Why do we continue to use wires that exceed the required capacity by such a significant margin?

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I am not a load, just a socket

Consultants mistakenly count outlets as electrical loads rather than recognizing them mainly for convenience. This oversight leads to inefficient designs, emphasizing outlet numbers over actual electrical demands.

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NBC’s 45 LPCD Office Requirement: Overcautious or Necessary Compared to 22 LPCD?

The National Building Code (NBC) faces scrutiny for maintaining 45 liters per capita per day (LPCD) standard for water consumption in office buildings. Consultants contend that this policy is outdated and fails to align with contemporary water conservation practices, leading to increased capacities and higher costs. Initially established to ensure an adequate water supply for occupants, the rigidity of the 45LPCD standard is now a point of disagreement as advancements in water-saving technologies and environmental awareness take precedence. The resistance to modifying this policy reflects an outdated mindset that neglects the environmental and economic implications.

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Impacts of Improper Sizing of Harmonic filter

For those tasked with maintaining quality power at a commercial facility facing harmonics issues, the optimal approach involves the installation of a series of active filters. In the application of these filters, a meticulous examination of harmonic control requirements is crucial, and sizing the filter appropriately becomes pivotal in resolving the problem. It is unnecessary to address every amp of harmonic current originating from nonlinear loads, leading to significant savings in required filter size.

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Why do builders invest in 8VA/sqft when the actual need is just 4VA/sqft?

The conventional understanding has long dictated an electrical rule of thumb: 8VA/sqft. However, as we find ourselves well into the 21st century, it becomes increasingly evident that this standard, rooted in the 1980s, is outdated and in need of reevaluation. One might wonder, why persist with 8VA/sqft when technological advancements have transformed the landscape of energy efficiency? The shift from cathode-ray tube computer (CRT: 250W) to light-emitting diode (LED) display computer (60W), the replacement of tungsten bulbs with LED lighting, and the evolution of chiller efficiency from 1.2 kW/ton of refrigeration (kW/tr) to a mere 0.4 kW/tr are testament to the progress we’ve made in optimizing energy consumption.

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Flood Risk Management: How to do it right?

Flooding events are on the rise across the world, in fact there is an increasing trend in the number of disasters and their total economic impacts. Floods have the greatest damage potential of all-natural disasters and affect the greatest number of people. Flood risk ignores borders, rainfall in one location can correlate to flooding in another. On a global basis, there is evidence that damages resulting from flooding are on the rise at an alarming rate. It is estimated that flooding affects more than 250 million people globally each year and results in over 1000 crores in economic damages. This is a trend that will continue unless concerted actions are taken to mitigate the impacts from flood risks.

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