Tag: Electrical Engineering

Resilience Performance

Resilience Performance

Resilience Performance

07/31/18

“How can we quantify what is produced by critical infrastructure systems?”

 

Critical Infrastructure Systems are one the most important bedrocks of society. However, how can we apply a metric to quantify its outputs? Well, by applying something known as Resilience Performance, we can evaluate a system’s output. Examples of Resilience Performance include energy produced by solar panels or their fault tolerance. Resilience performance is commonly used to evaluate Resilience Capabilities.

Resilience Capabilities

Resilience Capabilities

Resilience Capabilities

07/30/18

“How can we measure how effective resilience capabilities are organized?”

 

Resilience Capacities are necessary to organize Resilience Inputs. But some have more flexibility than others. So how can we apply a metric to this? Well, by using Resilience Capabilities we can evaluate the effectiveness of how the resiliency response can be carried out, such as how the ability to repair damaged power lines.

A New Guide For High-Performance Energy-Efficient Buildings in India

A New Guide For High-Performance Energy-Efficient Buildings in India

A New Guide For High-Performance Energy-Efficient Buildings in India

07/26/18

“Is there a new guide for energy efficient buildings in India?”

 

India is a massive country. With an area larger than the Arabian Peninsula and a population size equal to four times the United States, it definitely has something to say about size. And every single one of those people probably lives, works, and plays in some sort of building. That must be a lot of buildings. And to keep everyone cool and productive in the hot Indian Climate, a lot of energy is going to go towards HVAC and Lighting Systems. Combine this with a large population growth and intense economic development, and it looks like more and more people are going to be in these buildings.

 

So like any nation with these factors, India should be looking to see how it could supply this future growth in energy. After much studying into this issue, the nation of the Ganges has decided that one of its primary directives must be to vastly increase energy efficiency in the building sector. After working with Lawrence Berkeley National Laboratory, the same center that produced The Rosenfeld Effect, a new Guide For High-Performance Energy-Efficient Buildings in India has been produced. This series of documents delves into how India can achieve its climate change reduction goals with regards to the building sector by addressing its unique workforce, construction activity, culture, and climate.

 

Bottom line, I recommend that everyone in the energy space should take at least a few peaks at it right here!

Electrical Ballasts

Electrical Ballasts

Electrical Ballasts

07/22/18

“How can we limit the amount of current entering an electrical load?”

 

Electrical appliances can be very sensitive to their supply conditions. One part of this is their supply current. If they receive too much, then they may burn out and stop working. To solve this, Electrical Ballasts have created to limit the amount of current entering a load. They may just be a simple resistor, capacitor, inductor, or a combination of these.

Band-Pass Filters

Band-Pass Filters

Band-Pass Filters

07/08/18

“How can we combine a low-pass and a high-pass filter?”

 

High-pass and low-pass filters are great for attenuating signals to certain extreme frequencies. However, sometimes we would like to only have a certain range of frequencies neither high nor low present instead. This is where we can use a band-pass filter, which limits the frequency range to a certain bandwidth.

Dither

Dither

Dither

07/07/18

“How can we fix signal noise by inducing noise?”

 

When converting a signal from a higher-bit to a lower-bit resolution, unpleasant noise can be induced. To fix this, we can add in some low-volume noise called Dither before the conversion, effectively eliminating the truncation error. Dithering is commonly used in audio sampling during file compression.

Demodulation

Demodulation

Demodulation

07/05/18

“How can we extract information from a signal?”

 

Modulation is amazing for transmitting signals along great distances. However, in order to retrieve their information we have to revert them back to their original form. This can be done with Demodulation, usually done by multiplying the received signal by a signal identical to the Carrier Signal to rectify it.

Modulation

Modulation

Modulation

07/05/18

“How can we transmit information through signals across long distances?”

 

Audio signals are great for transmitting information from one place to another. However, they lack the ability to travel far. So how can we get around this problem? Well, radio frequencies happen to be very capable of traveling great distances. So why don’t we merge our audio frequency Modulation Signal with a radio frequency Carrier Wave to get a new, information-rich, distance capable Modulated-Carrier Signal? This is the idea behind Modulation and is one of the most fundamental parts of radio transmissions.

Battery Recycling

Battery Recycling

Battery Recycling

06/29/18

“Can we recycle batteries?”

 

Once used up, batteries are thought to be gone for good. This idea especially compounded since their hazardous composition makes them banned from normal municipal waste. However, if we use our engineering mindsets, then we can know that some of the parts can actually be reused, especially the plastic and chemicals used.