In this context of changing and challenging market requirements, Gas Insulated Substation GIS has found a broad range of applications in power systems for more than two decades because of its high reliability, easy maintenance and small ground space requirement etc. SF6 has been of considerable technological interest as an insulation medium in GIS because of its superior insulating properties, high dielectric strength at relatively low pressure and its thermal and chemical stability. SF6 is generally found to be very sensitive to field perturbations such as those caused by conductor surface imperfections and by conducting particle contaminants. The presence of contamination can therefore be a problem with gas insulated substations operating at high fields.
Some of the energy consumed simply goes up the chimney and never heats your home.
You can search for your power provider and see exactly how green your power is. My power provider is BC Hydro. Combustion of natural gas produces around 58 kg of CO2 per GJ. One GJ is equivalent to Therefore combustion of natural gas produces about 0.
Costs in the above table are based on actual statements for my home over one full year total cost divided by total kWh consumed. This is more accurate that relying on figures quoted by gas or electrical companies which may not include hidden costs.
These results indicate that for my home, heating with electricity is best in terms of CO2 emissions and about the same in terms of cost. Installing a more efficient gas furnace would likely bring the cost per kWh of gas below that of electricity, but the CO2 emissions would still be much higher.
A better alternative could be to install a ground source heat pump. This would be even more efficient than straight electric heat and would produce even less CO2 per kWh used.
The main barrier is the large capital investment. Ads by Google Experimenting with electric space heating Empirical data always trumps calculations, so I performed a simple experiment over a couple of consecutive winters to test the theory.
My home was originally built with a natural gas furnace and forced air heating system. What little gas usage is shown in the second chart was for my hot water heater. The reason I compared only winter months is so that I could be certain all the windows and doors were closed for both tests.
The data below shows the results of my experiment. These first two charts show average continuous power consumption in kW. I determined the average power consumption in each month by taking the total energy consumed in kWh and dividing it by the total time in hours.
Power is a more useful measurement than total energy consumption because, in theory, the temperature difference you maintain between the inside of your home and the outside should be directly proportional to your continuous power consumption.
The two charts seem to indicate strongly that heating my home with electricity is more efficient than with gas.
The average outside temperature during each month is provided on my gas statement, and I monitor the inside temperature myself.Visa Processing Information System I want this project right now its very urjent send me urjently. Update 1/21/ With the Supreme Court’s decision to uphold the ACA (aka Obamacare), and President Obama’s inauguration to a second term today, the US will have universal health care in using an insurance mandate system.
Water billing system The present time is called the computer age - Water billing system introduction. The computer age has given birth to most of the new tools that helps us with everyday task, such as writing, planning, graphing, computing and communicating. Chapter 1: Board Meeting. Two people are in two offices, a hundred miles apart. By coincidence they are both looking at the same page of the same magazine. Theoretical framework AUTOMATED WATER BILLING SYSTEM Figure 1. Conceptual framework AUTOMATED WATER BILLING SYSTEM Figure 2. AUTOMATED WATER BILLING SYSTEM Figure 3. Operational framework AUTOMATED WATER BILLING SYSTEM Figure 4. System block diagram /5(1).
Sabtang Automated Water Billing System Why does the propose system, Sabtang Automated Water Billing System considered as a need of a certain municipality?
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We Are committed to providing superior expertise and exceptionally responsive service, all at competitive rates. The general objective of the report: The general objective is to complete the internship. As per requirement of BTHM Program of the Victoria University of Bangladesh (VUB), one student can gather practical knowledge about the Hospitality industry.
Access. The water supply and sanitation infrastructure is insufficient, especially in rural areas and concerning sanitation. There are substantial discrepancies between access data from various sources, partially because of different definitions being used by different institutions that are providing access data.