Heating system, energy efficiency, solar panels, wind turbines, electric radiators, thermal energy, electrical energy, cost comparison, energy consumption
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Abstract
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Abstract
This document provides calculations for determining the most energy-efficient and cost-effective heating system for a room, comparing solar panels, wind turbines, and electric radiators.
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[...] The electrical energy Er is calculated with the following formula, Eu being the useful energy: The underfloor heating consumes approximately 1889kWh to heat the room for a year. The consumption cost over 10 years is 3287 euros. The installation of the electric heating costs 200 euros. The installation of the heated floor costs 1600 euros. The most profitable system over 10 years is the electric radiator. Part Powering the Electric Heating System The efficiency is approximately 10.4% The energy consumed is the energy received. The energy consumed is approximately 19231 kWh. The minimum surface area of solar panels to be installed is 18m². [...]
[...] The work of The work is null because the alpha angle is 90°. The kinetic energy theorem between A and On convertit Va : 60km/h = 60/3,6 = 50/3 m/s The speed at point B is approximately 13.40 m/s or 48.24 km/h. This difference in speed is due to the friction of the snow that slows down the speed. The direction of the force is tangent to the trajectory, and sense is that contrary to the movement. The friction force has a value of approximately -2249 Newton, it is resistive because it is negative and opposes the movement of the system. [...]
[...] The heating system must produce 1700 kWh per year to heat the studied room for a year. It is assumed that the heating system operates 6 hours/day and for 190 days. The system will operate for 1140 hours for the year. To calculate the thermal energy that the heating system can produce for the room during a year, we use the following formula: The system can provide 2280kWh, so it provides the necessary thermal energy. The electrical energy Er is calculated with the following formula, Eu being the useful energy: The electrical energy consumed by the electric radiator over a year is 2125kWh. [...]
[...] The energy consumed is approximately 2982 kWh. The consumption cost over 10 years is approximately 3083 euros. Balance The gas boiler with the water radiator would cost approximately 16083 euros over 10 years, which is much more expensive than the other systems. The best association from an economic point of view is the electric radiator with solar panels (answer a). In fact, the solar panels cost 9000 euros and the radiator 200 euros to install, making a total of 9200 euros. [...]
