The use of green energy sources requires automatic control of heating
Optimal use of free and green energy sources requires automation control system, allowing optimal and efficient use of the energy source, it produces energy from cheap and renewable sources.
This requires instrumentation and to establish a large number of independent segments of the heat, triggered automatically according to e.g. . the presence of the sun , its direction, wind, month, time of day, etc. .
Otherwise, may result in negative energy balance , which means the loss of heating energy.
Automatic heating and ventilation must therefore work together in synergy, not in conflict against each other, eg. fireplace warming and recuperator cooling, or boiler disables the solar collectors.
Despite the well-known expression “Free energy” Device who produce it or receive are neither free nor cheap.
In addition, after some time they start to go bad , lose efficiency or even not suitable for anything.
Very good example is heat pump. In theory, it is a device “perpetual motion” , which gives you much more energy than it takes (reaching 400-600%) .
It is very convenient and comfortable, because under optimal conditions takes 1kW power and in return gives 5 – 6 kilowatts of heat energy.
In the case of not optimal conditions, can lead to a situation , that the heat pump operates like electric heater with an efficiency far below 100% which the use of the most expensive form of energy which is electricity).
Assuming the maximum theoretical efficiency of this device, the price including installation, the payback period is estimated to be about 15 years.
This time is unrealistic to achieve , even in the theory, because it is difficult to assume even the most optimistic, that the device until that time will never break down . Additionally, we are talking about ideal conditions ( in obtaining the maximum efficiency – theoretical). In the case of restrictions efficiency as a result of the actual weather conditions, payback time devices and systems can be extended by another 50% – 100% .
This makes it necessary to look at the long-term and real profitability.
Similar situation in the recuperator , which has a theoretical efficiency of 80 – 90 % . However, if the output temperature is less than room temperature, most recuperators warms it up using ordinary electric heater, which generates losses, by using electrical energy to heat . Recuperators efficiency also decreases , pressure change with respect to the optimal. In addition, the recuperator can hurt us if we apply on the input ground heat exchanger, where there are very large losses of pressure , causing the exhaust air from the house to the recuperator is stronger than supply home. In this case, the house is formed momentary vacuum, which draws cold air from the outside through the air tightness, chimneys, ventilation shafts, fireplace , etc. . In the extreme situation of the recuperator get one fan pulling hot air out of the house, just like a normal bathroom fan.
The performance of the whole heating system may therefore be very easily subjected to a significant drop due to non-optimal operation of the equipment and the lack of a common , intelligent control .
In the case of the use of alternative sources of free and low-cost energy as solar , Fireplace with water jacket , solid fuel boiler and their optimal automation and integrated control (synergy) , often did we would get a much higher energy yields, due to work under optimal conditions with maximum efficiency , sometimes even unattended. It also affects the extension of the life of heating devices, a heat pump, boilers, fireplace, recuperator , which operate at optimum performance and not extreme , outside the range of normal and sometimes permitted work .
Constant increase in electricity prices for energy and heating and the increasingly stringent energy standards is necessary to perform an optimal and cost effective of the heating system and boiler, that we could afford on its heating , when energy prices rise in few years, 2 times or more . Consideration should also take the state of affairs , that the building is unlikely to improve their thermal parameters and sometimes need increasing amounts of energy for heating , to maintain the same temperature as few years ago. This happens as a result of leaks , damp walls and insulation, formation of cracks in the walls, leakage of the hydraulic system, aging of the insulation, increasing humidity of walls and isolation, etc. . The principle of thinking “No matter how much cost heating, it is important to afford for it” is becoming short sight and in the future may prove to be, that’s too high energy consumption per square meter, and official thermal restrictions can cause penalty or require serious renovation of the building and heating system. This is one of the main reasons for expresion: ” house for the enemy ” .
In this context of boiler, ventilation and automatic heating control, must be designed and executed with an excess, leaving a place for “plan B” , if it turns out, that our theoretical considerations did not come home and use is uneconomical. Leaving the options application and the installation of solar collectors, boilers, other fuels is essential to enjoy your own home for decades.
boiler controller , Automatic boiler , control recuperation Smart Home , intelligent Building building management