Egain Forecasting
Encyclopedia
Egain forecasting is a method of controlling building heating by calculating demand for heating energy that should be supplied to the building in each time unit. By combining physics
of structures with meteorology
, properties of the building, weather
conditions including outdoor temperature, wind power
and direction, as well as solar radiation can be taken into account. In the case of conventional heating control, only current outdoor temperature is considered.
The starting point for developing the method of eGain forecasting was the ENLOSS mathematical energy balance
model developed by Prof. Roger Taesler
from Swedish Meteorological and Hydrological Institute in cooperation with Thorbjörn Geiser and Stefan Berglund, who are currently both employed at eGain Sweden AB. Forecasting method began to be introduced to use in the late 1980s.
Until 2010 inclusive, forecasting method has been introduced in nearly seven million square metres of floorage of residential buildings and commercial premises. Estimated data indicate 10 - 15 kWh/m2 reduction of average annual heat energy consumption. Since forecasting method contains information about future demand and is not in conflict with other methods of increasing energy efficiency
, it is always a good foreground solution.
forecasting receivers are used to send and receive data by means of GPRS
or GSM network. Then, the forecasting receivers manage the operation of control panels installed in buildings which adjust distribution of heat energy in the heating system
of a given property.
Recently, special remote control weather loggers have started to be used in combination with forecasting receivers. The weather loggers measure air temperature and humidity
with high accuracy and the measurements are sent in real time to forecasting receivers to which they are connected. Such a turning point in technology
means even more detailed preview of situation and better possibilities of control for users of forecasting method.
Physics
Physics is a natural science that involves the study of matter and its motion through spacetime, along with related concepts such as energy and force. More broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves.Physics is one of the oldest academic...
of structures with meteorology
Meteorology
Meteorology is the interdisciplinary scientific study of the atmosphere. Studies in the field stretch back millennia, though significant progress in meteorology did not occur until the 18th century. The 19th century saw breakthroughs occur after observing networks developed across several countries...
, properties of the building, weather
Weather
Weather is the state of the atmosphere, to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy. Most weather phenomena occur in the troposphere, just below the stratosphere. Weather refers, generally, to day-to-day temperature and precipitation activity, whereas climate...
conditions including outdoor temperature, wind power
Wind power
Wind power is the conversion of wind energy into a useful form of energy, such as using wind turbines to make electricity, windmills for mechanical power, windpumps for water pumping or drainage, or sails to propel ships....
and direction, as well as solar radiation can be taken into account. In the case of conventional heating control, only current outdoor temperature is considered.
The starting point for developing the method of eGain forecasting was the ENLOSS mathematical energy balance
Energy balance
Energy balance may refer to:* First law of thermodynamics, according to which energy cannot be created or destroyed, only modified in form* Energy balance , a measurement of the biological homeostasis of energy in living systems...
model developed by Prof. Roger Taesler
from Swedish Meteorological and Hydrological Institute in cooperation with Thorbjörn Geiser and Stefan Berglund, who are currently both employed at eGain Sweden AB. Forecasting method began to be introduced to use in the late 1980s.
Until 2010 inclusive, forecasting method has been introduced in nearly seven million square metres of floorage of residential buildings and commercial premises. Estimated data indicate 10 - 15 kWh/m2 reduction of average annual heat energy consumption. Since forecasting method contains information about future demand and is not in conflict with other methods of increasing energy efficiency
Efficient energy use
Efficient energy use, sometimes simply called energy efficiency, is the goal of efforts to reduce the amount of energy required to provide products and services. For example, insulating a home allows a building to use less heating and cooling energy to achieve and maintain a comfortable temperature...
, it is always a good foreground solution.
eGain Forecasting in practice
As far as practical use of forecasting method is concerned, usually remote controlRemote control
A remote control is a component of an electronics device, most commonly a television set, used for operating the television device wirelessly from a short line-of-sight distance.The remote control is usually contracted to remote...
forecasting receivers are used to send and receive data by means of GPRS
General Packet Radio Service
General packet radio service is a packet oriented mobile data service on the 2G and 3G cellular communication system's global system for mobile communications . GPRS was originally standardized by European Telecommunications Standards Institute in response to the earlier CDPD and i-mode...
or GSM network. Then, the forecasting receivers manage the operation of control panels installed in buildings which adjust distribution of heat energy in the heating system
Heating system
A heating system is a mechanism for maintaining temperatures at an acceptable level; by using thermal energy within a home, office, or other dwelling. Often part of an HVAC system. A heating system may be centralized or distributed.-See also:...
of a given property.
Recently, special remote control weather loggers have started to be used in combination with forecasting receivers. The weather loggers measure air temperature and humidity
Humidity
Humidity is a term for the amount of water vapor in the air, and can refer to any one of several measurements of humidity. Formally, humid air is not "moist air" but a mixture of water vapor and other constituents of air, and humidity is defined in terms of the water content of this mixture,...
with high accuracy and the measurements are sent in real time to forecasting receivers to which they are connected. Such a turning point in technology
Technology
Technology is the making, usage, and knowledge of tools, machines, techniques, crafts, systems or methods of organization in order to solve a problem or perform a specific function. It can also refer to the collection of such tools, machinery, and procedures. The word technology comes ;...
means even more detailed preview of situation and better possibilities of control for users of forecasting method.