MK Energy
Design, Supply & Install
Energy Saving Systems
Boiler Management Overview
Where a sophisticated Building Management System is installed at great expense by an expert systems programmer there is an 'efficiency gap' in the control strategies of such systems. Boilers, in principle, need to provide the correct amount of heat energy to balance building heat losses and gains under given set point and weather conditions.
What is not understood is that 'state of the art' installed building controls - even those produced and sometimes maintained by prominent global suppliers such as Siemens, Honeywell (Trend) and Johnson - are falling short of the ability to dynamically balance building heat gains and losses through their currently embedded or programmed control strategies.
The two main contributors to heat wastage in buildings, whether poorly or well controlled, are:
Boiler set-point temperatures are nearly always unnecessarily high even if compensated for demand.
Control decisions to change boiler temperatures, sequencing or the mixing of primary temperatures to achieve lower secondary temperatures are made as a result of inside and outside temperature differences and not building heat losses and gains. Every building has its own heat transfer profile and heat "inflows" have to be dynamically reconciled with "outflows" for good energy.
What is not understood is that 'state of the art' installed building controls - even those produced and sometimes maintained by prominent global suppliers such as Siemens, Honeywell (Trend) and Johnson - are falling short of the ability to dynamically balance building heat gains and losses through their currently embedded or programmed control strategies.
The two main contributors to heat wastage in buildings, whether poorly or well controlled, are:
Boiler set-point temperatures are nearly always unnecessarily high even if compensated for demand.
Control decisions to change boiler temperatures, sequencing or the mixing of primary temperatures to achieve lower secondary temperatures are made as a result of inside and outside temperature differences and not building heat losses and gains. Every building has its own heat transfer profile and heat "inflows" have to be dynamically reconciled with "outflows" for good energy.
How the MK Enermatic System saves energy
Our system's objective is:
"To fire the least number of boilers, at the lowest possible temperature, for the shortest possible time, without compromising specified space temperature set points, or mechanical integrity."
Specifically the MK Enermatic management system reduces energy consumption by the following:
Optimisation
Utilising data supplied from internal and external temperature sensors (RF or hard wired), the MK system will calculate the optimum plant "start" time. The same software process is also used in calculating the optimum "off' times (plant "end" time). Night set back can be incorporated as part of the overall optimisation function. The MK Systems manages night set back via optimised temperature reductions within variable time periods, as opposed to fixed day and night switching periods.
Compensation
Compensation is defined as the increase in boiler flow temperature that is required to offset a decrease in external air temperature. Using data from external and flow temperature sensors, the MK Systems utilises its self adaptive compensation algorithms to calculate the highest possible compensation ratio (also defined as the lowest possible boiler flow temperature); whilst still maintaining the client's required internal temperature set point.
Sequencing
Sequencing calculates the required number of boilers to meet any given load demand. The MK Systems, through self adaptive sequencing algorithms, manages the boilers in three control stages to determine: The total number of boilers needed to match the load. The number of boilers to run continuously. The firing time of the remaining (non-continuous) boiler by
Our system's objective is:
"To fire the least number of boilers, at the lowest possible temperature, for the shortest possible time, without compromising specified space temperature set points, or mechanical integrity."
Specifically the MK Enermatic management system reduces energy consumption by the following:
Optimisation
Utilising data supplied from internal and external temperature sensors (RF or hard wired), the MK system will calculate the optimum plant "start" time. The same software process is also used in calculating the optimum "off' times (plant "end" time). Night set back can be incorporated as part of the overall optimisation function. The MK Systems manages night set back via optimised temperature reductions within variable time periods, as opposed to fixed day and night switching periods.
Compensation
Compensation is defined as the increase in boiler flow temperature that is required to offset a decrease in external air temperature. Using data from external and flow temperature sensors, the MK Systems utilises its self adaptive compensation algorithms to calculate the highest possible compensation ratio (also defined as the lowest possible boiler flow temperature); whilst still maintaining the client's required internal temperature set point.
Sequencing
Sequencing calculates the required number of boilers to meet any given load demand. The MK Systems, through self adaptive sequencing algorithms, manages the boilers in three control stages to determine: The total number of boilers needed to match the load. The number of boilers to run continuously. The firing time of the remaining (non-continuous) boiler by
Proven Technology
MK Management Systems access the latest technology. The system incorporates the latest microchip electronic circuiting technology, which is programmed to the changing load on the boiler as well as to regulate the firing pattern accordingly.
The MK boiler thermal management controllers supplied by
MK Energy, increase the efficiency of existing central heating boiler systems without physically altering any constituent part of that system. To understand how this is achieved consideration must be given to a typical commercial heating installation.
MK 's product range approaches thermal management of boilers for hot water and central heating systems in the most innovative manner. MK systems have achieved this by introducing a proportional control element within the existing control loop, thereby minimising temperature over-shooting attributed to two-step thermal controllers. This is attained by employing an Embedded Micro controller with its associated input sensors that measure the flow and return water temperature and variations in external temperature. This data is computed instantaneously, only initiating boiler firing when the differential temperature exceeds the pre-set limit, thereby matching the boiler's thermal output to the average heat transferred by the radiators. Boiler efficiency and comfort of employees is further enhanced by measuring external temperature trends and computing a new boiler firing pattern in anticipation of future demands thus maintaining the premises at the desired temperature by averting large temperature deviations.
MK 's product range approaches thermal management of boilers for hot water and central heating systems in the most innovative manner. MK systems have achieved this by introducing a proportional control element within the existing control loop, thereby minimising temperature over-shooting attributed to two-step thermal controllers. This is attained by employing an Embedded Micro controller with its associated input sensors that measure the flow and return water temperature and variations in external temperature. This data is computed instantaneously, only initiating boiler firing when the differential temperature exceeds the pre-set limit, thereby matching the boiler's thermal output to the average heat transferred by the radiators. Boiler efficiency and comfort of employees is further enhanced by measuring external temperature trends and computing a new boiler firing pattern in anticipation of future demands thus maintaining the premises at the desired temperature by averting large temperature deviations.
