MICRO COMBINED HEAT AND POWER (MCHP)
THE MCHP UNITMCHP is short for Micro Combined Heat and Power. A MCHP unit is a cogeneration system that produces heat and electrical power from gas simultaneously. A CHP unit is used for supplying power to buildings and hot water for heating or cooling through high efficient heat and power generation.
HOW A MCHP UNIT WORKSCombined heat and power units operate by using energy from natural gas to drive a gas engine. This engine drives the MCHP electricity generator. During operation heat from the gas engine is reclaimed and used to supply hot water from the unit.
SMALL FOOTPRINTThe unit contains an internal combustion engine, generator, inverter, heat exchangers and control system. Does this sound bulky? No way. MCHPs are small, compact and light-weight and have roughly the same footprint as a conventional heating unit. That means you can put them in any space: in the mechanical room, basement, outside on the ground or on the rooftop.
HIGH ON ENERGY, LOW ON THE ENVIRONMENTWhen you connect a MCHP unit to a building to supply power and hot water, you can achieve an extremely efficient energy level. It utilizes up to 87% of the fuel burn versus the average 33% burn rate of conventional, ‘from the grid’ sources. This typically leads to lower energy costs and reduced CO2 emissions compared to remotely generated electricity from the power grid.
RURAL / OFF GRID AREAS
The principle of external combustion makes the Stirling engine also extremely suited for the use in off-grid rural and remote areas. For anybody who wants to live off the grid and wants to use the locally available fuels Stirling is an excellent option for energy independence. Especially in combination with a battery pack and PV.
In northern colder climates with less solar and a higher heat demand the technology is excellent for providing power and heat. Biomass, Biogas and even Fossil fuels like coal can provide the energy for powering the Stirling engine generating electricity and heat.
Also in hot areas Stirling is a feasible option. For burning rice husk, abundant in the hotter parts of the world, a special burner is available. Another technically feasible option is Stirling Solar. This is especially the case in very hot climates where the performance of PV is degrading quickly over time.
INDUSTRIAL REMOTE POWER
The Free Piston Stirling Engine technology, due to its maintenance-free character, is extremely well suited for use in remote areas such as in the Oil & Gas, Telecom and Railway industry. Especially in northern regions where solar power is not a year round option the technology is a powerful solution. In cooperation with our partners different Oil & Gas applications have been developed and are currently being introduced.
One application focuses specifically on pipelines. A weatherproof container housing several engines secures and an intelligent control system powers the Cathodic Protection, SCADA, Telecommunications and Valve control functions on natural gas transport pipe sections. A modular system based on 1 kW or multiples hereof is available.
Another system focuses on providing power on oil well sites. With its external combustion principle the Stirling engine is very well suited for using the well gas which in most of the cases is now flared or combusted.
DOMESTIC (SMALL BUSINESS) USE
Generating heat while also producing power was a more efficient use of energy. By doing so, power is 65% more efficiently generated than with the centralised power plants. The absence of transport losses further improves the efficient use of energy.
This Micro CHP application is especially suited for houses with a higher heat demand. MCHP devices are combined with PV and battery storage. This assures the full use of home-generated power but also reliefs the grid.
Since 2010 several MCHP systems have been brought to the market. This was especially done in Europe and recently also in Korea. Leading heating companies took the lead in this. Appliances are available for Methane Propane, Standard Biogas and wood pellets. Each of these systems have their own characteristics but they have one thing in common: they are all Microgen Powered! Recently these appliances started being used in combination with Battery packs and PV.
LOW MAINTENANCE COSTMaintenance intervals of 10,000 hours (natural gas) or 6,000 hours (biogas) are one of the industry’s longest.
EASY GRID CONNECTIONHigh-efficiency inverter with built- in protection and synchronization devices required for grid connection. This makes it easy to interconnect systems.
LOW OPERATING NOISEBetween 50 and 62 dB, depending on the model. This is merely the sound of a premium dishwasher.
INDOOR AND OUTDOOR INSTALLATIONAll-weather canopy with IP44 standard and protective powder coating (models without radiator only indoor).
MULTIPLE-UNIT OPERATIONUp to 8 units can be controlled through one system controller for higher-power applications. High-efficiency operation on partial load is possible by controlling the number of units in operation.
REMOTE MONITORING SYSTEMOnline access to the CHP unit for information like operational data, operating condition and warnings.
FREE PISTON STIRLING ENGINE
The Base Specifications