{"id":296,"date":"2024-01-12T17:32:36","date_gmt":"2024-01-12T16:32:36","guid":{"rendered":"http:\/\/pl.marani.pl\/?page_id=296"},"modified":"2025-07-08T08:13:01","modified_gmt":"2025-07-08T06:13:01","slug":"mikrosilownie-orc-organiczny-cykl-rankine-a","status":"publish","type":"page","link":"https:\/\/www.marani.pl\/en\/mikrosilownie-orc-organiczny-cykl-rankine-a\/","title":{"rendered":"ORC micro power plants"},"content":{"rendered":"
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Home<\/a><\/span><\/span><\/p>\t

ORC micro power plants<\/h2>\t\n<\/div>\n<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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From waste heat to value<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Organic Rankine Cycle (ORC)<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Poland\u2019s first technology for converting
waste heat into electricity (without CO2<\/sub>).<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Proprietary solution resulting from R&D work in cooperation with the Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Gdansk, as part of two completed projects:
POIR.01.01.01-00-0512\/16<\/strong> entitled. \"Development of two ORC micro power plant prototypes using waste heat\".
POIR.01.01.01-00-0414\/17<\/strong> entitled. \"Development of the first Polish prototype ORC power plant of medium power up to 300 kWel using waste heat from industrial processes\".<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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What is the Organic Rankine Cycle (ORC)?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The Organic Rankine Cycle (ORC) is an innovative technology used to convert thermal energy into electricity. Unlike the traditional Rankine cycle, ORC uses organic working fluids instead of water, which allows for the efficient use of low-temperature heat sources. This makes ORC ideal for a variety of applications in power generation, industries and renewable energy production.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Why invest in an ORC?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Investing in the Organic Rankine Cycle is a step towards a sustainable future. With its efficiency, versatility and eco-friendliness, ORC is the technology of the future, helping to reduce CO2 emissions and promote the use of renewable energy sources. For companies and institutions seeking to increase energy efficiency and reduce their carbon footprint, ORC is the perfect solution.<\/p>

Contact us to find out more about the possibilities of implementing ORC in your company or energy project.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Technology based on Marani's patent pending
for the invention \"System in ORC technology\".<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Electricity generators designed and manufactured by the Institute of Electrical Drives and Machines KOMEL - \u0141ukasiewicz Research Network in Sosnowiec.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Proprietary control system.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Turbine design based on Marani's patent pending invention 'Turbogenerator for use in ORC systems'.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Turbines manufactured by the Research and Development Centre for Pneumatics Elements and Systems in Kielce (a subsidiary of Marani Sp. z o.o.).<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Marani ORC 30 (prototype)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Marani ORC 30 (implementation)<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Application<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Industrial heat<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tIn the case of waste heat recovery, the carrier can be process exhaust, process steam, hot process water, hot effluent or other media that are waste in the process or part of the process itself.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Waste heat<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tMarani ORC power plants can be combined with a boiler for the thermal utilisation of waste. The flue gas, which is the carrier of heat energy in this process and also a waste product, can be used as a heat source for the ORC plant.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Gas engines<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tMarani ORC power plants can be operated in conjunction with an internal combustion engine fuelled by natural gas. The exhaust gas from the gas engine, which is the carrier of heat energy in the process and also a waste product, can be used as a heat source for the ORC plant. \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Diesel engines<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tMarani ORC power plants can be combined with a diesel engine, which works, for example, as a drive for an electric generator or to drive other machinery or processes. The exhaust gas from the engine can be used as a heat source for the ORC plant.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Gas<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tMarani ORC power plants can work with an internal combustion engine fuelled by mine gas from mine de-methanation and corridor excavations, which works as a drive motor for an electric generator or air compressor.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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District heating networks<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tMarani ORC power plants and refrigeration systems can interface with district heating networks at generating facilities such as district heating and CHP plants, industrial plants.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Geothermal<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tMarani ORC power plants can work with hydrothermal geothermal sources. Hot water or steam, or a mixture of water and steam, is the thermal energy carrier for this process and can be used as the heat source for the ORC plant.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Biomass<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\t\t\t\tMarani ORC power plants can work with boilers and district heating plants equipped with biomass boilers. The flue gas from the biomass boiler is the carrier of heat energy in the process and, at the same time, the waste can be used as a heat source for the ORC plant.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Marani ORC units<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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MARANI is a supplier of complete ORC power plants, designed, optimised and tailored to individual customer conditions and needs. We offer modules in the electrical power range from 10 kW to 500 kW. The technology offered allows for the parallel operation of the modules or the installation of several turbogenerators within one power plant.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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low temperature<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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MARANI LT ORC<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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for heat sources from 70 C to 120 C
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medium temperature<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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MARANI MT ORC<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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for heat sources from 120 C to 300 C
efficiency up to 15%<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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high-temperature<\/h4>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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MARANI HT ORC<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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for heat sources between 300 C and 800 C
efficiency up to 20%<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Characteristics of MARANI ORC technology<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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One of the key features distinguishing the ORC modules of the MARANI Company is the flexibility of the offered technology, ORC units are each time adapted and optimised to the characteristics of the heat source and the specific requirements of the client. The offer is comprehensive, i.e. at the customer's request, it also includes the design and construction of the necessary intermediate circuits and associated installations. The construction and operation of ORC power plants can also be outsourced.<\/div><\/div><\/div><\/div>
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Designed and built in accordance with the regulations and requirements of EU standards:
\n\n- Pressure Equipment Directive (PED 2014\/68\/EU)
\n- Machinery Directive (2006\/42\/EC)
\n- EMC Electromagnetic Compatibility Directive (2014\/30\/EU)
\n- LVD Low Voltage Directive (2014\/35\/EU)
\n- Noise emission (EN ISO 3744:2011)
\n- NC RfG certificate for power converters<\/div><\/div><\/div><\/div>
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We have our own certified construction technology and the production process takes place in accordance with the applicable standards and under the supervision of a notified body (UDT, T\u00dcV Rheinland Poland).<\/div><\/div><\/div><\/div>
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High efficiency, flexibility and reliability through process optimisation at every stage of design from the thermodynamic model to the mechanical design of the unit.<\/div><\/div><\/div><\/div>
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Modern HFO\/HFC and natural agents such as hydrocarbons with minimal environmental impact.<\/div><\/div><\/div><\/div>
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Infinitely variable and a guarantee of safe operation and electricity performance through the use of NC RfG-certified high-frequency inverters.<\/div><\/div><\/div><\/div>
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High-speed turbine-generators - the heart of the system is a single-stage axial turbine, with high efficiency and high power density.<\/div><\/div><\/div><\/div>
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Synchronous generator mounted on a common shaft with the turbine in designs from 10 kWe to 500 kWe, cooled by a water jacket.<\/div><\/div><\/div><\/div>
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Oil-free and hermetic design of the turbine-generator, which ensures no leakage of the working fluid thanks to the elimination of design solutions known from classic turbine-generator designs - reduction gear and mechanical coupling, external seals.<\/div><\/div><\/div><\/div>
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The use of oil-free fluid-lubricated working fluid bearing technology eliminates the problem of working fluid contamination with lubricating oil, which ensures stable thermodynamic characteristics of the circuit over the entire life of the unit, reduces service needs and significantly reduces waste in the form of used working fluids, thus reducing long-term operating costs.<\/div><\/div><\/div><\/div>
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Polish technology developed in cooperation with national research centres and suppliers of key components such as the generator and bearings. The solution is a pioneering technology on a national scale and the turbine-generator design solutions used are unique compared to the competition in Europe and the world.<\/div><\/div><\/div><\/div>
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Full integration and control of the deployed ORC systems from the Marani24 platform - a system for remote control, monitoring and archiving of unit operating parameters, with multi-level access via a web browser for maintenance, service technicians and end users alike.<\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
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Benefits of waste heat utilization for generation of cooling capacity<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The use of waste heat to generate electricity has a number of benefits for both the environment and the economy::<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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The Energy Efficiency Act of 20 May 2016. (Journal of Laws, item 831) requires companies classified as a large enterprise to examine their energy efficiency levels by performing an energy audit periodically - every four years. The utilisation of waste heat to produce electricity is crucial when assessing the energy efficiency factor for the process and the entire unit as a plant.\u00a0\u00a0<\/span>Any consumer of energy in the form of electricity or chemical energy contained in, for example, fuel burned in a process can be characterised in terms of the efficiency of the process for which that energy is consumed. Generating additional electricity from waste heat energy from one's own process is one method of increasing energy efficiency while reducing the so-called carbon footprint of the process.<\/p>

In addition, the production of electricity from waste heat has a number of additional aspects that have a positive impact not only on the energy intensity rating of the process, but also on the cost intensity of the process itself, on the electricity system, as well as on the environment and on the business image.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Electricity is a medium that is consumed throughout the year, in-house generation of electricity allows the introduction of additional savings resulting from the purchase of this energy on the market. The electricity produced can be fed into the grid, which is the basis for reducing the cost of purchasing energy from the local distribution network. In exceptional cases, island operation is possible, in which the electricity produced is reused on site. In this case, it is also possible to reduce the costs associated with the purchase of electricity.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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In addition to the economic aspects, the use of waste heat has a positive impact on the national electricity system, the decentralisation and dispersal of electricity generation contributes to energy security and local relief of the grid or system.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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The production of electricity from waste heat, which was normally lost to the atmosphere through emissions, has a positive impact on the environment because it takes place without burning additional fuel, so it is electricity put into circulation without the additional carbon footprint created when it is generated.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Using waste heat or process heat in a process where it is necessary to lower the temperature of a medium also contributes to optimising the process itself by eliminating additional systems that only work to lower the temperature. In this case, there is an additional process and economic advantage in that part of the process, i.e. the cooling of the medium or working fluid and the generation of electricity, is carried out simultaneously.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Combined heat and power (CHP) is also possible, in which, in addition to electricity, we use part of the heat energy from the lower temperature level (condenser heat) for further internal processes and heating purposes or as a drive for cold production systems.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Energy efficiency, waste heat recovery and self-generation also have a positive impact on the very assessment of the entrepreneur's attractiveness, maturity and technological and energy awareness. It adds value to the assessment of the enterprise by potential investors, investment financiers and those distributing funds for upgrades under support programmes, or by end customers themselves. The implementation of sustainable activities contributes to brand value and market recognition, and is also an element of image competition.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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