From waste heat to value
Organic Rankine Cycle (ORC)
Poland’s first technology for converting
waste heat into electricity (without CO2).
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 entitled. "Development of two ORC micro power plant prototypes using waste heat".
POIR.01.01.01-00-0414/17 entitled. "Development of the first Polish prototype ORC power plant of medium power up to 300 kWel using waste heat from industrial processes".
What is the Organic Rankine Cycle (ORC)?
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.
Why invest in an ORC?
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.
Contact us to find out more about the possibilities of implementing ORC in your company or energy project.
Technology based on Marani's patent pending
for the invention "System in ORC technology".
Electricity generators designed and manufactured by the Institute of Electrical Drives and Machines KOMEL - Łukasiewicz Research Network in Sosnowiec.
Proprietary control system.
Turbine design based on Marani's patent pending invention 'Turbogenerator for use in ORC systems'.
Turbines manufactured by the Research and Development Centre for Pneumatics Elements and Systems in Kielce (a subsidiary of Marani Sp. z o.o.).
Marani ORC 30 (prototype)
Marani ORC 30 (implementation)
Application
Industrial heat
Waste heat
Gas engines
Diesel engines
Gas
District heating networks
Geothermal
Biomass
Marani ORC units
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.
low temperature
MARANI LT ORC
for heat sources from 70 C to 120 C
efficiency up to 8%
medium temperature
MARANI MT ORC
for heat sources from 120 C to 300 C
efficiency up to 15%
high-temperature
MARANI HT ORC
for heat sources between 300 C and 800 C
efficiency up to 20%
Characteristics of MARANI ORC technology
Energy efficiency assessment
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. 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.
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.
Economics
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.
Electricity system
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.
Environment
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.
Technological process
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.
CHP
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.
Image and value in business
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.
