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Content DescriptionIEC TR 63388:2021 introduces the widely used technical scheme of cogeneration (also known as combined heat and power (CHP)), and gives the corresponding cases. The technical schemes of cogeneration covered in this technical report can be divided into two categories. One is cogeneration based on steam turbine, which is generally applied in thermal power plants; The other is cogeneration based on other prime movers, such as fuel cell, micro gas turbine, internal combustion engine, Stirling engine, ORC, etc.This document gives some cases of cogeneration, mainly including: • CHP based on extraction turbine; • CHP based on back pressure turbine; • Low-vacuum heating mode; • LP cylinder steam bypassed heating mode; • CHP based on steam turbine with synchro-self-shift clutches; • Gas-steam combined cycle CHP; • Micro gas turbine CHP; • Stirling engine CHP; • Fuel cell CHP; and • ORC CHP. The characteristics, components and technical requirements of these technical schemes are introduced in this document. By collecting existing standards of CHP, this document also identifies the gaps of CHP standardization and put forward a roadmap for future CHP standards. This document is prepared based on limited expert resources. Thus, some cogeneration cases could not be covered in this document, such as: • Solar cogeneration; and • Internal combustion engine cogeneration. About IECThe IEC is a global, not-for-profit membership organization, whose work underpins quality infrastructure and international trade in electrical and electronic goods. The IEC facilitates technical innovation, affordable infrastructure development, efficient and sustainable energy access, smart urbanization and transportation systems, climate change mitigation, and increases the safety of people and the environment.
The IEC brings together ~170 countries and provides a global, neutral and independent standardization and conformity assessment platform for 30 000 experts globally. It administers 4 Conformity assessment systems whose members certify that devices, systems, installations, services and people work as required.
The IEC publishes around 10 000 IEC International Standards which together with conformity assessment provide the technical framework that allows governments to build national quality infrastructure and companies of all sizes to buy and sell consistently safe and reliable products in most countries of the world. IEC International Standards serve as the basis for risk and quality management and are used in testing and certification to verify that manufacturer promises are kept. |
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