IEC 63277-2021 pdf free download – Binary power generation systems with capacity less than 100 kW – Performance test methods.
This document specifies the performance test methods for binary power generation systems.lt defines the normalized test conditions and estimates the power generation efficiency of binarypower generation systems.
lt specifies the binary power generation systems having heating medium of non-pressurized hotwater,with a maximum temperature less than 100 °C created by renewable energy or wastedheat in the industrial field and cold water as cooling medium.
lt is applied to binary power generation systems with electric power generation capacity of lessthan i0o kw.
This document specifies performance testing, the standard conditions and the test methods fordetermining the electric power output and power generation efficiency of binary powergeneration systems.
lt includes heating conditions (temperature, flow rate) and cooling conditions (temperature, flowrate).
The requirements of testing and rating contained in this document are based on the use ofmatched assemblies.
This document does not include binary power generation systems more than 100 kW in electricpower generation capacity.
The subject heating medium here is non-pressurized hot water with a temperature of less than100″c.
Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
Iso and lEC maintain terminological databases for use in standardization at the followingaddresses:
IEC Electropedia: available at http://www.electropedia.orgl
Iso Online browsing platform: available at http://www.iso.org/obp
3.1
binary power generation system
consists of five main components, i.e. an evaporator, a condenser, a working fluid pump, anexpander and a generator, and a system in which a working fluid having a low boiling point isheated and evaporated by hot water, and the expander is driven by the working fluid gas togenerate electricity
3.2
working fluid
medium used within the thermodynamic cycle that receives heat from the heat source via a heattransport medium and produces power by fluid expansion
3.3
heat source
supplies heat to drive the system
Note 1 to entry: This power generation system utlizes factory waste heat, hot spring water, geothermal heat andsolar heat as heat sources from which it extracts heat with hot water (heat transfer medium) and thereby heats theworking fluid through an evaporator to generate vapour.
3.4
cooling source
releases heat taken from the system by the cooling medium
Note 1 to entry: In this system,the working fluid is cooled by cold water(heat transfer medium) through heatexchanger (condenser) to generate a super cooled liquid; the heat received from the system is released into coolingsource of ground water, river water, the atmosphere, etc.
3.5
evaporator
heat exchanger that heats and evaporates working fluid liquid by using hot water
3.6
condenser
heat exchanger that cools and condenses working fluid gas by using cold water
3.7
working fluid pump
fluid machine for sending working fluid liquid by the action of pressure with mechanical energyfrom condenser to evaporator
3.8
expander
machine that generates power by expanding a high-pressure working medium (working fluidvapour) heated with an evaporator and thereby driving a generator
Note 1 to entry: More specifically，high-pressure medium vapour taken in from the expander’s inlet internallyexpands and then is discharged from the outlet port as low-pressure medium vapour; this process converts fuidenergy into mechanical power.
Note 2 to entry: Generally, expanders are categorized according to their expansion mechanism, into kinetic type(centrifugal, axial, etc.) and displacement type (reciprocating, rotary, scroll, screw,etc.), and are selected dependingon operating conditions and capacity range.
3.9
grid-connected inverter
module that converts high-frequency AC (Alternating Current) from a power generator into Dc(Direct Current), and then converts that DC into high-quality AC for connecting to power grid.IEC 63277 pdf download.