Low Temperature Process Library

Overview
111 Available Units
Example Projects

LTP_Lib - Low Temperature Process Library

The Low Temperature Process Library has been designed for modeling low temperature energy conversion processes. It allows you to design and analyze Organic Rankine Cycles (ORC), Supercritical CO2 Cycles (sCO2) and Kalina Cycles. LTP_Lib contains models for both design and off-design analysis.

Working Fluids

The Low Temperature Process Library contains five groups of working fluids:

  • Organic working fluids
  • Ammonia-Water mixtures as working fluid
  • Heat transfer fluids (thermofluids) like thermo oils and salt mixtures
  • Water
  • Gaseous working fluids
Library Author
SimTech GmbH
Keywords
Organic Rankine Cycle, ORC, Kalina Cycle, Supercritical CO2
Version
6.6.18
First Published
7/2008
A_Condenser
condenser for NH3/H2O mixtures, water cooled
A_Condenser_a
condenser forNH3/H2O mixtures, air cooled, dry
A_Connector
connector for NH3/H2O mixtures to be used in closed loops
A_Flash
flash chamber for NH3/H2O mixtures
A_G_Htex
heat exchanger for transfer from NH3/H2O mixtures on hot side to gas on cold side
A_Htex
general purpose heat exchanger for NH3/H2O mixtures
A_Mixer
mixer for NH3/H2O mixtures
A_Pipe
pipe for NH3/H2O mixtures
A_Splitter
splitter for NH3/H2O mixtures
A_Sink
sink for a NH3/H2O stream
A_Source
source for a NH3/H2O stream
A_Turbine
turbine for NH3/H2O mixtures
A_T_Htex
heat exchanger for transfer from NH3/H2O mixture on hot side to a thermofluid on cold side
A_Valve
valve for NH3/H2O mixtures
A_W_Htex
heat exchanger for transfer from NH3/H2O mixture on hot side to water on cold side
A_Xprescription
prescription/calculation of the fluid quality for NH3/H2O mixtures
A_Pump
pump for NH3/H2O mixtures
gear
gears
generator
generator
G_Analyzer
gas analyzer gives detailed information on gas composition
G_A_Htex
heat exchanger for transfer from gas on hot side to NH3/H2O mixtures on cold side
G_Ambient_Sink
release of a gas stream at ambient pressure
G_Ambient_Source
source for an air stream at ambient conditions
G_Compressor
gas compressor
G_Condenser
gas condenser, water cooled
G_Connector
connector for gas streams to be used in closed loops
G_Htex
general purpose heat exchanger for gases
G_Heat_sink
heat sink for gas streams
G_Heat_source
heat source for gas streams
G_Mixer
mixer for gas streams
G_O_Htex
heat exchanger for transfer from gas on hot side to organic fluid on cold side
G_Pipe
pipe for gas streams
G_Sink
sink for a gas stream
G_Source
source for a gas stream
G_Splitter
splitter for gas streams
G_Stream_to_stream
transition piece to change from G_Streams to streams
G_Turbine
turbine for gaseous fluids
G_T_Htex
heat exchanger for transfer from gas on hot side to thermofluids on cold side
G_Valve
valve for gas
G_W_Htex
heat exchanger for transfer from gas on hot side to water on cold side
mech_loss
mechanical loss
motor
motor
optimization
optimization element
O_Boiler
simple boiler model for ORC fluids
O_Compressor
compressor for ORC fluids
O_Condenser
condenser for ORC fluids, water cooled
O_Condenser_a
condenser for ORC fluids, air cooled, dry
O_Connector
connector for ORC streams to be used in closed loops
O_Expander
expander for ORC fluids
O_G_Htex
heat exchanger for transfer from ORC fluid on hot side to gas on cold side
O_Htex
general purpose heat exchanger for ORC fluids
O_Mixer
mixer for ORC streams
O_Pipe
pipe for ORC fluids
O_Pump
pump for ORC fluids
O_Separator
vapour-liquid separator for ORC fluids
O_Splitter
splitter for ORC streams
O_Sink
sink for an ORC stream
O_Source
source for an ORC stream
O_Turbine
turbine for ORC fluids
O_T_Htex
heat exchanger for transfer from ORC fluid on hot side to thermofluid on cold side
O_Valve
valve for ORC fluid
O_W_Htex
heat exchanger for transfer from ORC fluid on hot side to water on cold side
O_Xprescription
prescription/calculation of vapor quality of an ORC fluid
stream_to_G_Stream
transition piece to change from streams to G_Streams
stream_to_W_Stream
transition piece to change from streams to W_Streams
T_A_Htex
heat exchanger for transfer from thermofluid on hot side to NH3/H2O mixture on cold side
T_Connector
connector for heat transfer fluids to be used in closed loops
T_G_Htex
heat exchanger for transfer from thermofluid on hot side to gas on cold side
T_Heat_sink
heat sink for heat transfer fluids
T_Heat_source
heat source for heat transfer fluids
T_Htex
general purpose heat exchanger for heat transfer fluids
T_Mixer
mixer for heat transfer fluid streams
T_O_Htex
heat exchanger for transfer from thermofluid on hot side to ORC fluids on cold side
T_Pipe
pipe for heat transfer fluids
T_Pump
pump for heat transfer fluids
T_Splitter
splitter for heat transfer fluid streams
T_Sink
sink for a heat transfer fluid stream
T_Source
source for a heat transfer fluids
T_Valve
valve for heat transfer fluids
T_W_Htex
heat exchanger for transfer from thermofluid on hot side to water on cold side
W_A_Htex
heat exchanger for transfer from water on hot side to NH3/H2O mixtures on cold side
W_Boiler
simple water/steam boiler model
W_Condenser_a
steam condenser, air cooled, dry
W_Connector
connector for water streams to be used in closed loops
W_Condenser
steam condenser, water cooled
W_Cooling_Tower_dry
dry cooling tower
W_Cooling_Tower_wet
wet cooling tower
W_Deaerator
direct mixing preheater a.k.a. deaerator
W_Drum
steam drum
W_G_Htex
heat exchanger for transfer from water on hot side to gas on cold side
W_Htex
general purpose heat exchanger, water on both sides
W_Heat_sink
heat sink for water streams
W_Heat_source
heat source for water streams
W_Mixer
mixer for water streams
W_O_Htex
heat exchanger for transfer from water on hot side to organic fluid on cold side
W_Pipe
pipe for water
W_Preheater
preheater for water/steam cycles
W_Pump
pump for water
W_Reheater
simple reheater model
W_Separator
separator splitting water into condensate and steam
W_Sink
sink for a water stream
W_Source
source for a water stream
W_Splitter
splitter for water streams
W_Stream_to_stream
transition piece to change from W_Streams to streams
W_Turbine
steam turbine
W_Turbine_end
steam turbine, end stage
W_T_Htex
heat exchanger for transfer from water on hot side to thermofluids on cold side
W_Valve
valve for water
W_Xprescription
prescription/calculation of steam quality
conditional_setting
free conditional equation to set selected variables
free_var
free variable
Carnot battery HP-ORC
The reversible combination of a heat pump and an organic rankine cycle process coupled via a thermal storage device forms a so-called Carnot battery. In this example both processes use the same working fluid and can share major process components as the heat exchangers.
Demo_KCS1D2r
This project has no description.
Demo_KCS34
This project has no description.
Demo_KCS34g3
This project has no description.
Demo_ORC_Cogeneration_Plant
This project has no description.
Demo_ORC_Plant_for_Waste_Heat_Recovery
This project has no description.
Demo_ORC_Recuperator_Air_Cooled
This project has no description.
Demo_ORC_Thermooil_Boiler
This project has no description.
Demo_ORC_basic
This project has no description.
Demo_ORC_with_Recuperator
This project has no description.
sCO2 Recompression Cycle
Supercritical CO2 cycle with split flow recompression and low and high temperature recuperation.
sCO2 Recuperated Cycle
Supercritical CO2 cycle with internal heat recuperation.
sCO2 Simple Brayton Cycle
The basic configuration of a closed Brayton cycle using supercritical CO2 as working fluid.