LIVEdataset releasetasks 552models 18last submission … · built …
task library
built templateheat-exchanger-designwith-tool

Lmtd Calculation

Calculates heat exchanger LMTD from hot and cold terminal temperatures for counterflow or parallel flow arrangements. The template applies an explicit correction factor, calculates corrected mean temperature difference, and estimates heat duty from U, area, and corrected MTD.

inputs

8 fields

context

2 archetypes

engine

with-tool

outputs

6 scored fields

contract fields

Parameter Map

8 inputs to 6 scored outputs

  • hot_inlet_c

    float

    Hot fluid inlet temperature

    30 to 400C

  • hot_outlet_c

    float

    Hot fluid outlet temperature

    20 to 350C

  • cold_inlet_c

    float

    Cold fluid inlet temperature

    -10 to 200C

  • cold_outlet_c

    float

    Cold fluid outlet temperature

    0 to 250C

  • overall_u_kw_m2_c

    float

    Overall heat transfer coefficient

    0.02 to 5kW/m2.C

  • heat_transfer_area_m2

    float

    Heat transfer surface area

    1 to 10000m2

  • correction_factor

    float

    LMTD correction factor

    0.5 to 1

  • flow_arrangement

    enum

    Heat exchanger flow arrangement

    counterflowparallel
delta_t1_ctol 0.03

First terminal temperature difference

delta_t2_ctol 0.03

Second terminal temperature difference

lmtd_ctol 0.03

Log mean temperature difference

corrected_mtd_ctol 0.03

Corrected mean temperature difference

heat_duty_kwtol 0.03

Estimated heat duty

minimum_approach_ctol 0.03

Minimum terminal temperature approach

visibility contract

Difficulty Ladder

all_giveneasy

All parameters given for a counterflow process cooler

all fields visible
all_givenmedium

All parameters given across common heat exchanger duties

all fields visible
all_givenhard

All parameters given with explicit correction factor and arrangement

all fields visible

scenario bands

Archetype Atlas

process_cooler

2 contexts

Process liquid cooler with counterflow exchanger

hot_inlet_c120 to 180
hot_outlet_c75 to 100
cold_inlet_c10 to 35
cold_outlet_c40 to 70

industrial-process-cooler / plant-utility-exchanger

hot_water_heat_exchanger

2 contexts

Hot water heat exchanger for building or process service

hot_inlet_c95 to 120
hot_outlet_c75 to 85
cold_inlet_c5 to 30
cold_outlet_c35 to 65

district-heating-skid / building-services-heat-exchanger

rendered task

Generation Preview

industrial-process-cooler-process-cooler-preview

difficulty
hard
visibility
all_given
archetype
process_cooler
site context
industrial-process-cooler
instruction excerptlmtd-calculation_calc.py

visible fields

  • hot_inlet_c120 to 180 C
  • hot_outlet_c75 to 100 C
  • cold_inlet_c10 to 35 C
  • cold_outlet_c40 to 70 C
  • overall_u_kw_m2_c0.2 to 1.5 kW/m2.C
  • heat_transfer_area_m220 to 800 m2
  • correction_factor0.75 to 1
  • flow_arrangementcounterflow

withheld schema

delta_t1_cdelta_t2_clmtd_ccorrected_mtd_cheat_duty_kwminimum_approach_c
Process liquid cooler with counterflow exchanger. industrial-process-cooler. Required outputs: delta_t1_c, delta_t2_c, lmtd_c, corrected_mtd_c, heat_duty_kw, minimum_approach_c