LCC Calculator - LCC Calculator baed on Eurovent

Temperature

°C

-50 to 60

Relative Humidity

%

1 to 100

Enable trace

Cross and counterflow plate heat exchanger with frost protection

qV1,j (exhaust flow)

m3/s

0.1 to 50

qV2,j (supply flow)

m3/s

0.1 to 50

tODA,j (outdoor temp)

deg C

-50 to 50

xODA,j (outdoor moisture)

kg/kg

0.0001 to 0.030

tETA,j (extract temp)

deg C

10 to 35

xETA,j (extract moisture)

kg/kg

0.001 to 0.025

tSUP,j (supply setpoint)

deg C

10 to 35

dtFAN1,j (exhaust fan temp rise)

deg C

0 to 5

dtFAN2,j (supply fan temp rise)

deg C

0 to 5

qV2,nom (nominal supply flow)

m3/s

0.1 to 50

eta_t (nominal efficiency)

-

0.1 to 0.99

Air velocity over HR

m/s

0.5 to 5.0

Design extract moisture (winter)

kg/kg

0.001 to 0.020

Design extract temp (winter)

deg C

15 to 30

PHE type

Preheater

Exhaust fan position

Enable trace

Condensation, hygroscopic, or sorption rotor with moisture recovery

qV1,j (exhaust flow)

m3/s

0.1 to 50

qV2,j (supply flow)

m3/s

0.1 to 50

tODA,j (outdoor temp)

deg C

-50 to 50

xODA,j (outdoor moisture)

kg/kg

0.0001 to 0.030

tETA,j (extract temp)

deg C

10 to 35

xETA,j (extract moisture)

kg/kg

0.001 to 0.025

tSUP,j (supply setpoint)

deg C

10 to 35

dtFAN1,j (exhaust fan temp rise)

deg C

0 to 5

dtFAN2,j (supply fan temp rise)

deg C

0 to 5

qV2,nom (nominal supply flow)

m3/s

0.1 to 50

eta_t (nominal temp efficiency)

-

0.1 to 0.99

eta_x (nominal humidity efficiency)

-

0.0 to 0.99

Air velocity over HR

m/s

0.5 to 5.0

Design extract moisture (winter)

kg/kg

0.001 to 0.020

Rotor drive power

kW

0.01 to 2.0

Rotor type

Exhaust fan position

Enable trace

Sensible heat recovery with circulation pump

qV1,j (exhaust flow)

m3/s

0.1 to 50

qV2,j (supply flow)

m3/s

0.1 to 50

tODA,j (outdoor temp)

deg C

-50 to 50

xODA,j (outdoor moisture)

kg/kg

0.0001 to 0.030

tETA,j (extract temp)

deg C

10 to 35

xETA,j (extract moisture)

kg/kg

0.001 to 0.025

tSUP,j (supply setpoint)

deg C

10 to 35

dtFAN1,j (exhaust fan temp rise)

deg C

0 to 5

dtFAN2,j (supply fan temp rise)

deg C

0 to 5

qV2,nom (nominal supply flow)

m3/s

0.1 to 50

eta_t (nominal efficiency)

-

0.1 to 0.99

Air velocity over HR

m/s

0.5 to 5.0

Design extract moisture (winter)

kg/kg

0.001 to 0.020

Design extract temp (winter)

deg C

15 to 30

RAC pump power

kW

0.01 to 5.0

Exhaust fan position

Enable trace

Water heating coil or electric heater

qV2,j (supply flow)

m3/s

0.1 to 50

tODA,j (outdoor temp)

deg C

-50 to 50

tSUP,j (supply setpoint)

deg C

10 to 35

dtFAN2,j (supply fan temp rise)

deg C

0 to 5

dtSH,j (steam hum temp rise)

deg C

0 to 3

t1,j (inlet temperature)

deg C

-30 to 40

x1,j (inlet moisture)

kg/kg

0.0001 to 0.025

Heater type

Enable trace

Temperature or moisture control mode with optional reheater

qV2,j (supply flow)

m3/s

0.1 to 50

tODA,j (outdoor temp)

deg C

-50 to 50

tSUP,j (supply setpoint)

deg C

10 to 35

xSUP,j (supply moisture setpoint)

kg/kg

0.001 to 0.025

dtFAN2,j (supply fan temp rise)

deg C

0 to 5

t1,j (inlet temperature)

deg C

-30 to 50

x1,j (inlet moisture)

kg/kg

0.0001 to 0.030

Control mode

Reheater type (annual totals only)

Enable trace

Adiabatic humidification with water pump

qV2,j (supply flow)

m3/s

0.1 to 50

xSUP,j (target moisture)

kg/kg

0.001 to 0.025

x1,j (inlet moisture)

kg/kg

0.0001 to 0.025

Pump nominal power

kW

0.01 to 5.0

Design outdoor moisture (winter)

kg/kg

0.0001 to 0.010

Water consumption factor

-

1.0 to 10.0

Enable trace

Electric, gas-fired, or central steam humidifier

qV2,j (supply flow)

m3/s

0.1 to 50

xSUP,j (target moisture)

kg/kg

0.001 to 0.025

x1,j (inlet moisture)

kg/kg

0.0001 to 0.025

Water consumption factor

-

1.0 to 10.0

Humidifier type

Enable trace

Indirect evaporative cooling via exhaust-side humidification + PHE

qV1,j (exhaust flow)

m3/s

0.1 to 50

qV2,j (supply flow)

m3/s

0.1 to 50

tODA,j (outdoor temp)

deg C

-50 to 50

xODA,j (outdoor moisture)

kg/kg

0.0001 to 0.030

tETA,j (extract temp)

deg C

10 to 35

xETA,j (extract moisture)

kg/kg

0.001 to 0.025

tSUP,j (supply setpoint)

deg C

10 to 35

dtFAN1,j (exhaust fan temp rise)

deg C

0 to 5

dtFAN2,j (supply fan temp rise)

deg C

0 to 5

qV2,nom (nominal supply flow)

m3/s

0.1 to 50

eta_t (HR efficiency)

-

0.1 to 0.99

Air velocity over HR

m/s

0.5 to 5.0

Design extract moisture (winter)

kg/kg

0.001 to 0.020

Design extract temp (winter)

deg C

15 to 30

Humidifier efficiency

-

0.1 to 0.99

Pump nominal power

kW

0.01 to 5.0

Water consumption factor

-

1.0 to 10.0

PHE type (for internal HR call)

Preheater (for internal HR call)

Exhaust fan position

Enable trace

Plate heat exchanger with mixing section (PHE only)

qV1,j (exhaust flow)

m3/s

0.1 to 50

qV2,j (supply flow)

m3/s

0.1 to 50

tODA,j (outdoor temp)

deg C

-50 to 50

xODA,j (outdoor moisture)

kg/kg

0.0001 to 0.030

tETA,j (extract temp)

deg C

10 to 35

xETA,j (extract moisture)

kg/kg

0.001 to 0.025

tSUP,j (supply setpoint)

deg C

10 to 35

dtFAN1,j (exhaust fan temp rise)

deg C

0 to 5

dtFAN2,j (supply fan temp rise)

deg C

0 to 5

eta_t (HR efficiency)

-

0.1 to 0.99

Air velocity over HR

m/s

0.5 to 5.0

Design extract moisture (winter)

kg/kg

0.001 to 0.020

Design extract temp (winter)

deg C

15 to 30

qV1,nom (nominal exhaust flow)

m3/s

0.1 to 50

qV2,nom (nominal supply flow)

m3/s

0.1 to 50

Min fresh air flow

m3/s

0.1 to 10

PHE type (for internal call)

Preheater (for internal call)

Exhaust fan position

Enable trace

Supply and exhaust fan with VSD motor efficiency model

qV1,j (exhaust flow)

m3/s

0 to 50

qV2,j (supply flow)

m3/s

0 to 50

DWO (dry/wet)

qV1,nom (nominal exhaust)

m3/s

0.1 to 50

qV2,nom (nominal supply)

m3/s

0.1 to 50

Motor rated power (exhaust)

kW

0.1 to 500

Motor rated power (supply)

kW

0.1 to 500

Motor type (exhaust)

Motor type (supply)

Working point condition

External dP exhaust

Pa

0 to 2000

Internal dP exhaust

Pa

0 to 2000

External dP supply

Pa

0 to 2000

Internal dP supply

Pa

0 to 2000

dP wet coil additional

Pa

0 to 500

Pel exhaust fan (nominal)

kW

0.1 to 500

Pel supply fan (nominal, dry)

kW

0.1 to 500

Pel supply fan (nominal, wet)

kW

0.1 to 500

Enable trace

Configuration

AHU Configuration

Heat Recovery Type

Weather Location

AHU Parameters

Air Flow

qV1,nom (exhaust)

m3/s

qV2,nom (supply)

m3/s

Heat Recovery

eta_t (temp efficiency)

eta_x (humidity efficiency, ROT)

UhrNom (air velocity)

m/s

EFP (exhaust fan position)

PHE type

Preheater

Rotor type (ROT)

PeDrv (rotor drive power)

kW

PelPumpRac (RAC pump)

kW

Design Conditions (freeze protection & humidifier)

xETA_DW

kg/kg

tETA_DW

deg C

xODA_DW

kg/kg

F (water factor)

Heating & Cooling

Heater type

Cooling mode (CMC)

Reheater type

Cooling source

Humidification

Steam humidifier type

PelPumpNom (HUM-AD pump)

kW

EtaHNom (ADC humidifier eff)

Fans

Pmot exhaust

kW

Pmot supply

kW

MT1 (motor type exhaust)

MT2 (motor type supply)

WPC (working point cond.)

Pext1 nom

Pa

Pint1 nom

Pa

Pext2 nom

Pa

Pint2 nom

Pa

dPc (wet coil)

Pa

Pel FAN1 nom

kW

Pel FAN2 nom (dry)

kW

Pel FAN2W nom (wet)

kW

Mixing Section (Configs 10-15)

QvOdaMin (min fresh air)

m3/s

Temperature/Moisture Scenarios

Supply temperature = f(outdoor temp): 4 breakpoints

x1 (outdoor)

y1 (supply)

x2

y2

x3

y3

x4

y4

Extract temperature = f(outdoor temp): 3 breakpoints

x1

y1

x2

y2

x3

y3

Supply moisture = f(outdoor moisture): 4 breakpoints

x1 (outdoor xODA)

y1 (supply xSUP)

x2

y2

x3

y3

x4

y4

Internal moisture load

g/kg

Operating Schedule

Select a preset schedule. The 7x24 grid is filled automatically.

Economic Parameters

Lifetime

years

Discount rate

Price dev. rate (PDRE)

Investment cost

EUR

Electricity price

EUR/kWh

Heating price

EUR/kWh

Steam price

EUR/kWh

Cooling price

EUR/kWh

Water price

EUR/kg

Disposal cost

EUR

Residual value fraction

Trace hour: (1-8760, 0=off)

Psychrometric Calculator

Component: Plate Heat Exchanger (PHE)

Component: Rotary Heat Exchanger (ROT)

Component: Run-Around Coils (RAC)

Component: Heating Coil (H)

Component: Cooling Coil (CC)

Component: Adiabatic Humidifier (HUM-AD)

Component: Steam Humidifier (HUM-ST)

Component: Adiabatic Cooling (ADC)

Component: Heat Recovery + Mixing (HRS+MIX)

Component: Fan Calculation (FAN)

Full LCC Calculation

Configuration

AHU Parameters

Temperature/Moisture Scenarios

Operating Schedule

Economic Parameters