HVACAPI

CoolingTower(; name, Tw, ΔTct)

Component: CoolingTower

States:

• qc(t): [kg/s] Cooling water mass flow
• Tci(t): [K] Water supply temperature of cooling water
• Tco(t): [K] Return water temperature
• ΔT(t): [K] Temperature difference between supply and return water

Parameters:

• Tw: [K] Water temperature
• ΔTct: [K] Temperature difference between water and air

Equations:

• qc ~ inlet.qm: [kg/s] Cooling water mass flow
• Tci ~ outlet.T: [K] Water supply temperature of cooling water
• Tco ~ inlet.T: [K] Return water temperature
• Tci ~ Tw + ΔTct: [K] Water temperature
• ΔT ~ Tco - Tci: [K] Temperature difference between supply and return water
• inlet.qm + outlet.qm ~ 0: [kg/s] Mass balance
• inlet.p ~ outlet.p: [Pa] Pressure balance

Arguments:

Connectors:

• inlet: Inlet of cooling tower
• outlet: Outlet of cooling tower

FanCoil(; name, D, Qf0, Tai0, Twi0, Tai, cp)

Component: FanCoil

States:

• Qf(t): [W] Actual heat transfer
• Twi(t): [K] Actual inlet water temperature
• Two(t): [K] Actual outlet water temperature

Arguments:

• D: [Vector{Float64}] Coefficient of fan coil
• Qf0: [W] Rated heat transfer
• Tai0: [K] Rated inlet air temperature
• Twi0: [K] Rated inlet water temperature
• Tai: [K] Inlet air temperature
• cp: [J/(kg·K)] Specific heat of water

Connectors:

• inlet: Inlet of fan coil
• outlet: Outlet of fan coil

FlowPort(; name, T0)

A pipe port(inlet or outlet) in an pipe network.

States:

• p(t): [Pa] The pressure at this port
• q(t): [m³/s] The volume flow passing through this port
• T(t): [K] The temperature at this port

Pump(; name, D, n0, ρ, g)

Component: CentrifugalPump

States:

• n(t): [rpm] Actual speed of pump
• qv(t): [m³/s] Actual volume flow rate
• H(t): [m] Actual head
• η(t): [-] Actual efficiency
• P(t): [W] Actual power

Parameters:

• D: [m] Diameter of pump
• n0: [rpm] Rated speed of pump
• ρ: [kg/m³] Density of liquid
• g: [m/s²] Gravitational acceleration

Arguments:

• name: Name of the component
• D: [m] Diameter of pump
• n0: [rpm] Rated speed of pump
• ρ: [kg/m³] Density of liquid
• g: [m/s²] Gravitational acceleration

Connectors:

• inlet: Inlet of pump
• outlet: Outlet of pump

SimplePipe(; name, R, T)

Component: SimplePipe(pipe with fixed friction factor f)

States:

Parameters:

• R: [Pa·s/m³] Friction factor

Arguments:

Connectors:

• inlet: Inlet of pipe
• outlet: Outlet of pipe

source(; name, qm, p, t0)

Component: Source

States: