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1 : // EnergyPlus, Copyright (c) 1996-2023, The Board of Trustees of the University of Illinois,
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47 :
48 : #ifndef AirTerminalUnit_hh_INCLUDED
49 : #define AirTerminalUnit_hh_INCLUDED
50 :
51 : // C++ Headers
52 : #include <string>
53 :
54 : // EnergyPlus Headers
55 : #include <EnergyPlus/Data/BaseData.hh>
56 : #include <EnergyPlus/EnergyPlus.hh>
57 :
58 : namespace EnergyPlus {
59 :
60 : // Forward declarations
61 : struct EnergyPlusData;
62 :
63 : // types of air terminal units, refactored from old DataDefineEquip
64 : enum AirTerminalUnitType
65 : {
66 : notYetDetermined,
67 : dualDuctConstVolume,
68 : dualDuctVAV,
69 : singleDuctVAVReheat,
70 : singleDuctConstVolReheat,
71 : singleDuctConstVolNoReheat,
72 : singleDuctVAVNoReheat,
73 : singleDuct_SeriesPIU_Reheat,
74 : singleDuct_ParallelPIU_Reheat,
75 : singleDuct_ConstVol_4PipeInduc,
76 : singleDuctVAVReheatVSFan,
77 : singleDuctCBVAVReheat,
78 : singleDuctCBVAVNoReheat,
79 : singleDuctConstVolCooledBeam,
80 : dualDuctVAVOutdoorAir,
81 : singleDuctUserDefined,
82 : singleDuctATMixer,
83 : singleDuctConstVolFourPipeBeam
84 : };
85 :
86 : // base class for all air distribution units. zone air terminals for connecting to central air handlers
87 30 : class AirTerminalUnit
88 : {
89 :
90 : public: // Methods
91 : virtual void simulate(EnergyPlusData &state,
92 : bool FirstHVACIteration, // TRUE if first HVAC iteration in time step
93 : Real64 &NonAirSysOutput // convective cooling by the beam system [W]
94 : ) = 0;
95 :
96 : virtual int getZoneIndex() = 0;
97 :
98 : virtual int getAirLoopNum() = 0;
99 :
100 : virtual Real64 getPrimAirDesignVolFlow() = 0;
101 :
102 : virtual int getTermUnitSizingIndex() = 0;
103 :
104 : protected: // Data
105 : AirTerminalUnitType terminalType = notYetDetermined; // Type of air distribution unit //Legacy For use during transition to OO
106 : std::string name; // name of unit
107 : std::string unitType; // type of unit = e.g. AirTerminal:SingleDuct:ConstantVolume:FourPipeBeam
108 : int aDUNum = 0; // index of this unit in the corresponding air distribution unit structure
109 : int airAvailSchedNum = 0; // index to schedule for pimary air availability
110 : bool airAvailable = false; // true if primary air is available
111 : Real64 vDotDesignPrimAir = 0.0; // Design primary air volume flow rate m3/s (autosizable)
112 : bool vDotDesignPrimAirWasAutosized = false; // true if user input for design air flow was autsized on input
113 : Real64 mDotDesignPrimAir = 0.0; // Design primary air mass flow rate kg/s
114 : int airInNodeNum = 0; // unit air inlet system node number, air enters into air terminal unit
115 : int airOutNodeNum = 0; // unit air outlet system node number, air enters into zone from air terminal
116 : int zoneIndex = 0; // zone index for this air terminal unit
117 : int zoneNodeIndex = 0; // index in node structure for the zone node for this air terminal
118 : int ctrlZoneInNodeIndex = 0; // which controlled zone inlet node number corresponds with this unit
119 : int airLoopNum = 0; // index to airloop that this terminal unit is connected to
120 : int termUnitSizingNum = 0; // index to TermUnitSizing, TermUnitFinalZoneSizing, and more for this air distribution unit
121 : }; // AirTerminalUnit
122 :
123 : } // namespace EnergyPlus
124 :
125 : #endif // AirTerminalUnit_hh_INCLUDED
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