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IZXFER izLinkedFlowMult re support of models using zone multiplier(s) #403

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Merged
merged 5 commits into from
Jun 13, 2023
Merged

IZXFER izLinkedFlowMult re support of models using zone multiplier(s) #403

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b544a6b
iz_linkedFlowMult initial implementation
chipbarnaby Jun 1, 2023
10cf7e4
Stub documentation for izLinkedFlowMult
chipbarnaby Jun 1, 2023
65b86fe
improve comments
chipbarnaby Jun 12, 2023
ca862ee
Merge branch 'main' into flowmult
chipbarnaby Jun 12, 2023
f2bcc7c
Completed IZXFER izLinkedFlowMult documentation
chipbarnaby Jun 12, 2023
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16 changes: 16 additions & 0 deletions doc/src/records/izxfer.md
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Expand Up @@ -103,6 +103,22 @@ Name of DOAS where air is supplied from (**izVfMin** > 0), or exhausting to (**i
required: "when izNVType = AIRNETDOAS",
variability: "constant") %>

**izLinkedFlowMult=*float***

Specifies a multiplier applied to air flow to/from any associated DOAS. This supports use of a single modeled zone to represent multiple actual zones while preserving the total DOAS air flow and energy consumption.

For example, consider a DOAS-linked IZXFER with izVfMin = 100 and izLinkedFlowMult = 5. The zone specified by izZn1 receives 100 cfm while the DOAS specified by izDOAS is modeled as if the supply flow is 500 cfm. Thus the DOAS behavior (fan energy use etc.) approximates that of a DOAS serving 5 zones, but only one zone is simulated.

Note izLinkedFlowMult has no effect on the air flow to or from the zone specified by izZn1.

<%= member_table(
units: "--",
legal_range: "*x* $\\gt$ 0",
default: "1",
required: "No",
variability: "constant") %>


Give izHConst for a conductive transfer between zones. Give izNVType other than NONE and the following variables for a convective (air) transfer between the zones or between a zone and outdoors. Both may be given if desired. Not known to work properly as of July 2011

**izHConst=*float***
Expand Down
6 changes: 6 additions & 0 deletions src/CNRECS.DEF
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Expand Up @@ -3033,6 +3033,12 @@ RECORD IZXRAT "izXfer" *RAT // interzone heat transfers: conductive and/or vent.
*s AFLOW iz_vfMin // min vent flow rate, cfm (for fixed flow types)
// (*net* supply flow for _ANHERV)
*s AFLOW iz_vfMax // max vent flow rate, cfm (for fixed flow types)
*i FLOAT_GZ iz_linkedFlowMult // multiplier for flow to/from linked zone or DOAS or ...
// applied to flow seen by "other" zone or device (but not this zone)
// supports zone multiplier schemes
// initially implemented for DOAS only, 6-1-2023


*s FRAC iz_ASEF // apparent sensible effectiveness (for _ANHERV)
*s FRAC iz_LEF // latent effectiveness (for _ANHERV)
*s FRAC iz_SRE // HVI sensible recovery efficiency (for _ANHERV)
Expand Down
78 changes: 33 additions & 45 deletions src/cgcomp.cpp
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Expand Up @@ -1016,7 +1016,7 @@ RC DOAS::oa_CkfDOAS() // input checks


return rc;
}
} // DOAS::oa_CkfDOAS
//-----------------------------------------------------------------------------
RC DOAS::oa_Setup(DOAS* iRat)
{
Expand All @@ -1035,18 +1035,15 @@ RC DOAS::oa_Setup(DOAS* iRat)
float exhFanVfDemand = 0.f;

IZXRAT* izx;
RLUP( IzxR, izx)
RLUPC( IzxR, izx, izx->iz_doas == ss)
{
if (izx->iz_IsDOAS() && izx->iz_doas == ss)
if (izx->iz_vfMin > 0.f)
{
if (izx->iz_vfMin > 0.f)
{
supFanVfDemand += izx->iz_vfMin;
}
else
{
exhFanVfDemand -= izx->iz_vfMin;
}
supFanVfDemand += izx->iz_vfMin * izx->iz_linkedFlowMult;
}
else
{
exhFanVfDemand -= izx->iz_vfMin * izx->iz_linkedFlowMult;
}
}

Expand All @@ -1071,14 +1068,10 @@ RC DOAS::oa_Setup(DOAS* iRat)

// Adjust IZXFER flows
IZXRAT* izx;
RLUP( IzxR, izx)
{
if (izx->iz_IsDOAS() && izx->iz_doas == ss)
RLUPC(IzxR, izx, izx->iz_doas == ss)
{ if (izx->iz_vfMin > 0.f)
{
if (izx->iz_vfMin > 0.f)
{
izx->iz_vfMin *= supFlowRatio;
}
izx->iz_vfMin *= supFlowRatio;
}
}
}
Expand All @@ -1099,14 +1092,10 @@ RC DOAS::oa_Setup(DOAS* iRat)

// Adjust IZXFER flows
IZXRAT* izx;
RLUP( IzxR, izx)
{
if (izx->iz_IsDOAS() && izx->iz_doas == ss)
RLUPC( IzxR, izx, izx->iz_doas == ss)
{ if (izx->iz_vfMin < 0.f)
{
if (izx->iz_vfMin < 0.f)
{
izx->iz_vfMin *= exhFlowRatio;
}
izx->iz_vfMin *= exhFlowRatio;
}
}
}
Expand Down Expand Up @@ -1159,29 +1148,27 @@ RC DOAS::oa_BegSubhr()
{
RC rc = RCOK;
// Get total air flow rates and calculate mixed exhaust air state
oa_supAF.af_amf = 0.;
oa_exhAF.af_amf = 0.;
float supVf = 0.f;
float exhVf = 0.f;
oa_supAF.af_Init();
oa_exhAF.af_Init();
float supVf = 0.f; // total supply flow provided by this DOAS, cfm
// float exhVf = 0.f; // total exhaust flow for this DOAS, cfm
// not used, activate if needed
IZXRAT* izx;
RLUP( IzxR, izx)
RLUPC(IzxR, izx, izx->iz_doas == ss)
{
if (izx->iz_IsDOAS() && izx->iz_doas == ss)
if (izx->iz_vfMin > 0.f)
{
if (izx->iz_vfMin > 0.f)
{
supVf += izx->iz_vfMin;
}
else
{
ZNR* zpx = ZrB.GetAt( izx->iz_zi1);
AIRSTATE zoneAir;
zpx->zn_GetAirStateLs( zoneAir);
float rhoX = zpx->zn_rho0ls;
exhVf -= izx->iz_vfMin;
AIRFLOW zoneExhAF(-izx->iz_vfMin * rhoX * 60.f, zoneAir);
oa_exhAF.af_Mix(zoneExhAF);
}
supVf += izx->iz_vfMin * izx->iz_linkedFlowMult;
}
else
{
ZNR* zpx = ZrB.GetAt( izx->iz_zi1);
AIRSTATE zoneAir;
zpx->zn_GetAirStateLs( zoneAir);
float rhoX = zpx->zn_rho0ls;
// exhVf -= izx->iz_vfMin * izx->iz_linkedFlowMult; activate if needed
AIRFLOW zoneExhAF(-izx->iz_vfMin * izx->iz_linkedFlowMult * rhoX * 60.f, zoneAir);
oa_exhAF.af_Mix(zoneExhAF);
}
}
oa_supAF.af_amf = supVf * Top.tp_rhoMoistOSh * 60.f;
Expand Down Expand Up @@ -1625,6 +1612,7 @@ x }
rc |= require(when, IZXRAT_DOAS);
}
break;

case C_IZNVTYCH_ANIZFLOW:
case C_IZNVTYCH_ANEXTFLOW:
rc |= disallowN("when izNVType is flow AIRNET",
Expand Down
1 change: 1 addition & 0 deletions src/cncult.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1459,6 +1459,7 @@ CULT( "izDOAS", DAT, IZXRAT_DOAS, 0, 0, VEOI, TYREF, &OAiB, 0.f,
CULT( "izHConst", DAT, IZXRAT_UA, 0, 0, VHRLY, TYFL, 0, 0.f, N, N),
CULT( "izNVType", DAT, IZXRAT_NVCNTRL,0, 0, VEOI, TYCH, 0, C_IZNVTYCH_NONE, N, N),
CULT( "izAFCat", DAT, IZXRAT_AFCATI, 0, 0, VEOI, TYCH, 0, 0, N, N),
CULT( "izLinkedFlowMult",DAT,IZXRAT_LINKEDFLOWMULT,0,0,VEOI, TYFL, 0, 1.f, N, N),
CULT( "izALo", DAT, IZXRAT_A1, 0, 0, VHRLY, TYFL, 0, 0.f, N, N),
CULT( "izAHi", DAT, IZXRAT_A2, 0, 0, VHRLY, TYFL, 0, 0.f, N, N),
CULT( "izL1", DAT, IZXRAT_L1, 0, 0, VEOI, TYFL, 0, 0.f, N, N),
Expand Down
87 changes: 44 additions & 43 deletions test/ref/ASHPPKGROOM.REP
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Original file line number Diff line number Diff line change
Expand Up @@ -529,16 +529,16 @@ Top
repBotM 6 129 0 0 1 1 nz 0 0 0
repTestPfx 6 130 0 0 1 4 0 0 0 0
ck5aa5 6 285 4 0 0 1 nz 0 0 0
material 5 0 16400 0 0 0 material 0 0 487 0
construction 5 0 16400 0 0 0 construction 0 0 476 0
foundation 5 0 16 0 0 0 foundation 0 0 464 0
glazeType 5 0 16 0 0 0 glazeType 0 0 45d 0
zone 5 0 16400 0 0 0 zone 0 0 338 0
izXfer 5 0 16384 0 0 0 izXfer 0 0 2db 0
material 5 0 16400 0 0 0 material 0 0 488 0
construction 5 0 16400 0 0 0 construction 0 0 477 0
foundation 5 0 16 0 0 0 foundation 0 0 465 0
glazeType 5 0 16 0 0 0 glazeType 0 0 45e 0
zone 5 0 16400 0 0 0 zone 0 0 339 0
izXfer 5 0 16384 0 0 0 izXfer 0 0 2dc 0
afmeter 5 0 16 0 0 0 AFMETER 0 0 23d 0
loadmeter 5 0 16 0 0 0 LOADMETER 0 0 23a 0
rsys 5 0 16400 0 0 0 RSYS 0 0 29f 0
doas 5 0 16 0 0 0 doas 0 0 30b 0
doas 5 0 16 0 0 0 doas 0 0 30c 0
dhwdayuse 5 0 16 0 0 0 DHWDayUse 0 0 229 0
dhwmeter 5 0 16 0 0 0 DHWMETER 0 0 240 0
dhwsys 5 0 0 0 0 0 DHWSYS 0 0 1a7 0
Expand All @@ -547,15 +547,15 @@ Top
battery 5 0 0 0 0 0 Battery 0 0 12b 0
shadex 5 0 0 0 0 0 SHADEX 0 0 11c 0
airHandler 5 0 16 0 0 0 airHandler 0 0 117 0
meter 5 0 16400 0 0 0 meter 0 0 3a1 0
gain 5 0 32 0 0 0 gain 0 0 39a 0
reportCol 5 0 32 0 0 0 reportCol 0 0 38a 0
exportCol 5 0 32 0 0 0 exportCol 0 0 380 0
report 5 0 32 0 0 0 report 0 0 377 0
export 5 0 32 0 0 0 export 0 0 361 0
reportfile 5 0 0 0 0 0 reportFile 0 0 34c 0
exportfile 5 0 0 0 0 0 exportFile 0 0 345 0
importfile 5 0 16 0 0 0 importFile 0 0 33f 0
meter 5 0 16400 0 0 0 meter 0 0 3a2 0
gain 5 0 32 0 0 0 gain 0 0 39b 0
reportCol 5 0 32 0 0 0 reportCol 0 0 38b 0
exportCol 5 0 32 0 0 0 exportCol 0 0 381 0
report 5 0 32 0 0 0 report 0 0 378 0
export 5 0 32 0 0 0 export 0 0 362 0
reportfile 5 0 0 0 0 0 reportFile 0 0 34d 0
exportfile 5 0 0 0 0 0 exportFile 0 0 346 0
importfile 5 0 16 0 0 0 importFile 0 0 340 0
heatPlant 5 0 16 0 0 0 heatPlant 0 0 7a 0
coolPlant 5 0 16 0 0 0 coolPlant 0 0 4b 0
towerPlant 5 0 16 0 0 0 towerPlant 0 0 3d 0
Expand Down Expand Up @@ -927,6 +927,7 @@ izXfer Parent: Top
izHConst 6 5 0 0 739 2 0 0 0 0
izNVType 6 6 16384 0 1 16 nz 0 0 0
izAFCat 6 7 0 0 1 16 0 0 0 0
izLinkedFlowMult 6 21 0 0 1 2 0 1 0 0
izALo 6 10 16384 0 739 2 0 0 0 0
izAHi 6 11 0 0 739 2 0 0 0 0
izL1 6 12 0 0 1 2 0 0 0 0
Expand All @@ -938,25 +939,25 @@ izXfer Parent: Top
izExp 6 17 16384 0 1 2 0 0.5 0 0
izVfMin 6 19 0 0 1763 2 0 0 0 0
izVfMax 6 20 0 0 1763 2 0 0 0 0
izASEF 6 21 0 0 1763 2 0 0 0 0
izLEF 6 22 0 0 1763 2 0 0 0 0
izSRE 6 23 0 0 1763 2 0 0 0 0
izASRE 6 24 0 0 1763 2 0 0 0 0
izRVFanHeatF 6 25 0 0 1763 2 0 0 0 0
izVfExhRat 6 26 0 0 1763 2 0 1 0 0
izEATR 6 27 0 0 1763 2 0 0 0 0
izFanVfDs 6 29 0 0 1 2 0 0 0 0
izFanPress 6 33 0 0 1 2 0 0.3 0 0
izFanEff 6 34 0 0 1 2 0 0.08 0 0
izFanShaftBhp 6 35 0 0 1 2 0 0 0 0
izFanElecPwr 6 36 0 0 1 2 0 0 0 0
izFanMtr 6 46 0 0 1 8192 meter 0 0 0 0
izFanEndUse 6 47 0 0 1 16 nz 0 0 0
izFanType 6 28 4 0 0 16 nz 0 0 0
izFanVfMxF 6 32 4 0 0 2 0 1 0 0
izFanMotPos 6 39 4 0 0 16 nz 0 0 0
izFanCurvePy 6 40 128 0 1 2 0 0 nz 0
izFanMotEff 6 38 4 0 0 2 0 1 0 0
izASEF 6 22 0 0 1763 2 0 0 0 0
izLEF 6 23 0 0 1763 2 0 0 0 0
izSRE 6 24 0 0 1763 2 0 0 0 0
izASRE 6 25 0 0 1763 2 0 0 0 0
izRVFanHeatF 6 26 0 0 1763 2 0 0 0 0
izVfExhRat 6 27 0 0 1763 2 0 1 0 0
izEATR 6 28 0 0 1763 2 0 0 0 0
izFanVfDs 6 30 0 0 1 2 0 0 0 0
izFanPress 6 34 0 0 1 2 0 0.3 0 0
izFanEff 6 35 0 0 1 2 0 0.08 0 0
izFanShaftBhp 6 36 0 0 1 2 0 0 0 0
izFanElecPwr 6 37 0 0 1 2 0 0 0 0
izFanMtr 6 47 0 0 1 8192 meter 0 0 0 0
izFanEndUse 6 48 0 0 1 16 nz 0 0 0
izFanType 6 29 4 0 0 16 nz 0 0 0
izFanVfMxF 6 33 4 0 0 2 0 1 0 0
izFanMotPos 6 40 4 0 0 16 nz 0 0 0
izFanCurvePy 6 41 128 0 1 2 0 0 nz 0
izFanMotEff 6 39 4 0 0 2 0 1 0 0
endIzxfer 13 0 0 0 0 0 0 0 0 0


Expand Down Expand Up @@ -1988,7 +1989,7 @@ inverse Parent: Top
ivX 6 6 8 0 1771 2 0 0 0 0
ivY 6 7 8 0 1771 2 0 0 0 0
endInverse 13 0 0 0 0 0 0 0 0 0
! CSE 0.916.0+auxfeff.ad2e5053.2 for Win32 console
! CSE 0.917.0 for Win32 console



Expand Down Expand Up @@ -3551,18 +3552,18 @@ Input for Run 001:



! CSE 0.916.0+auxfeff.ad2e5053.2 for Win32 console run(s) done: Wed 31-May-23 3:22:00 pm
! CSE 0.917.0 for Win32 console run(s) done: Thu 01-Jun-23 12:28:29 pm

! Executable: d:\cse\msvc\cse.exe
! 31-May-23 3:18 pm (VS 14.29 2749952 bytes) (HPWH 1.22.0)
! 01-Jun-23 12:16 pm (VS 14.29 2749952 bytes) (HPWH 1.22.0)
! Command line: -x! -t1 ashppkgroom
! Input file: D:\cse\test\ashppkgroom.cse
! Report file: D:\cse\test\ashppkgroom.rep

! Timing info --

! Input: Time = 0.10 Calls = 2 T/C = 0.0485
! AutoSizing: Time = 0.30 Calls = 1 T/C = 0.2960
! Simulation: Time = 6.61 Calls = 1 T/C = 6.6090
! Reports: Time = 0.00 Calls = 1 T/C = 0.0030
! Total: Time = 7.01 Calls = 1 T/C = 7.0120
! Input: Time = 0.10 Calls = 2 T/C = 0.0480
! AutoSizing: Time = 0.30 Calls = 1 T/C = 0.2990
! Simulation: Time = 6.64 Calls = 1 T/C = 6.6400
! Reports: Time = 0.00 Calls = 1 T/C = 0.0020
! Total: Time = 7.04 Calls = 1 T/C = 7.0420