a business of american standard companies • · 2006-12-22 · a business of american standard...

a business of American Standard Companies • www.trane.com

19 October 2006

SUBJECT: TRACE™ 700 v6.0 Compliance with ANSI/ASHRAE Standard 140-2004

Dear TRACE User:

We are pleased to inform you that TRACE 700 v6.0 was tested in compliance with ANSI/ASHRAE Standard 140–2004, Standard Method of Test for the Evaluation of Building Energy Analysis Computer Programs. Test results, supplemented by graphs and explanatory notes, accompany this letter.

As you may know, ANSI/ASHRAE/IESNA Standard 90.1–2001, Energy Standard for Buildings, Except Low-Rise Residential Buildings, stipulates that any computer program that is used to demonstrate code compliance via the performance path’s Energy Cost Budget Method must be tested in accordance with Standard 140. (Addendum P to Standard 90.1–2001, published in February 2004, defined this stipulation and also required that the test results be made available to the public.)

Standard 90.1 defines minimum requirements for the design of energy-efficient buildings and is used by many state and local code-writing bodies as the “standard of care” in their jurisdictions. Building-energy simulation programs, such as TRACE 700, are used to estimate the difference in energy costs between the design- and budget-building models specified in Section 11 of Standard 90.1.

If you have questions about the testing documentation that accompanies this letter, or about any of Trane’s design and analysis tools, please contact our C.D.S. Support Center by phoning (608) 787-3926 or e-mailing [email protected].

Best regards,

Justin Wieman ASHRAE Standard 140 Coordinator C.D.S. Group

Attachments: Results and modeling notes from Standard 140 testing of TRACE 700

STANDARD 140 OUTPUT FORM - MODELING NOTES TRACE 700 v6.0 SOFTWARE: TRACE VERSION: v6.0 DOCUMENT BELOW THE MODELING METHODS USED IF ALTERNATIVE MODELING METHODS OR ALGORITHMS ARE AVAILABLE IN THE SOFTWARE BEING TESTED. (See Annex A2 for examples.) Simulated Effect (1): Loads modeling Optional Settings or Modeling Capabilities: Cooling Load Methodology Options: TETD-TA1 -- Response factor TETD/Time-Averaging method CLTD-CLF (ASHRAE TFM) -- Exact Transfer Function Method TETD-TA2 -- Approximate TETD/Time-Averaging method TETD-PO -- Approximate TETD with Post Office Weighting CEC-DOE2 -- Exact TFM method with CEC\DOE 2.1c constraints RP359 -- ASHRAE Research Project 359 Method RTS (ASHRAE Tables) -- Radiant Time Series coefficients based on 2001 Hof table lookup RTS (Heat Balance) -- Radiant Time Series coefficients based on Heat Balance Setting or Capability Used: RTS (Heat Balance) -- Radiant Time Series coefficients based on Heat Balance Physical Meaning of Option Used: Each room’s solar and non-solar Radiant Time Series values are calculated based on the rigorous Heat Balance method described in the 2001 ASHRAE Handbook of Fundamentals using algorithms found in the ASHRAE Toolkit for Building Load Calculations. This TRACE load methodology also calculates the amount of solar gain lost through retransmission back out the window. These heat balance-derived RTS values are implemented in a manner similar to custom weighting factors used by the DOE 2.1 energy analysis program. Simulated Effect (2): External heat transfer Optional Settings or Modeling Capabilities: Outside Film Methodology Options: Constant (as defined in construction library) Vary with wind speed: per the 1985 ASHRAE Handbook, P. 28.5 Vary with wind speed & direction, and deltaT: per the MoWiTT model Vary with wind speed & direction, deltaT, and surface roughness: per the TARP model Setting or Capability Used: Constant (as defined in construction library) Physical Meaning of Option Used: The internal and external surface coefficients were set equal to the values provided in the standard.

STANDARD 140 OUTPUT FORM - MODELING NOTES TRACE 700 v6.0 Continued Simulated Effect (3): Thermal/optical behavior of windows Optional Settings or Modeling Capabilities: Glass Optical Properties based on either: Standard DS Glass Spectral data Setting or Capability Used: Spectral data Custom window developed per DOE 2 format and imported into the Lib7.db. See bottom of this file. Physical Meaning of Option Used: Windows modeled using the thermal and optical properties developed with Windows 4.0

STANDARD 140 OUTPUT FORM - MODELING NOTES TRACE 700 v6.0 Continued Unit System: SI Name : DOE2 WINDOW LIB Desc : STD 140 Test Window ID : 4652 Tilt : 90.0 Glazings : 2 Frame : 0 None, 0.0000 Spacer : 0 None 0.000 0.000 0.000 Total Height: 2000.00 mm Total Width : 3000.00 mm Glass Height: 2000.00 mm Glass Width : 3000.00 mm Mullion : None Gap Thick Cond dCond Vis dVis Dens dDens Pr dPr 1 Air 12.7 0.02410 7.600 1.730 10.000 1.290 -0.0044 0.720 .00180 2 Air 0. 0. 0. 0. 0. 0. 0. 0. 0. 3 Air 0. 0. 0. 0. 0. 0. 0. 0. 0. 4 Air 0. 0. 0. 0. 0. 0. 0. 0. 0. 5 Air 0. 0. 0. 0. 0. 0. 0. 0. 0. Angle 0. 10. 20. 30. 40. 50. 60. 70. 80. 90. Hemis Tsol 0.748 0.747 0.745 0.739 0.725 0.693 0.622 0.475 0.229 0.000 0.644 Abs1 0.064 0.064 0.066 0.068 0.071 0.075 0.081 0.088 0.095 0.000 0.074 Abs2 0.052 0.052 0.053 0.055 0.056 0.058 0.057 0.053 0.041 0.000 0.054 Abs3 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. Abs4 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. Abs5 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. Abs6 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. 0. Rfsol 0.136 0.136 0.137 0.139 0.148 0.175 0.240 0.384 0.635 1.000 0.217 Rbsol 0.136 0.136 0.137 0.139 0.148 0.175 0.240 0.384 0.635 1.000 0.217 Tvis 0.817 0.817 0.816 0.811 0.800 0.769 0.695 0.538 0.273 0.000 0.714 Rfvis 0.147 0.147 0.148 0.151 0.161 0.190 0.262 0.417 0.682 1.000 0.236 Rbvis 0.147 0.147 0.148 0.151 0.161 0.190 0.262 0.417 0.682 1.000 0.236 SHGC 0.787 0.786 0.785 0.780 0.767 0.737 0.666 0.518 0.266 0.000 0.686 SC: 0.92 Layer ID# 2 2 0 0 0 0 Tir 0.000 0.000 0. 0. 0. 0. Emis F 0.900 0.900 0. 0. 0. 0. Emis B 0.900 0.900 0. 0. 0. 0. Thickness(mm) 3.175 3.175 0. 0. 0. 0. Cond(W/m2-C) 333.0 333.0 0. 0. 0. 0. Spectral File None None None None None None Overall and Center of Glass Window U-values (W/m2-C) Outdoor Temperature -17.8 C 15.6 C 26.7 C 37.8 C Solar WdSpd hcout hrout hin (W/m2) (m/s) (W/m2-C) 0 0.00 00.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0 6.71 21.00 0.00 8.29 3.00 3.00 0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 00.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0 0.00 00.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Standard 140-2001 Extended Comments BESTEST

Action taken to update code:

1. TRACE has long used a "cloud cover modifier" as the sole basis for determining the effect of non-clear sky conditions for incident solar radiation --even when measured solar data exists on the 8760 weather tapes. TRACE, starting with v4.1.6, now uses measured solar exclusively when it is available on 8760 weather locations.

2. TRACE used the standard ASHRAE algorithm for ratio of sky diffuse radiation

on a vertical surface to sky diffuse radiation on a horizontal surface, i.e., (p. eq. 21, p.30.16, 2001 Handbook of Fundamentals). Starting with v4.1.6, the referenced algorithm was replaced by the Perez diffuse irradiation model.

3. The transmitted solar algorithm in TRACE uses the glazing characteristics

of ASHRAE single-pane, double-strength glass which are then modified by a user-defined shading coefficient. In v6.0.1, this solar transmission calculation augmented with an algorithm that can evaluate the properties of glazing defined by the Window 4 program.

Additional Notes:

1. N/A

Standard 140-2004 Extended Comments BESTEST

Action taken to update code: 1. N/A

Additional Notes: 1. The deviation from benchmark of the high mass peak results is very likely a

result of TRACE's linear temperature drift model. All the other models used by the Bestest benchmark programs have some type of cubic or bi-quadratic temperature drift model (that is, the temperature drift each hour is a cubic or bi-quadratic function of several past hours' room temperature history). TRACE, on the other hand, predicts the temperature drift each hour purely as a function of the room mass and the previous hour's end temperature.

2. Case 960 models a passive solar sun room using a modified Trombe wall. In order

to model this configuration the associated algorithm would need to compute: a) The hourly proportion of solar radiation absorbed by the individual sunlit

surfaces within the sunlit portion of the Trombe wall b) The affect of introducing infiltration in the Trombe wall section c) Adjacent space heat transfer between the Trombe wall and the interior

room. The required inputs to model this type of configuration are not available in TRACE.

Standard 140-2004 Extended Comments E-Series Action taken to update code:

1. The routine for room humidity ratios was modified to test for a dry coil condition by estimating the hourly coil apparatus dew point, ADP.

2. The routine for condenser fan energy was modified to adjust for the cycle on ratio

when calculating that the max condenser fan demand for OADB > 95F. Additional Notes:

1. The agreement between the Envelope latent and sensible values match very closely for all E-cases. This means that the envelope and internal load values defined in the TRC's were correctly input.

2. After the SADBC Min/Max values were specifically input for each of the E-

Cases in Alt 1, the results for the Evaporator, Supply and Condenser fans match the benchmark programs very closely.

HVAC BESTEST: Mean COP Sensitivities

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OP

CASIS/EDF CLIM2000/EDF DOE-2.1E/CIEMAT DOE-2.1E/NREL ENERGY+/GARD TRNSYS-ideal/TUDTRNSYS-real/TUD Analytical/TUD Analytical/HTAL1 Analytical/HTAL2 TRACE 700 V6.1.0.0

HVAC BESTEST: Total Space Cooling Electricity Consumption

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HVAC BESTEST: Total Space Cooling Electricity Sensitivities

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HVAC BESTEST: Total Compressor Electricity Sensitivities

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HVAC BESTEST: Total Indoor (Supply) Fan Electricity Consumption

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HVAC BESTEST: Indoor (Supply) Fan Electricity Sensitivities

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HVAC BESTEST: Outdoor (Condenser) Fan Electricity Consumption

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HVAC BESTEST: Outdoor (Condenser) Fan Electricity Sensitivities

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HVAC BESTEST: Total Coil Load

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HVAC BESTEST: Total Coil Load Sensitivities

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HVAC BESTEST: Sensible Coil Load

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HVAC BESTEST: Sensible Coil Load Sensitivities

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HVAC BESTEST: Latent Coil Load

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CASIS/EDF CLIM2000/EDF DOE-2.1E/CIEMAT DOE-2.1E/NRELENERGY+/GARD TRNSYS-ideal/TUD TRNSYS-real/TUD Analytical/TUDAnalytical/HTAL1 Analytical/HTAL2 TRACE 700 V6.1.0.0

HVAC BESTEST: Latent Coil Load Sensitivities

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E200-1

00 A

RI v dr

y

delta

Loa

d (k

Wh

ther

mal

)


HVAC BESTEST: Mean Indoor Drybulb Temperature

0

5

10

15

20

25

30

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DBE12

0 as1

00 hi

IDB

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODBE19

0 as1

80 lo

PLRE19

5 as1

85 lo

PLR

E200 A

RI PLR

=1 hi

SHR

Tem

pera

ture

(°C

)


HVAC BESTEST: (Maximum - Minimum)/Mean Indoor Drybulb Temperature

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DBE12

0 as1

00 hi

IDB

E130 a

s100

lo P

LR

E140 a

s130

lo O

DBE15

0 as1

10 hi

SHRE16

0 as1

50 hi

IDB

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLRE18

0 as1

50 lo

SHR

E185 l

oSHR hi

ODBE19

0 as1

80 lo

PLRE19

5 as1

85 lo

PLR

E200 A

RI PLR

=1 hi

SHR

Frac

tiona

l Var

iatio

n


HVAC BESTEST: Mean Indoor Humidity Ratio

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

0.016

0.018

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DBE12

0 as1

00 hi

IDB

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODBE19

0 as1

80 lo

PLRE19

5 as1

85 lo

PLR

E200 A

RI PLR

=1 hi

SHR

Hum

idity

Rat

io (k

g/kg

)


HVAC BESTEST: (Maximum - Minimum)/Mean Indoor Humidity Ratio

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.1

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DBE12

0 as1

00 hi

IDB

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODBE19

0 as1

80 lo

PLRE19

5 as1

85 lo

PLR

E200 A

RI PLR

=1 hi

SHR

Frac

tiona

l Var

iatio

n


HVAC BESTEST: Total Zone Load

0

1000

2000

3000

4000

5000

6000

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DBE12

0 as1

00 hi

IDB

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODBE19

0 as1

80 lo

PLRE19

5 as1

85 lo

PLR

E200 A

RI PLR

=1 hi

SHR

Load

(Wh

ther

mal

)


HVAC BESTEST: Sensible Zone Load

0

500

1000

1500

2000

2500

3000

3500

4000

4500

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DBE12

0 as1

00 hi

IDB

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODBE19

0 as1

80 lo

PLRE19

5 as1

85 lo

PLR

E200 A

RI PLR

=1 hi

SHR

Load

(Wh

ther

mal

)


HVAC BESTEST: Latent Zone Load

0

500

1000

1500

2000

2500

3000

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DBE12

0 as1

00 hi

IDB

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODBE19

0 as1

80 lo

PLRE19

5 as1

85 lo

PLR

E200 A

RI PLR

=1 hi

SHR

Load

(Wh

ther

mal

)


HVAC BESTEST: Sensible Coil Load - Zone Load (Fan Heat)

0

50

100

150

200

250

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DB

E120 a

s100

hiID

B

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODB

E190 a

s180

loPLR

E195 a

s185

loPLR

E200 A

RI PLR

=1 hi

SHR

Load

(kW

h th

erm

al)


HVAC BESTEST: Latent Coil Load - Latent Zone Load (Should = 0)

-180

-160

-140

-120

-100

-80

-60

-40

-20

0

20

E100 d

ry lo

IDB hi

ODB

E110 a

s100

lo O

DB

E120 a

s100

hiID

B

E130 a

s100

lo P

LR

E140 a

s130

lo O

DB

E150 a

s110

hiSHR

E160 a

s150

hiID

B

E165 a

s150

mID

B mODB

E170 a

s150

mSHR m

PLR

E180 a

s150

loSHR

E185 l

oSHR hi

ODB

E190 a

s180

loPLR

E195 a

s185

loPLR

E200 A

RI PLR

=1 hi

SHR

Load

(kW

h th

erm

al)


Annual HeatingLow Mass Building

TRACE 700

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

600Base Case

610South Shading

620East/West

Window Orientation

630East/WestShading

640Thermostat

Setback

650Night

Ventilation

Case No. & Title

MW

h

ESP UK-DMU

BLAST US/IT

DOE2 USA

SRES/SUN USA

SERIRES UK-BRE

S3PAS SPAIN

TRNSYS BEL/UK

TASE FINLAND

TRACE 700 V6.1.0.0

Note: Case 650 Heating is always off

Annual CoolingLow Mass Building

TRACE 700

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

600Base Case

610South Shading

620East/West

Window Orientation

630East/WestShading

640Thermostat

Setback

650Night

Ventilation

Case No. & Title

MW

h

ESP UK-DMUBLAST US/ITDOE2 USASRES/SUN USASERIRES UK-BRES3PAS SPAINTRNSYS BEL/UKTASE FINLANDTRACE 700 V6.1.0.0

Peak HeatingLow Mass Building

TRACE 700

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

600Base Case

610South Shading

620East/West

Window Orientation

630East/WestShading

640Thermostat

Setback

650Night

Ventilation

Case No. & Title

kW


Note: Case 650 Heating is always off

Peak CoolingLow Mass Building

TRACE 700

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

600Base Case

610South Shading

620East/West

Window Orientation

630East/WestShading

640Thermostat

Setback

650Night

Ventilation

Case No. & Title

kW


Annual HeatingHigh Mass Building

TRACE 700

0.0

1.0

2.0

3.0

4.0

5.0

6.0

900High Mass

Base Building

910High Mass

South Shading

920High Mass

East/West Window

930High MassEast/West Shading

940High Mass

Thermal Setback

950High Mass

Night Ventilation

960Sunspace

Case No. & Title

MW

h


Notes: Case 950 Heating is always offCase 960 TRACE 700 does not model

Annual CoolingHigh Mass Building

TRACE 700

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

900High Mass

Base Building

910High Mass

South Shading

920High Mass

East/West Window


940High Mass

Thermal Setback

950High Mass

Night Ventilation

960Sunspace

Case No. & Title

MW

h


Note: Case 960 TRACE 700 does not model

Peak HeatingHigh Mass Building

TRACE 700

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

900High Mass

Base Building

910High Mass

South Shading

920High Mass

East/West Window


940High Mass

Thermal Setback

950High Mass

Night Ventilation

960Sunspace

Case No. & Title

kW


Notes: Case 950 Heating is always OffCase 960 TRACE 700 does not model

Peak CoolingHigh Mass Building

TRACE 700

0.0

1.0

2.0

3.0

4.0

5.0

6.0

900High Mass

Base Building

910High Mass

South Shading

920High Mass

East/West Window


940High Mass

Thermal Setback

950High Mass

Night Ventilation

960Sunspace

Case No. & Title

kW


Note: Case 960 TRACE 700 does not model

Free Float Test CasesMAXIMUM ANNUAL HOURLY ZONE TEMPERATURE

TRACE 700

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

600FFBase CaseFree Float

900FFHigh Mass

Base BuildingFree Float

650FFNight Ventilation

Free Float

950FFHigh Mass

Night VentilationFree Float

960Sunspace

Case No. & Title

Tem

pera

ture

(C)


Notes: Case 960 TRACE 700 does not model

Free Float Test CasesMinimum Annual Hourly Zone Temperature

TRACE 700

-25.0

-20.0

-15.0

-10.0

-5.0

0.0

5.0


900FFHigh Mass



Free Float

950FFHigh Mass


960Sunspace

Case No. & Title

Tem

pera

ture

(C)



Free Float Test CasesAverage Annual Hourly Zone Temperature

TRACE 700

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0


900FFHigh Mass



Free Float

950FFHigh Mass


960Sunspace

Case No. & Title

Tem

pera

ture

(C)



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