Ctg Hvac Calculation

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Universal Consultancy Services

Tel. + 962.6. 55 29 476 Fax. + 962.6. 55 22 476 Email: [email protected]

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CTG BUILDING HVAC CALCULATION

R0 08-02-2010 Released for Construction UCS UCS

01 27-01-2010 Incorporating with FTI comments UCS UCS

00 13-01-2010 UCS UCS

Rev. Date Description DSGN CHKD APPD

Project Title:

Al Qatrana Power Project

The Hashemite Kingdom of JordanThe Ministry of Energy and Mineral Resources

Owner :

Owner’s Technical advisor :

EPC Contractor :

Engineering Company:

Sub-Vendor’s Name:

Project No. Job No. Scale Sheet No.

3480870001 - - -

Document No.

KP-170-28-001

Sub-Contractor Document No.:

Sub-Supplier:






CONTENTS

Section 1 General Information

i. General Project Informationii. Applicable Codes, Standards and Referencesiii. Calculation Method

Section 2 Design Parameters

i. Weather Dataii. Indoor Criteria

Section 3 HVAC Systems Designation

i. System Definition

Section 4 Overall Heat Transfer Coefficients (U Factors)

i. U Value Summaryii. U Value Detailed Calculations

Section 5 Outdoor Air Sizing

i. Outdoor Air Sizing

Section 6 Calculation Input Data

i. Space Input Dataii. Schedule Input Dataiii. System Input Data

Section 7 Calculation Results

i. Results Summaryii. Air System Sizing Summaryiii. Zone Sizing Summaryiv. System Design Load Summaryv. Space Load Summaryvi. Results Calculation






SECTION 1

GENERAL INFORMATION






i. GENERAL PROJECT INFORMATION

− Project : Al Qatrana Power Project

− Location : Jordan - Qatrana

− Building : Steam Turbine Generator

ii. APPLICABLE CODES, STANDARDS & REFERENCES

− ASHRAE ( American Society of Heating, Refrigerating and Air Conditioning Engineers).

− Jordanian National Code.

iii. HVAC CALCULATION METHOD

Supplied air flow rate for a space is determined by the zone load requirements, any possible makeupair needs due to direct exhaust and pressurization requirements. Outdoor air quantity of spacesis determined as per applicable standard to maintain acceptable indoor air quality in the space.

The software programs used for load calculation are Carrier E20-II / HAP V.4.40 & Carrier E20-II / Block Load V.3.05.






SECTION 2

DESIGN PARAMETERS






i. WEATHER DATA

As per 2006 ASHRAE Fundamentals Handbook design condition for Amman

Latitude : 31.98° N

Daily Range : 11.3 °C

− Outdoor Design Conditions ( Ventilation system ):

The maximum outdoor temperature considered for design of ventilation system shall be 38.9 °

− Indoor Design Conditions ( Ventilation system ):

The temperature rise of air above the design ambient temperature : + 5 °C .

Positive pressure to be maintained insides CTG building : 25 Pa



Prepared by: UCs Page: 1

January 12, 2010

DESIGN TEMPERATURE REPORT

Location: Amman, Jordan

Block Load 3.05

Latitude 32.0 Degree

Elevation 766.9 m

Summer Design Dry Bulb Temp 38.9 C

Summer Coincident Wet Bulb Temp 21.1 C

Daily Temperature Range 13.9 K

Winter Design Dry Bulb Temp 0.6 C

Atmospheric Clearness Number 1.00

Data Source User Defined

Hour DB WB

000 15.8 10.0

100 15.1 9.8

200 14.4 9.5

300 13.8 9.2

400 13.4 9.0

500 13.3 9.0

600 13.5 9.1

700 14.2 9.4

800 15.5 9.9

900 17.3 10.7

1000 19.4 11.5

1100 21.7 12.4

1200 24.0 13.3

1300 25.6 13.9

1400 26.7 14.3

1500 27.2 14.4

1600 26.7 14.3

1700 25.8 14.0

1800 24.2 13.4

1900 22.4 12.7

2000 20.6 12.0

2100 19.1 11.4

2200 17.7 10.8

2300 16.6 10.4

DB

WB

T e m p e r a t u r e

Hour of the day

0

5

10

15

20

25

30

0 2 4 6 8 10 12 14 16 18 20 22 24

January

TABLE 1. DESIGN PARAMETERS

TABLE 2. COOLING DESIGN TEMPERATURE PROFILES (DB/WB in C)



Latitude 32.0 Degree

Elevation 766.9 m

Summer Design Dry Bulb Temp 38.9 C

Summer Coincident Wet Bulb Temp 21.1 C

Daily Temperature Range 13.9 K

Winter Design Dry Bulb Temp 0.6 C

Atmospheric Clearness Number 1.00

Data Source User Defined

Month NE E SE S SW W NW N HOR

January 92.7 553.0 784.1 777.3 784.1 553.0 92.7 74.3 556.1

February 203.6 646.0 782.8 695.8 782.8 646.0 203.6 86.4 684.3

March 338.6 716.8 716.3 553.9 716.3 716.8 338.6 99.4 795.3

April 462.1 715.3 590.6 362.7 590.6 715.3 462.1 112.1 854.2

May 535.2 693.9 487.6 232.7 487.6 693.9 535.2 120.8 872.7

June 556.0 676.6 439.9 190.6 439.9 676.6 556.0 147.6 871.1

July 526.2 679.6 474.6 226.1 474.6 679.6 526.2 126.0 860.7

August 446.0 690.2 569.8 350.1 569.8 690.2 446.0 117.3 836.7

September 324.4 678.6 688.5 540.0 688.5 678.6 324.4 102.9 769.1

October 200.1 616.4 755.1 676.7 755.1 616.4 200.1 88.9 671.5

November 93.0 544.6 772.3 766.2 772.3 544.6 93.0 75.3 552.7

December 68.8 512.4 777.3 794.2 777.3 512.4 68.8 68.8 499.6

Prepared by: UCs Page: 1

January 12, 2010

DESIGN SOLAR REPORT


Block Load 3.05

TABLE 1. DESIGN PARAMETERS

TABLE 2. MAXIMUM SOLAR HEAT GAINS (W/sqm)





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ii. INDOOR CRITERIA

INDOOR CONDITIONSOUTDOOR

AIRINTERNAL HEAT GAINS

SUMMER WINTER EQUIP DISSIPITEM SPACE

TEMPDB(°C)

RH(%)

TEMPDB(°C)

RH(%)

INDOORPRESS.

(Pa)REQ.

PEOPLE(No.)

LIGHTS(W/m

2)

SENS.(W)

LAT.(W)

1GAS

TURBINEAREA

43.9 NA NA NA +25 12 ACH - 21.5 514000 -

1GENERATOR

AREAS43.9 NA NA NA +25 12 ACH - 21.5 130000 -






SECTION 3

HVAC SYSTEMS DESIGNATION






i. SYSTEM DEFINITION:

SYSTEM-1 EQUIPMENT

NO. DESCRIPTION TYPE UNIT TAG SERVED AREANOTES

1 VENTILATION SYSTEM AIR HANDLING UNIT CTG-AHU-1GAS TURBINE

AREA

DUTY- 13.3%


AREA

DUTY- 13.3%


AREA

DUTY- 13.3%


AREA

DUTY- 13.3%


AREA

DUTY- 13.3%


AREA

DUTY- 13.3%

7 VENTILATION SYSTEM AIR HANDLING UNIT CTG-AHU-7GENERATOR

AREAS

DUTY- 10.0%

8 VENTILATION SYSTEM AIR HANDLING UNIT CTG-AHU-8GENERATOR

AREAS

DUTY- 10.0%






SECTION 4

OVERALL HEAT TRANSFER COEFFICIENTS






− ROOF

ITEM DESCRIPTIONTHICKNESS

(mm)

HEATTRANSFER

FILM COEFF.(h)

(W/m2.K)

THERMALCONDUCTIVITY

(k)(W/m.K)

THERMALRESISTANCE

(R)(m

2.K/W)

REFERENCES/NOTES

2 ROOF

2.1INDOOR AIR FILM

HEAT FLOW8.33 0.12

JORDANIAN NATIONALCODES

2.2 SHEET METAL NEGLIGIBLEJORDANIAN NATIONAL

CODES

2.3 POLYSTYRENE 130 0.034 3.82JORDANIAN NATIONAL

CODES

2.4 SHEET METAL NEGLIGIBLEJORDANIAN NATIONAL

CODES

2.5OUTDOOR AIR FILM

HEAT FLOW,18 km/h WIND

16.6 0.06JORDANIAN NATIONAL

CODES

OVERALL THERMALRESISTANCE

(R)(m2.K/W)

4.00

OVERALL HEATTRANSFER COEFF.

(U)(W/ m2.K)

0.25

− FLOOR


(mm)

HEATTRANSFER

FILM COEFF.(h)

(W/m2.K)

THERMALCONDUCTIVITY

(k)(W/m.K)

THERMALRESISTANCE

(R)(m

2.K/W)

REFERENCES/NOTES

3 FLOOR

3.1INDOOR AIR FILM

HEAT FLOW8.83 0.12

JORDANIAN NATIONALCODES

3.2 RCC 300 1.2 0.25JORDANIAN NATIONAL

CODES


(R)(m2.K/W)

0.77

OVERALL HEAT

TRANSFER COEFF.(U)(W/ m2.K)

1.30






− EXTERIOR DOORS

ITEM DESCRIPTION

THICKNESS

(mm)

HEATTRANSFER

FILM COEFF.(h)(W/m

2.K)

THERMALCONDUCTIVITY

(k)(W/m.K)

THERMALRESISTANCE

(R)(m

2.K/W)

REFERENCES/NOTES

4 EXTERIOR DOORS

DOUBLE SKINNED PRESSEDSTEEL DOOR


(R)(m2.K/W)

0.17JORDANIAN NATIONAL

CODES


(U)(W/ m2.K)

5.8

− WINDOWS


(mm)

HEATTRANSFER

FILM COEFF.(h)

(W/m2.K)

THERMALCONDUCTIVITY

(k)(W/m.K)

THERMALRESISTANCE

(R)(m

2.K/W)

REFERENCES/NOTES

5 WINDOWS

Double glazing, 6mm airspace, vertically installed,operable, aluminum frame


(R)(m2.K/W)

0.29JORDANIAN NATIONAL

CODES


(U)(W/ m2.K)

3.5






SECTION 5

OUTDOOR AIR SIZING






i. OUTDOOR AIR SIZING:

MINIMUM OUTDOOR AIR

REQUIREMENTSMINIMUM EXHAU

REQUIREME

RATE RATE

S Y S T E M

E Q U I P ME N T

S P A C E

F L

O OR A R E A

( m2 )

C E I L I N G

H E I GH T

( m )

S P A C E

V OL U ME

( m 3 )

P R E S S U R

( P a )

P E OP L E

( n o. )

ACH L/S.per L/s.m2

AIR

FLOW(m

3/h)

REF.

ACHL/S.per

L/S.m

2

F(m

CTG-AHU-

1

CTG-AHU-

2

CTG-AHU-

3

CTG-AHU-

4CTG-AHU-

5CTG-AHU-

6

GAS

TURBINE AREA

1295 22 28490

CTG-AHU-

7

1

CTG-AHU-

8

GENERATORAREAS

580 10.1 5860

+25 - 12 - - 468300AS PER

DESIGN

REQ.- - -





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SECTION 6

CALCULATION INPUT DATA



TYPE 1 TYPE 2 TYPE 3

WALL DETAIL

U-Value (W/sqm/K ) 0.250 0.570 0.570

Weight (kg/sqm) 361 361 361

Color Medium Light Light

ROOF DETAILU-Value (W/sqm/K ) 0.250 0.740 0.740

Weight (kg/sqm) Medium Medium Medium

Color Medium Light Light

GLASS INFORMATION

U-Value (W/sqm/K ) 3.500 3.010 3.010

Glass Factor 0.50 0.51 0.51

Interior Shades No No No

SHADE INFORMATION

Window Height (m) 1.0 2.4 2.4

Window Width (m) 1.0 1.2 1.2

Reveal Depth (mm) 0.0 0.0 0.0

Overhang Height (mm) 0.0 0.0 0.0

Overhang Ext (mm) 0.0 0.0 0.0

Fin Separation (mm) 0.0 0.0 0.0

Fin Extension (mm) 0.0 0.0 0.0

GENERAL ZONE DATA

Zone Name CTG HALL

Floor Area 1,875.0 sqm

Building Weight Medium

LIGHTING DATA

Lighting Usage 21.53 W/sqm

Unoccupied Diversity 0 %

Wattage Multiplier 1.10

Fixture Type Recessed, Not Vented

OTHER ELECTRIC

Usage 644,000 Watts


PEOPLE

Occupancy 1.0 People


Activity Level Seated At Rest

Sensible Gain 67.4 W /person

Latent Gain 35.2 W /person

MISCELLANEOUS LOADS

Sensible 0.0 W

Latent 0.0 W


INFILTRATION

Cooling .00 L/s/sqm

Heating .00 L/s/sqm

SLAB

Area 1,659.0 sqm

Perimeter 288.0 m

Depth 0.30 m

Prepared by: UCs

ZoneName: CTG HALL Block Load 3.05


ZONE INPUT REPORT

February 02, 2010

Page: 1

TABLE 1. GENERAL ZONE DATA

TABLE 2. BUILDING MATERIAL



Partition 1 Partition 2 Partition 3

Net Area (sqm) 0.00 0.00 0.00

U-Value (W/sqm/K ) .568 .568 .568

Adjacent Region Temp

Cooling 32.2 C 32.2 C 32.2 C

Heating 32.2 C 32.2 C 32.2 C

Wall Gross Glass Glass Shade Glass Glass Shade

Exposure Type Area Type Area Type Type Area Type

(sqm) (sqm) (sqm)

East 1 1,967.3 1 74.0 0 0 0.0 0

West 1 1,967.3 1 74.0 0 0 0.0 0

South 1 495.0 1 12.0 0 0 0.0 0

North 1 495.0 1 18.0 0 0 0.0 0

Roof 1 1,659.0 0 0.0 0 0 0.0 0

Prepared by: UCs

ZoneName: CTG HALL Block Load 3.05


ZONE INPUT REPORT

February 02, 2010

Page: 2

TABLE 3. EXPOSURE AREA

TABLE 4. PARTITION DATA



All zones served by a common air handler

1

Prepared by: UCs

System: Ventilation

Page: 1

February 02, 2010

SYSTEM INPUT REPORT


Block Load 3.05

1) CTG HALL

THERMOSTAT SETPOINTS

Cooling (Occ.) 43.0 C

Cooling (Unocc.) 43.0 C

Heating 21.0 C

RETURN AIR PLENUM No

FAN

Configuration Blow Thru

Static Pressure 250.00 Pa.

System Type Clg and Warm Air Ht

System Start :00

Duration 24 hrs

SIZING SPECIFICATIONS

Supply 38.0 C

Ventilation 15.00 L/s/Per

Exhaust 0.00 L/s

FACTORS

Coil Bypass 0.050

Safety (Sens) 0 %

Safety (Latent) 0 %Heating Safety 0 %

Selected Zones:

Total Zones Selected:

System Arrangement:

TABLE 2. SYSTEM ZONING INFORMATION

TABLE 1. HVAC SYSTEM DESCRIPTION






SECTION 7

CALCULATION RESULTS




Tel. + 962.6. 55 29 476 Fax. + 962.6. 55 22 476

Email: [email protected]


i. RESULTS SUMMARY:

SUMMER

INDOORCOND.

COOLINGLOAD

INDOCON

TEM SPACEFLOORAREA(m

2)

CEILINGHEIGHT

(m)

SPACEVLOUME

(m3)

PRESS.REL. TO

ADJ.SPACE

(Pa)

D B ( ° C )

R H ( % )

S E N .

( k W )

L A T .

( k W )

SUPPLYAIIRFLOW

(m3/h)

RETURNAIIRFLOW

(m3/h)

EXHAUSTAIIRFLOW

(m3/h)

OUTDOORAIR

(m3/h)

D B ( ° C )

1.1 CTG 1659 23 38157 +25 43 NA - - 476000 - - 476000 -

TOTAL 476000 476000

CTG-AHU1

63500 63500

CTG-AHU2

63500 63500

CTG-AHU3

63500 63500

CTG-AHU4

63500 63500

CTG-AHU5

63500 63500

CTG-AHU6

63500 63500

CTG-AHU7 47500

47500

CTG-AHU8

47500 47500



Design Load: July 17:00

Db/Wb Temp 37.5/ 20.7 C

Winter Design Temp 0.6 C

Prepared by: UCs

System: Ventilation

Page: 1

February 02, 2010

DETAILED SYSTEM LOAD REPORT


Block Load 3.05

Total Cooling Cooling Heating

Net Area Transmission Solar Load Transmission

Component (sqm) (W ) (W ) (W )

NE 0 0 - 0

E 1,893 -546 - 9,651

SE 0 0 - 0

S 483 -674 - 2,462

SW 0 0 - 0

W 1,893 -1,727 - 9,651

NW 0 0 - 0

N 477 -928 - 2,431

NE 0 0 0 0

E 74 -1,867 5,976 5,281

SE 0 0 0 0

S 12 -303 524 856

SW 0 0 0 0

W 74 -1,867 10,747 5,281

NW 0 0 0 0

N 18 -454 778 1,285

Hor 0 0 0 0

Design Cooling Loads Design

Sensible Latent Heating

Load Component Details (W ) (W ) (W )

Solar Loads 178 sqm 18,024 - -

Wall Transmission 4,747 sqm -3,874 - 24,194

Roof Transmission 1,659 sqm 1,700 - 8,456

Glass Transmission 178 sqm -4,492 - 12,702

Skylight Transmission 0 sqm 0 - 0

Partitions 0 sqm 0 - 0

Lighting 21.53 W/sqm 44,323 - -Other Electric 343.47 W/sqm 643,620 - -

People 1 People 67 35 -

Infiltration 0 0 0

Miscellaneous 0 0 -

Slab 1,659 sqm - - 6,403

Pulldown/Warm-Up 0 - -

Safety Factor 0/0/0 % 0 0 0

Total Zone Loads 699,368 35 51,756

Ventilation Load 12 L/s -73 -35 269

Supply Fan Load 126,997 L/s 58,792 - -

Plenum Load thru Wall 0 % 0 - -

Plenum Load thru Roof 0 % 0 - -

Plenum Load - Lights 0 % 0 - -

Reheat Load 0 - -

Total Coil Loads 758,087 0 52,025

Walls:

Glass:

TABLE 1. CALCULATION INFORMATION

TABLE 3. WALL AND GLASS BREAKDOWN

TABLE 2. LOAD COMPONENT SUMMARY



Prepared by: UCs

System: Ventilation

Page: 1

February 02, 2010

DETAILED ZONE LOAD REPORT


Block Load 3.05

Total Cooling Cooling Heating

Net Area Transmission Solar Load Transmission

Component (sqm) (W ) (W ) (W )

NE 0 0 - 0

E 1,893 -546 - 9,651

SE 0 0 - 0

S 483 -674 - 2,462

SW 0 0 - 0

W 1,893 -1,727 - 9,651

NW 0 0 - 0N 477 -928 - 2,431

NE 0 0 0 0

E 74 -1,867 5,976 5,281

SE 0 0 0 0

S 12 -303 524 856

SW 0 0 0 0

W 74 -1,867 10,747 5,281

NW 0 0 0 0

N 18 -454 778 1,285

Hor 0 0 0 0

Design Cooling Loads Design

Sensible Heating

Load Component Details (W ) (W )

Solar Loads 178 sqm 18,024 -

Wall Transmission 4,747 sqm -3,874 24,194

Roof Transmission 1,659 sqm 1,700 8,456

Glass Transmission 178 sqm -4,492 12,702Skylight Transmission 0 sqm 0 0

Partitions 0 sqm 0 0

Lighting 21.53 W/sqm 44,323 -

Other Electric 343.47 W/sqm 643,620 -

People 1 People 67 -

Infiltration 0 0

Miscellaneous 0 -

Slab 1,659 sqm - 6,403

Pulldown/Warm-Up 0 -

Safety Factor 0/ 0 % 0 0

Total Zone Loads 699,368 51,756

Zone Name: CTG HALLSystem Name: Ventilation

Design Load: July 17:00

Db/Wb Temp: 37.5/ 20.7 C

Glass:

Walls:

TABLE 3. WALL AND GLASS BREAKDOWN

TABLE 2. LOAD COMPONENT SUMMARY

TABLE 1. GENERAL INFORMATION






vi. RESULTS CALCULATION:

− Solar Loads = 18,024 W (From E20 II-Block Load)

− Wall Transmission = -3,874 W (From E20 II-Block Load)

− Roof Transmission = 1,700 W (From E20 II-Block Load)

− Glass Transmission = -4,492 W (From E20 II-Block Load)

− Lighting = 44,323 W (From E20 II-Block Load)

− Heat dissipation in generator building = 130,000 W

− Heat dissipation from GT building = 514,000 W

Total Load = 699,681 W

Temperature difference = 5 °C

Specific heat at constant pressure (Cp) = 1.007 kJ/kg.°C

Density of air @ 38.9 °C ambient condition ()= 1.1 kg/m3

To find the Air Flow required for ventilation:

Heat Load = Q X Cp X X T

699,681 = Q X 1.007 X 1.1 X 5

Q1 = 126,330 l/s (Based on waste heat removal basis)

= 454788 m3/hr

Q2 = ACH X Volume (Based on air change method)

= 12 X ((1295 X 22)+(2 X 290 X10.1))

= 412176 m3/hr

To maintain ( P = 25 Pa) inside CTG building we need air flow = 13415 m3 /hr

Total air flow required for ventilation = 457884 + 13415

= 468,292 m3 /hr

476,000 m3/hr

Distribution of fans shall be as follows:

- Heat dissipation in generator building = 130,000 W- Heat dissipation from GT building = 514,000 W

Percentage of heat in generator building = 130 / (514 +130) = 20%

Therefore, 20% of the required air will be supplied to generator areas and 80% to turbine area.




Exhaust air quantity = 476000 -13415

= 462,585 m3/hr

= 128.5 m3/s

Exhaust air velocity = 1.75 m/s

Required area for roof vent = 128.5 / 1.75

= 73.4 m2

= 74 m2

Required area (A) = Available area – area blocked by rafters.

= AAV - AR

Available area (AAV) = L x W

where, L = Available span length for roof vent (84.0m)

W = Throat width (m)

Area blocked by rafters (AR) = LR x WR x N

where, LR = Length of the rafter blocking exhaust air flow i.e nothing but throat width (W)

WR = Rafter width (0.229 m)

N = No. of rafters (17 nos.)

A = AAV - AR

= (L x W - LR x WR x N)

74.0 = (84.0 x W – W x 0.229 x 17)

W = 74.0 / 80.11

= 0.924 m

Throat size for roof vent = 950 mm

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