SLAC MMF PROJECT
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1 SLAC MMF PROJECT SLAC MMF PROJECT MECHANICAL SYSTEM DESCRIPTION October 14, 2004 SLAC MMF Mechanical System Ben Entezam [email protected]
description
SLAC MMF PROJECT. MECHANICAL SYSTEM DESCRIPTION. October 14, 2004. Ben Entezam. SLAC MMF Mechanical System. [email protected]. SAFETY?. SLAC FLOOR LAYOUT W/ DESIGN TEMP. PARAMETERS. MMF ±0.1°C. CMM ±1.0°C. STORAGE ± 2.5°C. MECHANICAL ROOM UNIT LAYOUT. AHU-3. AHU-2. AHU-1. - PowerPoint PPT Presentation
Transcript of SLAC MMF PROJECT
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SLAC MMF PROJECTSLAC MMF PROJECT
MECHANICAL SYSTEM DESCRIPTION
October 14, 2004
SLAC MMF Mechanical System
Ben Entezam
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SAFETY?SAFETY?
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MMF ±0.1°C
STORAGE
± 2.5°C
SLAC FLOOR LAYOUT W/ DESIGN TEMP. PARAMETERSSLAC FLOOR LAYOUT W/ DESIGN TEMP. PARAMETERS
CMM
±1.0°C
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MECHANICAL ROOM UNIT LAYOUT
AHU-1MAU-1
AHU-3AHU-2
AHU-1 AND MAU-1 SERVING MMF
AHU-2 SERVING CMM
AHU-3 SERVING LOAD DOCK
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ITEM NO.ITEM NO.
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2
3
4
5
6A
6B
7
8A
8B
9
10
11
12
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HEAT SOURCEHEAT SOURCE
POWER SUPPLY
MAGNET
ELECTRONICS RACK
COMPUTER
(2) TWO ELECTRONIC RACKS
LINEAR MOTOR
X-Y STAGES
(2) TWO ELECTRONIC RACKS
LINEAR MOTOR
X-Y STAGES
COMPUTER
COMPUTER
PRINTER
ELECTRONIC RACK
COMPUTER
(3) THREE PEOPLE
TOTALTOTAL
COOLING LOADS (BTU/HR)COOLING LOADS (BTU/HR)
LCW WATER
LCW WATER
5,115
1,705
10,230
3,410
3,410
10,230
1,783
3,410
1,705
1,705
1,705
5,115
1,705
1,023
= 52,251= 52,251
1313
1010
7777
99
5555
6A/6B6A/6B
11 22 33 44
1212
1111
8A/8B8A/8B
MMF HEAT SOURCE MMF HEAT SOURCE LOCATIONLOCATION
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MAKE-UP AIR UNIT (MAU-1)
PREHEATING COIL
FILTER SECTION 65%
SUPPLY FAN
COOLING COIL
HEATING COIL
HUMIDIFIER
OUTSIDE OUTSIDE AIRAIR
SUPPLY SUPPLY AIRAIR
TO AHU-1TO AHU-1
FILTER SECTIONFILTER SECTION 30%
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MAKE-UP AIR UNIT (MAU-1)
OUTSIDE AIROUTSIDE AIR
2626°F WINTER°F WINTER
95°F SUMMER95°F SUMMER
2,000 CFM 2,000 CFM
SUPPLY AIRSUPPLY AIR
7070°F°F
2,000 CFM2,000 CFM
QQ11= 1.08 * CFM * = 1.08 * CFM * ΔTΔT
Q1 = SENSIBLE HEAT (BTU/HR)
CFM = CUBIC FEET PER MINUTE
ΔT = TEMPERATURE DIFFERENCE (°F)
PREHEATING COIL (PREHEAT)
= 1.08 * 2,000 * 10 = 21,600 BTU/HR
HEATING COIL = 1.08 * 2,000 * 36 = 77,760 BTU/HRCOOLING COIL (Q1) = 1.08 * 2,000 * 32 = 69,120 BTU/HR (7 DEGREE MOTOR LOAD)COOLING COIL (Q2) (DEHUMIDIFICATION)
= 0.68 * 2,000 * 12 = 16,320 BTU/HR (ΔG = 12)
TOTAL COOLING = 69,120 + 16,320 = 85,440 BTU/HR = APPROX. 7½ TONS COOLING
HUMIDIFICATION = 69 LBS/HR
HOT WATER GPM = 9.9 GPM ~ 10 GPM
CHILLED WATER GPM
= 17 GPM85,4405,000
CFM*60*ΔG13.5*7,000
2,000*60*5413.5*7,000
=
=
=
99,36010,000
=
QQ22= 0.68 * CFM * = 0.68 * CFM * ΔGΔG
Q2 = LATENT HEAT (BTU/HR)
CFM = CUBIC FEET PER MINUTE
ΔG = GRAIN/LB DIFFERENCE (°F)
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9
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MAKE-UP MAKE-UP AIRAIR
7070°F°F
AIR HANDLING UNIT (AHU-1)
FILTER SECTION
TEMPERED HOT WATER COIL
TEMPERED CHILLED WATER COIL
SUPPLY FAN
RETURN AIRRETURN AIR
SUPPLY SUPPLY AIRAIR
69.8569.85°F°F
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AIR HANDLING UNIT (AHU-1)
MAKE-UP MAKE-UP AIR AIR 7070°F °F 55%RH55%RH
2,000 CFM2,000 CFM
RETURN AIR 73RETURN AIR 73°F °F 22,000 CFM22,000 CFM
SUPPLY AIR SUPPLY AIR 69.8269.82°F°F
24,000 CFM24,000 CFM
AIR FLOW CALCULATION
(INTERIOR LOADS)
LIGHTING = 3,410 BTU/HR
PEOPLE = 454 BTU/HR
ROOF = 675 BTU/HR
TOTAL = 4,539 BTU/HR
CFM =4,539
1.08*0.18= 23,348 CFM ~ 24,000 CFM
SURROUNDING AREA EQUIPMENT LOADS
EQUIPMENT = 52,251 BTU/HR
LIGHTING = 8,000 BTU/HR
ROOF = 1,000 BTU/HR
TOTAL = 61,251 BTU/HR
SURROUNDING AREA TEMPERATURE RISE
ΔT =61,251
1.08*0.7*24,000= 3°F
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AIR HANDLING UNIT (AHU-1) CONT.
MAKE-UP MAKE-UP AIR AIR 7070°F °F 55%RH 55%RH
2,000 CFM2,000 CFM
RETURN AIR 73RETURN AIR 73°F °F 22,000 CFM22,000 CFM
SUPPLY AIR SUPPLY AIR 69.8269.82°F°F
24,000 CFM24,000 CFM
COOLING LOADS
EQUIPMENT = 52,251 BTU/HR
LIGHTING = 8,000 BTU/HR
ROOF = 1,000 BTU/HR (0.033 * 25.1224 = 1,000 BTU/HR)
FAN HEAT = 24,000 * 1.08 * 2.45 = 63,504 BTU/HR (20 HP)
TOTAL = 124,755 BTU/HR / 12,000 = 10.4 TONS (TCW COIL)
GPM =BTU/HR
500 * ΔT= 83 GPMΔT = 3°C =
124,755
1,500
REHEAT COIL = 24,000*1.08*3 = 77,760 BTU/HR (THW COIL)
ΔT=20°F = 7.7 GPM =GPM 77,760500*20
ΔT=4°F = 38 GPM =GPM
HEATING LOADS
77,760500*4
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MMF FLOOR LAYOUT (DIFFUSERS)
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BOILER 300,000 BTU/HR
CHILLER 45 TON
HOT WATER PUMPS
CHILLEDWATER PUMPS
HEAT EXCHANGER
HEAT EXCHANGER
TEMPERED HOT
WATER PUMPS
TEMPERED CHILLED WATER PUMPS
MAU-1
AHU-1
MMF FLOW DIAGRAM MMF FLOW DIAGRAM
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AIR HANDLING UNIT (AHU-2)
SUPPLY SUPPLY AIRAIR
OUTSIDE OUTSIDE AIRAIR
FILTER SECTION 30%
FILTER SECTION 65%
SUPPLY FAN
COOLING COIL
HEATING COIL
HUMIDIFIER
RETURN AIRRETURN AIR
VAV-1VAV-1
VAV-2VAV-2
VAV-3VAV-3
VAV-4VAV-4
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AIR HANDLING UNIT (AHU-3)
OUTSIDE OUTSIDE AIRAIR
SUPPLY SUPPLY AIRAIR
FILTER SECTION 30%
FILTER SECTION 65%
COOLING COIL
HEATING COIL
SUPPLY FAN
FILTER SECTION
RETURN AIRRETURN AIR
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CHILLER 45 TON
BOILER 300,000 BTUHR
AHU-2AHU-3
MAU-1 AHU-1
HEAT EXCHANGER
HEAT EXCHANGER
TEMPERED CHILLED WATER PUMPS
TEMPERED HOT WATER PUMPS
HOT WATER PUMPS
CHILLED WATER PUMPS
FLOW DIAGRAM
