ritter arena improvements
DESCRIPTION
Ritter Arena Improvements. Joe Cooper Dan Crossen Diego Guinea Alex Peterson Mike Walsh. Projects 1 & 2: Reclaiming Wasted Energy. Dan & Mike. Project 1: Using Wasted Heating for Heating Needs. Daniel Crossen. Current System. 65-90°F. 70-95°F. - PowerPoint PPT PresentationTRANSCRIPT
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Ritter Arena Improvements
Joe CooperDan Crossen
Diego GuineaAlex Peterson
Mike Walsh
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Projects 1 & 2: Reclaiming Wasted Energy
Dan & Mike
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Project 1: Using Wasted Heating for Heating Needs
Daniel Crossen
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Concrete
Underslab
Ice Surface
Cooling Tower
Heat out from Pumps
Heat Exhaust
14°F 10°F
32°F 36°F
50°F 60-90°F
Current System
Semi-warm water leaving pumps/entering cooling towers at 70-95° F and leaving cooling towers/entering pumps (for cooling) at 65-90°F
Cold water leaving pumps/entering underslab (for warming of ground)at 36° F and leaving underslab/entering pumps at 32°F
Currently, these two systems do not interact, other than through the pumps. However, the semi-warm water is only used to cool the pumps, and does not come into contact with the cold water at all.
70-95°F65-90°F
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Concrete
Underslab
Ice Surface
Cooling Tower
Heat out from Pumps
Heat Exhaust
14°F 10°F
32°F 36°F
50°F 60-90°F
Current System (cont’d)
RIT pays to cool down this water from 65°-90°F to 45°-55°F while…
…in the next room, we pay to heat up this water from 32° to 36°F
They are on two separate loops, never coming into contact, and energy is wasted moving their temperatures in opposite directions.
70-95°F65-90°F
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Concrete
Underslab
Ice Surface
Cooling Tower
Heat out from Pumps
Heat Exhaust
Heat exchanger
System Overview: Using Waste Heat for Heating
Take the output of this system (65-90°F)
And take the output of this system (32 °F)
And put them through a heat exchanger to utilize the waste heat/cold from one system to heat/cool the other system
70-95°F
65-90°F 70-95°F65-90°F
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Functional Flow Diagram Dan Crossen RIT Campus Improvements Group
Wasted Heat/Cold Water Usage Functional Decomposition
Electric power in Water @ 50-70°F
Warm (65-90°F) water
Water @ 36°F
Cold (32°F) water Waste heat from pump
Temperature Outputs
Vary pump speed
Vary pump speed
Pump water to exchanger
Pump water to exchanger
Exchange Heat
Sense Temperature
(input)
Sense Temperature
(output) Calculate
appropriate pump speed
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Functional InterfacesRIT Campus Improvements Warm/Cold Water Heat Exchanger Dan Crossen
Warm water Input
Sense Temperature (warm water)
Cold Water Input
Sense Temperature (cold water)
Vary Pump Speed
Pump Water to Exchanger
Exchange Heat
Cold Water Output
Warm Water Output
Fit Into Space
thermometer
data
data
data
data
pipe connection
data
pipe connection
pipe connection
pipe connection
pipe connection
thermometer
thermometer
thermometer
size
size
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Benchmarks
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Specifications / Metrics Source Function Specification (metric) Unit of
Measure Marginal
Value Ideal Value
Comments/Status
S1 CN6,7 System Warm Water Temp Input °F 70-95 S2 CN6,7 System Warm Water Temp Output °F 65-90 S3 CN6,7 System Cold Water Temp Input °F 32 S4 CN6,7 System Cold Water Temp Output °F 36 S5 CN1,3 System Pump energy usage KW 5 1 S6 CN6 System Pump flow Rate max gpm 6.2 S7 CN1,3 System Heat loss from pipes KW 1 0 S8 CN7 System Pump time constant sec <1 S9 CN1,3 System Pump efficiency % 60 100
S10 CN5,6 System Size of Equipment inches 24x24
x12 12x12
x12
S11 CN2 System System cost $$ <=
$1000
S12 CN5,6 System Weight lbs 60 40
S13 CN7,8 System Operating conditions: temperature °F 32-95 Ambient indoor ice rink S14 CN7,8 System Operating conditions: relative humidity % 0-100 Ambient indoor ice rink
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House Of QualityLow
er cost
of heating/cooling
Cost of modific
ations less
than money saved
Modifications must
be sustain
able (green)
Aestheticall
y pleasing
Safe for
human
operatio
n
Can be integrated into current system
Maintain
effective
running conditio
ns
Low mai
ntenanc
e
Row Tota
l
Column
Total
Row +
Column
Total
Relative
Weight
Lower cost of heating/cooling C R R C C R R 4 0 4 14%Cost of modifications less than money saved R R C C R R 4 1 5 18%Modifications must be sustainable (green) R C C C C 1 0 1 4%
Aesthetically pleasing C C C C 0 0 0 0%
Safe for human operation R R R 3 4 7 25%Can be integrated into current system R R 2 4 6 21%
Maintain effective running conditions C 0 2 2 7%
Low maintenance 0 3 3 11% Column Total 0 1 0 0 4 4 2 3 28 100%
House of Quality
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Customer Needs Final Percentage Ranking
Safe for human operation 25%
Can be integrated into current system 21%Cost of modifications less than money saved 18%
Lower cost of heating/cooling 14%
Low maintenance 11%
Maintain effective running conditions 7%
Modifications must be sustainable (green) 4%
Aesthetically pleasing 0%
House of Quality Summary
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StaffingDiscipline How
Many? Anticipated Skills Needed
EE 0
ME 3
ME1: Take care of the design of the flow of fluids. Model the flow of the fluid based off of given temperatures and properties. Choose applicable pump(s). ME2: Thermal modeling of the fluid flow. Analytically obtain flow needed to sustain desired output of 36°F based on input temperatures. ME3: Labview: Construct program to take in the input of the temperatures and output desired flow rates for both warm and cold water. Output the <input temps>, <output temps>, <warm flow rate>, and <cold flow rate> for data analysis.
CE 0
ISE 1
ISE1: Make sure that it will fit in the designed space. Construct a general design that will meet the size requirements obtained from observing usable space in the ice rink.
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Project 2: Using Waste Cooling for Air Conditioning
Mike Walsh
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Waste Cooling for Air Conditioning
Concrete
Underslab
Ice Surface
Cooling Tower
Heat out from Pumps
Heat Exhaust
14°F 10°F
32°F 36°F
50°F 60-90°F
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Functional Decomposition
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BENCHMARKING
Cornell University: Lake Source Cooling Project (LSC)
REMKO RVS H Series
SeaWater Air Conditioning(SWAC)
Scale Provides Cooling for Cornell Campus
The system shown is a small scale, but they do have much larger versions
Cooling for Factories, power plants, universities, etc.
# Heat Exchangers 7 n/a Varies with system size
Total Heat Exchanger Surface Area
102,000 feet square n/a Varies with system size
Water used 39 °F Tap Water Sea or Lake Water, temp varies with depth
Energy Savings 80% 5.8-14.7 kW 80% more than conv. AC(Capital is 60% higher)
Other Notes Almost completely replaced mechanical refrigeration on campus
Can be used in winter for heating as well
5-10 year payback
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Specifications / MetricsSource Function Specification (metric)
Unit of Measure Marginal Value Ideal Value
Comments/Status
S1 CN6,7 System Ambient Air Temp Input °F 70-95
S2 CN6,7 System Cooled Air Temp Output °F 65-90
S3CN6,7 System Underslab Coolant Cold Side
Temp Input°F 32
S4CN6,7 System Underslab Coolant Warm Side
Temp Output°F 36
S5 CN1,3 System Pump energy usage KW 5 1-5
S6 CN6 System Pump flow Rate max gpm 6.2
S7 CN1,3 System Heat loss from pipes KW 1 0-2
S8 CN7 System Pump time constant sec <1
S9 CN1,3 System Pump efficiency % 60 60-100
S10
CN5,6 System Size of Equipment inches 24x24x12
12x12x12
S11
CN2 System System cost $$ <=$1000
S12
CN5,6 System Weight lbs 60 40
S13CN7,8 System Operating conditions:
temperature°F 32-95 Ambient indoor
ice rink
S14CN7,8 System Operating conditions: relative
humidity% 0-100 Ambient indoor
ice rink
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Discipline How Many? Anticipated Duties
ME 4
ME1: Design Heat Exchanger, Focus on Validation of Test Results, CAD workME2: Design Heat Exchanger, CAD work, Build Heat ExchangerME3: Build Heat Exchanger, Focus on Validation of Test ResultsME4: Focus on System Integration, Focus on Validation of Test Results
ISE 1 ISE1: Focus on System Integration Aesthetics
Staffing
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Presented Design to Customer Customer thought it would be a great idea
for savings, but probably impractical unless the savings were immense.
Requires 400+ feet of piping 1-1/4” Lines◦ Also would require stronger pumps for underslab
system.◦ Not really in the scope of MSD I or II◦ Perhaps MSD VIII
Customer Feedback
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Arena SchematicAir
Handler 1
Air Handler
3
Air Handler
2
Underslab SystemAt least 200 feet of piping
in each direction Corner Crew
Air Handler
4
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Projects 3& 4: Using the Ice Pile
Joe & Diego
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Project 3: Using the Ice Pile for Air
ConditioningJoseph Cooper
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Functional Decomposition
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Benchmarking
Project Goals:• Same output as Ice Bear• Energy usage without
freezing ice.
Scaled Goals:• 1/5 size of Ice Bear unit• Similar output to
portable a/c unit
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Metrics
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AB
C
Ice In
Warm Air In
Cool Air Out
A) Ice box/container (~1/2 total unit)B) Air passage/duct w/ heat exchanger (~1/4
total unit)C) Pump/component area (~1/4 total unit)
0.31m0.51 m
0.25m
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House of Quality
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Discipline How Many? Anticipated Duties
ME 5
ME1: 1) Establish heat exchanger requirements/design between ice and coolant
ME2: 1) Define the Ice box design, working with ME1
2) Determine the pump required for purchase
ME3: 1) Establish heat exchanger requirements for water to air in order to find one (or more) to purchase
2) Define air flow requirements and research correct fan to purchase
ME4: 1) Design layout of unit and mounting of components (progressive
throughout project)
ME5: 1) Define insulation requirements using knowledge from ME1-3
2) Design power distribution to powered components
Staffing
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Customer would like to find purpose for meltwaterUsing “Heat Pipes” with a pre charged coil that will migrate depending on the delta-V between cold & hot side.Is interested in the future possibility of using snow during the winter as well.
Customer Feedback
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Project 4: Using the Ice Pile for Pipe
CoolingDiego Guinea
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System Overview
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Functional Decomposition
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Function Interface
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BenchmarkCooling Coil Temperature Sensor
Temperature Range: -50oC to 200oC
Applicable flow velocity: Less than 4 m/s
Time Constant: 50s
Heat Exchanger
Flow Rate: 800 GPM
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House of QualityEngineering Functions & Metrics
Customer RequirementsCustomer Weights
Ice Input from Zamb
oni
Warm Water Input Flow
Warm Water Input Temperatur
e
Cold Water Outpu
t Temperatur
e
Tank (Heat Exchanger) Size
Pump Flow Rate
Pump Flow
Adjustment Time
Melted Ice Temperatur
e
Melted Ice
Output Flow
Electrical
Power
Sensor +
Electrical
Lifetime
Heat Exchanger Lifetime
Dimensions
Low maintenance cost 4% 9 Low prototype cost for a scaled design 1% 9 9 Realistic payback period 3% 3 9 9 9 1Safe for human operation 7% Easy intuitive use 4% Easy access for maintenance 6% 3Can be integrated to current cooling tower system 13% 9 9 Clean appearance 7% 9 9Easy acces to ice storage 7% 3 Durable under hard working conditions 9% 1Low downtime when being integrated 11% 3 1 3Able to use at the same time with the cooling towers 10% 9 9 9 Provide efficient support to cooling tower 12% 9 3 Holds full ice load from zamboni 0% 9 Able to run all year round 1% 1 Easy removal of water from melted ice 5% 3 9
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Discipline How Many? Anticipated Duties
EE 1 EE 1: Design the temperature reading system and integrate to the project working together with the CE 1.
ME 3
ME 1: Determine heat exchange rates between ice and water, water flow rates and the requirements the system needs do have to fulfill the specifications in water temperature.
ME 2: Design the ice container and the heat exchanger, according to the specifications working together with ME 1 to validate theoretical calculations.
ME 3:Model the system using computer-based software. Collaborate with ME 1 and ME 2. Determine and acquire the components needed in the system.
CE 1
CE 1: Elaborate system that will command water flow according to the temperature readings, and the water flow specifications determined by the team. Work together with the EE 1.
ISE 1
ISE 1:Elaborate design according to the requirements so the design fits the designated space. Work on ergonomic and human factors for the system and focus on system integration.
Staffing
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Project 5: Monitor and reduce CO emissions in
Ritter ArenaAlex Peterson
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Functional Decomposition
CO Level
Air Temperature
Fan Speed
Emissions Log File
Parameters
Fan Health
Sensor Health
Check Hardware
Availability
Read all sensors
Load log and
parameter files
Write data and check against
appropriate range
Output results and warnings
Make adjustments if needed
Check if adjustments happened
Hardware log Health
Hardware log Health
Emissions Log File
Fan Speed
Check against CO2 required ventilation
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Benchmarking
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Metrics Source Function Specification (metric) Unit of
Measure Marginal
Value Ideal Value Comments/Status
S1 CN2,CN3 Monitoring Maximum 10-minute CO level in arena ppm 15 0 EPA: 9ppm for 8hr, 35ppm for 1hr max S2 CN12 Monitoring Average air temperature in arena C S3 CN12 Monitoring Relative humidity in arena % 22% From Rich Stein S4 CN2 Monitoring Sampling rate of sensor seconds 40 20
S5 CN6,CN7 Monitoring Sensor Interface - Computer, Air Controls
Computer, Air Controls Must do both for fan control and logging
S6 CN11 Monitoring Sensor Uptime % 99.6 100 S7 CN4, CN9 Monitoring Manual Override - Yes Yes If system fails, reverts to CO2+Positive Pressure S8 CN5 Logging Value log file length days 7 30 Offload at end of month to database S9 CN5 Logging Event log file length months 12 all All alarms/threshold events should be recorded S10 CN1 Installation Sensor Cost $ 400 300 Purchased part S11 CN1 Installation Interface Cost $ 100 50 Designed circuit S12 CN10 Installation Downtime during installation days 2 1 Ice down in June, no Zamboni or games then S13 CN8 Installation Design Lifespan years 10 20 In-line with current equipment
S14 CN2 Analysis Handheld CO detectors units 1 4 Would like to measure at 4 corners, but would use entire budget
S15 CN2 Analysis Data Points Taken/Run points 20 100 Depends on run length and sampling rate of detector
S16 CN2 Analysis Handheld Detector Data Logging - No Yes Could be manually recorded S17 CN2 Analysis Number of Runs units 2 4 Spread out like a game
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House of Quality
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Discipline How Many? Anticipated Duties
ME 2
1,2- Obtain arena emissions and airflow data1- 1st order transient model of airflow in arena1- Compare to collected data2- Design mounting bracket for sensor and interface circuit2- Design enclosure for interface circuit
EE 1Design circuit to convert mA level DC output from sensor to interface with air handler control system. Research current air handler control system.
CE 1 Computer interface chip selection, develop basic program to log emissions data
Staffing
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Use handheld detector(s) to measure Map arena well to find hotspots of emissions Place sensor in worst part Interface with controller may be possible if
bill of materials and design complete
Customer Feedback
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Questions?