Four Points Engineering and Four Points Engineering and DesignDesign

Project 99.04: Heat Pump Design for Whalen Co.

FPED Team Members:Ricardo Blackett, Andy Parke, Scott Quirico, Brian

Zigmond

Presentation AgendaPresentation Agenda

1. Introduction and background 2. Method a. Concept Generation b. Concept Selection3. Schedule and Budget

BackgroundBackground

• The Whalen Co. – HVAC manufacturer

• hospitals, apartment complexes, hotels– Boost sales of vertical water source heat pump

• offer additional options• offer improved health quality

Mission and ApproachMission and Approach

1. Eliminate standing water

2. Decrease unit’s noise level

3. Improve circulation in the two-room units

PresentFPED’s Solution

to Whalen Co.

DevelopConcept

Produce a unit that:• eliminates standing water• is quieter• has improved room circulation

ConstraintsConstraints

Size and geometry of unit and enclosure.Regulatory commission specifications. (ARI, UL)

Customers and WantsCustomers and Wants

S alesfoo tp rin t

E n g in eerin gc ircu la tion

P rod u c tionfab rica tion

W h a len E xecu tivefoo tp rin t

System BenchmarkingSystem Benchmarking

• Trane: Well insulated unit gives quiet performance, removable drain pan for easy maintenance.

• ClimateMaster: Removable chassis for easy maintenance, sound-suppressing baffles on intakes.

Functional BenchmarkingFunctional Benchmarking

• Drain Pan– sheet metal guide– positive pitch– pump– evaporation

• Sound– neoprene pads– isolate– insulate– external baffles

• Two Room Draw– return grilles– sheet metal ducting

Quality Metrics & Target ValuesQuality Metrics & Target Values

Metric Target Value

% Footprint Change 0%

Number of additionalparts

12

Time of fabrication 1.5 hours total

Concept GenerationConcept Generation

attach to co il

D ra in P anm in im a l p a rts & tim e

in te rn a l d u c tin g

Two R oomfoo tp rin t & p arts

in te rn a l to c ab in e t

S ou n d S u p ress ionfoo tp rin t & t im e

3 K ey M etricsC rit ic a l F u n c tion s

Partial Concept GenerationPartial Concept Generation

• Sound– diffusion ducting– isolation– insulation

• Drain Pan– sloped insert– channel

• Two Room Air– above the coil– below the coil– adjacent to coil– rotate coil

Drain Pan Concept SelectionDrain Pan Concept Selection

• Insert– high manufacturing

cost– long time to fabricate

Final Drain Pan ConceptFinal Drain Pan Concept

Sound Attenuation Concept Sound Attenuation Concept SelectionSelection

• Diffusion Ducting– Not applicable

• Insulate and Isolate– every metal to metal

vibration point– double insulate cabinet

• Testing– which points need isolation– optimum insulation

thickness

Two Room Draw Concept Two Room Draw Concept SelectionSelection

• Rotate Coil– changes footprint

• Above Coil– difficult to

maintain/repair

• Adjacent to Coil– additional parts– additional

manufacturing costs– minimal air changes

per hour

Final Two Room Draw ConceptFinal Two Room Draw Concept

• Duct underneath condenser coil

Overall Overall Final Final ConceptConcept

Past SchedulePast Schedule

Future ScheduleFuture Schedule

By the …. We will …..

1st week in December Have a scale model of fan coil and presented to NCDA

2nd week in December Install unit for testing

3rd week in December Obtain sound and drip data and analyzed.

1st week in January Made prototypes for two room draw and drain pan

2nd week in January Tested the protoypes with actual unit and obtain data

3rd week in January Prepared a complete solution for Whalen

4th week in January Evaluate feedback from Whalen with advisor

1st week in February The possibilities of mass production discussed.

Estimated Engineering Time Estimated Engineering Time

• FPED– 4 hours building– 24 hours testing

• The Whalen Co.– 5 additional hours to implement final concept

Project BudgetProject Budget

•Total Budget = $5000

Expenditures to dategas for trip to Whalen$11.31photographs taken during visit $ 9.29model materials(foam core) $ 9.99

Future Expenditures decibel meter$45.00battery 12 V$10.00