Four Points Engineering and Design Project 99.04: Heat Pump Design for Whalen Co. FPED Team Members: Ricardo Blackett, Andy Parke, Scott Quirico, Brian Zigmond

Presentation Agenda 1. Introduction and background 2. Method a. Concept Generation b. Concept Selection 3. Schedule and Budget

Background 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 Approach 1. Eliminate standing water 2. Decrease unit’s noise level 3. Improve circulation in the two-room units Present FPED’s Solution to Whalen Co. Develop Concept Produce a unit that: eliminates standing water is quieter has improved room circulation

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

Customers and Wants

System 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 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 Values

Concept Generation

Partial 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 Selection Insert –high manufacturing cost –long time to fabricate

Final Drain Pan Concept

Sound Attenuation Concept Selection 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 Selection 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 Concept Duct underneath condenser coil

Overall Final Concept

Past Schedule

Future Schedule

Estimated Engineering Time FPED –4 hours building –24 hours testing The Whalen Co. –5 additional hours to implement final concept

Project Budget Total Budget = $5000  Expenditures to date  gas for trip to Whalen$11.31  photographs taken during visit$ 9.29  model materials(foam core)$ 9.99  Future Expenditures  decibel meter$45.00  battery 12 V$10.00