The goal of this project was to determine if the addition of a cascade cycle to a commercial air to air source heat pump would increase the efficiency of the unit in low ambient temperatures.This project explores heat capacities and efficiencies of heat pumps as temperatures drop below 25 degrees F. The testing acquired anemometer and thermocouple readings and simulated the effects of a cascade cycle on an R-410a Trane 5 ton Precedent Heat Pump unit utilizing a scroll compressor and normal operating conditions of 45/130/15 (saturated suction temperature/ saturated discharge temperature/degrees of superheat) at 3-phase nominal voltage 208-240V. Engineering Evaluation Software (EES) was utilized to simulate the heat pump model with and without the cascade cycle.

• This report represents the work of one or more WPI undergraduate students submitted to the faculty as evidence of completion of a degree requirement. WPI routinely publishes these reports on its website without editorial or peer review.

Creator

• Cohen, Brandon Edmund
• Hull, Michelle Evelyn
• Barthold, Stephan W.
• Wilson, Tyler Robert

Publisher

• Worcester Polytechnic Institute

Identifier

• E-project-042419-134953

Advisor

• Daniello, Robert
• Scarpino, Christopher

Year

• 2019

Sponsor

• Trane

Date created

• 2019-04-24

Resource type

• Major Qualifying Project

Major

• Mechanical Engineering

Rights statement

• In Copyright

License

• All rights reserved