DOE EERE Research Reports

"Analytical models" and "design tools" are mostly nebular terms that are best understood as merely "computer programs." The operation of each component in a heat pump; the compressor, fan and blower motors, heat exchangers, expansion devices, pressure drops can all be characterized by algorithms that reflect the underlying physical processes going on in the machine or through empirical correlations developed from carefully constructed and analyzed laboratory measurements. Computer programs have been developed that use these algorithms and/or correlations to provide tools for estimating either total system performance or performance of a single component (e.g. condenser or evaporator). The reports that document these computational tools are listed here.

1. Benchmark Performance Analysis of an ECM-Modulated Air-to-Air Heat Pump with a Reciprocating Compressor
2. A Compressor Simulation Model with Corrections for the Level of Suction Gas Superheat
3. A Computer Model for Air-Cooled Refrigerant Condensers with Specified Refrigerant Circuiting
4. A Computer Simulation of Steady-State Performance of Air-to-Air Heat Pumps
5. The Effect of Void Fraction Correlation and Heat Flux Assumption on Refrigerant Charge Inventory Predictions
6. Heat Pump Modelling: A Progress Report
7. Impact of Refrigerant Property Uncertainties on Prediction of Vapor Compression Cycle Performance
8. Influence of HX Size and Augmentation on Performance Potential of Mixtures in Air-to-Air Heat Pumps
9. Method for Estimating the Energy Efficiency Ratio of Mixed System Air Conditioners and Heat Pumps
10. Modeled and Measured Effects of Compressor Downsizing in an Existing Air Conditioner/Heat Pump in the COoling Mode
11. The Oak Ridge Heat Pump Models I. A Steady-State Computer Design Model for Air-to-Air Heat Pumps
12. The Oak Ridge Heat Pump Models: III. Design Tools for Heat Pump Development
13. The Oak Ridge Heat Pump Design Model: Mark III Version Program Documentation
14. The ORNL Modulating Heat Pump Design Tool - Mark IV User's Guide
15. The Simulation and Performance of a Centrifugal Chiller
16. A Steady-State Computer Design Model for Air-to-Air Heat Pumps