Building Energy Software Tools
Formerly hosted by US Dept. of Energy    

Heat Pump Design Model

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Research tool for use in the steady-state simulation and design analysis of air-to-air heat pumps and air conditioners. The program can be used with most of the newer HFC refrigerants as well as with HCFCs and CFCs. The standard vapor-compression cycle is modeled with empirical representations for compressor performance and first-principle region-by-region modeling of the heat exchangers.

An online Web version is available that can be used with default configurations or with user-specified component and operating parameters for analyzing the performance of single-speed, air-to-air equipment. User configurations can be saved for later use.Parametric analyses can be made and performance trends plotted online.

See sample pages. Keep in mind these are only sample pages so the links and buttons will not work.

Expertise Required: 

Moderate-to-high level of technical understanding of vapor-compression heat pumps to use effectively.

Audience: 

Public and private research/consulting organizations, research and development engineers of air-conditioning and heat pump equipment companies, university engineering faculty and graduate students.

Input: 

Compressor performance map, heat exchanger and (optionally) flow control design information. Defaults are provided to run sample case for design capacity cooling or heating condition. HTML-forms-based input that can be locally saved for later reuse.

Output: 

Summary cycle diagrams of operating conditions, component sizing and performance, and charge requirements; online x-y, contour, and 3-D surface plots and spreadsheet importable data sets of parametric results; user-selectable levels of text output.

Strengths: 

Predicts EER, capacity, air- and refrigerant-side conditions for cooling or heating operation with first-principles heat exchanger modeling; handles a variety of refrigerants; will size flow control devices given heat exchanger (HX) design exit conditions; useful in studying the general performance trends when varying HX design parameters (with or without a fixed design capacity) and operating conditions (with or without a fixed refrigerant charge and flow control); moderate accuracy with fast execution; user-tuneable; two-variable parametrics capability.

Country: 
United States
Major Capabilities: 
Parametrics and Optimization
Detailed Component Simulation
Keywords: 
heat-pump
Language: 
English
Platform: 
Web/Saas
Pricing: 
Free
Help and Support: 
Free Email Support
Last Software Update: 
20 July 2013
Last Entry Update: 
18 November 2017
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