 Variable speed drive heat pump performanceS.M. Jeter, W.J. Wepfer, G.M. Fadel, N.E. Cowden and A.A. Dymek Energy, 1987, vol. 12, issue 12, 1289-1298 Abstract: Development of a simulation model for variable speed heat pumps is described and representative results are presented. The system under consideration employs a hermetic compressor driven by an integral three-phase induction motor. Compressor speed can be modulated hy varying the frequency of the current synthesized by an inverter which supplies power to the system. A modular simulation system is used wherein an executive program manages the input and output of data and coordinates the numerical simulation procedure. The executive program calls various subroutines which model the system components, evaluate thermodynamic properties, and perform numerical tasks. Simulation results demonstrate that the variable speed heat pump has an improved COP at reduced frequency, desirable for enhancing energy conservation under part load conditions, and higher heating rates at high frequency, a useful feature for reducing supplementary resistance heat. The simulation program is used to generate performance data over a range of ambient conditions. These data are then used as the basis for seasonal energy consumption calculations performed using a temperature bin format. Date: 1987 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:12:y:1987:i:12:p:1289-1298 DOI: 10.1016/0360-5442(87)90037-5 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
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