Abstract

This paper introduce the transient model of the propane heat pump cycle. Heat pump cycle model includes: - compressor model - condenser model in lumped parameters - evaporator model in lumped parameters - expansion valve model - heat source model (cooling chamber) - PID control system for heat recovery from superheated refrigerant vapour. Model allows estimate inertia of the heat pump cycle with system of the heat recovery from superheated propane vapor

Highlights

  • Some theoretical transient models are used in refrigeration and heat pump technology

  • It was found that the semi empirical model proposed in [7] can be satisfactorily applied to the dynamic simulations of the whole refrigeration system

  • Paper [9] presents a dynamic model of a transcritical CO2 ejector expansion refrigeration cycle

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Summary

INTRODUCTION

Some theoretical transient models are used in refrigeration and heat pump technology. A dynamic model of air-to-water dual-mode heat pump with a screw compressor is presented in [2]. The paper [3] presents two numerical models to simulate the transient and steady state behavior of a vapor compression refrigeration system. The [17] paper described a hybrid dynamic model for transient simulation of refrigeration systems as well as dynamic experiments that have been performed on an air/water heap pump. In this configuration, the temperature of superheated vapor depends from air mass flow through condenser. Changing the heat load was taking place in an additional heat exchanger that was installed as a heat recovery system from superheated steam

MODEL OF THE HEAT PUMP
CALCULATION RESULTS
CONCLUSIONS
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