Publication

DYNAMIC MODELING OF HEAT PUMP COMPONENTS AND CIRCUITS

2012
Student Projects

Abstract

The report describes the implementation of a radial micro-compressor in the dynamic modeling software PSE gProms, the development and the implementation of a two-phase flow pipe model, and the preliminary design of a two-phase flow dynamic heat exchanger model. The compressor model is applied to an oil-free domestic heat pump radial compresor developed in the Industrial Energy Systems Laboratory at École Polytechnique Fédérale de Lausanne, Switzerland. The development of the different models is divided into three main parts which are, the selection of mathematical correlations that describe the behavior of each component’s behavior, the implementation in gProms, and the model validation. The work described in this paper aims to being used within a complete dynamic simulation of the domestic heat pump developed in the Industrial Energy systems Laboratory at EPFL.

Official source

https://infoscience.epfl.ch/entities/publication/f3dab9bb-4871-45f6-aec9-b274fee492fe

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2012
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/f3dab9bb-4871-45f6-aec9-b274fee492fe

About this result

Related concepts (32)

Heat pump

A heat pump is a device that uses work to transfer heat from a cool space to a warm space by transferring thermal energy using a refrigeration cycle, cooling the cool space and warming the warm space. In cold weather a heat pump can move heat from the cool outdoors to warm a house; the pump may also be designed to move heat from the house to the warmer outdoors in warm weather. As they transfer heat rather than generating heat, they are more energy-efficient than other ways of heating a home.

Air source heat pump

An air source heat pump (ASHP) is a type of heat pump that can absorb heat from outside a structure and release it inside using the same vapor-compression refrigeration process and much the same equipment as air conditioners but used in the opposite direction. Unlike an air conditioning unit, most ASHPs are reversible and are able to either warm or cool buildings and in some cases also provide domestic hot water. In a typical setting, an ASHP can gain 4 kWh thermal energy from 1 kWh electric energy.

Heat pump and refrigeration cycle

Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. A heat pump is a mechanical system that allows for the transmission of heat from one location (the "source") at a lower temperature to another location (the "sink" or "heat sink") at a higher temperature. Thus a heat pump may be thought of as a "heater" if the objective is to warm the heat sink (as when warming the inside of a home on a cold day), or a "refrigerator" or “cooler” if the objective is to cool the heat source (as in the normal operation of a freezer).

Related publications (12)

DYNAMIC MODELING OF HEAT PUMP COMPONENTS AND CIRCUITS

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