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**Harvard**

Monteyne, G., Javed, S. och Vandersteen, G. (2014) *Heat transfer in a borehole heat exchanger: Frequency domain modeling*.

** BibTeX **

@article{

Monteyne2014,

author={Monteyne, Griet and Javed, Saqib and Vandersteen, Gerd},

title={Heat transfer in a borehole heat exchanger: Frequency domain modeling},

journal={International Journal of Heat and Mass Transfer},

issn={0017-9310},

volume={69},

issue={February 2014},

pages={129–139},

abstract={This paper proposes a new frequency domain method to model the heat transfer between the injected/extracted heat and the temperature of the fluid exiting a borehole heat exchanger. The method is based on in situ measurements and focuses particularly on the short-term borehole heat transfer. It uses a rational function of the Warburg variable in the Laplace domain to model the borehole heat transfer. The rational model is transformed to a time domain model using inverse Laplace transformation. This time domain model makes it possible to calculate the temperature response on a random heat variation signal. The paper also demonstrates a new way to perform the classical thermal response test. Instead of injecting a constant amount of heat, the experiments have been performed using multiple short-duration heat injections. In this way, the obtained rational heat transfer model contains information about both the short- and the long-term heat transfer. The results obtained using the proposed modeling method are compared with those obtained from a state-of-the-art analytical method. The time domain model can be used to design a controller to optimize the performance of a Ground Source Heat Pump system, the efficiency of which depends strongly on the temperature of the fluid exiting the borehole.},

year={2014},

keywords={Heat transfer; Modeling; Borehole heat exchanger; Frequency domain; Modeling; Ground Source Heat Pump},

}

** RefWorks **

RT Journal Article

SR Electronic

ID 186268

A1 Monteyne, Griet

A1 Javed, Saqib

A1 Vandersteen, Gerd

T1 Heat transfer in a borehole heat exchanger: Frequency domain modeling

YR 2014

JF International Journal of Heat and Mass Transfer

SN 0017-9310

VO 69

IS February 2014

AB This paper proposes a new frequency domain method to model the heat transfer between the injected/extracted heat and the temperature of the fluid exiting a borehole heat exchanger. The method is based on in situ measurements and focuses particularly on the short-term borehole heat transfer. It uses a rational function of the Warburg variable in the Laplace domain to model the borehole heat transfer. The rational model is transformed to a time domain model using inverse Laplace transformation. This time domain model makes it possible to calculate the temperature response on a random heat variation signal. The paper also demonstrates a new way to perform the classical thermal response test. Instead of injecting a constant amount of heat, the experiments have been performed using multiple short-duration heat injections. In this way, the obtained rational heat transfer model contains information about both the short- and the long-term heat transfer. The results obtained using the proposed modeling method are compared with those obtained from a state-of-the-art analytical method. The time domain model can be used to design a controller to optimize the performance of a Ground Source Heat Pump system, the efficiency of which depends strongly on the temperature of the fluid exiting the borehole.

LA eng

DO 10.1016/j.ijheatmasstransfer.2013.10.015

LK http://dx.doi.org/10.1016/j.ijheatmasstransfer.2013.10.015

OL 30