This paper aims at analyzing the opportunities for peak load shaving in district heating systems using a physical simulation tool. Using the proposed approach it is possible to examine the effects on the total load that can be obtained by adopting management strategies such as variation in the thermal request pro fi le of the buildings or installation of local storage systems. The model is applied to the optimization of start-up time of the heating system in the buildings located in a selected distribution network. Proper constraints are introduced in order to avoid signi fi cant effects on the indoor temperatures of the buildings, so that acceptable comfort standard can be guaranteed. The primary energy consumption at the thermal plants is considered as the objective function to be minimized. An application to a portion of the Turin district heating network, which is the largest network in Italy, is presented. Results show that even in the case only small changes are applied, reductions in annual primary energy consumption up to 0.4% can be obtained without any additional investment cost. This opens the door larger positive impact through implementation of more complex operating strategy.

Peak-shaving in district heating systems through optimal management of the thermal request of buildings / Guelpa, Elisa; Barbero, Giulia; Sciacovelli, Adriano; Verda, Vittorio. - In: ENERGY. - ISSN 0360-5442. - 137:(2017), pp. 706-714. [10.1016/j.energy.2017.06.107]

Peak-shaving in district heating systems through optimal management of the thermal request of buildings

Guelpa, Elisa;Sciacovelli, Adriano;Verda, Vittorio
2017

Abstract

This paper aims at analyzing the opportunities for peak load shaving in district heating systems using a physical simulation tool. Using the proposed approach it is possible to examine the effects on the total load that can be obtained by adopting management strategies such as variation in the thermal request pro fi le of the buildings or installation of local storage systems. The model is applied to the optimization of start-up time of the heating system in the buildings located in a selected distribution network. Proper constraints are introduced in order to avoid signi fi cant effects on the indoor temperatures of the buildings, so that acceptable comfort standard can be guaranteed. The primary energy consumption at the thermal plants is considered as the objective function to be minimized. An application to a portion of the Turin district heating network, which is the largest network in Italy, is presented. Results show that even in the case only small changes are applied, reductions in annual primary energy consumption up to 0.4% can be obtained without any additional investment cost. This opens the door larger positive impact through implementation of more complex operating strategy.
2017
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2698419
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo