Low energy refurbishment strategies for health buildings

Short, C. Alan; Cook, Malcolm; Cropper, Paul C.; Al-Maiyah, Sura

doi:10.1080/19401490903318218

Cited by 19 publications

(16 citation statements)

References 7 publications

(5 reference statements)

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“…Large buildings are the cause of a remarkable part of worldwide energy consumption, and keeping in mind that a huge part of large buildings is represented by public buildings, the development of customized refurbishment approaches is critical for the benefit of the whole society [1]. Evaluating refurbishment actions requires that an accurate model of the current and design scenarios of the building are setup.…”

Section: Introductionmentioning

confidence: 99%

Integration of Control Policies for Comfort Improvement in a Large Public Building

Vaccarini¹,

Piccinini²,

D’Angelo³

et al. 2017

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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Some public buildings, which date back to the 1980-1990s, often miss to comply with comfort basic requirements. Also, their energy consumption is often above thresholds posed by regulations presently in force. Hence, low-cost technology improvements for renovation with high return on investment is a good opportunity in order to limit the required budget. To this purpose, the integration of advanced control policies may optimize energy use of buildings with minimum hardware enhancement.In this paper, we evaluated the performances of an existing building that belongs to the campus of the Università Politecnica delle Marche (Ancona, Italy), and that is made of offices, teaching rooms, laboratories, a library and other public spaces. Thanks to an extensive monitoring of indoor comfort conditions, the main inefficiencies in terms of comfort were analyzed and a Dymola model of the actual building was worked out. Then, some energy improvement actions were assumed and tested by means of numerical simulation in the Dymola environment, and the benefits in terms of comfort and energy saving were estimated. Meanwhile, a BIM model of the building was built, regarding both the present status and each improved scenario, that allowed to perform a detailed cost estimation of each scenario. As a result, a cost-benefit analyses of each renovation scenario was performed and all the options were compared. The analyses showed that some renovation actions could be supported by energy savings with reasonable return on investment.

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Section: Introductionmentioning

confidence: 99%

Integration of Control Policies for Comfort Improvement in a Large Public Building

Vaccarini¹,

Piccinini²,

D’Angelo³

et al. 2017

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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“…Then, low cost tailored energy saving measures were identified and implemented, such as the integration of variable speed drives. The arrangement of a very detailed energy baseline is particularly critical in the case of complex strategic buildings, such as those ones owned by public administrations, where the development of a detailed consumption breakdown [2] can be quite demanding, due to the shortage of management systems. The only way auditors can accurately survey, diagnose inefficiencies and quantify energy savings that can be achieved by means of enhanced control is by means of tailored simulations.…”

Section: Introductionmentioning

confidence: 99%

Design and Simulation of a Fuzzy Supervisory Control System Integrated in a Small Public Building

Carbonari¹,

Meschini²,

Benedettelli³

2016

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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-Public administrations are encouraged to adopt actions for energy requalification of public buildings, which are responsible for considerable amounts of energy consumption. Low-cost technology improvements for energy renovation with high return on investment is a good opportunity when resource shortage hampers the adoption of expensive refurbishment. To this purpose, the integration of advanced control policies may optimize energy use of buildings with minimum hardware enhancement.In this contribution, we evaluated the performances of a control system based on fuzzy logic, supervising local Proportional-IntegrativeDerivative (PID) controllers, through numerical simulation. First, the design process will be described, with particular concern to the proper selection of the rules in the knowledge base and the design of the inference engine. Then, its performances will be compared with the ones provided by the use of just ordinary PID control units. The fuzzy based control system was simulated as an addiction to the heating system of an existing small public building, that is the "San Elpidio a Mare" community clinic located in Italy. The performances were assessed by means of simulations of an energy dynamic model developed in the Dymola TM environment, that had been previously validated with real consumption measurements. In this paper we will show not only what energy saving can be obtained by means of the fuzzy supervisor, but also its satisfactory performances in terms of stability of the control outputs.

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“…In particular, complex strategic buildings, such as public buildings owned by public administrations, ask for the development of a detailed consumption breakdown, in order to accurately analyse the actual causes of current consumption and in order to prospect possible improvements [1]. To this aim, their actual operation must be carefully simulated by means of tailored models.…”

Section: Introductionmentioning

confidence: 99%

A Lumped Parameter Model for Dynamic Simulation of Energy Control Policies Applied to Small Public Buildings

Pontoni¹,

Giuliani²,

Carbonari³

et al. 2015

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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As public buildings are responsible for considerable amounts of fuel consumption, public administrations are encouraged to adopt interventions for energy requalification of their real estates. In particular, low-cost energy requalification with high return on investments is a good opportunity when resource shortage hampers the adoption of expensive refurbishment. However, in order to properly plan such a process, a detailed energy audit must be carried out. In addition, a reliable model of the audited building is needed to breakdown the whole energy consumption and to simulate prospective energy savings from candidate requalification strategies. To that purpose, this paper will describe a new-generation Dymola TM based simulation approach, that is reliable enough for assessing the dynamic behaviour of public buildings, even when non-standard systems and heat transfer phenomena are involved.This model provides users with two main advantages: on one hand it facilitates the simulation of interacting physical phenomena (e.g. fluiddynamics, thermal exchange etc…), on the other hand it allows to simulate even advanced control of existing HVAC systems. This last feature is not typical of standard energy simulation software programs. In addition, it is needed when we deal with low-cost energy requalification, because it is usually aimed at the enhancement of existing regulation devices, so that their behaviour must be simulated in order to find out the best customized control policy. Finally, the paper will assess energy savings which can be obtained through the improvement of the HVAC system's control policy for a case study relative to a small public building, that is used as a community clinic.

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Low energy refurbishment strategies for health buildings

Cited by 19 publications

References 7 publications

Integration of Control Policies for Comfort Improvement in a Large Public Building

Integration of Control Policies for Comfort Improvement in a Large Public Building

Design and Simulation of a Fuzzy Supervisory Control System Integrated in a Small Public Building

A Lumped Parameter Model for Dynamic Simulation of Energy Control Policies Applied to Small Public Buildings

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