Heating and cooling building energy demand evaluation; a simplified model and a modified degree days approach

Роса, Маттиа Де; Bianco, Vincenzo; Scarpa, Federico; Tagliafico, Luca A.

doi:10.1016/j.apenergy.2014.04.067

Cited by 193 publications

(87 citation statements)

References 23 publications

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“…A simple dynamic model to simulate heating and cooling energy consumption in buildings is presented in (Rosa et al, 2014). A lumped capacitance approach combined with the electrical analogy has been used in the model development and is implemented in Matlab/SIMULINK platform.…”

Section: Previous Workmentioning

confidence: 99%

Modeling and Simulation of Multi-Room Buildings

Perera¹,

Skeie²

2016

MIC

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Buildings are one of the largest energy consumers in the world which accounts for nearly 40% of the total global energy consumption. In the countries where cold climate conditions predominate, space heating is the key contributor to the increased energy consumption. Today there is a growing trend to use Building Energy Management Systems (BEMS) to control the energy consumption of buildings in an efficient manner. BEMS require a good heating model of the building to be integrated for better control purposes. This article refers to the development of different types of physics based buillding heating models, regarding single-zone, multi-floor and multi-room buildings. They address the propriety of each model in building heating control concerning the prediction accuracy and the prediction time. These models are verified for a residential building having three floors. According to the results, the multi-floor model is recognized to have the best qualifications obliged as a model for control.

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Section: Previous Workmentioning

confidence: 99%

Modeling and Simulation of Multi-Room Buildings

Perera¹,

Skeie²

2016

MIC

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“…Degree-day is an important climatic design indicator that captures the extremity and duration of ambient temperature and is essentially the temperature difference between a single day's mean temperature and a reference temperature [26,27]. The NMX-C-460-ONNCCE-2009 (NMX-C-460) uses a reference temperature of 10˝C for cooling degree-days (CDD10) and a reference temperature of 18˝C for heating degree-days (HDD18).…”

Section: The State Of Building Insulation and Previous Studies In Mexicomentioning

confidence: 99%

The Effects of Roof and Wall Insulation on the Energy Costs of Low Income Housing in Mexico

2016

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Abstract:Environmental conditions, such as air temperature and solar radiation, have a complex relationship with the energy requirements for heating and cooling of residential buildings. In this work, a comparative analysis of the insulation methods most commonly applied to low income single-family houses in Mexico is presented, in order to find the most energy-efficient combinations of methods for the various climates in this country. A common kind of building, small houses built with hollow cinder block walls and concrete slab roofs, was analyzed considering three insulation scenarios: walls only, roof only and both. We used dynamic simulation to evaluate energy consumption under the climate conditions found in several Mexican cities. From the energy consumption data and the cost of electricity in Mexico, we calculated net annual energy costs, including both annual energy savings and the annualized cost of the initial investment in better insulation. Results of this analysis show that insulating both roof and walls is most effective in cities with cold winters; insulating just the roof is best for temperate climates; and insulating walls (combined with high-albedo roofs) is most effective for cities with year-long warm weather.

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“…In the European Union (EU), the building sector covers 40% of the total energy consumption, resulting in 36% of CO 2 gas emissions [3]. In future projection, it is expected that residential buildings account for 25% of the final energy consumption in the EU [3]. Consequently, an urgent require to apply sustainability concepts to the design and construction of buildings has emerged.…”

Section: Introductionmentioning

confidence: 99%

“…A series of accompanying initiatives on energy efficiency will ensure that the target can be delivered cost-efficiently, by adapting the relevant legislation to a 2030 context and tackling the multiple barriers holding back investments in energy efficiency and, in particular, in the renovation of buildings [2]. In the European Union (EU), the building sector covers 40% of the total energy consumption, resulting in 36% of CO 2 gas emissions [3]. In future projection, it is expected that residential buildings account for 25% of the final energy consumption in the EU [3].…”

Section: Introductionmentioning

confidence: 99%

Energy Retrofitting Strategies and Economic Assessments: The Case Study of a Residential Complex Using Utility Bills

et al. 2018

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Promotion of retrofit actions on existing buildings is a goal in Italy, since most of them were built before the 80 s when little attention was paid to energy saving. This paper presents an integrated passive design approach to reduce the heating demand and limit the costs of a representative existing residential complex located in Bologna, in the northern part of Italy. To this purpose, we explored different scenarios upon actions taken on the building structure: (1) High efficiency windows; (2) additional insulation on the external walls; or (3) the simultaneous application of high efficiency windows and improved thermal envelope, on both external walls and roofing. The numerical optimization has been performed dynamically using TRNSYS simulation tool, to evaluate energy consumptions in different structural conditions. Then, the developed model has been calibrated by the real consumption data deduced from energy bills (years 2009-2015). Finally, the energy results obtained in the above mentioned different scenarios have been evaluated under an economic assessment of cost investment: It has been highlighted that the payback time (PBT) results to be strongly influenced by the national policies of fiscal incentives. According to the present model, the most profitable condition is obtained when additional insulation on the external walls is applied: The total amount of energy saving resulted to be equal to 930.4 MWh, with an optimal PBT of roughly six years, when tax refund was contemplated.

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Heating and cooling building energy demand evaluation; a simplified model and a modified degree days approach

Cited by 193 publications

References 23 publications

Modeling and Simulation of Multi-Room Buildings

Modeling and Simulation of Multi-Room Buildings

The Effects of Roof and Wall Insulation on the Energy Costs of Low Income Housing in Mexico

Energy Retrofitting Strategies and Economic Assessments: The Case Study of a Residential Complex Using Utility Bills

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