Environmental and economic performance of heating systems for energy-efficient dwellings: Case of passive and low-energy single-family houses

Georges, Laurent; Massart, Catherine; Moeseke, Geoffrey Van; Herde, André De

doi:10.1016/j.enpol.2011.10.037

Cited by 50 publications

(28 citation statements)

References 5 publications

(8 reference statements)

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“…In terms of payback time, savings on these energy costs counterbalance more slowly the extra-investment that must often be accepted to afford a more energy-efficient heating system. Particularly for a passive house, it can be shown that selecting a heating system with a low investment cost is a necessary condition to reach cost effectiveness [1]. This low investment is possible using a wood stove.…”

Section: Introductionmentioning

confidence: 99%

On the proper integration of wood stoves in passive houses: Investigation using detailed dynamic simulations

Georges

Skreiberg

Novaković

2013

Energy and Buildings

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Wood stoves are attractive for the space-heating (SH) of passive houses. Nevertheless, there are still questions about their integration. Firstly, the power oversizing of the current stoves and their long operating time may lead to unacceptable overheating. Secondly, it is also unclear how one stove can ensure the thermal comfort in the entire building. The paper investigates these aspects using detailed dynamic simulations (TRNSYS) applied to a detached house in Belgium. An 8 kW stove is assumed to be representative of the lowest available powers in the market. Results confirm that a large power modulation is important to prevent overheating. Opening the internal doors, a high building thermal mass and a heat emission dominated by radiation also reduce the overheating risk, but to a smaller extent. Besides, a single stove cannot enforce the thermal comfort during design weather conditions: * Corresponding author

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Section: Introductionmentioning

confidence: 99%

On the proper integration of wood stoves in passive houses: Investigation using detailed dynamic simulations

Georges

Skreiberg

Novaković

2013

Energy and Buildings

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“…The global costs method is used in Poland and in many European countries to establish the requirements of thermal protection of the buildings [21,[23][24][25][26][27][28][29][30][31][32][33]. The For the analysed buildings only in case of bio-mass boiler application the energetic optimum, assumed by global cost method, lies in the area of the used energy at the level of EU 15 .…”

Section: Cost's Optimal Resultsmentioning

confidence: 99%

The use of multi-criteria optimization to choose solutions for energy-efficient buildings

Basińska

2017

Bulletin of the Polish Academy of Sciences Technical Sciences

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Abstract. The goal of this paper was to optimize the building envelope and technical equipment in the building through the mitigation of the global cost value, and then to evaluate the influence of the chosen assumptions on the primary energy index. The analyses carried out using global cost method allow for finding the cost optimal solution but only for the some range of primary energy index variability. In order to find the optimal solutions it was proposed to use the multi-criteria optimisation, assuming the following as basic criteria: a global cost value and investment prices increase (economic criteria), a primary energy index (energy-related criterion), an emission of carbon dioxide (environmental criterion). The analysed case study refers to the technical solutions for the residential buildings with the usable energy demand at the level of 40 and 15 kWh/m 2 /a. The presented method might be applied to different types of buildings: those being designed and those being the subject of the thermo-modernisation. The results demonstrate that the proposed model allows for classification of the alternative technical solutions regarding the designing process and the building's technical equipment. The carried out analyses indicate the economic possibility to achieve the low energy building standard and show the need to concentrate the activities related to the installation technology and used energy source.Key words: global cost methodology, low energy buildings, European Union Directive, multi-criteria optimization. focused on the applied mechanical systems in the scope of heating, ventilation, air conditioning (HVAC) and the sources of the energy supplying the building. The goal of these activities is to re-shape the building and its technical equipment in such a way to limit the energy usage. As a result it should lead to the limitation of CO 2 emission. The basic aim of this paper is to present the method of the economic, energy-related and ecological evaluation of the building and its mechanical equipment. The main goal of this paper was to optimize the building's envelope and its technical equipment. The problem of the multi-criteria optimization was solved, including the minimalisation of the global cost, primary energy index, emission of carbon dioxide and the increase of the investment costs in relation to the basic scenario. The options of the possible technological activities aiming for achieving the standards of the low-energy building were compared and then the best solution for the Polish economic conditions was indicated. The analyses referred to the building components, creating the building's envelope as well as to the components of the mechanical systems (HVAC) and the energy sources supplying the building's technical systems. The primary aim was to provide a comparison of the proposed solutions with the basic scenario (BASE).The proposed method was used to indicate the integrated activities (construction technology, mechanical system, energy sources) aiming for the improvement of the technology...

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“…The economic and environmental feasibility of the EPBD-recast comparative framework methodology has been validated, before [15][16][17][18][19] and after [1,[20][21][22][23] stipulating the directive.…”

Section: The Economic and Environmental Feasibility Of The Epbd-recasmentioning

confidence: 99%

“…According to a previous literature review conducted by the authors [1], it is concluded that few economic scenarios or design options are addressed in nZEB related studies. None of the studies of Kumbaroglua and Madlener [2], Hasan et al [3], Papadopoulos et al [4], Georges et al [5], Kurnitskia et al, [6], Marszal et al [7], Munjur et al [8]. and Attia [9] investigated comprehensively the impact of the economic assumptions on the cost-optimal energy performance level (CO-EPL) towards nZEBs, in line with the EBPD-recast 2010 [10].…”

Section: Introductionmentioning

confidence: 99%

Impact of financial assumptions on the cost optimality towards nearly zero energy buildings – A case study

Hamdy

Sirén

Attia

2017

Energy and Buildings

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a b s t r a c tThe energy efficiency challenge in Europe is mainly concerned with existing buildings and the investment scenarios to implement deep renovations. The cost-optimal approach imposed on EU-Member states by the European Energy Performance of Buildings Directive aims to identify the investment gap and challenges to transform existing buildings into nearly Zero Energy Buildings (nZEBs). The investment gap is function of several volatile financial parameters including discount rate (r), developing of energy price (e), decline rate of technology price (d), as well as nZEB's incentives like feed-in-tariff (FiT) and investment grant (iG). In this context, the decision making process of individuals or investment institutions is hindered by complexity and uncertainty.In order to assist the decision making process and improve the visibility of financial energy benefits, a novel optimization-based parametric analysis scheme (OptnZEB-I) is developed. The scheme is designed to investigate a large number of economic scenarios (i.e., combinations of financial assumptions) in a short computational time while a holistic optimization approach is adopting for exploring all possible design options including energy conservation measures (ESMs); renewable energy sources (RETs) and mechanical systems (Sys).For demonstration, the scheme is applied to analyse the impact of several financial parameters on the cost-optimal energy performance level (CO-EPL) of a single family house in Finland. In line with the EU-directive, a large number of possible design options (∼3 × 10 9 million) are optimized for 4608 cases of economic scenarios. The results of the address case study show that, in average, the CO-EPL ranges from 90 to 160 [kWh/m 2 ]. The range has most frequent value of 145 kWh/m 2 . The CO-EPL is significantly sensitive to the e, f, then i, respectively. Less sensitivity is found to the other financial parameters.The robustness of the optimization results are verified by solving the addressed design problem by using four different optimization algorithms (i.e., pattern search, interior-point, simulated annealing and genetic algorithms).© 2017 Elsevier B.V. All rights reserved.Abbreviations: ASHP, air source heat pump; c, calculatioin period; CO-EPL, cost-optimal energy performance level; CO-IC, cost-optimal investment cost; CO-TM, costoptimal technology mix; d, decline rate of technology price; dIC, additional investment cost (initial costs higher than 21kD ); e, escalation rate of energy price; ESMs, energy saving measures; EPBD, European Energy Performance of Buildings Directive; f, inflation rate; FiT, feed-in-tariff; GA, genetic algorithm; GSHP, ground source heat pump; HVAC, heating ventilation and air conditioning system; i, nominal interest rate; iG, investment grants (25% discount of additional investment); LCC, life cycle cost; MG, money gain from exporting the surplus electricity to the grid; CHP, micro-heating and power plants; nZEB, nearly zero energy buildings; NZEB, Nearly zero energy buildings; PHU, primar...

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Environmental and economic performance of heating systems for energy-efficient dwellings: Case of passive and low-energy single-family houses

Cited by 50 publications

References 5 publications

On the proper integration of wood stoves in passive houses: Investigation using detailed dynamic simulations

On the proper integration of wood stoves in passive houses: Investigation using detailed dynamic simulations

The use of multi-criteria optimization to choose solutions for energy-efficient buildings

Impact of financial assumptions on the cost optimality towards nearly zero energy buildings – A case study

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