scholarly journals ANALYSIS OF EFFICIENCY OF SINGLE-FAMILY HOUSE LIFE CYCLE/VIENBUČIŲ GYVENAMŲJŲ NAMŲ GYVAVIMO PROCESO EFEKTYVUMO ANALIZĖ

2000 ◽  
Vol 6 (6) ◽  
pp. 445-450
Author(s):  
Nerija Kvederytė
Keyword(s):  
Life Cycle ◽  
Single Family ◽  
Family House

Norint suprojektuoti ir įgyvendinti efektyvų vienbučio gyvenamojo namo gyvavimo procesą, būtina jo racionalumu rūpintis nuo poreikių ir tikslų nustatytno iki pastato naudojimo pabaigos. Kiekvienu pastato gyvavimo proceso etapu dalyvauja įvairios suinteresuotos grupės: užsakovai, projektuotojai, rangovai, statvbinių medžiagų bei gaminių gamintojai ir tiekėjai, naudotojai, pastatų priežiūros ir remonto organizacijos ir kt. Projektuojant pastato gyvavimo procesą ir priimant sprendimus, reikia atsižvelgti į šių suinteresuotų grupių interesus. Plėtojant kompleksinį požiūrį, vienbučio gyvenamojo namo gyvavimo proceso efektyvumas priklauso nuo kitų sistemos dalių konkrečiu momentu. Todėl vienbučio gyvenamojo namo gyvavimo procesas turi būti projektuojamas ir įgyvendinamas, atsižvelgiant į jo pagrindinius etapus, dalyvaujančių suinteresuotų grupių tikslus ir galimybes, įvertinant išorinę mikro- ir makrolygmens aplinką, t. y. į visus veiksnius, turinčius įtakos vienbučio gyvenamojo namo gyvavimo proceso efektyvumui. Straipsnyje pateikiamas vienbučių gvvenamųjų namų gyvavimo proceso efektyvumo kompleksinei analizei sukurtas teorinis modelis, kuriame įvairūs veiksniai ir aplinkybės aprašomi kriterijų rinkiniu. Remdamosi šiuo modeliu suinteresuotos grupės, rengiančios ir realizuojančios projektą, gali projektuoti alternatyvius vienbučio gyvenamojo namo gyvavimo proceso (įvairių sprendimų) variantus, juos įveitinti ir nustatyti racionaliausią: esamai situacijai rasti efektyvų sprendimą. Sprendimų variantiškumas padeda realiau ir racionaliau įvertinti pastato gyvavimo procesą ekonominiais, kokybiniais (architektūriniais, tūriniais, planiniais, estetiniais), teisiniais, techniniais, technologiniais ir kitais aspektais, suderinti suinteresuotų grupių interesus. Pagal pateiktą modelį sukurta ir sprendimų paramos sistema. Ši sistema pastato gyvavimo proceso dalyviams padeda sėkmingai siekti savo tikslų, didinti pastato gyvavimo proceso efektyvumą. Sprendimų paramos sistemoje taikomi pastato gyvavimo proceso daugiakriterinio alternatyviojo projektavimo ir daugiakriterinio įvertinimo metodai leidžia išspręsti siekiamų tikslų ir šiems tikslams įgvvendinti reikalingų išteklių optimizacijos uždavinį: išanalizavus galimus vienbučio gyvenamojo namo gyvavimo proceso variantus nustatomas racionaliausias šio proceso dalyvių (suinteresuotų grupių) siekiamų tikslų ir turimų galimvbių derinys.

scholarly journals Life Cycle Cost Analysis of a Single-Family House in Sweden

Buildings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 215
Author(s):  
Bojana Petrović ◽  
Xingxing Zhang ◽  
Ola Eriksson ◽  
Marita Wallhagen
Keyword(s):  
Life Cycle ◽  
Life Cycle Cost ◽  
Single Family ◽  
Labor Costs ◽  
Construction Costs ◽  
Economic Parameters ◽  
A Minor ◽  
Family House ◽  
Replacement Operation

The objective of this paper was to explore long-term costs for a single-family house in Sweden during its entire lifetime. In order to estimate the total costs, considering construction, replacement, operation, and end-of-life costs over the long term, the life cycle cost (LCC) method was applied. Different cost solutions were analysed including various economic parameters in a sensitivity analysis. Economic parameters used in the analysis include various nominal discount rates (7%, 5%, and 3%), an inflation rate of 2%, and energy escalation rates (2–6%). The study includes two lifespans (100 and 50 years). The discounting scheme was used in the calculations. Additionally, carbon-dioxide equivalent (CO2e) emissions were considered and systematically analysed with costs. Findings show that when the discount rate is decreased from 7% to 3%, the total costs are increased significantly, by 44% for a 100-year lifespan, while for a 50 years lifespan the total costs show a minor increase by 18%. The construction costs represent a major part of total LCC, with labor costs making up half of them. Considering costs and emissions together, a full correlation was not found, while a partial relationship was investigated. Results can be useful for decision-makers in the building sector.

scholarly journals ANALYSIS OF EFFICIENCY OF SINGLE-FAMILY HOUSE LIFE CYCLE

Statyba ◽  
2000 ◽  
Vol 6 (6) ◽  
pp. 445-450 ◽  
Author(s):  
N. Kvederytė
Keyword(s):  
Life Cycle ◽  
Single Family ◽  
Family House

scholarly journals Optimum Envelope of a Single-Family House Based on Life Cycle Analysis

Buildings ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 95-112 ◽  
Author(s):  
Marie-Claude Hamelin ◽  
Radu Zmeureanu
Keyword(s):  
Life Cycle ◽  
Life Cycle Analysis ◽  
Single Family ◽  
Family House

scholarly journals Life Cycle Assessment of a French Single-Family House Refurbishment: The “Bat-Eco2” Case Study

Procedia CIRP ◽  
2018 ◽  
Vol 69 ◽  
pp. 160-165 ◽  
Author(s):  
Carolina Colli ◽  
Alain Bataille ◽  
Emmanuel Antczak ◽  
François Buyle-Bodin
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Single Family ◽  
Family House

scholarly journals Life Cycle Assessment of Building Materials for a Single-family House in Sweden

2019 ◽  
Vol 158 ◽  
pp. 3547-3552 ◽  
Author(s):  
Bojana Petrovic ◽  
Jonn Are Myhren ◽  
Xingxing Zhang ◽  
Marita Wallhagen ◽  
Ola Eriksson
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Building Materials ◽  
Single Family ◽  
Family House

Comparative life cycle assessment of two different SOFC-based cogeneration systems with thermal energy storage integrated into a single-family house nanogrid

2021 ◽  
Vol 285 ◽  
pp. 116378
Author(s):  
Giuseppe Di Florio ◽  
Edoardo Gino Macchi ◽  
Luigi Mongibello ◽  
Maria Camilla Baratto ◽  
Riccardo Basosi ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Single Family ◽  
Family House ◽  
Comparative Life Cycle Assessment

scholarly journals Life-Cycle Energy, Costs, and Strategies for Improving a Single-Family House

2000 ◽  
Vol 4 (2) ◽  
pp. 135-156 ◽  
Author(s):  
Gregory A. Keoleian ◽  
Steven Blanchard ◽  
Peter Reppe
Keyword(s):  
Life Cycle ◽  
Energy Costs ◽  
Single Family ◽  
Family House

Life cycle assessment of a wooden single-family house in Sweden

2019 ◽  
Vol 251 ◽  
pp. 113253 ◽  
Author(s):  
Bojana Petrovic ◽  
Jonn Are Myhren ◽  
Xingxing Zhang ◽  
Marita Wallhagen ◽  
Ola Eriksson
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Single Family ◽  
Family House

Energy retrofit of a single-family house: Life cycle net energy saving and environmental benefits

2013 ◽  
Vol 27 ◽  
pp. 283-293 ◽  
Author(s):  
Marco Beccali ◽  
Maurizio Cellura ◽  
Mario Fontana ◽  
Sonia Longo ◽  
Marina Mistretta
Keyword(s):  
Life Cycle ◽  
Energy Saving ◽  
Environmental Benefits ◽  
Net Energy ◽  
Single Family ◽  
Energy Retrofit ◽  
Family House

scholarly journals Comparison of Environmental Performance of Single-Family House and Multi-Storey Apartment in Turkey using Life Cycle Assessment

2021 ◽  
Author(s):  
Sedat Gulcimen ◽  
Nigmet Uzal ◽  
Tolgahan Varışlı ◽  
Ghaith Khidrah
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impacts ◽  
Environmental Performance ◽  
Renewable Energy Sources ◽  
Sustainable Construction ◽  
Single Family ◽  
Floor Area ◽  
Operation Phase ◽  
Family House

Abstract In recent years, there has been a significant transition from multi-storey buildings to single-family houses especially due to COVID-19 pandemic. Thus, people prefer to live in single-family houses or detached houses where they have more free space in outside of the house. The aim of this study is to quantify and compare the environmental performance of a single-family house and multi-storey apartment building in Turkey throughout their life cycle with cradle-to-grave approach. Life Cycle Assessment (LCA) based on ISO 14040 and ISO 14044 was used to analyse the environmental impacts of the single-family house and multi-storey apartment buildings. The functional unit was chosen as 1m2 of floor area of a house over their lifespan (50 years). With cradle-to-grave approach of the LCA, the system boundaries for the environmental assessment covers the pre-operation, operation and post-operation stages. The results of this LCA study revealed that majority of the environmental impacts occurs at operation phase for both single-family house and multi-storey apartment. The operation stage has the highest impact with 79% and 78% share of the global warming potential (GWP) for single-family house and the multi-storey apartment, respectively. In comparison of environmental impact results, GWP of the multi-storey apartment per m2 of floor area is 30% lower than single-family house. The environmental impacts of the operation phase have significant importance on the overall environmental performance of both single-family house and multi-storey apartment. The results showed that electricity consumption and steel usage are the main contributors of the environmental impacts coming from the operation and pre-operation phases, respectively. To pave the way to a sustainable future, the building industry must strive to use of renewable energy sources and sustainable construction materials in order to reduce their environmental impacts with a sustainable approach.

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