Green Retrofit Energy Efficiency Potential on Existing Building Envelope for Residential and Non-Residential Building

2021 ◽  
pp. 243-273
Author(s):  
Robert Staiger
Keyword(s):  
Energy Efficiency ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Residential Buildings ◽  
Ecological Impact ◽  
Residential Building ◽  
Building Envelope ◽  
Existing Building ◽  
Primary Energy Demand ◽  
Energy Efficiency Potential

The chapter deals with the green energetic consideration of today's building envelopes for residential and non-residential buildings. It investigates the energetic effects the envelopes have on energy efficiency, energy consumption, material use, sustainable use of resources, lifetime considerations, economic and ecological impact. Today's it is estimated that approximately 30% of the annual primary energy demand for residential and non-residential buildings is needed. Energy resources for heat, electricity, air conditioning and cooling purposes, fossil fuels in form of gas and liquid are predominantly used.

Green Retrofit Energy Efficiency Potential on Existing Building Envelope for Residential and Non-Residential Building

2021 ◽  
pp. 1227-1257
Author(s):  
Robert Staiger
Keyword(s):  
Energy Efficiency ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Residential Buildings ◽  
Ecological Impact ◽  
Residential Building ◽  
Building Envelope ◽  
Existing Building ◽  
Primary Energy Demand ◽  
Energy Efficiency Potential

The chapter deals with the green energetic consideration of today's building envelopes for residential and non-residential buildings. It investigates the energetic effects the envelopes have on energy efficiency, energy consumption, material use, sustainable use of resources, lifetime considerations, economic and ecological impact. Today's it is estimated that approximately 30% of the annual primary energy demand for residential and non-residential buildings is needed. Energy resources for heat, electricity, air conditioning and cooling purposes, fossil fuels in form of gas and liquid are predominantly used.

Green Retrofit Energy Efficiency Potential on Existing Building Envelope for Residential and Non-Residential Building

2019 ◽  
pp. 219-249
Author(s):  
Robert Staiger
Keyword(s):  
Energy Efficiency ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Residential Buildings ◽  
Ecological Impact ◽  
Residential Building ◽  
Building Envelope ◽  
Existing Building ◽  
Primary Energy Demand ◽  
Energy Efficiency Potential

The chapter deals with the green energetic consideration of today's building envelopes for residential and non-residential buildings. It investigates the energetic effects the envelopes have on energy efficiency, energy consumption, material use, sustainable use of resources, lifetime considerations, economic and ecological impact. Today's it is estimated that approximately 30% of the annual primary energy demand for residential and non-residential buildings is needed. Energy resources for heat, electricity, air conditioning and cooling purposes, fossil fuels in form of gas and liquid are predominantly used.

scholarly journals Energy efficiency and economic analysis of retrofit measures for single-family residential buildings

2019 ◽  
Vol 23 (3 Part B) ◽  
pp. 2071-2084 ◽  
Author(s):  
Norbert Harmathy ◽  
Danijela Urbancl ◽  
Darko Goricanec ◽  
Zoltán Magyar
Keyword(s):  
Energy Efficiency ◽  
Economic Evaluation ◽  
Low Temperature ◽  
Economic Analysis ◽  
Energy Demand ◽  
Residential Buildings ◽  
Residential Building ◽  
Expanded Polystyrene ◽  
Temperate Climate ◽  
Single Family

The research elaborates various solutions using detailed economic evaluation and energy efficiency calculation and simulation technology for formulating applicable, energy and cost-efficient retrofit solutions of single-family residential buildings located in temperate climate areas. Primarily the annual energy demand for a reference existing single-family residential building was determined. The economic analysis was performed for six formulated refurbishment scenarios in order to determine which of the scenarios will demonstrate optimal performance both in energy and cost efficiency. A feasibility study was performed for the most efficient scenario, which included an economic evaluation of low temperature radiant heating systems were three energy suppliers (oil, natural gas and electricity for air to water heat pump) were compared. According to financial analyses the optimal scenario includes the replacement of windows, installation of 15 cm expanded polystyrene thermal insulation, low temperature radiant floor heating, with a payback period of ten years.

scholarly journals PREFABRICATED TIMBER PANELS APPLICATION POSSIBILITIES FOR THE ENERGY REFURBISHMENT OF RESIDENTIAL BUILDINGS ENVELOPE IN BOSNIA-HERZEGOVINA AND SLOVENIA

2020 ◽  
Vol 14 (1) ◽  
Author(s):  
Darija Gajić ◽  
Anna Sandak ◽  
Slobodan Peulić ◽  
Črtomir Tavzes ◽  
Tim Mavrič
Keyword(s):  
European Union ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Hvac System ◽  
The European Union ◽  
Renewable Materials ◽  
Building Stock ◽  
Existing Building ◽  
Residential Building Stock

System of prefabricated modules installed on the existing building envelope is one alternativesolution for deep energy refurbishment of buildings in the European Union. It allows thermalupgrade installation of new parts in the HVAC system. Moreover, some elements of the envelopecan be made of renewable materials. This research compares the residential building stock andidentifies potential types of buildings for energy refurbishment in Bosnia and Herzegovina andSlovenia. It presents refurbishment possibilities of existing residential building stock in bothcountries with prefabricated timber panels. It also presents potential obstacles to the widerapplication of this refurbishment solution.

Study on Energy-Saving Renovation of Existing Heating Masonry-Concrete Residential Buildings

2011 ◽  
Vol 280 ◽  
pp. 147-151 ◽  
Author(s):  
Hong Guo ◽  
Min Fang Su ◽  
Xiao Jun Jin
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Saving ◽  
Thermal Environment ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Envelope ◽  
Indoor Thermal Environment ◽  
Consumption Situation ◽  
Current Energy

Based on the current energy consumption situation of existing masonry-concrete residential buildings in China, it discussed the main energy-saving renovation policies and technologies. Taking existing masonry-concrete residential building of Taiyuan city as a case, it analyzed its heat loss situations, energy-saving renovation design and reconstruction technologies of building envelope. It discussed energy-saving renovation effects. Energy efficiency and indoor thermal environment improved significantly after energy-saving renovation. The building life is extended.

scholarly journals Analysis of the scope of thermo-modernization for a residential building in order to transform it into a low-energy building

2018 ◽  
Vol 44 ◽  
pp. 00069 ◽  
Author(s):  
Maciej Knapik
Keyword(s):  
Energy Demand ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Design ◽  
Primary Energy ◽  
Hot Water ◽  
Low Energy ◽  
Existing Building ◽  
Domestic Hot Water ◽  
Modernization Process

The article presents the problem of thermo-modernization and the reduction of energy demand for heating purposes in existing residential buildings. The thermo-modernization process has to adapt the existing building to the standard of a building with low energy demand and applicable regulations. Low-energy constructions are a result of introduction of new solutions in building design process. Their main objective is to achieve a significant reduction in demand for renewable primary energy, necessary to cover the needs of these buildings, mostly related to their heating, ventilation and domestic hot water. The article presents the results of the analysis and calculation of selected thermo-modernization variants. The results showed that thermo-modernization process of existing residential buildings is justified both energetically and economically.

scholarly journals A Life Cycle Cost Analysis of Structural Insulated Panels for Residential Buildings in a Hot and Arid Climate

Buildings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 255
Author(s):  
Muataz Dhaif ◽  
André Stephan
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Life Cycle Cost ◽  
Energy Demand ◽  
Energy Use ◽  
Residential Buildings ◽  
Climatic Conditions ◽  
Building Envelope ◽  
Structural Insulated Panels ◽  
Operational Energy

In hot and humid climatic conditions, cooling tends to dominate building thermal energy use. Cooling loads can be reduced through the adoption of efficient building envelope materials, such as Structural Insulated Panels (SIPs). This study quantifies the life cycle cost and operational energy of a representative case-study house in Bahrain using SIPs and hollow concrete blocks (HCBs) for the envelope over a period of 50 years. Operational energy is calculated using a dynamic energy simulation tool, operational costs are calculated based on the energy demand and local tariff rates, and construction costs are estimated using market prices and quotations. The life cycle cost is quantified using the Net Present Cost technique. Results show that SIPs yield a 20.6% reduction in cooling energy use compared to HCBs. For SIP costs of 12 and 17 USD/m², the SIP house was cheaper throughout, or had a higher capital cost than the HCB house (breaking even in year 33), respectively. We propose policy recommendations with respect to material pricing, electricity tariffs, and energy efficiency, to improve the operational energy efficiency of houses in Bahrain and similar countries along the Arabian Peninsula.

scholarly journals Investigation of the envelope’s thermal transmittance influence on the energy efficiency of residential buildings under various Mediterranean region climates

2021 ◽  
Vol 899 (1) ◽  
pp. 012009
Author(s):  
A C Karanafti ◽  
T G Theodosiou
Keyword(s):  
Energy Efficiency ◽  
Residential Buildings ◽  
Residential Building ◽  
Energy Performance ◽  
Building Envelope ◽  
Ambient Conditions ◽  
Cooling Period ◽  
Thermal Transmittance ◽  
System A ◽  
Mediterranean Regions

Abstract Improving the energy efficiency of residential buildings is of outmost importance for reducing their environmental footprint. Recent studies demonstrate that a highly insulated building envelope may burden the building’s performance during the cooling period, especially in regions with hot summers. In this study, the energy performance of a residential building in different Mediterranean regions (Jordan, Greece, Iraq, Egypt, Syria, Morocco, Cyprus, Saudi Arabia, Libya, and Spain) is investigated. Two thermal transmittance values are applied to the building shell, a scenario with a very low one and a scenario with a higher one, to examine under which conditions the cooling performance is improved. A dynamic insulation configuration is also implemented, and its operation is studied for the cooling period of each city. It is concluded that in Southern European and Northern African regions building envelopes with lower thermal resistances perform better, while in even Southern regions an increased thermal resistance may prevent the heat from entering the building more effectively. With the switching insulation system, a great reduction in the cooling demands was reported, which reached up to 50% in Spain, and it was shown that in the southern regions the configuration’s operation should be customized to the ambient conditions to optimize its performance.

scholarly journals Analysis and Comparison of Energy Efficiency Code Requirements for Buildings: A Morocco–Spain Case Study

Energies ◽  
2020 ◽  
Vol 13 (22) ◽  
pp. 5979
Author(s):  
Ikram Merini ◽  
Angel Molina-García ◽  
M. Socorro García-Cascales ◽  
Mustapha Mahdaoui ◽  
Mohamed Ahachad
Keyword(s):  
Energy Efficiency ◽  
Energy Demand ◽  
Residential Buildings ◽  
Residential Building ◽  
Transport Sector ◽  
Tertiary Sector ◽  
Improve Energy Efficiency ◽  
Heating And Cooling ◽  
New Energy ◽  
Cooling Energy Demand

The trend in energy consumption, with a particular focus on heating and cooling demand, is an issue that is relevant to the promotion of new energy policies and more efficient energy systems. Moreover, heating and cooling energy demand is expected to rise in the next several decades, mainly due to climate change as well as increasing incomes in developing countries. In this context, the building sector is currently a relevant energy-intensive economic sector in Morocco; it accounts for 33% of the country’s total energy demand (as the sector with the second highest energy demand, after the transport sector), with the residential sector accounting for 25% and the tertiary sector accounting for 8%. Aiming to reduce energy dependence and promote sustainable development, the Moroccan government recently issued a comprehensive plan to increase the share of renewables and improve energy efficiency. This strategy includes novel thermal building regulations promoted by the Moroccan Agency for Energy Efficiency. This paper analyzes the thermal behavior and heating-cooling energy demand of a residential building located in Tangier (Morocco) as a case example, based on the country’s new thermal regulations and considering specific climatological conditions. A comparison with common Moroccan residential buildings as well as with those in nearby countries with similar meteorological conditions but significant differences in terms of energy demand regulation and requirements, such as Spain, is also included. Simulations were carried out using the DesingBuilder and EnergyPlus Software packages. According to the results, the last building thermal regulation requirements in Morocco need to be revised and extended in order to achieve the energy efficiency objectives established by the Moroccan government for 2030.

scholarly journals Passive Design Strategies for Residential Buildings in Different Spanish Climate Zones

2019 ◽  
Vol 11 (18) ◽  
pp. 4816 ◽  
Author(s):  
Maria-Mar Fernandez-Antolin ◽  
José del Río ◽  
Vincenzo Costanzo ◽  
Francesco Nocera ◽  
Roberto-Alonso Gonzalez-Lezcano
Keyword(s):  
Energy Efficiency ◽  
Energy Demand ◽  
Architectural Design ◽  
Residential Buildings ◽  
Research Work ◽  
Residential Building ◽  
Design Strategies ◽  
Climate Zones ◽  
Building Performance Simulation ◽  
Passive Design

The Passive House (PH) concept is considered an efficient strategy to reduce energy consumption in the building sector, where most of the energy is used for heating and cooling applications. For this reason, energy efficiency measures are increasingly implemented in the residential sector, which is the main responsible for such a consumption. The need for professionals dealing with energy issues, and particularly for architects during the early stages of their architectural design, is crucial when considering energy efficient buildings. Therefore, architects involved in the design and construction stages have key roles in the process of enhancing energy efficiency in buildings. This research work explores the energy efficiency and optimized architectural design for residential buildings located in different climate zones in Spain, with an emphasis on Building Performance Simulation (BPS) as the key tool for architects and other professionals. According to a parametric analysis performed using Design Builder, the following optimal configurations are found for typical residential building projects: North-to-South orientation in all the five climate zones, a maximum shape factor of 0.48, external walls complying with the maximum U-value prescribed by Spanish Building Technical Code (0.35 Wm−2K−1) and a Window-to-Wall Ratio of no more than 20%. In terms of solar reflectance, it is found that the use of light colors is better in hotter climate zones A4, B4, and C4, whereas the best option is using darker colors in the colder climate zones D3 and E1. These measures help reaching the energy demand thresholds set by the Passivhaus Standard in all climate zones except for those located in climates C4, D3 and E1, for which further passive design measures are needed.

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