Renovation Plan Research Articles

Strategically Measuring Quality of Existing Building Stock

Dutch housing corporations generally have two methods of assessing the strategic value of existing housing stock. The first is by calculating the financial return on investments with a life expectancy of fifty to sixty years. The second method is to balance the technical quality against maintenance and renovation planning. A Dutch housing corporation needed a integrated method, so in a single case study, a new method was developed based on research on how to monitor the technical and financial assets better.
 
 Four problems were detected: (1) the existing strategy did not seem to be resilient to future changes, (2) there was no instrument for measuring progress, (3) there was no way to translate strategic data to individual estates and (4) there was no instrument for monitoring the results of improvements set off against the strategic goals. 
 
 With one integrated tool to fix these four problems, an integrated approach to a closed asset management strategy and policy would be available. Such a tool would make it possible to make adjustments to the strategy based on facts gained by measuring the results of former adjustments to the strategy. The goal of this paper is to present the research supporting the design of a new model. 
 
 The result, the so called Return Matrix, is a fully elaborated model. It supports the management team in decision making about strategy (five years) and vision (twenty years) development. It creates insight into and support for the outcome of the strategy among policy professionals, staff and colleagues. And finally, it creates understanding among the tenants, it s understood and supported by the civil servants and gets approval and agreement of cooperation from the municipal executives. 
 
 With the knowledge gained by this study, it will not be difficult to compose the instrument for other cases too.

Restored and Regretted: A History of Staging Authenticity at the Dutch Palace Het Loo

With the coronation of King-Stadtholder William of Orange III and Mary II of England in 1689, palace Het Loo became the seat of the first kingly ruler the Dutch had seen in a century. Its physical biography demonstrates this symbolic weight and the dialogue between its presentation and reception since. In the early nineteenth century, its resident king Louis Bonaparte greatly altered both the house and the garden of Het Loo. In the 1970s, it was decided to recreate the seventeenth-century palace, despite fierce debates, which even reached the Dutch Parliament. Both supporters and opponents of the far-reaching renovation plans argued that the authenticity of the site was at stake. Since then, several other restoration programs have been carried out, a very extensive one is currently underway. This article takes the restorations of Het Loo in the twentieth and twenty-first centuries in light of its presentation history as its subject and case, discussing how authenticity at palace museum Het Loo is defined, contested, neglected, and defended.

디자인 초기 현장 시각화를 위한 증강현실기반 접근방법 - 대학교 학술정보관 공간개선 디자인 안 예시를 중심으로 -

디자인 초기 현장 시각화를 위한 증강현실기반 접근방법 - 대학교 학술정보관 공간개선 디자인 안 예시를 중심으로 -

Model for predicting price change patterns in multi-family houses post renovation work in South Korea

ABSTRACTRenovation work on deteriorated multi-family houses (MFHs) is often undertaken to improve their physical performance. However, due to uncertainties in economic benefits from renovation, many MFHs frequently withdraw their renovation plans in South Korea. Despite this problem, there has been very little research on countering this issue. With this background, this study aims to develop a model for predicting the price change patterns (MPPCP) of deteriorated MFHs upon renovation in South Korea. An artificial neural network (ANN)-based MPPCP was developed to detect the relationship between project attributes and price change patterns due to renovations. By combining the parameters of the ANN method, 108 candidate models were identified and a final MPPCP was proposed after conducting simulation tests to verify the level of correct for the candidate`s models. The results of model application to actual MFH renovation cases show that the developed model can facilitate a project owner’s decision-making by estimating price change patterns for the deteriorated MFH in the project planning stage itself.

Energy-Efficient Office Renovation

Energy-Efficient Office Renovation

Building characteristics and energy use of energy-efficient renovated offices

Chapter 2 presented the physical and psychological satisfaction parameters for user-focused evaluation. In most renovation projects, the facade is a major consideration next to the HVAC system to optimise the performance of the building. Many studies reveal that facade renovation has a large impact on the energy efficiency. The aim of this chapter is to identify the characteristics of renovated offices, such as facade types, HVAC system, and sun shading, and compare the energy performance based on user typologies in renovated and non-renovated office buildings. Section 3.2 describes an overview of facade renovation strategies based on literature. The renovation strategies are classified into four strategies: passive add-in, replacement, climate skin, and active add-in. Section 3.3 presents the criteria to select case studies. Section 3.4 describes the characteristics of four renovated case studies and one non-renovated case located in the Netherlands. The building information was collected through interviews with architects, a review of project documents, and a field survey. Cross-analysis was used to compare the renovation plan, physical conditions. Energy consumption of each office building was compared by different energy metrics in section 3.5. Section 3.6 discusses the limitation of the renovation projects and suggestions for the future study. The finding from cross-evaluation of case studies are described in section 3.7.

Cost-Optimal Maintenance and Renovation Planning in Multifamily Buildings with Annual Budget Constraints

AbstractIn strategic planning, maintenance and renovation plans serve as an instrument for multiple objectives (e.g., to control degradation, sustain optimal building performance, reduce the costs ...

Monitoring and continuous Commissioning of new and existing Buildings

In the building industry, the quality control practices during the design stage, implementation, introduction and use varies. Also, the owner´s project requirements may vary. The instrumentation, measurements and the control options are different. The final product of the building process is the indoor environment. When evaluating the need of renovation of existing buildings and to control the performance of a new building, certain procedures are needed. Building automation system collects information for control of the building systems and for the users and stakeholders. The validity of the system depends on the level of instrumentation, data processing and reporting. The level of measurements can`t be equal in all buildings. Apartment houses does not need such installations than e.g. hospitals. It is obvious, anyhow, that the data collection, processing and reporting need to be improved. The new sensors and data transfer technologies give a better opportunity to do so. In new buildings it is possible to measure the performance of certain structural details and compare the results with the models. The actual performance does not necessarily fit the planned because there can be always some differences and deficiencies after construction phase. The planning of renovations must be based on condition assessment, and normally there are various measurements carried out and also documents are checked, if there are measurement records available Because the performance and indoor conditions are the sum is the integration and function of all the systems together, measurements can reveal deficiency and inefficiency of building systems.. In this presentation some examples and measures are introduced, based on the city of Oulu, Finland. The advantages of commissioning-type monitoring are discussed. The key point is to have proper measurements and especially proper reporting.

Building characteristics and energy use of energy-efficient renovated offices

Chapter 2 presented the physical and psychological satisfaction parameters for user-focused evaluation. In most renovation projects, the façade is a major consideration next to the HVAC system to optimise the performance of the building. Many studies reveal that façade renovation has a large impact on the energy efficiency. The aim of this chapter is to identify the characteristics of renovated offices, such as façade types, HVAC system, and sun shading, and compare the energy performance based on user typologies in renovated and non-renovated office buildings. Section 3.2 describes an overview of façade renovation strategies based on literature. The renovation strategies are classified into four strategies: passive add-in, replacement, climate skin, and active add-in. Section 3.3 presents the criteria to select case studies. Section 3.4 describes the characteristics of four renovated case studies and one non-renovated case located in the Netherlands. The building information was collected through interviews with architects, a review of project documents, and a field survey. Cross-analysis was used to compare the renovation plan, physical conditions. Energy consumption of each office building was compared by different energy metrics in section 3.5. Section 3.6 discusses the limitation of the renovation projects and suggestions for the future study. The finding from cross-evaluation of case studies are described in section 3.7.

ПЕТРОГРАФИЧЕСКАЯ ХАРАКТЕРИСТИКА МАТЕРИАЛОВ ОТДЕЛКИ ЗДАНИЙ КУЛЬТУРНОГО НАСЛЕДИЯ Г. СЕВАСТОПОЛЯ ПОСЛЕВОЕННОЙ ПОСТРОЙКИ 40 – 50-Х ГОДОВ ХХ ВЕКА

This article is devoted to the identification of materials and the study of the composition of mortars used in the decoration of the facades of residential buildings that are cultural heritage objects and identified cultural heritage objects to be restored according to a major renovation plan, st. Bolshaya Morskaya and pl. Lazarev in the city of Sevastopol.

Methodology for Praxis-Oriented Development of a Building Refurbishment Concept Including Consideration of Potentially Existing Moisture Related Problems and Facade Restoration Measures

When renovating historic buildings with facades worth preserving, the use of internal insulation is often the only way of thermal renovation of existing exterior walls. On the basis of the analysis of the building stock, suitable insulation concepts have to be developed. Demanding renovation planning, taking into account the requirements of the preservation of historical monuments, includes the determination of potential moisture-related causes of damage and the elaboration of measures for elimination and future damage prevention. In this paper, a renovation guide is presented that translates the scientific results of building physics research into renovation practice. As part of the knowledge transfer, the authors have been involved in renovation projects for years, using the methods and software tools they developed themselves. The individual steps of the refurbishment guide are explained using examples from refurbishment practice, starting with an on-site inspection, carrying out in-situ tests and measurements and determining the material properties in the laboratory. On this basis, necessary immediate measures for building protection can be formulated, and together with the owner / architect, various options regarding the intended use of the building and the actual condition determined in the investigation phase are developed. The development of the planning guide also allows conclusions to be drawn about the applicability of the simulation tools developed in the scientific environment and promotes their further development towards fully-fledged, economically usable planning tools.

Energy-Efficient Office Renovation

Energy-Efficient Office Renovation

Hardware Commissioning of the Renovated PIAVE Injector at INFN-LNL

During 2018, the PIAVE superconducting linac injector at INFN-LNL, based on superconducting RFQs and two cryomodules with quarter wave resonators, underwent a renovation plan. This operation was strictly related to the one carried out on ALPI [1], which will become a post-accelerator for both stable and exotic beams in a near future. PIAVE Quarter Wave Resonator (QWR) cryomodules, in operation since 2006, were moved to ALPI to be used for the acceleration of both stable beams and future exotic beams delivered from the cyclotron target-ion-source station, after appropriate purification, charge breeding and pre-acceleration stages. In order to cope with the removal of the two QWR cryomodules in PIAVE, a newly designed 80 MHz room temperature buncher was designed, built and tested: the buncher is required so as to match the longitudinal phase space between PIAVE superconducting RFQs (SRFQ1 and SRFQ2) and ALPI. In the same period, substantial refurbishments on the ECR ion source platform were carried out, in particular on its infrastructure and safety equipment. A problem on an electronic component on SRFQ2, though quickly fixed, delayed beam commissioning of the PIAVE injector, which will start at the end of May 2019.

A Study on Parametric Design Application to Hospital Retrofitting for Improving Energy Savings and Comfort Conditions

The scientific literature offers a wide range of studies evidencing the progress done in the retrofit actions dealing with the current building stock; however, renovations of hospitals are still an open field of research due to their typical complexity that is usually associated with a very challenging updating processes to maintain or increase operational level. The paper provides a synthesis of a study developed by a team of the Department of Architecture for Saint Orsola Hospital in Bologna with the scope to explore innovative retrofitting strategies. The brief provided by the management unit of the hospital was connected to the general renovation plan involving the entire site and particularly some existing buildings taking into account some limitations concerning budget availabilities and everyday activities needed to ensure acceptable service level for the end users. The design approach starts from defining a basic unit (a typical hospital room) that is deeply analyzed to report the starting conditions (indoor environmental parameters) and then used to simulate the potential impacts of retrofitting actions on its performances. The results allowed to parametrically develop a step by step strategy scaled on each building sector and on the building as a whole to evaluate the global impact on energy performances while considering time and costs of each retrofitting options.

Research on Renovation Planning of Traditional Hutong—Take Beijing Juer Hutong Renovation Project as Axample

The architectural language of traditional hutong plays a carrier role in local history and culture. The traditional hutong architectural language is refined as a prototype, and some essence is extracted from the architectural ontology and transmitted to the new hutong design, so that the new hutong architecture has certain social and humanistic thoughts. It also has contemporary characteristics, which is the current direction of hutong renovation. This paper conducts pre-design planning research on the renovation project of contemporary juer hutong in Beijing, and explores various techniques in the renovation and reconstruction design of contemporary traditional hutong.

Roadmap towards clean heating in 2035: Case study of inner Mongolia, China

District heating (DH) is rapidly expanding in China, which consumes a significant share of the national energy and aggravates pollution problems. Among the Northern provinces, Inner Mongolia Autonomous Region (IMAR) has a large area of district heating which relies heavily on coal boilers. In order to achieve the clean heating development goal, this paper first presents a detailed investigation and mapping of the clean heating resources at county levels in the IMAR. Combined with the different energy-saving strategies, four pathways for future DH were proposed. Considering the forecasted scenarios of DH for years 2025 and 2035, this study compares the proposed pathways in terms of primary energy consumption and economic benefits. It was observed that by replacing coal boilers with clean heating resources, the clean heating sources pathway could reduce coal consumption by about 41%, with 33% annual cost savings in 2018 compared with the reference pathway. However, when taking building renovation into account, the economically optimal renovation plan lies between the proposed SHRP and FHRP. The conclusions from this study provide valuable suggestions for clean heating developments in the IMAR and other parts of Northern China.

Integrated asset management: a case study of technical and economic optimization of surface and well facilities

Oil production could be increased by using optimization techniques in each stage of oil production system from field to production unit. However, the maximum profit will be obtained once integrated optimization of surface and subsurface components of the oil production system is implemented. In addition, when using high-tech equipment and facilities, an integrated study of well and surface facilities affects the economic benefits significantly. In this work, one of the Iranian brown fields (mature or declining production fields) was studied to find the best renovation plan with maximum profits. The base scenario was designed with four stages of separation, and the high-pressure gases from the first and the second separator were planned to be sold, while the low-pressure gases from subsequent stages were supposed to be flared. In this paper, two additional scenarios, namely separator optimization and full optimization, were proposed and 12 cases were defined. In the full optimization scenario, low-pressure gases were prevented from being flared. It was observed that by stopping the flaring systems, gas production rate increases as high as 20% and 150 to 200 MW power will be generated in all cases during the next 20 years. Finally, economic evaluation for all of the cases was done and different cases were compared in terms of incremental annual worth and payback period.

Understanding and Practice of Room Temperature Control Method Based on Energy Saving Reconstruction of Public Buildings

In order to respond to national energy conservation and environmental protection policies, green building development strategies should be implemented in urban public buildings construction, and large-scale project energy-saving renovation plans should be implemented from the perspective of energy conservation. Different projects can adopt different energy-saving control methods according to actual conditions and adopt different control strategies, but the ultimate goal is to change the current situation of large energy consumption, high utilization efficiency, noise pollution, water pollution and air pollution emissions. Building energy-saving renovation and technical control, effectively improves the building energy-saving level, achieves energy-saving and consumption-reduction goals, and gives full play to the value of various resources. At the same time, the energy-saving renovation project can also help enterprises to obtain the maximum economic and social benefits and promote the sustainable development of the construction industry. In view of this, this paper will talk about how to achieve energy-saving goals in the energy-saving renovation of public buildings from the aspects of energy-saving design of indoor supporting facilities, energy-saving design of walls, energy-saving design of doors and windows and roofing energy-saving design, and how to achieve reasonable control of room temperature.

Retrofitting Hospitals: a Parametric Design Approach to Optimize Energy Efficiency

Despite many progress have been done in the renovation of the existing stock, retrofitting hospitals and other strategic buildings still represent a very challenging issue both for their complex articulation and for the need to maintain acceptable operational level. The paper reports a research activity, run at the Department of Architecture in cooperation with S. Orsola Hospital in Bologna, aimed at investigating innovative strategies for retrofitting to meet the highest energy efficiency standards at national level. The main goal of the administration was to set a renovation plan – taking into account some limitations concerning the existing building features and the budget availabilities – able to remarkably reduce energy demand while creating the minimum disruption for end users. The starting position of the research was to preserve the historical image of the building while defining a strategy to insulate it from inside. The novelty of design approach lied in defining a basic working unit which was associated to the typical room of the stay division that was used to analyse the starting conditions (indoor comfort and environmental parameters) and simulate via software modelling the potential improvements. This led to define a step by step strategy that was translated into global intervention scenarios while the basic working unit was properly re-designed and validated. This approach allowed to define a parametric strategy able to predict the impacts of renovation on each floor, on each wing and on the system as a whole while assigning a specific unit cost and a reliable renovation timing.

Optimal renovation planning of water distribution networks considering hydraulic and quality reliability indices

ABSTRACTThere is a growing concern over the need for the renovation of water distribution networks (WDNs) in Iran. According to statistics, more than 30% of pipes in WDNs are more than 25 years old. There is no effective method for identifying the priority pipes to be replaced or repaired. The main scope of this research is to present a new method for renovation planning of WDNs. A multi-objective ACO metamodel is developed by the combination of WDN simulator model (EPANET), an artificial neural network and ant colony optimization algorithm within MATLAB. Comparison of the results in the sample network showed that the design and renovation planning of the network during its lifecycle can create lower costs and higher reliability. In the real WDN, by applying the renovation planning, the operational costs reduced and the indices improved relatively. For example, the MaxPO index decreased from 11.8 to 5.8%.