Evaluation of Prescriptive Indicators for Building Performance - A Ranking Based Approach

2019 ◽  
Vol 887 ◽  
pp. 172-180
Author(s):  
Ulrich Pont ◽  
Ardeshir Mahdavi
Keyword(s):  
Performance Indicators ◽  
Research Question ◽  
Key Performance Indicators ◽  
Evaluation Methodology ◽  
Design Parameters ◽  
Building Performance ◽  
Quick Method ◽  
Building Performance Simulation ◽  
Design Changes ◽  
Simple Character

In recent discussions on the evaluation methodology of different aspects of building performance, the idea of so-called prescriptive indicators was proposed. These indicators are simple benchmark values of a building, and do not require any complex calculation or simulation. They are regularly based on certain design parameters pertaining to geometric or semantic aspects of the building, such as compactness and mean weighted U-value. Their purpose – amongst others – is to equip building planners with a very quick method to estimate the performance of their building designs in early design stages and to categorize its performance. Moreover, such prescriptive indicators could be considered an alternative concept to the current practice of energy certification in Europe. The energy certificate calculation methodologies in most countries did increase in complexity in the past years. As a result, the issuing of energy certificates has become a time-consuming and cumbersome process. Moreover, the quality of results of energy certificates became questioned in recent years due to uncertainties connected to input data assumptions and widely interpretable guidelines regarding the issuing. Prescriptive indicators, if their derivation is properly documented, can at least mitigate the issue regarding issuing guidelines due to their simple character. A important research question, however, is the relation between key performance indicators, which are the results of energy certification or building performance simulation, and prescriptive indicators. This contribution suggests a methodology based on rank comparison that might help to identify prescriptive indicators that are similar in their sensitivity on design changes as certain key performance indicators are.

The Potential of Descriptive Building Specifications as an Alternative to Detailed Normative Calculations

2019 ◽  
Vol 887 ◽  
pp. 164-171
Author(s):  
Marija Marković ◽  
Ulrich Pont ◽  
Ardeshir Mahdavi
Keyword(s):  
Performance Indicators ◽  
Key Performance Indicators ◽  
Energy Performance ◽  
Building Envelope ◽  
Building Performance ◽  
The Past ◽  
Comprehensive Knowledge ◽  
Master Thesis ◽  
Relevant Calculation ◽  
Calculation Procedures

Energy performance calculations are stipulated by law in most European countries. Thereby, different calculation schemes have been developed in the past years in different countries. The physical processes in buildings were simplified in terms of normative calculation routines in most of these schemes. A major idea behind these simplifications was to enable different stakeholders (practitioners, engineers, and architects) to issue energy certificates without being simulation experts. Moreover, the simplifications needed to be described thoroughly in corresponding guidelines to ensure and facilitate the comparability of the energy performance of different buildings. However, neither of these objectives can be considered to be fully met. Regarding the former, the normative calculation procedures increased in complexity in the past years, so that the issuing of energy certificates requires not only the stakeholder’s expertise but also a comprehensive knowledge of the standards that form the calculation method. Regarding the latter, recent research efforts revealed that many guidelines do not fully cover every aspect of the calculation procedures and the assumptions regarding required input data. Thus, the comparability of energy certificates has to be strongly questioned, as a number of relevant calculation parameters are dependent on the interpretation of the corresponding issuer.Given this background, alternative approaches to building performance evaluation would be of interest. Previous approaches by different researchers suggested so called prescriptive indicators, which can be derived by basic building data (for instance, geometry and thermal quality of the building envelope components). This contribution is based on this concept. In the framework of a master thesis, a number of prescriptive indicators were considered. These indicators were derived for a set of sample buildings. In a parallel effort, energy certificates (encompassing Key Performance Indicators KPIs) were calculated for the sample buildings. It is clear that the prescriptive indicators cannot act as a 1:1 replacement for KPIs in terms of a numeric value. However, their usefulness can be expressed by the relation of the prescriptive indicator and the corresponding KPIs of a building. Thus, the results of the described calculation efforts were ranked. Subsequently, the lists of buildings ranked by the different indicators were compared in order to identify prescriptive indicators, which result in the same or at least similar ranking as the normative key performance indicators. Within this contribution, the suggested prescriptive indicators, the sample buildings, and the results of the analysis are presented and discussed.

scholarly journals Sensitivity analysis of design parameters of envelope enclosure performance in the dry-hot and dry-cold areas

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Pingan Ni ◽  
Wanjiang Wang ◽  
Hanjie Zheng ◽  
Wensi Ji
Keyword(s):  
Sensitivity Analysis ◽  
Design Parameters ◽  
Building Performance ◽  
Connection Weight ◽  
Performance Simulation ◽  
Building Performance Simulation ◽  
The North ◽  
Analysis Process ◽  
Simplified Calculation ◽  
High Degree

Abstract In a bid to quantify the sensitivity of envelope enclosure’s design parameters in the dry-hot and dry-cold areas and to provide a reference for the local building performance design, this paper uses ANN modelling which combined with the improved Garson algorithm to calculate the connection weight sensitivity (CWS), the first-order sensitivity (RBD-S1 and DMIM-S1) and the global sensitivity (DMIM-delta) of the design parameters. These parameters were calculated by using different methods in SALib. Through the verification and analysis of the sensitive result, the applicability of the CWS and DMIM-delta was confirmed. Among the design parameters involved in this study, the sum of the sensitive values of S-D, S-N and S-A exceeds 60% in each performance label, and the sum of the sensitive values of WWR_S and WWR_N exceeds 20%. The performance design of envelope enclosure in this area requires applying reasonable shading components and appropriate optimisation of the North and South of WWR. After the sensitivity analysis process, the calculation efficiency of the model can be improved as far as possible without reducing the accuracy of the model in the later simplified calculation and multi-objective optimisation. The building performance simulation model has a high degree of non-linearity, and the interpretability of the model can be enhanced through the sensitivity analysis process. Although the internal calculation process is unknowable, the perception of the results caused by the input parameters is significantly enhanced.

Key performance indicators for the maintenance of public hospitals buildings in the Gaza Strip

Facilities ◽  
2015 ◽  
Vol 33 (3/4) ◽  
pp. 206-228 ◽  
Author(s):  
Adnan Ali Enshassi ◽  
Farida El Shorafa
Keyword(s):  
Health Care ◽  
Performance Indicators ◽  
Public Hospital ◽  
Gaza Strip ◽  
Key Performance Indicators ◽  
Public Hospitals ◽  
Building Performance ◽  
Content Type ◽  
Care Situation ◽  
The Gaza Strip

Purpose – The purpose of this paper is to identify and assess the key performance indicators (KPIs) for the maintenance of public hospital buildings in the Gaza Strip. Design/methodology/approach – Four KPIs were identified and evaluated in this paper: building performance indicators (BPI), maintenance efficiency indicators (MEI), annual maintenance expenditure (AME) and urgent repair request indicator. Twenty-one buildings in 13 public hospitals in Gaza Strip Governorate were taken as the sample of this study. Findings – The results indicated that the European Gaza hospital has the highest BPI score (81.66) and the Dorra hospital has the lowest BPI score (68.26). The findings revealed that the average AME for all hospitals was $13.8/m2 which is considered to be below the standard level of expenditure. The MEI for Gaza public hospital buildings was found to be equal to 0.3 which indicated low level of maintenance expenditure. Research limitations/implications – Unavailability of certain data, lack of maintenance documentation and comparison difficulty between the Gaza Strip and Israel due to political, cultural and financial situation were some of the limitations of this study. Practical implications – The Ministry of Health (MoH) can utilize the results of this study and consider it as benchmarking for maintenance management in public hospital buildings. This can improve the current maintenance situation which ultimately will improve the health-care situation in Palestine. The Palestinian MoH should look for external funding to increase the AME, as well as aim at increasing the MEI. Social implications – The health-care situation in Palestine will be improved. Originality/value – This study is considered the first study to identify and assess the KPIs in the Gaza Strip. KPIs will assist the MoH to compare the actual and estimated performance in terms of effectiveness, efficiency and quality of workmanship.

Optimalisasi Key Performance Indicators (KPI) Melalui Pendekatan Balance Scorecard Upaya Mengimplementasikan Performance Management System (PMS) Pada Perguruan Tinggi

CCIT Journal ◽  
2012 ◽  
Vol 6 (1) ◽  
pp. 17-34
Author(s):  
Untung Rahardja ◽  
Muhamad Yusup Eva ◽  
Rosyifa Rosyifa
Keyword(s):  
Performance Indicators ◽  
Management System ◽  
Educational Institution ◽  
Key Performance Indicators ◽  
Individual Performance ◽  
The State ◽  
Public Institution ◽  
Performance Measurement System ◽  
Educational Institutions ◽  
Successful Implementation

SQL Server Reporting Services is a way to analyze data, create reports using the indicators and gauges. Indicators are minimal gauges that convey the state of a single data value at a glance, and most are used to represent the state of Key Performance Indicators. Manage and harmonize the performance of an institution's educational institutions, especially universities with the performance of individuals or resources, no doubt is one of the essential elements for the success of an entity of the institution. Integrate the performance of an educational institution with individual performance is not an easy process, and therefore required a systematic approach to manage it. Implementation of a strategic management system based Balanced Scorecard can be used as a performance measurement system that will continuously monitor the successful implementation of the strategy of any public educational institution and measure the performance of its resources in a comprehensive and balanced, not the quantity but the emphasis is more concerned with the quality, so the performance of educational institutions at any time can be known clearly. Contribution of Key Performance Indicators to manage and harmonize the performance of any public institution is a solution in providing information to realize the extent of work that has set targets, identify and monitor measures of success, of course, with performance indicators show a clear, specific and measurable.

Strategic planning in grassland farming: Principles andapplications

1997 ◽  
pp. 191-197
Author(s):  
W.J. Parker ◽  
N.M. Shadbolt ◽  
D.I. Gray
Keyword(s):  
Strategic Planning ◽  
Performance Indicators ◽  
Cost Effective ◽  
Key Performance Indicators ◽  
Strategic Plans ◽  
Effective Manner ◽  
Farm Business ◽  
Pastoral Farming ◽  
Financial Environment

Three levels of planning can be distinguished in grassland farming: strategic, tactical and operational. The purpose of strategic planning is to achieve a sustainable long-term fit of the farm business with its physical, social and financial environment. In pastoral farming, this essentially means developing plans that maximise and best match pasture growth with animal demand, while generating sufficient income to maintain or enhance farm resources and improvements, and attain personal and financial goals. Strategic plans relate to the whole farm business and are focused on the means to achieve future needs. They should be routinely (at least annually) reviewed and monitored for effectiveness through key performance indicators (e.g., Economic Farm Surplus) that enable progress toward goals to be measured in a timely and cost-effective manner. Failure to link strategy with control is likely to result in unfulfilled plans. Keywords: management, performance

Sign in / Sign up

Export Citation Format

Share Document