scholarly journals HVAC System Enhancements for Improved IEQ and Energy Efficiency “Tropical Low Hanging Fruits”

2020 ◽  
Author(s):  
Chandra Sekhar ◽  
Keyword(s):  
Energy Efficiency ◽  
Fossil Fuels ◽  
New Technologies ◽  
Cost Effective ◽  
Energy Performance ◽  
Normal Operation ◽  
Indoor Environmental Quality ◽  
Primary Role ◽  
Hvac System ◽  
Existing Building

The HVAC system needs to serve the primary role of conditioning the air before it is delivered to the occupied zones of a building. The increasing focus on human centricity in buildings and the unquestionable need to curb the dependency on fossil fuels due to climate change considerations has necessitated the HVAC design professionals to explore innovative means and strategies to enhance HVAC system performance for improved Indoor Environmental Quality (IEQ) and energy efficiency. This paper deals with simple cost effective interventions, comprising new strategies or technologies in the tropics, dubbed Tropical Low Hanging Fruits that could significantly improve the energy performance of the buildings whilst simultaneously enhancing IEQ. It is obvious that new technologies or strategies are easier to be implemented in new buildings. However, such technologies could be easily seen as viable options during the refurbishment phase of an existing building. In addition, several interventions become easily possible in the normal operation stage of a building. The various technologies/strategies presented in this paper are discussed in the context of both new and existing buildings.

DOI Theoretical Framework

2018 ◽  
pp. 144-166
Keyword(s):  
Diffusion Of Innovations ◽  
Fossil Fuels ◽  
New Technologies ◽  
New Technology ◽  
Cost Effective ◽  
Theoretical Framework ◽  
Adaptation To Climate Change ◽  
New Ideas ◽  
The Masses ◽  
Structured Means

Change is not easy! People adhere to old routines and habits tenaciously. Most people are slow to accept new ideas, new products, in short, innovations. When it comes to new technologies that can aid in adaptation to climate change, there is fierce resistance from farmers (to sustainable agriculture), from the fossil fuels industries (to sustainable energy), from developers (to going green), and the list goes on. While a new technology does involve a certain investment of time and money at first, it is cost effective and profitable in the long term. When it comes to sustainability, nothing less than the future of our planet is at stake, so it is incumbent upon us to find a way to “sell” the innovations to the masses. The Diffusion of Innovations (DOI) Theoretical Framework provides an effective, structured means of doing this; its efficacy has been established for hundreds of innovations, and it is particularly suited to technologies.

Assessing occupant satisfaction and energy behaviours in Toronto’s LEED gold high-rise residential buildings

2014 ◽  
Vol 8 (4) ◽  
pp. 492-505 ◽  
Author(s):  
Craig Brown ◽  
Mark Gorgolewski
Keyword(s):  
Energy Efficiency ◽  
Energy Savings ◽  
New Technologies ◽  
Residential Buildings ◽  
Indoor Environmental Quality ◽  
Efficient Manner ◽  
Content Type ◽  
High Rise ◽  
Evaluation Approach ◽  
Occupant Satisfaction

Purpose – This paper aims to present four purposes: to assess occupant satisfaction with indoor environmental quality (IEQ); to determine if occupants appear to be operating their dwellings in an energy efficient manner; to suggest ways that occupant satisfaction and behaviour can help or hinder energy efficiency; and to show that the post-occupancy evaluation approach is an effective tool in diagnosing and improving satisfaction and energy efficiency in high-rise residential buildings. Design/methodology/approach – Beyond measuring occupant satisfaction with IEQ, this paper uses scores and user comments from occupant questionnaires to identify success and indicate frustration and/or confusion with particular building technologies. It also extrapolates the energy efficiency implications of these responses in four Leadership in Energy and Environmental Design Gold residential towers. Findings – The research highlights where problems occur, particularly with the adoption of new technologies which may not be well understood by the occupants. It also identifies behaviour patterns that may negate energy efficiency strategies. Research limitations/implications – The lack of dwelling metre data prevents this research from making causal links between behaviours and their energy implications. Also, the lack of Canadian benchmarks for satisfaction of occupants means that comparisons can only be made to cases from the UK, which is less robust. Originality/value – This type of work has never been done in Canadian residential high rise towers before. It helps to better understand the process of ensuring that occupants successfully adopt innovation that can lead to energy savings.

scholarly journals The adaptable energy platform

2019 ◽  
Author(s):  
Eur Ing A J Blokland ◽  
I P Barendregt ◽  
C J C M Posthumus
Keyword(s):  
Energy Efficiency ◽  
Energy Demand ◽  
Fossil Fuels ◽  
New Technologies ◽  
Energy Levels ◽  
Life Time ◽  
Energy Resources ◽  
Design Parameters ◽  
Green Technologies ◽  
Operational Energy

The Netherlands Ministry of Defence (MoD) has issued an Operational Energy Strategy (OES) with ambition targets for energy independence and improvement of energy efficiency during the life time of naval platforms. A target is given in 2030 of 20 % reduced dependence on fossil fuels and in 2050 of 70 % reduced dependence on fossil fuels, compared to 2010. More stringent environmental emission (NOx, CO2, etc.) requirements are to be expected as a result from IMO and (local) political regulations. In the last decades the power consumption on board of naval platforms increased substantially as well as the complexity of integrated energy systems. Market surveys shows that the evolution of commercial green technologies are promising but have to be demonstrated in the coming years on low power and energy levels. They will not be de-risked in depth or well proven to be successful in time to be selected for the Royal Netherlands Navy (RNLN) new naval projects (2019 – 2025). Furthermore, new technologies as energy resources and carriers (H2, LNG, methanol, power-to-liquid (PTL), etc.) or new system technologies (DC on high voltage level, fuel cell systems, waste energy recovery, etc.) require a new approach for integration aspects like hazard and safety cases and energy efficiency. This is because the energy demand on board of naval platforms in several military operational modes differ from the merchant and off-shore branch. In this paper an approach for an adaptable energy platform is described to design a new naval platform based on nowadays proven technology as fossil fuels that can be transformed during life time that can fulfill the expectations and requirements of the coming decades (non-fossil fuels, zero emission, improved energy efficiency). Aspects as a naval energy index as reference will be discussed as well as an evaluation of new technologies for new naval platform integration design parameters, such as power or energy demands, consequences of energy resources, energy control as well as build in ship construction safety measures.

scholarly journals Energy Efficient Improvements of Existing Buildings through Building Envelope Upgrade Case Study of High Rise Block of Flats on 76, Boulevard Partizanski Odredi in Karpos IV, Skopje

2016 ◽  
Vol 2016 ◽  
pp. 1-180
Author(s):  
Katerina Petrushevska
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Energy Performance ◽  
Building Envelope ◽  
Living Room ◽  
Building Stock ◽  
Existing Building ◽  
High Rise ◽  
Class B

AIM: This research examines the important issue of energy efficient improvements to the existing building stock through building envelope upgrade. To facilitate this, the energy performance characteristics of the existing building stock were identified with a view to establishing an existing building stock type, where building envelope upgrades can contribute to a higher level of energy efficiency improvements. The literature review along with the selected building precedents was used to establish the best current practice for building envelope upgrades.MATERIAL AND METHODS: Established building precedents and identified best practice for building envelope upgrade, a high rise block of flats was identified and used as a case study, with the current and predicted, following building envelope upgrade, energy performance of the building calculated. This has allowed us to identify the possible energy efficiency improvements for this type of building following the building envelope upgrade. RESULTS: In the projected case, the building with energy class - "D" become class "B". In addition, increased quality of the living room in the attic was enabled. It was possible to obtain a decrease of the heating energy from 130.76 kWh/m²a to 37.73 kWh/m²a or to jump in the class "B" of energetic passport.CONCLUSION: This research contributes to the local implementation of the global agenda for sustainable development, design and construction, and it demonstrates the possible way and level of energy efficiency improvements to the least efficient building stock through existing building envelope upgrade.

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.

scholarly journals Research on the synergy incentive evolution among the EPC subjects of energy efficiency retrofitting of existing buildings from the perspective of fairness cognition

2020 ◽  
Author(s):  
Yanping Yang ◽  
Bojun Wang ◽  
Xiaodan Liu
Keyword(s):  
Energy Efficiency ◽  
Quality Management ◽  
Revenue Sharing ◽  
Energy Performance ◽  
Existing Buildings ◽  
Incentive Effect ◽  
Existing Building ◽  
Performance Contracting ◽  
Effort Level ◽  
The Impact

Abstract In the energy performance contracting (EPC) mode, the energy services company (ESCO) involved in energy efficiency retrofitting of existing buildings often faces the parallel construction of multiple tender segments and multi-professional subcontractors. The one-to-many structure for ESCO and subcontractors causes difficulties to the project quality management and directly affects the effect of energy efficiency retrofitting of existing buildings. Therefore, this paper constructs a revenue-sharing incentive model by considering situation where subjects have fairness cognition. Through the social calculation experiment of the model, results show the following: (1) increasing the revenue-sharing coefficient will help to optimize the engineering quality of energy efficiency retrofitting and increase the energy-saving income; (2) in order to get better incentive effect, the engineering quality grade of energy efficiency retrofitting should match with the incentive strength; (3) because of the impact of fairness cognition, the incentive level difference is too large, and the incentive effect will gradually weaken in the subsequent incentive cycle; (4) subcontractor’s effort level changes can prompt ESCO to adjust the corresponding incentive intensity. Finally, some suggestions are put forward to optimize the engineering quality management of energy efficiency retrofitting of existing building, which is of great significance to improve the effect of energy efficiency retrofitting of existing building under EPC mode.

Integration of Small Wind Energy Source for Optimization of Energy Efficiency in Residential Building

2014 ◽  
Vol 1041 ◽  
pp. 162-166
Author(s):  
Rastislav Ingeli ◽  
Eva Jankovichová ◽  
Minh Nguyen Tien ◽  
Miroslav Čekon
Keyword(s):  
Energy Source ◽  
Energy Efficiency ◽  
Renewable Energy ◽  
New Technologies ◽  
Housing Stock ◽  
Renewable Energy Sources ◽  
Residential Building ◽  
Energy Performance ◽  
Residential House ◽  
Key Indicators

According to current European strategy and effort, an integration of renewable energy sources (RES) applying of new technologies should have of crucial importance, especially with contribution to the energy efficiency optimizing in buildings. Concurrently, energy performance and energy consumption of the all housing stock is one of the key indicators that represent the adequate utility value of those efforts. The paper focuses on the proposal concept integration of renewable energy for residential house in relation to assessment of the building thermal and energy performance. The proposed concept applying of wind turbines is presented for residential building in terms of standardized target periods. Finally, payback period calculation demonstrates a certain potential of applying small wind turbine as a renewable energy source in residential building of recently given target periods of current technical regulation.

scholarly journals Impact of Energy Monitoring and Management Systems on the Implementation and Planning of Energy Performance Improved Actions: An Empirical Analysis Based on Energy Audits in Italy

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4723
Author(s):  
Carlos Herce ◽  
Enrico Biele ◽  
Chiara Martini ◽  
Marcello Salvio ◽  
Claudia Toro
Keyword(s):  
Energy Efficiency ◽  
Energy Savings ◽  
Energy Transition ◽  
Cost Effective ◽  
Clean Energy ◽  
Energy Performance ◽  
Management Systems ◽  
Energy Monitoring ◽  
Energy Audits ◽  
The Impact

The implementation of monitoring tools and energy management systems (EnMSs) supports companies in their long-term energy efficiency strategies, and they are essential to analyse the effectiveness of energy performance improvement actions (EPIAs). The first fundamental step towards increasing energy efficiency is the development of energy audits (EAs). EAs provide comprehensive information about the energy usage in a specific facility, identifying and quantifying cost-effective EPIAs. The crucial role of these tools in clean energy transition is remarked by the European Energy Efficiency Directive (EED), which promotes the implementation of EAs and EnMS programmes. The purpose of this work is to better understand the link between EnMSs (specifically ISO 50001) and EAs in the EED Article 8 implementation in two industrial and two tertiary sectors in Italy. Moreover, the impact of company size, energy monitoring systems, and EnMSs on planned and/or implemented EPIAs is analysed. Our findings show that, albeit the complexity of the variables involved in energy efficiency gap, the “energy savings/company” and “EPIA/site” ratios are higher in enterprises with an EnMS and monitoring system. Thus, a correct energy audit must always be accompanied by a specific monitoring plan if it is to be effective and useful to the company decision maker.

scholarly journals Study of the Energy Performance of Different PV Arrays Configurations Under Partial Shading

2021 ◽  
Vol 229 ◽  
pp. 01044
Author(s):  
Mustapha Elyaqouti ◽  
Driss Izbaim ◽  
Lahoussine Bouhouch
Keyword(s):  
Energy Efficiency ◽  
Cost Effective ◽  
Energy Performance ◽  
Electrical Behavior ◽  
Partial Shading ◽  
Photovoltaic Arrays ◽  
Simulation Results

The objective of this paper is to study the energy performance and electrical behavior of possible configurations for photovoltaic Arrays under different partial shading scenarios in order to determine the most suitable and cost effective configuration. The studied configurations in this work are: Series (S), parallel (P), series-parallel (SP), Total Cross Tied (TCT), Bridge Linked (BL) and Honey-Comb (HC). The simulation results provide information on the electrical behavior and energy efficiency of PV Arrays under different scenarios of partial shading and in uniform conditions.

scholarly journals A STUDY OF THE ENERGY EFFICIENCY RENOVATION ON PUBLIC HOUSING PROJECTS

2012 ◽  
Vol 7 (1) ◽  
pp. 192-212 ◽  
Author(s):  
Qian Chen ◽  
Qian Ma
Keyword(s):  
Energy Efficiency ◽  
Public Housing ◽  
Cost Effective ◽  
Building Energy ◽  
Energy Performance ◽  
High Energy ◽  
Efficiency Measures ◽  
The Government ◽  
Financial Burdens ◽  
Whole Building Energy Simulation

While the energy efficiency of commercial buildings, schools, and private homes has received increasing attention, the energy performance of public housing has long been neglected. The high energy usage and resulting utility costs associated with such subsidized houses have added great financial burdens to the government and tenants. Therefore, improving public housing's energy performance becomes an important task. This paper presents a comparative study that mainly investigates the effectiveness of energy efficiency measures (EEMs) recently implemented in the Columbus Metropolitan Housing Authority's green renovation projects. Whole building energy simulation results show that due to budget constraints, the limited EEMs put into place would only result in a marginal (7.6%) improvement to the renovated building's energy performance prior to renovation. Another 38.5% reduction would be needed, using the performance requirement of the current building energy code as a reference. Based on these findings, this research offers some insights into more cost-effective energy efficiency upgrades that can help reduce public housing's energy consumption and green renovation costs.

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