System for the Measurement of Efficiency of Heat Recuperation in Ventilation Systems in Energy Efficient Buildings

2014 ◽  
Vol 223 ◽  
pp. 308-315 ◽  
Author(s):  
Stanisław Kozioł ◽  
Andrzej Zbrowski

The system developed at the Institute for Sustainable Technologies – National Research Institute is intended for heat recuperation efficiency tests for recuperators used in ventilation systems in modern, passive buildings. It allows a complex and precise assessment of the efficiency of recuperators, directly influencing the cost of energy used to provide thermal comfort inside a building.

2018 ◽  
Vol 3 (6) ◽  
pp. 201-211 ◽  
Author(s):  
Nadzirah Zainordin ◽  
Siti Marina Abdullah ◽  
Zarita Ahmad@Baharum

A well-designed energy efficient building maintains the best environment for human habitation while minimising the cost of energy. The energy efficient buildings are to improve the comfort levels of the occupants and reduce energy use (electricity, natural gas, etc) for heating, cooling and lighting (Development and Land Use Policy Manual for Australia, 2000 and United Nations, 1991). This paper is an inquiry to investigate the users' perceptions towards lights and space of energy-efficient buildings. The research is based on qualitative and quantitative data collection. The findings revealed that users have mixed feeling towards light and space especially with the use of new working practices i.e. hot desking, hotelling etc. Keywords light, space, user perception, energy efßcient building. eISSN 2514-751X © 2018. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open-access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.


Author(s):  
Jake Barker ◽  
Bo Xia ◽  
George Zillante

There is a growing demand for sustainable retirement villages in Australia due to an increasing number of ageing population and public acceptance of sustainable development. This research aims to gain a better understanding of retirees’ understanding about sustainable retirement living and their attitudes towards sustainable developments via a questionnaire survey approach. The results showed that the current residents of retirement villages are generally very conscious of unsustainable resource consumption and would like their residences and community to be more environmentally friendly and energy efficient. The cost of energy supply is a concern to majority of respondents. However there is a certain level of concerns from residents too on the extra cost of going green in their residence. Education is required to residents about recycling household waste and how to use available facilities. A better understanding of retirees’ awareness and attitudes towards sustainability issues helps to improve the sustainable developments of retirement villages in the future.


2014 ◽  
Vol 1041 ◽  
pp. 105-108
Author(s):  
Anna Sedláková ◽  
Pavol Majdlen ◽  
Ladislav Ťažký

The building envelope is a barrier that separates the internal environment from the effects of weather. This barrier ought to facilitate the optimal comfort of the interior environment in winter as well as summer. It has been shown in practice that most building defects occur within the building envelope. This includes external walls, roofs and floors too, and is impartial to new or renovated buildings. Heat losses of buildings through external constructions – roof, external walls, ground slabs are not negligible. It is therefore important to pay more attention to these construction elements. Basementless buildings situated on the ground are in direct contact with the subgrade and its thermal state. An amount of heat primarily destined for the creation of thermal comfort in the interior escapes from the baseplate to the cooler subgrade. The outgoing heat represents heat losses, which unfavourably affect the overall energy efficiency of the building. The heat losses represent approximately 15 to 20 % of the overall heat losses of the building. This number is a clear antecedent for the need to isolate and minimalize heat flow from the building to the subgrade.


2016 ◽  
Vol 177 ◽  
pp. 60-70 ◽  
Author(s):  
Eduardo Balvís ◽  
Óscar Sampedro ◽  
Sonia Zaragoza ◽  
Angel Paredes ◽  
Humberto Michinel

2014 ◽  
Vol 32 (4) ◽  
pp. 415-423 ◽  
Author(s):  
Richard Greenough ◽  
Paolo Tosoratti

Purpose – The purpose of this paper is to identify the factors present in successful energy efficiency investments that might indicate how to resolve the landlord-tenant dilemma in existing and new commercial property. Design/methodology/approach – The paper reviews literature to indicate the importance of energy efficiency in buildings and to explore the barriers to such investments, including problematic landlord-tenant relationships. Such relationships have been investigated by the International Energy Agency, and a similar approach is used here in two case studies in new and existing buildings. These studies explore the nature of landlord-tenant relationships and the importance of policy and standards of building performance. Findings – In neither case did landlord-tenant issues constitute barriers to investments in energy efficiency, however, these investments were made for other reasons than simple cost savings. Construction of new commercial property to Passivhaus standards ensures a high-build quality and a comfortable building with low-energy costs. The added value to tenants may justify the cost of construction. The cost of investments in energy efficient buildings can also be justified by the enhanced reputation of landlords which may be more valuable than a DEC rating. In neither case was the commercial Green Deal felt to be an attractive funding mechanism. Practical implications – Conclusions based on these case studies must be regarded as tentative, so future studies of successful energy efficient buildings should be undertaken to explore the motivation to invest, particularly the relative importance of indirect benefits of energy efficiency. Originality/value – One of the case study buildings is exceptionally energy efficient and is the result of a particularly open and effective contractual relationship. Further study of such cases may suggest a new approach to landlord-tenant problems of energy efficiency, even in refurbishment of existing buildings.


2014 ◽  
Vol 632 ◽  
pp. 95-105
Author(s):  
K.S. Rakesh ◽  
M.P. Devaki

Energy conservation is one of the critical issues facing society today. Our civilization depends on energy for its sustenance. However, energy resources are finite and the ever increasing demands being made for diminishing supplies increases the cost of energy putting it beyond the reach of a large part of society. Renewable energy concepts for new communities offer exciting possibilities for new forms of living. Since India is blessed with abundant sunshine, we can plan and organize our settlements for utilizing renewable energy resources and implementing innovative concepts for shelter, transportation, etc.


Author(s):  
Aiman Albatayneh ◽  
Sulaiman Mohaidat ◽  
Atif Alkhazali ◽  
Zakariya Dalalah ◽  
Mathhar Bdour

Containing and then reducing greenhouse gas (GHG) emissions require designing energy efficient buildings which save energy and emit less GHG. Orientation has an impact on the building’s overall thermal performance and designing heating and cooling to reach occupants’ thermal comfort. Correct orientation is a low cost option to improve occupant's thermal comfort and decrease cooling and heating energy. An appropriate building orientation will allow the desirable winter sun to enter the building and allow ventilation in the summer by facing the summer wind stream. In this paper, a building module in Jordan will be assessed using Design Builder Simulation packages to find the effect of the building orientation on the overall thermal performance. It was found that the larger windows should be in the southern walls in the northern hemisphere to provide the most heat to the building through the window which allows the sun in winter to enter the building and heat it up. This will reduce the amount required for heating by approximately 35% per annum.


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