Showing papers in "Energy and Buildings in 2007"

TL;DR: In this paper, a literature survey on buildings' life cycle energy use was performed, resulting in a total of 60 cases from nine countries, including both residential and non-residential units.

TL;DR: In this paper, a new innovative concrete with phase change materials (PCM) on thermal aspects is proposed to study the effect of the inclusion of a PCM with a melting point of 26 °C.

TL;DR: The research uses results from field surveys to formulate a method for simulation of office buildings to include the effects of window opening behaviour on comfort and energy use and finds that the proportion of windows open depends on indoor and outdoor conditions.

TL;DR: In this paper, the impact of using cool roof coatings on cooling and heating loads and the indoor thermal comfort conditions of residential buildings for various climatic conditions is estimated, and the results show that increasing the roof solar reflectance reduces cooling loads by 18-93% and peak cooling demand in air-conditioned buildings by 11-27%.

TL;DR: In this article, a new analytical model is proposed for ground-coupled heat pump (GCHP) systems, which yields results very similar to the tabulated numerical ones proposed in the literature.

TL;DR: A method for assessing the building performance by occupant surveys calculating the weighted importance of every satisfaction parameter in relation to the general acceptance of the workplace and then ranking the different satisfaction parameters is introduced.

TL;DR: In this article, the authors report on a study of resource consumption in 184 Hilton International and Scandic hotels in Europe, and present an overview of the characteristics of these two brands (upscale and mid-market, respectively), as well as the collective resource consumption.

TL;DR: In this paper, the authors present an overview of the method and software that can be used to perform building energy audits and assess buildings in a uniform way, perform demand and savings calculations, provide owners with specific advice for measures to improve energy performance, issue an energy performance certificate for existing buildings, and include some representative results from the pilot studies performed in several European countries.

TL;DR: In this article, the authors describe the field performance of air conditioning with an energy pile system, which was applied to the pile foundations of an actual building for the purpose of reducing the cost of the underground heat exchanger.

TL;DR: In this article, an emergy analysis has been applied to a building to account for the main energy and material inflows to the processes of building manufacturing, maintenance and use, and a comprehensive appraisal of the building industry is then expected through a series of synthetic indices.

TL;DR: In this paper, the authors present a method for motivating energy-saving behaviors and presenting energy-use information on two display types: central and local ECCs, based on a categorisation of user interaction with individual types of appliances.

TL;DR: In this article, the quality of households, the operational conditions and the energy spent per income group were analyzed for the major Athens area during 2004 and the sample was divided in seven income groups and a detailed analysis has been performed.

TL;DR: In this paper, the authors reviewed standards and guidelines on design, installation, commissioning, operation, and maintenance of HVAC installations in hospital operating rooms, indoor thermal conditions, and summarized measured data from short monitoring of indoor thermal condition along with audit results and main characteristics of 20 ORs in 10 major Hellenic hospitals.

TL;DR: In this article, the authors explored the pattern of variation of the desired thermal sensation on the ASHRAE scale, applying the method of direct enquiry, and found that the mean desired sensation depended to some extent on the actual sensation, there being a positive correlation in the region from 'neutral' and 'warm' and a negative correlation outside this region.

TL;DR: In this article, the authors investigated the potential of the more promising new developments on the field of passive cooling, like the cool reflective coatings to improve outdoor and indoor conditions of low-income households in warm areas of the planet, ground cooling using earth to air heat exchangers, and discusses the new ventilation techniques and systems for improving indoor comfort and air quality.

TL;DR: In this paper, a novel method for detecting abnormal energy consumption in buildings based on daily readings of energy consumption and peak energy consumption is described, which uses outlier detection to determine if the energy consumption for a particular day is significantly different than previous energy consumption.

TL;DR: In this paper, an experimental investigation into heat transfer and mass flow in thermosyphoning air heaters, such as solar chimneys and Trombe walls, was conducted.

TL;DR: In this article, the authors present a methodology to assess the suitability and economic viability of micro-wind turbines for domestic dwellings in the UK using a modelling tool called μ-Wind.

TL;DR: In this article, the authors analyzed the relationship between thermal conductivity and the thickness of selected insulation materials for building wall and found that the relationship is non-linear and obeys a polynomial function.

TL;DR: In this article, the key factors of FES technology, such as flywheel material, geometry, length and its support system were described, which directly influence the amount of energy storage and flywheel specific energy.

TL;DR: In this paper, a numeric model based on the enthalpy approach was developed to simulate heat transfer in phase change materials (PCM) in water tank storage, taking into account the conduction and the convection into PCM as well as at the interface between PCM and water of the storage.

TL;DR: In this paper, a new energy classification technique based on intelligent clustering methodologies is proposed for school buildings, which provides specific information on their energy consumption and efficiency relative to other buildings of similar nature and permits a better planning of interventions to improve its energy performance.

TL;DR: In this article, a high-rise commercial building in Shanghai, China is used to analyze the energy performance of a high rise commercial building using the DOE-2 energy model, which is built up with the detailed data of building and system that are collected on as-built drawings, specifications, operating records and site surveys.

TL;DR: In this article, the authors present application range and functionality of thermally activated building systems (tabs) for energy efficient and economical cooling and heating of commercial buildings, where the building structure is used as thermal storage allowing the use of renewable energy sources.

TL;DR: In this article, the influence of the position and the colour of the blinds on the cooling consumption of an office building with a double-skin facade is examined, and it is shown that external solar protection is more effective than internal shading devices.

TL;DR: In this article, a simplified model to simulate heat flows in buildings is presented, taking a standard two-node resistance-capacitance model as a starting point to improve the handling of external surface radiant and convective energy exchanges, internal convective exchanges and the placement of capacitance in multi-layer walls.

TL;DR: In this paper, the effect of carbon nanotubes (CNTs) on nucleate boiling heat transfer is investigated, and two halocarbon refrigerants of R123 and R134a for building chillers were used as working fluids and 1.0% of CNTs were added to them to examine the heat transfer enhancement with CNT.

TL;DR: In this article, a phase change materials (PCM) wallboard room was constructed by attaching PCM wallboards, developed by incorporating about 26% PCM by weight into gypsum wallboard, to the surface of an ordinary wall.

TL;DR: In this paper, the authors describe how environmental design considerations in general, and ventilation considerations in particular, shape the architecture of advanced naturally ventilated (ANV) buildings and a taxonomy of ANV buildings is presented.