Evaluates simple methods for the prediction of energy consumption or fault detection as a result of old equipment in a commercial building in Lyon, France. The correlation between electricity consumption and external temperature was analysed.
The complex design, build, maintain and retrofit process has been mapped in order to provide a logical structure and flow for the kitchen design system. The developed prototype kitchen design concept demonstrates the capabilities and requirements of a truly integrated and efficient design process. The design of the professional kitchen environment follows the methodology of the industrial design process. The kitchen layout design and time dependent internal loads are specified through the understanding of a specific restaurant and its food service process.
One of the reasons for using displacement ventilation is that it may provide better indoor air quality in the occupied zone than conventional mixing ventilation. It is therefore important to understand the importance of the system on this aspect. A validated CFD model was employed to generate concentration distribution data for CO2, radon and moisture in a Hong Kong shop with displacement ventilation. Analysis found that the concentration distribution affected by factors such as the source type and location, its associated plume strength and human body convection, etc.
A field study was carried out to establish the performance of five thermal distribution systems in four large commercial buildings. They were standard single-duct or dual-duct constant air volume (CAV) system and variable air volume (VAV) systems, serving buildings with floor area greater the 2000 m2. Reports the duct air leakage. The ELAs ranged from 0.7 to 12.9 cm2/m3 of duct surface area, and from 0.1 to 7.7 cm2/m2 of floor area.
The article examines the feasibility of using thermal performance lines in assessing the efficiency of using energy in air conditioned commercial buildings in Hong Kong. A regression study is outlined, which was aimed at identifying a suitable climatic variable that would yield linear thermal performance lines for Hong Kong commercial buildings. Researchers based the study on the monthly electricity consumption of 26 existing office/commercial buildings obtained from a recent survey.
Ventilation performances in existing buildings are not well known, in France. They are not often checked. This paper shows how a method for checking the performance of ventilation could be applied in France. Such a method, mainly based on visual inspections and simple measurements has already been used for years in Sweden. The Swedish method has been tested in France, in collaboration with a Swedish inspector, on different commercial buildings of different sizes and ages : two secondary schools, one primary school, one office building, one hotel and one bar.
The possibility of using natural ventilation for commercial buildings is increasingly being considered. To assist natural ventilation in these buildings atriums are often suggested for the building's design as well as mechanical systems providing low air change rates. To ensure that natural ventilation will meet today's comfort expectations the proposed design needs to be evaluated using dynamic simulation software.
For more than 100 years, temperature control has been the principal concern of our industry. That focus and our collective efforts have achieved immense improvements in the human condition – improvements so fundamental that they are usually overlooked and unappreciated, even by ourselves. We seldom reflect on what the world was like before the refrigeration of food and medicine, or before the availability of low-cost, reliable heat in the winter and cooling in the summer. However, in spite of- or because of- those achievements, the expectations of the public have moved higher.
Login