A lighting, thermal and ventilation (LTV) design tool for non-domestic buildings in tropical and subtropical regions.

The paper reports on progress to date on the development of a model for predicting energy use and the effect of conservation strategies in non-domestic buildings in the tropic and subtropics. This model considers lighting loads (L), both artificial and daylight, thermal loads (T) and ventilation effects (V). It is hoped, that when completed in late 1998, the model will provide a Lighting, Thermal, and Ventilation (LTV) advocacy tool for use in the early stages of the design processes of engineers and architects. This will provide vital feedback to the early design decisions.

Retrofit of existing housing stock. A feasibility case study.

lsrael not unlike other Mediterranean country , experienced a housing construction boom in the 1950s and 1960s. Many projects from that period are currently undergoing renovation and refurbishment. This study reviewed the thermal characteristics of such projects and evaluated the current refurbishment practices vis-a- vis a combined effort including retrofit. Different solutions for a specific case study were evaluated.

Life cycle energy savings in office building.

The Tokyo Gas Kohoku NT Building, completed in March 1996, was built with the objective of achieving overall savings of energy and natural resources throughout the entire life cycle of the building, from construction to demolition. The building is expected to reduce primary energy consumption by 35% and lifecycle co2 emissions by 25%. This was combined with the positive use of natural energy sources and the introduction of a cogeneration system with an absorption chillerheater using waste heat as input for its generators.

Energy diagnostic system.

The Energy Diagnostic System (EDS) automatically reviews the energy condition of a building and performs some simple diagnostics. The system contains a thermal model of the building that has been determined earlier in a learning period of approximately 90 days after the installation of the system. This model calculates the reference energy consumption. The energy condition is determined by comparing the measured energy consumption with this calculated energy consumption.

Household energy use and environment in Asian cities: an introduction.

In the poorer countries of the world, where energy consumption per capita is lower than in the industrialized nations, the process of rapid urbanization is a strong feature of the dynamic of economic development. Population growth rates in cities are consistently higher than in the countryside, due both to higher natural increases and to net migration. Although the majority ·of Asia's population is still rural, this dominance is expected to shift sometime around the tum of the century.

Termodeck: in use performance.

As part of a long-term investigation into fabric energy storage systems, EA Technology has been monitoring the headquarters of Weidmuller Interface, the first UK application of Termodeck, since the building was occupied in July 1994. Has the system lived up to expectations?

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