This paper investigated the impact of Window to Wall Ratios (WWR) an the thermal comfort and energy lighting demand of a building in tropical zone. Simulations were carried out for a reference office proposed by Task 27 of IEA using three Window to Wall Ratios (WWR). Results were analyzed both in terms of operative temperature and energy lighting consumption. Simulations results showed that for...

Many of China’s older buildings, built in the 1970s and 1980s, faces several indoor temperature heating energy consumption problems. Based on an investigation analysis old hotel Urumqi, this paper proposes a renovation plan to improve reduce consumption, thereby introduce sustainable development strategy for winter. The effects different plans were simulated using DesignBuilder PVsyst software....

The impacts of building envelope designs are significant on indoor thermal environment, especially for naturally ventilated buildings. Parametric façade studies were investigated for various orientations, window sizes and shading devices by using building simulation (ESP-r) and CFD (FLUENT) coupling program to predict indoor thermal environment in an accurate and quick way. Two typical weeks we...

in this paper, two-dimensional heat transfer in a semi-infinite wall with fins of rectangular profile has been investigated. the conduction equations of the wall and fins are solved simultaneously by a numerical method. the principal parameters of the problem are the fin spacing, length, and fin-to-wall conductivity ratio. in this investigation, the effect of these parameters on two-dimensional...

Fenestration and its design have a significant impact on the energy use associated with the artificial lighting, heating and cooling of a building. To date, research into window optimization has been for windows that are constrained to have a regular geometric shape and position. This paper describes an approach in which a building façade is divided into a number of cells, each cell having one ...

Along with the rapid urbanization and economic growth of China over past decades, thermal comfort needs people in this region have risen dramatically, at same time, promoting building energy efficiency is cited as part major projects 14th five-year plan for improvement. In addition, outbreak COVID-19 epidemic has plunged into long-term panic, promoted entire construction industry to think about...

BACKGROUND We aimed to clarify that the size of the lung adenocarcinoma evaluated using mediastinal window on computed tomography is an important and useful modality for predicting invasiveness, lymph node metastasis and prognosis in small adenocarcinoma. METHODS We evaluated 176 patients with small lung adenocarcinomas (diameter, 1-3 cm) who underwent standard surgical resection. Tumours wer...

Received: 03.08.2015; Accepted: 15.10.2015 Fig. 1: CT thorax axial soft tissue window image at the level of lung apex showing multiple small osteocartilagenous nodules seen involving the anterior and lateral tracheal walls, sparing the membranous posterior tracheal wall Fig. 2: Oblique coronal reformatted soft tissue window CT image showing multiple small osteocartilagenous nodules seen involvi...