introduction reducing and optimizing energy consumption and consequently environmental pollution reductions, besides improving building performance providing occupants comfort conditions, make the building's concept closer to the concept of green building and sustainability. once the decision to build green has been made, one of the first steps in the green design process is to establish f...

Keramatollah Akbari, Jafar Mahmoudi TDI researcher at ACECR, Iran and Mälardalen University, PhD student, School of Sustainable Development of Society and Technology, Västeras, Sweden [email protected] Mälardalen University, Adj Professor at School of Sustainable Development of Society and Technology, Västeras, Sweden [email protected] Abstract A heat recovery ventilation system en...

Exposure to air pollution in city centers is of major concern because of its health-risks to urban dwellers, trafficcorridor users and even to in-transit commuters. The steady growth in traffic is the major source of toxic air pollutants in urban centers these days. Therefore, studying exposure to air pollutants in urban centers is of special interests to environmental health scientists. This s...

background: radon (222rn) measurement in the residential environments is very important because of its effecting on human health and causing cancer in the respiratory system. 222rn is individually responsible for half of the natural radiation received in humans and influences on human by breathing. hence, this study was undertaken to access the 222rn level in the dormitories of kerman universit...

The main objectives of this study were to investigate vernacular passive cooling techniques and their potential application for improving indoor thermal comfort of naturally ventilated, modern brick terraced houses in Malaysia. Field measurement was conducted in two traditional timber Malay houses and two traditional masonry Chinese shophouses to examine their indoor thermal environments. The r...

The aim of the present work is to maximize indoor environmental quality (IEQ), in particular air quality, and energy performance in schools, when having different ventilation alternatives combined with carbon dioxide feedback. In this effort, trial measurements and energy simulations were conducted to predict and compare the indoor environmental and energy performance in an otherwise similar sc...

Multiple-split air conditioning (MSAC) system has become an attractive form of air-conditioning system for smallsized commercial and residential buildings. For a common room air conditioner, the only factor affecting the performance under a fixed outdoor and indoor condition is load rate of the indoor unit. But for the MSAC system, the indoor units will have quite different working situations u...

BACKGROUND Indoor air pollution (IAP) constitutes a major global public health problem requiring increasing efforts in research and policymaking that may have special significance for elderly that are likely to spend most of their day indoors and appear to be particularly susceptible to adverse effects of chemical pollutants and bio-contaminants. Yet, evidence existing on the effects of IAP in ...

Indoor air pollution (IAP) caused by solid fuel use and/or traditional cooking stoves is a global health threat, particularly for women and young children. The WHO World Health Report 2002 estimates that IAP is responsible for 2.7% of the loss of disability adjusted life years (DALYs) worldwide and 3.7% in highmortality developing countries. Despite the magnitude of this problem, social scienti...

Milimeter Wave (mmWave) is a solution to overcome of frequency limitations in 5G technology implementations using high frequency carrier domain. This research discusses about mmWave frequency selection for 5G technology using empirical methods for indoor propagation model. Several mmWave frequencies are simulated on indoor office environment. Based on simulation with Indoor Hotspot (InH) placed...