نتایج جستجو برای: energy consumption buildings network models multi prices

تعداد نتایج: 2610119  

2012
Bore Gowda

Minimization of energy consumption is a critical design requirement for most wireless sensor networks (WSNs) applications. WSNs are composed of small, energy constrained sensor nodes. The random deployment of sensor nodes in many applications requires unattended operation. The primary goal of WSNs is how to collect sensed information in energy efficient way since the energy is limited. The netw...

2016
D. H. C. Chow M. Kelly Huiyang Wang J. Darkwa

At present, China is going through a rapid rate of mass urbanisation, and this poses a number of challenges for the building sector. On one hand, under new directives from the government, new buildings will have stricter energy requirements and existing buildings will also need to lower their rate of energy consumption, on another hand, the lifetime of buildings are now intended to last longer,...

Journal: :CFD Letters 2022

Temperature control is important in energy management of buildings. Air conditioning system contributes a high percentage the total consumption, compressor, which major component system, utilizes up to 90% energy. This can drastically be reduced by varying frequency compressor with respect required indoor temperature, as such, reducing overall usage air system. The combination well-tuned contro...

2011
Mehdi Maasoumy Alessandro Pinto Alberto Sangiovanni-Vincentelli

A hierarchical control architecture for balancing comfort and energy consumption in buildings is presented. The control design is based on a simplified, yet accurate model of the temperature within each room of the building. The model is validated against real measurements. The control architecture comprises a first level that regulates low level quantities such as air flow, and a second level ...

2011
Matteo Zago Andrea Casalegno Renzo Marchesi Fabio Rinaldi

The primary energy consumption in residential buildings is determined by the envelope thermal characteristics, air change, outside climatic data, users’ behaviour and the adopted heating system and its control. The new Italian regulations strongly suggest the installation of centralized boilers in renovated buildings with more than four apartments. This work aims to investigate the differences ...

Journal: :IEICE Transactions 2010
Jeong-Jun Suh Young Yong Kim

In this letter, we discuss a forwarding method for maximizing network lifetime, which combines multi-hop forwarding and direct forwarding with a direct/multi-hop forwarding ratio of each sensor node. The direct forwarding ratio refers to the forwarding amount ratio of sensor nodes’ own data directly towards a sink node in one packet/instance data generation rate. We tackle an optimization probl...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی (نوشیروانی) بابل - دانشکده مهندسی شیمی 1390

دراین پروژه به بررسی مدل سازی خشک کردن مواد غذایی با استفاده از هوای خشک در خشک کن آزمایشگاهی نوع سینی دار پرداخته شده است. برای آنالیز انتقال رطوبت در طی خشک شدن به طریق جابجایی، یک مدل لایه نازک برای انتقال رطوبت، مبتنی بر معادله نفوذ فیک در نظر گفته شده است که شامل انتقال همزمان جرم و انرژی بین فاز جامد و گاز می باشد. پروفایل دما و رطوبت برای سه نوع ماده غذایی شامل سیب زمینی، سیب و موز در طی...

2015
Mario Frei Zoltán Nagy Arno Schlueter

Due to the relatively low construction rate of new buildings in Europe, the energetic performance of the building stock can mainly be improved by retrofitting existing buildings. Current methods to derive and assess retrofit measures require either on-site inspection by an expert consultant and code based approaches, or numerical simulations using a building energy model that needs to be first ...

2017
Delia D'Agostino Barbara Cuniberti Paolo Bertoldi

This data article relates to the research paper Energy consumption and efficiency technology measures in European non-residential buildings (D'Agostino et al., 2017) [1]. The reported data have been collected in the framework of the Green Building Programme that ran from 2006 to 2014. The project has encouraged the adoption of efficiency measures to boost energy savings in European non-resident...

In addition to the building properties effect on energy consumption, it is important to consider occupant’s energy behavior and their interaction with building systems in energy calculations. According to studies, energy retrofit regardless of considering this factor, has a lower effect on reducing the energy consumption. This study investigates the impact of energy retrofit in two (retrofitted...

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