نتایج جستجو برای: heating

تعداد نتایج: 55104  

ژورنال: انرژی ایران 2020

Residential and commercial sectors are the main consumers of energy. According to available data, these two sectors account for more than one-third of total energy use. Moreover, heating and cooling systems contribute to the major share of energy use in a building. The current research economically evaluates the radio-frequency heating systems for use in residential buildings. A building in Dis...

2012

Energy-savings considerations in manufacturing processes have been drawing a great attention to the designers and manufactures because of the ecological issues, cost-saving pressure, and new environmental legislations. Manufacturing companies have been trying to “produce more with less”, so the improvement of machining and process efficiency for manufacturing is one of the promising solutions. ...

Journal: :علوم و فنون کشت های گلخانه ای 0
داود مؤمنی d. momeni agricultural engineering research institute (aeri), karaj, iran.موسسه تحقیقات فنی و مهندسی کشاورزی، سازمان تحقیقات، آموزش و ترویج کشاورزی، کرج احمد بناکار a. banakar dept. biosyst. eng. tarbiat modares univ., tehran, iran.گروه مهندسی مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران برات قبادیان b. ghobadian dept. biosyst. eng. tarbiat modares univ., tehran, iran.گروه مهندسی مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران سعید مینایی s. minaei dept. biosyst. eng. tarbiat modares univ., tehran, iran.گروه مهندسی مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه تربیت مدرس، تهران

energy consumption is very high in greenhouses mainly due to off-season production. the main source of its energy supply is fossil fuels. due to the disadvantages of fossil fuels consumption and preventive laws in the incoming years, study on reducing consumption and replacing a part of them with renewable energy is essential. in this research, a solar heating system, equipped with a concentrat...

2008
Tetsuo SEKI Takashi MUTOH Ryuhei KUMAZAWA Kenji SAITO Hiroshi KASAHARA Yanping ZHAO Jong-Gu KWAK

Electron heating regime using with radio-frequency waves in the ion cyclotron range of frequencies (ICRF) has been investigated in helical magnetic configuration. Mode-conversion scenario was applied to the LHD plasmas. When the wave frequency is change to be lower than that in the standard ICRF heating (minority ion heating) condition, the resonance layers are moved away to the peripheral regi...

2017
Qingyou Yan Chao Qin

Due to the increase in environmental problems and air pollution during the heating period, it is important to promote clean heating in cold regions, thereby meeting the heating demand in a green manner. In order to allocate resources more effectively and facilitate the consumption of renewable energy, this paper designs an integrated heating system that incorporates geothermal energy into the f...

2017
Yanfeng Liu Tao Li Yaowen Chen Dengjia Wang

Abstract: This paper proposes the application of time and spatial partition heating to a solar water heating system. The heating effect and system performance were analyzed under the continuous and whole space heating and time and spatial partition heating using TRNSYS. The results were validated by comparing with the test results of the demonstration building. Compared to continuous and whole ...

Background and Objectives: Black mulberry is a juicy and dark purple to black fruit with a good balance of sweetness and tartness. This fruit is highly interested due to high quantities of anthocyanins. The bioactive compounds are often present in fruit tissues and should be released. The aim of this study was to extract bioactive compounds of black mulberries and assessment of heating process ...

Background: In embryological culture dishes, there is a temperature decline when they are removed outside incubators. This study aimed at investigating the effects of this temperature decline within a certain time frame, the type of culture dish with or without the use of laminar air flow and whether it is possible to achieve a sufficient thermal control with the use of a heating stage. Materia...

Journal: :DEStech Transactions on Environment, Energy and Earth Sciences 2019

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید