نتایج جستجو برای: cooling

تعداد نتایج: 54410  

Morteza Asade Khalaji Shahin Heidari Zahra Barzegar,

In this research multiple-regression analysis with stepwise selection method was employed for investigating the effectof vertical building envelopes solar radiation (Evr) on cooling energy consumption (E cooling) in residential sector.The high capacity of solar energy in semi-arid climate (Shiraz) can provide a part of buildings required energy. Dependson house orientations in two directions of...

ژورنال: مواد پرانرژی 2013
رضایی, محمدرضا, شیخی نارانی, مجید, صابری مقدم, علی,

Thrust chamber cooling system is an important issue in liquid missile systems. In this paper, two more applicable systems, that is, regenerative and radiation cooling systems are studied. Regenerative cooling systems, which are mostly used in high pressure thrust chambers, are normally in two forms, tubular wall structure and double wall structure. Tubular structure has mostly a square form str...

Journal: :Resuscitation 2010
Moritz Haugk Danica Krizanac Peter Stratil Martin Grassberger Wolfgang Weihs Christoph Testori Thomas Uray Udo M Losert Fritz Sterz

AIM OF THE STUDY The effectiveness and safety of non-invasive surface cooling was compared to invasive endovascular cooling in an animal model. METHODS Eight healthy pigs (29-38 kg) were cooled twice, starting in the first 4 pigs with unique surface cooling pads followed by endovascular cooling. In the second 4 pigs the order was reversed. The goal was to quickly lower pulmonary artery temper...

Journal: :Journal of food protection 2012
Laura Green Brown Danny Ripley Henry Blade Dave Reimann Karen Everstine Dave Nicholas Jessica Egan Nicole Koktavy Daniela N Quilliam

Improper food cooling practices are a significant cause of foodborne illness, yet little is known about restaurant food cooling practices. This study was conducted to examine food cooling practices in restaurants. Specifically, the study assesses the frequency with which restaurants meet U.S. Food and Drug Administration (FDA) recommendations aimed at reducing pathogen proliferation during foo...

ژورنال: انرژی ایران 2018

The application of personalized ventilation systems, particularly in the buildings, is one of the new topics that today presented to it, because of their proper performance in reducing energy consumption and creating better thermal comfort conditions. In the current study, the energy consumption of a personalized cooling system installed in a room, considering the constraint of thermal comfort,...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس 1386

چکیده ندارد.

A new design concept is introduced to control the near-wall integration between the hot-gas boundary layer and the cooling jets in order to enhance the adiabatic film cooling effectiveness of the gas turbine blades. In this new approach, another film cooling port, having a very low blowing ratio, which prevents formation of the counter-rotating vortex pare, is applied just upstream of the main ...

Journal: :Journal of food protection 2015
Donald W Schaffner Laura Green Brown Danny Ripley Dave Reimann Nicole Koktavy Henry Blade David Nicholas

Data collected by the Centers for Disease Control and Prevention (CDC) show that improper cooling practices contributed to more than 500 foodborne illness outbreaks associated with restaurants or delis in the United States between 1998 and 2008. CDC's Environmental Health Specialists Network (EHS-Net) personnel collected data in approximately 50 randomly selected restaurants in nine EHS-Net sit...

2013
Sanjay Kumar Onkar Singh

Aero gas turbine engines have been using mainly film cooling and convection cooling techniques. For operating at high gas temperature amongst different cooling options the transpiration cooling technique has emerged as the most promising technique to improve the gas turbine cycle performance by allowing higher turbine inlet temperatures. This paper investigates the advantages of transpiration c...

2017
Coen C. W. G. Bongers Maria T. E. Hopman Thijs M. H. Eijsvogels

Exercise-induced increases in core body temperature could negative impact performance and may lead to development of heat-related illnesses. The use of cooling techniques prior (pre-cooling), during (per-cooling) or directly after (post-cooling) exercise may limit the increase in core body temperature and therefore improve exercise performance. The aim of the present review is to provide a comp...

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