نتایج جستجو برای: hot air heating

تعداد نتایج: 328388  

Journal: :journal of food biosciences and technology 0
m. mizani associate professor of the department of food science and technology, science and research branch, islamic azad university, tehran, iran. m. yousefi instructor of the department of food science and technology, science and research branch, islamic azad university, tehran, iran. s. rasouli associate professor of the departement of nanomaterials and nanocoatings, institute for color science and technology (icst), tehran, iran. a. sharifan assistant professor of the department of food science and technology, science and research branch, islamic azad university, tehran, iran. m. bamani moghaddam associate professor of the department of statistics, faculty of mathematical sciences and computer, allameh tabatabai university, tehran, iran.

abstract: mustard is a natural multi-functional additive with strong hot flavor. in this research, powdered yellow mustard (sinapis alba) was heated by 21 different thermal processes, statistically designed by response surface methodology to evaluate the effects of combinations of heating media (hot air, hot water and steam) and heating time (0-20 min) on residual myrosinase activity, the minim...

A. Sharifan M. Bamani Moghaddam M. Mizani M. Yousefi S. Rasouli

ABSTRACT: Mustard is a natural multi-functional additive with strong hot flavor. In this research, powdered yellow mustard (Sinapis alba) was heated by 21 different thermal processes, statistically designed by Response Surface Methodology to evaluate the effects of combinations of heating media (hot air, hot water and steam) and heating time (0-20 min) on residual myrosinase activity, the minim...

2001
S. Wang J. Tang R. P. Cavalieri

Hot air and hot water heating methods have been extensively studied as thermal treatments to control insect pests in fruits to replace chemical fumigation. An inherent difficulty in using these methods is that slow heating rates may result in long treatment times and possible damage to fruit quality. Many factors influence heating time. A systematic analysis of those influences is desirable to ...

2013
Xiaoyu Liu Siu-Kit Lau Haorong Li

A multi-functional heat-pump system is proposed to efficiently utilize the gray water as heat source and sink for heating and cooling of residential buildings, respectively. Heat is reclaimed from the plate heat exchanger installed at the outlet of the compressor to provide sufficient hot water for residential use. To study the performance of this innovative system, laboratory testing is perfor...

A. Nouri,

In this paper the changes in the heat capacity of cooling towers has been investigated as a result of injecting combustion products of boilers. In the tower, the air is re-heated through mixing with hot flue gas after passing through the heat exchangers. As a result of this process, the draft of the cooling tower is increased. The additional produced draft depends on the ambient temperature and...

A. Nouri,

In this paper the changes in the heat capacity of cooling towers has been investigated as a result of injecting combustion products of boilers. In the tower, the air is re-heated through mixing with hot flue gas after passing through the heat exchangers. As a result of this process, the draft of the cooling tower is increased. The additional produced draft depends on the ambient temperature and...

Journal: :روش های عددی در مهندسی (استقلال) 0
علی نوری a. nouri

in this paper the changes in the heat capacity of cooling towers has been investigated as a result of injecting combustion products of boilers. in the tower, the air is re-heated through mixing with hot flue gas after passing through the heat exchangers. as a result of this process, the draft of the cooling tower is increased. the additional produced draft depends on the ambient temperature and...

2014
Grzegorz Czerski

This paper presents investigative results of the energy efficiency of hot water production for sanitary uses by means of gas-fired water heaters with the combustion chamber sealed with respect to the room in single-family houses and multi-story buildings. Additionally, calculations were made of the influence of pre-heating the air for combustion in the chimney and air supply system on the energ...

Journal: :American journal of physiology. Regulatory, integrative and comparative physiology 2015
Jonathan E Wingo David A Low David M Keller Kenichi Kimura Craig G Crandall

The influence of thermoreceptors in human facial skin on thermoeffector responses is equivocal; furthermore, the presence of thermoreceptors in the respiratory tract and their involvement in thermal homeostasis has not been elucidated. This study tested the hypothesis that hot air directed on the face and inhaled during whole body passive heat stress elicits an earlier onset and greater sensiti...

Journal: :journal of computational & applied research in mechanical engineering (jcarme) 2013
m. nasiri b. ghasemi

this paper modeled heating air of a room through examining free convection in a 3d chamber. the chamber had cold and hot sources with tc and th temperatures, respectively. its other walls were adiabatic. this study aimed at predicting effect of temperature difference, displacement of hot and cold sources and their aspect ratio on flow field, temperature and heat transfer rate. to conduct the st...

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