نتایج جستجو برای: thermal water

تعداد نتایج: 749886  

Journal: :international journal of environmental research 2014
c. cantaluppi a. fasson f. ceccotto a. cianchi s. degetto

the geothermal phenomena in the area nearby the euganean hills (near padua, in italy) areknown and exploited for therapeutic purposes since ancient times, and recently also for aesthetic purposes.this paper presents the first characterization of the radionuclides content in the euganean thermal waters and mud, extended to a great number of spas. in particular the radionuclides content of both t...

2013
Carles M. Rubio Xavier Úbeda Francesc Ferrer

The purpose of this research is to explore the variability on the soil thermal conductivity -after a prescribe fire, and to assess the effects of the ashes on the heat transfer once it’s were incorporated into the soil matrix. Sampling plot was located in the Montgrí Massif (NE of Spain). A set of 42 soil samples between surface and 5 cm depth was collected before and after the fire. To charac...

Journal: :journal of membrane science and research 0
hiren d. raval reverse osmosis discipline, csir-central salt and marine chemicals research institute (csir-csmcri), council of scientific & industrial research (csir), gijubhai badheka marg, bhavnagar- 364 002, (gujarat), india subarna maiti reverse osmosis discipline, csir-central salt and marine chemicals research institute (csir-csmcri), council of scientific & industrial research (csir), gijubhai badheka marg, bhavnagar- 364 002, (gujarat), india

with the increasing installed capacity of desalination, the greenhouse gas emission for generating the required energy to power the desalination plants is also becoming the focus of attention in the world community. domestic reverse osmosis membranes have been very successful technology especially in the developing world to provide safe drinking water. the novel concept of photovoltaic powered ...

Journal: :iranian journal of science and technology transactions of mechanical engineering 2015
y. bakhshan a. hajhosseini

in this study, thermal performance of a cylindrical heat pipe is investigated numerically. three different types of water based nanofluids, namely (al2o3+water), (diamond+water) and (multi-wall carbon nano tube (mwcnt) +water) have been used. the influence of using the simple nanofluids and mwcnt nanofluid on the heat pipe characteristics such as liquid velocity, pressure profile, temperature p...

Journal: :iranian journal of oil and gas science and technology 0
yaser ahmadi m.s. student, department of petroleum engineering, tehran petroleum research center, petroleum university of technology, tehran, iran mehdi hassanbeygi m.s. student, department of petroleum engineering, tehran petroleum research center, petroleum university of technology, tehran, iran riyaz kharrat professor, department of petroleum engineering, tehran petroleum research center, petroleum university of technology, tehran, iran

in many reservoirs, after water flooding, a large volume of oil is still left behind. hot water injection is the most basic type of thermal recovery which increase recovery by improved sweep efficiency and thermal expansion of crude.in the present work, the effects of injection rate and the temperature of the injected water were surveyed by using core flooding apparatus. water flooding was perf...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

Journal: :فصلنامه علمی پژوهشی مهندسی مکانیک جامدات واحد خمینی شهر 0
masoud zadkhast msc student, department of mechanical engineering, najafabad branch, islamic azad university, isfahan, iran davood toghraee assistant professor, department of mechanical engineering, khomeinishahr branch, islamic azad university, isfahan, iran arash karimipour assistant professor, department of mechanical engineering, najafabad branch, islamic azad university, isfahan, iran

this work presents a model for calculating the effective ‎thermal conductivity of nanofluids. the proposed model ‎includes the effects of nanoparticles and thermal conductivity ‎base fluid.we will focus on experimental of the volume ‎concentration parameter and temperature on thermal ‎conductivity, nano-fluid combination and multi-walled ‎carbon nanotubes-oxide / copper-paid deionized water. th...

Journal: :journal of modern processes in manufacturing and production 0
ramin ranjbarzadeh young researchers and elite club, najafabad branch, islamic azad university, najafabad, iran amir homayoon meghdadi department of mechanical engineering, najafabad branch, islamic azad university, isfahan, iran mohammad hojaji department of mechanical engineering, najafabad branch, islamic azad university, isfahan, iran

the abrasion is a significant issue, especially in machining of rigid steels. a functional and suitable approach for enhancing the heat transfer from machining area is using an intermediate fluid with higher heat transfer potential instead of common fluids. the objective of this experimental study is to discuss production, stability and thermal conductivity examination of water/graphene oxide n...

Journal: :international journal of environmental research 0

concentrations of 42 trace elements, including rare earths, in croatian thermal waters wereinvestigated. originating from different parts of croatia, i.e. different types of aquifers, studied thermal watersprovide insight into the range of concentrations of broad spectrum of elements in croatian thermal waters.covering a wide range of temperature (30 - 92 °c), studied thermal waters are general...

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