نتایج جستجو برای: thermal and electrical efficiency

تعداد نتایج: 16935622  

Background: Irreversible electroporation (IRE) is a novel tumor ablation technique. IRE is associated with high electrical fields and is often reported in conjunction with thermal damage caused by Joule heating. For good response to surgery it is crucial to produce minimum thermal damage in both tumoral and healthy tissues named Non-Thermal Irreversible Electroporation(NTIRE). Non-thermal irrev...

2012
F. Sarhaddi S. Farahat M. A. Alavi F. Sobhnamayan

In this paper, an attempt has been made to obtain nonsensitive solutions in the multi-objective optimization of a photovoltaic/thermal (PV/T) air collector. The selected objective functions are overall energy efficiency and exergy efficiency. Improved thermal, electrical and exergy models are used to calculate the thermal and electrical parameters, overall energy efficiency, exergy components a...

2015
Daniel J. Farrell Hassanet Sodabanlu Yunpeng Wang Masakazu Sugiyama Yoshitaka Okada

The direct conversion of solar energy to electricity can be broadly separated into two main categories: photovoltaics and thermal photovoltaics, where the former utilizes gradients in electrical potential and the latter thermal gradients. Conventional thermal photovoltaics has a high theoretical efficiency limit (84%) but in practice cannot be easily miniaturized and is limited by the engineeri...

In this study, a micro-CHP system using a gas internal combustion engine with a maximum power of 5 kW of thermal and electricity energy has been designed and fabricated. This system will be able to resolve the consumption of heat and electrical energy for single households. The operation of micro CHP system results indicated that the efficiency of the system was increased about 70% as compared ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه گیلان - دانشکده فنی و مهندسی 1390

sange siyah dam is located two kilometers down the kabod khani village. the environ of ghorrve city in kurdestan province. this is an clay core dam. in this dam instrumentation is performed in three section and consist of electrical piezometers, total pressure cells, settlement cells and so on. the main objective of instrumentation is to control the behavior of dam body and foundation, end else...

Journal: :محیط شناسی 0
محمد تقی رضائی حریری ریما فیاض

physiologically thermal comfort condition is a limit of temperature and humidity. ,in which thermal control mechanism of human body is in its least activity . thermal comfort conditions not only have impact on sizes of heating and cooling equipment ,but also affects the thickness of insulation, and .energy, consumption of buildings. it is necessary to define thermal comfort condition for differ...

Journal: :تحقیقات موتور 0
مصطفی کوچک m. koochak سید مصطفی میرسلیم s.m. mirsalim علی کشاورز a. keshavarz آیت اله قره قانی a. ghareghani پیمان شرقی p. sharghi

in this paper, the heat balance of an engine was investigated experimentally. the experimental work was conducted on the ef7 natural gas fueled and turbocharged engine. the main goal was to develop an empirical equation to be able to predict the heat balance of the engine at various loads and conditions. the data were collected at four different conditions, two different loads and two different...

2008
Abhishek Ranjan Swapnil Dubey Basant Agarwal G. N. Tiwari

In this communication, an attempt has been made for evaluating the performance of an existing BIPV system for Indian climatic conditions, considering four weather conditions (a, b, c and d type) for five different cities (New Delhi, Bangalore, Mumbai, Srinagar, and Jodhpur) of India. In this paper, first solar radiation is calculated on inclined roof (30), south, east and west facades (90) of t...

One of the most important parameters in designing electrical motors is heat generation by the motor and the way it is dissipated. Temperature rising reduce efficiency and reliability of traction motors and leads to failure. In this paper, an urban train traction motor in a 3D computational fluid dynamics (CFD) simulation has been investigated. Maxwell software for electromagnetic simulation and...

Journal: :journal of particle science & technology 2015
vahid madadi avargani amir rahimi touraj tavakoli gheinani

an experimental and theoretical energy and exergy analysis was conducted for a cylindrical cavity receiver employed in a parabolic dish collector. based on simultaneous energy and exergy analysis, the receiver average wall temperature and overall heat transfer coefficient were determined. a simplified nusselt number for heat transfer fluid (htf) through the receiver as a function of reynolds an...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید