What are the correct correlations for the convective heat transfer coefficient of air-soil and air-cover in Greenhouse?

More Ali Benhmidene's questions See All

Do you prefer passing your summer holiday near the beach or in the mountain ?

In the summer we hope to pass a good time, resting playing some games. Doing sport activity in the goal to reduce the stress of along year of work. We can going to many places to achieve this goal...

05 June 2018 5,962 16 View

How many time do you have as summer holiday ?

Here in our country Tunisia summar holiday start at the first of July and end the first of September. We have two month of summer holiday where we don't teaching in it. However our research...

05 June 2018 8,890 14 View

As a researcher do you using the social network like twiter, Linkedline or facebook?

I'm your free time we can change subject of your reading by using Facebook or/and twiter where we can found new information. We can make some social relationships. It may be a way to reduce stress...

05 June 2018 6,570 20 View

If you aren't in your actual job, in which job do you want working ?

We are a teacher and researcher in different fields. Many person hope if you haven't teacher or researcher. What kind of job do you prefer if you aren't teacher ?

05 June 2018 867 14 View

Do you believe of the lucky in the our life?

Many persons work a lot without achieve their goals. Others person obtained what you want with a easy way. Many person all of the trajet of your life in very good state. However the others have a...

05 June 2018 1,792 29 View

Is it useful for a researcher to publish an article or a chapter ?

If you have to choose between publishing an article in Q1 journal or to participate by a chapter in a book, what do you prefer ? Your view point is useful for me.

05 June 2018 9,970 48 View

Do you think if you have your PhD you can be a good teacher?

Why not separate between teaching and research ?

04 May 2018 1,067 35 View

How can improve the role of RG as area of collaboration?

The RG has many advantageous like it's an area of collaboration between researchers. The indicated collaboration c like exchange an be in many ways like exchange of article, answer and give...

04 May 2018 8,070 8 View

What earn a researcher from his publications?

After publishing his work, researcher earns only the citation. His work can be the start of a new idea or new set up ... with the pass of years researcher don't earn a lot. Why don't find a new...

04 May 2018 8,772 23 View

Do you think that a researcher can give a required effort in class after 60 old years?

As looking of the hard work as researcher or teacher, the progress of the age of researcher can be an obstacle for given a supplement effort after 60 old years, however, some country fixed the age...

04 May 2018 4,584 14 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Irradiation data for JAPAN?

Hi, Could you help me to get the latest (2019, 2020) solar resource data for a particular site in JAPAN? PV GIS and NSRDB data are not in reach to JAPAN, I'm looking for some other database for...

03 March 2021 961 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Help request in CST microwave?

im working now on TPV solar cells and metamaterials and i realy need our help in CST microwave i have a tpv cell simulation and i want to extract particullarly the absorbtion of only the active...

02 March 2021 2,246 2 View

What are the countries most affected by extreme rainfall as a result of climate change?

Increased heat, drought and insect outbreaks, all associated to climate change, have increased wildfires. Decreasing water supplies, declined agricultural yields, health impacts in cities owing to...

01 March 2021 7,168 9 View

Anyone found any research papers on solar furnace design calculations (for solar concentration)?

I am thinking about working on solar furnace with heliostats that concentrate sunlight and heat molten salt, but currently no luck with research. Not a lot of papers based on the subject. (check...

01 March 2021 5,023 5 View

What is recommended for solid domain in ANSYS FLUENT?

Should I mesh the solid domain ? or should I use wall thickness? or Shell conduction? for Heat Transfer between two fluids of a Heat Exchanger. what is recommended?

01 March 2021 9,785 3 View

Heat exchanger with liquid Nitrogen as coolant?

I want to cool Natural Gas from 195 Kelvin to 138 Klevin in a heat exchanger by using liquid nitrogen as the coolant medium. When entering the heat exchanger, the liquid nitrogen will have a...

01 March 2021 6,450 5 View

How to size battery banks?

I am designing a small grid connected solar PV power-plant. As the battery's capacity is specified in Ah and demand in kWh. What is the best way to size the battery bank? I have battery price in...

28 February 2021 1,638 3 View