How knows about unglazed transpired solar collector price?

Dear all I want to know how much 2 meter square of unglazed transpired solar collector without fan price consideration is? Could you help me?

08 September 2016 7,984 4 View

How knows about unglazed transpired solar collector price?

Hello I want to know how much dollar per area unglazed transpired solar collector is? Thank you so much.

06 July 2016 2,420 3 View

Is it possible to store light?

Is it possible in the future some one say " I have one liter of light."? Store light in during the day and use it in during the night. Is it possible? What do you think?

03 April 2016 5,465 0 View

How heat transfer analysis on heat pump evaporator is?

Hi. How heat transfer analysis on heat pump evaporator is? As well as you know evaporation process in heat pump evaporator is in two-phase process. I need some files (pdf, article and etc.) about...

01 February 2016 7,991 2 View

Who can tell me why water shows unusual behavior in its freezing process?

06 July 2015 8,587 2 View

Which part of my MATLAB program is wrong?

04 May 2015 4,553 5 View

Who knows about gas-bubbles energy?

01 February 2015 9,176 6 View

How I can define viscosity as a function of temperature in Fluent?

01 February 2015 7,106 1 View

Is it possible to make perpetual-motion machine by radiative heat transfer?

It is an idea. Suppose two blackbodies with different temperatures are in a black enclosure.

01 February 2015 3,866 5 View

What is the concept of this sentence: Reynolds number is unsuitable for a non-accelerating flow, since density does not play a part?

For a steady flow between a fixed & moving plate as shown in Fig 3-1 velocity distribution is u=(U/2)*(1+(y/h)) and friction coefficient is Cf=1/Re(h). Assumption: Viscosity is constant.

31 December 2014 1,036 2 View

Physics: Why do we describe light by referring to its wavelength, but microwaves and radar pulses by referring to their frequency?

In physics, the description of the properties of light generally refers to its wavelength (nm), while in the range of microwaves and radio waves we refer to the frequency of a signal (e.g. kHz or...

03 March 2021 1,682 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 effect of different colours of light (white, red, yellow, blue etc.) on the rate of photosynthesis? If yes, why?

Light is inevitable for the process of photosynthesis reaction. Naturally sunlight plays the vital role for this process. Light may be of different colours like white, red, yellow, blue etc....

02 March 2021 7,890 2 View

What is the characteristic length to determine the Reynolds number for the scattered turbulent fluid flow?

Dear all, I just saw this example in FB on the difference between laminar flow and turbulent flow. The flow from a pipe hits the sink and scattered. The flow from the pipe is characterized as...

02 March 2021 1,999 5 View

Can we distinguish the type of free fluid inside the pelvic and abdominal cavities whether blood or serous fluid using the ultrasound?

during ultrasound examination of acute abdomen, sometimes we see free fluid , can we know the type of fluid ,whether blood or not , using ultrasound only? if yes , what are the sonographic...

01 March 2021 7,476 4 View

How much pressure we can reduce at the outlet to avoid Reverse Flow?

I am simulating Heat Exchanger. I have tried and tested all the methods to resolve this issue from the internet like refining mesh, improving skewness and orthogonal quality ,extending outlet to...

01 March 2021 6,985 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

In an eye with Tyndall, does each dot correspond to an individual cell?

When you observe the presence of Tyndall in an inflamed eye: Does each of the small floating dots correspond to an individual cell or to an aggregate of cells? Does a conventional slit lamp have...

27 February 2021 6,326 2 View

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I am trying to find how to know the density needed for a pva electrospinning in a 0.6mm neddle, the electrospinning will be from top to bottom and the problem I really have is the solution because...

25 February 2021 2,615 3 View