How to calculate performance of Evacuated tube solar water heater?

I wants to calculate theoritical performance of Evacuated solar water heater using excel programing. can any body share such programmed file.

27 March 2020 2,818 3 View

How can we purify the crude extracts of animal tissues?

I have crude extracts of an animal tissues in different solvents. How can I purify them before going to check its bio activities??

16 July 2019 5,935 1 View

Can we develop microcontroller based solar radiation measuring device?

I want to develop a Microcontroller based solar radiation measuring device. Can any body guide me?

28 March 2019 1,248 8 View

Which is the international event is going to held in Gujarat state of India?

Global innovative and scientific conference is going to held in Gujarat in India. Can any body aware me about it.

14 January 2019 9,353 4 View

Which type solar thermal collector give better results FPC or ETC?

I am designing solar water heaters using different solar thermal collector. But I want to known your valuable opinions.

07 January 2019 6,818 9 View

Is it possible to use solar energy to provide total energy need of this planet in place of conventional energy?

Now a days photovoltaic is found as a emerging technology to satisfy the needs of whole world energy demands. Other solar thermal technologies also play important role to overcome the need of...

21 December 2018 2,549 21 View

Biasing circuit for varactor/pin diode in reconfigurable antenna?

I need to know abt biasing ckt for varactor and PIN diodes to be used in reconfigurable microstrip filter. I have seen ckt given in datasheet. It seems it is having more inductor and capacitors...

06 December 2018 5,543 5 View

What is the meaning of GOR in solar desalination system?

The performance of desalination is measured by PR and GOR . I wants to know about GOR.

20 October 2018 1,358 1 View

How to calculate no of tubes and pitch of steam condenser?

I m trying to design a steam condenser for solar desalination. The steam is produced from the water of 80 C by reducing the pressure upto 0.06 bar. The cooling water inlet temperature is 20 C .

11 October 2018 2,666 3 View

Is it possible to measure the thickness of solar radiation?

It hard that solar rediation have some Nemo scale or micro scale thichness. Is it true or false? Please give your opinion.

07 October 2018 7,665 13 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What is the most Operating System (OS) which can be INSTALL on Tiny hard devices like Raspberry Pi (RPi) hardware ?

I'm targeting to deploy a mesh network and manually configure MANET routing protocols. I'm preparing scenarios, architectures, and hard devices needed to do that. Are there some step-by-step...

03 March 2021 1,931 5 View

Why should we choose deep learning to machine learning? Why is CNN better for image classification? Can I get Typical Answer?

What Characteristics makes CNN work better?

03 March 2021 1,458 4 View

What are some of the research gaps in machine learning and artificial intelligence in africa?

i would to know some of the research gaps in the artificial intelligence field in most african countries.

03 March 2021 6,145 3 View

Anyone plz suggest relevant topic for research in image processing+Deep learning.?

I have selected brain tumor images ...but now found that already lots of research done n this topic.

03 March 2021 5,774 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View