Is exergy charging efficiency greater than energy charging efficiency?

More Benard Tabu's questions See All

How can I completely do away with stress?

Sometimes, stress just comes even when you do not want. How can it be eliminated, not just managing.

10 November 2018 3,322 13 View

Could any one help me with published papers on off grids and on grid photovoltaic system?

I am tailoring my studies to either off grid or on grid.

10 November 2018 9,321 0 View

How does the concentration of iodide affect the electrical generation of organic solar cells?

I am investigating the electrical performance of Amaranthus leaves used as a Dye in Dye Sensitized Solar Cells

09 October 2018 1,468 3 View

How can the effect of light reflection from the surface of solar concentrator be mitigated while cooking using the concentrator?

While assessing the cooking performance of solar concentrator, too much light was reflected to our eyes which was very inconveniencing

08 September 2018 5,539 3 View

How do you begin a sentence with citation in latex? Like Tabu(2009)....

I am writing my report using textmaker

05 June 2017 1,330 4 View

Where can i get the Differential Scanning Calorimeter to help analyze the thermophysical properties of oils?

I would like to determine, viscosity, thermal conductivity, and thermal expansion of oil. Who can help me with the equipment?

01 January 1970 2,676 2 View

How does the Researchgate score correlate with the quality of the research published?

I am wondering if the Researchgate score is a determinant parameter for describing the quality of the research published.

01 January 1970 5,052 4 View

So then, what are the significance of the Researchgate score?

It's pretty clear that Researchgate score is not an attribute for the quality of the research published, why is it relevant?

01 January 1970 8,874 0 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

Waters 2707 HPLC autosampler problem?

I am using a 2707 waters HPLC device. When I try to inject a sample, it says missing plate or rack. I changed the needle and calibrated its position but I still get the same problem. I even get...

02 March 2021 1,408 1 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

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

Any research papers for extraction of nutrient deprivation on macroalgae? Analysed by HPLC-UV and GC/MS. Possibly from macroalgae genus Rhizoclonium?

I am doing my thesis on the nutrient deprivation on the macroalgae Rhizoclonium sp. I will be analysing the levels over a period of roughly 5 days by HPLC-UV and GC/MS. I will be using seawater as...

28 February 2021 6,477 1 View

How can i resolve the "final solutuin is not converged" error in Comsol for my heat transfer simulation??

I have been trying to simulate heat transfer problem in Comsol 5.5 for long time but it always throw an error stating: "Failed to find a solution. Maximum number of Newton iterations...

28 February 2021 8,626 3 View

How to calculate Ligand-active site distance in a ligand-protein complex from MD simulation?

I have run a MD simulation of a ligand-protein complex in GROMACS using CHARMM forcefield. Reviewer has asked me to calculate Ligand-activesite distance and binding free energy of ligand with...

27 February 2021 4,703 1 View

Exit velocity of natural gas from pressurized tank?

Hi Guys. I'm a mechanical engineer and have a bit trouble, would be very glad if you could help me with my questions. I have a pressurized tank which contains Natural Gas at 200 Bar and 293...

26 February 2021 6,253 3 View

Abandu Jackson

exergy charging efficiency is greater than energy charging efficiency because it uses the principle of energy conservation.

Hitesh Bindra

Exergy charging efficiency is always smaller than energy charging for a practical sensible heat TES system as there is always additional entropy generation in the charging process.

Bambang Sudarmanta

In fact, thermodynamic processes always produce entropy, because in this thermodynamic process, there is occur friction and heat transfer into the atmosphere. During this process there is also a loss of energy so the process is called an irreversible process.