Abdul Majeed Khan

22 Questions 56 Answers 0 Followers

Questions related from Abdul Majeed Khan

Can Fresnel lens increase the temperature upto 3000 oC?

I have a Fresnel lens but its both sides are plain i.e.it does not have grooves (Newton Rings). It can increase the temperature upto 100 to 150 oC. I am looking for Fresnel lens with grooves that...

02 December 2018 1,643 3 View

What will be the most effective method to separate ethanol from water?

Please provide me practically viable solution.

03 July 2017 2,280 6 View

Is Fresnel lens with grooves/Newton rings only present in Toshiba TV or any other one?

I am looking for Fresnel lens

05 June 2017 7,973 2 View

Is is possible to convert linear/smooth Fresnel lens to the lens having grooves (Newton rings)?

I have removed Fresnel lens from rear projection TV but it is plane/smooth/without grooves/without Newton rings. It concentrate the solar radiations to some extent. The Fresnel lens with grooves...

30 May 2017 435 3 View

How I can mix the content of the reaction flask without electrical energy?

I am working on the production of biodiesel through solar energy as heat. However, I have to mix the content by electrical energy which is the drawback in my approach. I would like to transfer the...

30 May 2017 4,555 3 View

What is the common use of mylar sheet?

The mylar sheet is reported to be the best reflective sheet can be used to concentrate the solar radiations. Either it can be recycled from the junk?

18 May 2017 8,710 3 View

Does Fresnel lens is present in all projection TV?

What are the main features of projection or rear projection TV?

18 May 2017 7,003 1 View

At what temperature mixture of ethanol and water can be freezed?

We are interested to separate the azeotrope of ethanol and water by freezing. We assume that water will be converted into ice and ethanol remain as liquid at some temperature. Is it possible to...

15 May 2017 2,931 3 View

Out of the following which will give the highest temperature?

Solar reflector, solar refractor, solar diffractor or solar deflector

12 May 2017 4,170 2 View

What will be the difference between the fuels and biochar at these stages of pyrolysis?

The conversion of biomass to fuels at 100 to 250 oC is the first stage of pyrolysis, 300-600 is the medium whereas 600-1000 oC is the final and high temperature pyrolysis.

10 May 2017 6,380 2 View

Have you studied any heterogeneous catalyst for the hydrolysis of carbohydrates for bioethanol production

Please share some related references

10 May 2017 281 3 View

How I can separate the azeotropic mixture of bioethanol and water?

Both water and bioethanol distilled at 90-100 oC and not able to separate out. I will try fractional distillation and desiccants to remove the water. Is there any other effective method to...

09 May 2017 3,125 7 View

How I can separate the azeotropic mixture of water-ethanol-benzene?

Ethanol and benzene have very close BP

09 May 2017 3,411 5 View

How the CO2 can be trapped during the conversion of biomass to biochar?

The pyrolysis of biomass that leads to the production of different fuels also resulted in the emission of CO2 which has an adverse effect on our climate.

08 May 2017 7,372 7 View

What is the active constituent in the clay which is active for biodiesel production?

I think that the clays are inactive because they do not contain active metal oxides.

12 April 2017 831 4 View

How much temperature you have adjusted for dry reforming of biogas?

Have you identified the end product (syngas) and by which instrument and technique?

10 April 2017 6,980 6 View

What are your targeted products?

Plz specify some of them with methodology.

01 April 2017 7,418 1 View

How much H2 you produced, at what temperature and pressure?

Plz provide some basic information

01 January 1970 4,730 5 View

Do you think that the conversion of waste finally to fertilizer is a zero waste approach?

The utilization of any end product as fertilizer also remain on the earth that contribute for pollution and global warming through the release of greenhouse gases. Then how it is zero waste?

01 January 1970 715 14 View

How much biomethane (in %) you have estimated from wastewater? Have you planned to convert it into electrical energy?

Nice to see your outstanding research work.

01 January 1970 7,359 3 View

Could you suggest me the proper system to convert biogas (obtained from garbage/wastewater digestor) to hydrogen by steam reforming?

Currently, I do not have any oven that fulfill the need of high temperature.

01 January 1970 7,553 8 View

Does biodiesel production using wastes and solar energy has a potential to replace petrodiesel?

Which area demand advanced study regarding biodiesel industry?

01 January 1970 1,120 12 View