How we can operate a heater to a required temperature using PID Controller?

I am using LabVIEW and NI DAQ cards. I am operating a heater using PID controller in LabVIEW. How can I tune the value of the gains so that I can get an excellent response from the heater? By...

07 August 2016 6,358 10 View

How to calculate or determine heat transfer coefficient?

07 August 2016 3,897 2 View

Heat Transfer Calculations and Modeling

How can we decide which geometry would have faster heat transfer rate while working in negative temperature if we are using copper and the mode of heat transfer is pure conduction? Also if the...

06 July 2016 1,312 6 View

Dry Ice Bath?

05 June 2016 7,365 1 View

How to store dry ice ?

I want to store dry ice for at least one to two weeks. What will be the most economical way to store it for at least one week.

31 December 2015 6,950 3 View

What are the safety issues assocaited with dry ice?

I am working on dry ice and ethanol mixture ( Ice-bath). What are the safety issues and precautionary steps that must be taken. Also what are its environmental hazards.

09 October 2015 2,089 1 View

What is the sublimation rate of dry ice at room temperature?

What is the sublimation rate of dry ice at room temperature, and how can we calculate the volume or mass of dry ice for achieving specific temperature?

03 April 2015 4,873 5 View

How can I use dry Ice as a coolant with controlled flow?

I want to use dry ice as a coolant , how can i use it so that its flow can also be controlled in order to get the desired temperature.

01 February 2015 4,581 1 View

IV Characterization of Solar cell?

What is meant by IV characterization of solar cell. Are there different ways to carry out this or it can be carried out through the same way.

10 November 2014 1,038 1 View

Handling and safety issues of liquid nitrogen

08 September 2014 7,583 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Which is the most convenient manufacturing software for Additive Manufacturing?

Which tools can be used to generate machine codes for additive manufacturing?

02 March 2021 7,220 2 View

How to separate water from glycerol solvent in a solvent recovery vacuum distillation column?

I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...

01 March 2021 9,525 4 View

No title

Does anyone have the experience of using Taq Man probes in the QIAGEN Rotar- Gene qPCR machine?

01 March 2021 5,311 1 View

Does different dilution factors affect negatively on NH3 reading ?

I have a sample of treated water sample & asked to obtain ammonia conc. in sample using a machine with 5-25 ppm detection range. However, upon testing with different dilution factors, all...

27 February 2021 8,483 3 View

How to measure angle between laser travel path and machine axis in Laser Measurement system?

25 February 2021 1,987 3 View

How can we add reinforced thermoplastics with granules in injection molding machine?

I need to make an injection molding machine in which short fibers are to be introduced. Short fiber length and material properties are to be determined and also the material strength are to be...

22 February 2021 4,290 1 View

Why is my qPCR suddently not working?

I've been working with qPCR for some months now. I amplify 2 genes (PSEN2 and HN1), and the protocols are optimized for both and have been working fine. The other day I amplified HN1 for some...

21 February 2021 3,437 3 View

Small displacement measurement in vacuum?

Hello, I have a question. there is a circular thin foil which vibrates in vacuum, the foil restricted and moves up and down. it is like a diaphragm between two pipes . both sides are in vacuum but...

18 February 2021 8,075 3 View

Drop weight impact testing machine for composites?

Dear all, I hope everyone is safe and healthy I do have a question please. Where can I find a drop-weight impact testing machine to test fiber reinforced polymer composite plates (CFRP and GFRP)...

17 February 2021 3,820 3 View