Supplier of a small test rig: ammonia absorption refrigeration cycle?

22 November 2022 0 8K Report

Hi, I look for a custom made ammonia absorption refrigeration test rig. Small unit, up to 1 kW, electrrically powered. I found lot of similar units, but they are standard models, produced for educational purposes.

Thanks.

Badges
Science topic

More Petar Petrov's questions See All

How are iso-frequency contours plotted?

Let's say we have a standard, regular hexagonal honeycomb with a 3-arm primitive unit cell (something like the figure attached; the figure is only representative and not drawn to scale). The...

07 August 2024 1,937 1 View

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under op microscop?

How can we differentiate between calcite, dolomite, siderite, magnesite and ankerite minerals in carbonatite rocks in thin section under optical microscope?

07 August 2024 2,132 3 View

What are the roles of both Monetry and Fiscal Policy coordination in optimising the Macroeconomic outcomes in the economy ?

These days policy coordination is becoming necesssary on different front. In India also it is the same case. Monetary and Fiscal policy interface is important in order to address the...

30 July 2024 2,104 6 View

Is CFI / TLI = 1 okay in Mplus?

Hi there, I did a CFA to 10 items on 2 latent variables. The model fit is too good and I've never seen it before. CFI / TLI = 1, RMSEA = 0. Is it okay, if everything else was done properly?...

24 July 2024 5,454 7 View

How to prepare alcohol foam with high alcohol content?

Hi everybody, I wonder is there a way to prepare foam from iso-propanol/water mixture? The content of this alcohol should be 70 – 80 w.%. I plan to use silicone-based surfactants, I have several...

15 July 2024 3,539 0 View

Researchers, have you come across any intriguing but underexplored research topics that you would like to share?

Your ideas could spark the next big thesis or dissertation for students eager to make an impact in their field.

14 July 2024 9,999 0 View

How can I extract the mathematical equation from existing Neural Network Model?

There exists a neural network model designed to predict a specific output, detailed in a published article. The model comprises 14 inputs, each normalized with minimum and maximum parameters...

14 July 2024 2,714 3 View

Is it a source for moisture factor in different plants?

Is it a source for moisture factor in different plants? I need to find moisture factor (oven dry weight / wet weight) in plants in different studies.

10 June 2024 842 0 View

How often should I change media for RAW 264.7 cell cytokine analysis?

I am currently working on a study using RAW 264.7 cells. I am polarizing the cells to an M1 phenotype. I am then applying an anti-inflammatory compound 24 hours later. These cultures are being...

09 June 2024 867 1 View

Why am I seeing no color change of the positive control cell death assays?

I am currently running Cell Death ELISAs, using the Roche Cell Death Detection ELISA kit. My samples are from the supernatant of bacterially infected primary canine cells. I am seeing no color...

02 June 2024 8,682 1 View

Is it possible to improve the reforming section of the Haber-Bosch process without using air separation units?

A typical reforming section in a large-scale Haber-Bosch process (Figure 1) comprises two reactors. A mixture of methane (CH4) and steam (H2O) is fed into a primary reformer to produce syngas via...

01 August 2024 7,051 5 View

How to make overlapping p-h diagram in EES?

I want to draw ph diagram using Engineering equation solver EES for refrigerant R134a and R1234fy and some other. I don't know how to draw the multiple ph diagram on same dome or overlapping to...

30 July 2024 647 7 View

Why flow rate of MFC for pure NH3 gas decreases with time?

We have been using MFC to control the flow rate of pure ammonia gas. The MFC is placed in an oven at 50 deg. C to avoid blockage due to NH3. However, after a few days of usage, the MFC is unable...

11 July 2024 5,796 1 View

Which part did I made a mistake?

I'm a postgraduate student and I'm currently researching ammonia nitrogen degradation through photocatalysis. The following experiment parameters are : 1. 200W Xe Lamp 2. 200mL aqueous ammonia...

10 June 2024 2,657 1 View

Why does the aloe vera gel change color from white to pink when placed in the refrigerator?

While when placed in the freezer, it maintains the same original white color?

05 June 2024 5,231 5 View

Correct spectrophotometry absorbance for colored turbid pond water samples?

I'm dealing with this pond water for analysis of chemical parameters such as (ammonia, nitrite, nitrate, phosphate...etc.) using a visible spectrophotometer while I was preparing standard curves...

03 June 2024 6,841 1 View

How to conduct comparative study of refrigerants with one heat pump model as they have different saturation pressure and temperature?

I have modelled a refrigeration system using finned and tube heat exchanger and adopted the tube by tube method. I chose the R134a as a baseline refrigerant and developed the model according to...

30 May 2024 8,152 12 View

Please share the HNMR sample preparation procedure for isotopic labelling test to confirm source of N2 during ENRR to ammonia.?

During electrocatalytic nitrogen reduction to ammonia, we perform isotopic labelling test using HNMR to confirm source of ammonia.

29 May 2024 5,165 0 View

Equation of calculating ammonia nitrogen?

i was determined ammonia nitrogen by phenol hypocholorite method, now i have some data like wieght of sample and absorption level at 630 nm and standard curve and standard equation obtained from...

15 May 2024 2,096 2 View

Why would my comet assay of zebrafish blood have a cloudy appearance?

I did comet assay with goldfish in my master's degree but now I am experiencing such a problem. has anyone encountered such a problem before? the only difference from my other experiments is that...

09 May 2024 6,902 3 View