Answer / carl_ellis

mmH2O is units of pressure, probably differential pressure in a case involving flow rate.


kg/hr is units of mass flow rate, kilograms per hour.



There is no inherent or implicit relationship between mmH2O and kg/hr. Therefore, there is no conversion between the two.

Differential pressure can be used to measure volumetric flow rate of liquids and gases and an inferred mass flow rate can be calculated for liquids with a known density and gases when there is static pressure and temperature compensation.


But not only do those those measuring conditions need to be met, but DP flow rate is dependent on a specific differential primary flow element and the characteristics of the fluid involved.


That means a measurement in mmH2O pressure drop in a specific design for a liquid differential flow meter could might be converted to a kg/hr mass flow rate (with appropriate static pressure and temperature for gas), but it would be specific only for that application and not transferable to any other application.

Any given DP measurement, say 2000 mmH2O, can represent 1.20Kg/hr in one flow meter and 45,000kg/hr in another flow meter. There is NO inherent relationship. Any correlation is application-specific.

Answer / ktripthi320@gmail.com

10000 mmwc = 1kg/hr

What is open loop checking and close loop checking

1 Answers   BARC, NTPC,

---

WHERE I CAN GET THE TRAINING SMARTPLANT INTOOLS V7 IN INDIA

0 Answers  

---

Drum level tx with GP4 with zero elevation:7300mmh20 on HP and 8050mmh2o on LP as range but on commissioning the tx readiing is max,Why this reading?

0 Answers  

---

Hai friends I have dought for O2 analyser how to working in boiler area. And what is the basic principles

2 Answers   Enmas,

---

Draw bode plot of any transfer function. Why is plotting bode necessary?

0 Answers   L&T, STS,

---

---

god evening sir i am studying m.sc(tech)electronics &instrumention.am i elegible to all industies

0 Answers  

---

what is meant by nuclear power plant?

1 Answers  

---

what are the installation requirement is common to all flow meter when volumetric flow rate is being measured

1 Answers  

---

what is diff b/w neutron and ground?

3 Answers  

---

what is the difference between E/P positioner and I/P positioner in control valve , in which application the respective positioner are used in.

1 Answers   ABB,

---

how to calibrate absolute pressure transmitter

7 Answers   ABB,

---

what is the well head protection system?

1 Answers  

---