38 - Dr. Gundry's Diet Evolution by Steven R. Gundry, M.D.

1. "Indeed, whether you realize it or not, your fate is being controlled by a hidden system that runs most of your cellular, hormonal, nervous system and aging processes without your conscious input"
2. " We are what we eat"
3. "We consider any male patient who weighs in at 220 pounds a member of "big boy club"
4. Myth Busting:

Myth: Drink three glasses of milk or the equivalent each day

Reality : Most people are not programmed to drink milk

Myth: Orange Juice is a great source of vitamins

Reality: Drinking any fruit juice is like drinking liquid sugar

Diet in three messages three phases:

1. You don't have to store fat for winter, Phase 1 (6 weeks) detaching phase
2. You are not a threat to future generations, Phase 2 (6 weeks) , restoration phase 
3. Your staying alive ensures your genes future, Phase 3, Permanent way of eating

You can accomplish the first two phases in as little as 90 days and move to a permanent way of eating in phase 3, unlike a diet you leave behind after getting results you were looking for or not . This is possible because new cell replaces 90 % of your existing cells every three months.

37 - Boiler operation Q&A - T # 1 - Boiler Auxiliaries - Posted by Kambiz Ehsani on 5/17/2018

Q: What kind of pump can be used as Boiler feed water pump?
A: Centrifugal pump

Q: Why?
A:

1. A centrifugal pump is capable of delivering steady flow of BFW
2. Supplying the largest quantity of BFW under a given head
3.  Accepting load variation most easily
4. Trouble free and smooth operation 
5. Less floor space is required
6. Less maintenance is required

Q:Suppose both steam and electricity are available. Which centrifugal pump would you prefer to switch on?

A: Turbo driven

Q: Why?

Steam is cheaper than electricity

Q: The size of ID fan is always large than the FD fan. Why?

A:ID fan is to handle a fluid (flue gas) with higher specific volume than the air handled by the FD fan. Greater specific volume of the gas handled. 

36 - T # 8 - What is Specific Humidity ? - Posted by Kambiz Ehsani - 6/16/2018

The amount of moisture present in the air is expressed in grains of moisture per pound of dry air and referred to as specific humidity. In a pound of water there are 7,000 grains of moisture. Pounds of moisture per pound of dry air could be used to indicate how much moisture is present, but generally , grains of moisture are used because the numbers are larger and easier to work with.

35 - T # 7 - What is relative Humidity ? - Posted by Kambiz Ehsani - 5/16/2018

This is the ratio of the amount of moisture present in the air to the amount it can hold at saturation.

34 - T # 6 - Total heat of Air formula - Posted by Kambiz Ehsani - 5/16/2018

When dealing with changes in both sensible and latent heat such as in heating and humidification or in cooling, use the total heat formula for calculating the heat change in the air which states that:


Total Heat in Btu/hr = Specific Density x 60 min/hr x CFM x Delta H

Total Heat in Btu/hr = 0.075 x 60 x CFM x Delta H

Total Heat in Btu/hr = 4.5 x CFM x Delta H

Delta H = Change in the enthalpy of entering and leaving

33 - T # 5 - Moisture in the air - Post by Kambiz Ehsani - 5/16/2018

Moisture is always present in the air and has a heat content of its own called Latent Heat.
The latent heat of water vapor added to the sensible heat of dry air gives us the total heat of the quantity of air.
We use a Wet Bulb thermometer to measure enthalpy.

32 - T # 4 - Air Sensible Heat Formula - Posted by Kambiz Ehsani - 5/16/2018

Sensible Heat of Air = Btu/hr = Sp. Heat x Sp. Gravity  x 60 Min/Hr x CFM x Delta T

Sensible Heat of Air =  0.24 x 0.075 x 60 x CFM x Delta T

Sensible Heat of Air =  1.08 x CFM x Delta T

Temperature readings are Dry Bulb

31 - T # 3 - Air Properties - Posted by Kambiz Ehsani - 5/16/2018

What is specific heat of air?

Looking at the ability of air to get hot. It is measured in the amount of heat in Btu's required to raise one (1) pound of a substance one (1) degree F. Standard air has a specific heat of 0.24 Btu's per pound per degree F.

30 - Air Properties - T # 2 - Posted by Kambiz Ehsani - 5/16/2018

As Air is heated, It expands. the specific volume would increase and the Specific density would decrease. At higher temperatures, air weighs less per cubic foot of volumes. This is why warm air rises. Example is the balloons that go up with passengers.

29 - Fundamentals - Posted by Kambiz Ehsani - 5/15/2018

How much pressure is a column of water 1 foot high exerting at the base of this column?

Solution:
The answer is 0.433 psi. So 119 psi pressure is equal to 119 / 0.433 = 275 feet

28 - Air Properties T #1 - Posted by Kambiz Ehsani - 5/15/2018

1. Air is a mixture of many gasses and is classified as either Dry or Moist air
2. Dry air contains approx. 78% nitrogen , 20.9% Oxygen, 1% Argon and other gasses (1% other gasses
3. Moist air is a mixture of dry air and water vapor. The amount of moisture present in the mixture may vary from zero to all that air can hold, called its saturation point.
4. If dry air and water vapor were mixed together in a container, the pressure of this mixture is the summation of the pressure exerted by each of the two gasses. This is known as Dalton's Law.
5. Dry air is a gas and follow the gas laws of Charles and Boyle. This gas law states that if air were heated and maintained at a constant pressure, the air would expand and weigh less per cubic foot of volume.This property of air is known as specific density.
6. At sea level, the pressure exerted on the surface of the mercury of 70 degree dry air is 14.696 psi absolute. This will maintain a level of mercury in the tube at 29.92 inches.
7. Specific Density equals one over the specific volume. Or, Specific volume equals one over the specific density. For example, the specific volume of standard air is 13.33 cubic feet per pound, so its density will be one over 13.33 or 0.075 lb per cubic foot.  

27 - Health recommendation pick for the week - Benefits of antioxidants - Posted by Kambiz Ehsani - 5/13/2018

Benefits of antioxidants:

https://www.webmd.com/food-recipes/antioxidants-your-immune-system-super-foods-optimal-health