How pumps work


simondspump.com keyword stats



Most current MSN search phrases:

cheap pool pump motor rudd pump
rudd heat pumps lenox heat pumps
CIRCULATING PUMPS FOR TABLE WATER submersable pump 17
Berkley Jet Pump pump sizing
pto irrigation pump Honda Outboard Water Pump Replace

Sizing - Part I - Air Conditioner Sizing

We hear a lot about air conditioner sizing,gymnasium with a lot of intense exercise?the
whenever we make the important choice ofoccupants. It takes a lot to cool a town hall
purchasing, or installing one. What does thefull of people, doesn't it? Oh yes, we
word sizing really mean?Air conditioners aregenerate heat.Square feet method?You might
designed for heat removal, or addition (ifhave heard about the square feet method in
heat pump is included in the single package).air conditioner sizing. In fact, it is used
Therefore, the "size" of an AC, will beoften by many contractors, that we sometimes
specified  in  terms  of  heat  removal,  oruse it arbitrarily. This method have been
generalised, and simplified by contractors,
addition capability.Units that we use forfrom sizing many ACs.The most common
air conditioner sizing, are BTU/hr (Britishrelationship is, "1 ton for every 500 square
Thermal Units per hour), Ton, and Watts. Somefeet of floor area". This method might work
countries utilise one unit, more than thefor a contractor, working in a small area,
others, in air conditioner sizing.It iswith  similar  type  of houses or buildings,
excellent if you can remember the
relationship between BTU/hr, Ton, and Watts.and similar wall material.But, the
You can quickly gauge the AC size, in case ifrelationship will not work, if you change the
your friends use units - that are unfamiliarwall construction type, or if you move into a
to you;1 ton is equivalent to 12,000 BTU/hr.different area, with different climate.
And,12,000 BTU/hr is equivalent to 3,516Simply said, this method of air conditioner
Watts - or 3.516 kW (kilo-Watts).Concept andsizing will only work for a confined group of
fundamental of air conditioner sizingIt isbuilding, in a given area.However, this is
based on heat gain, and/or losses in amethod is reasonably useful for installing
building. It is obvious that you will need towindow, small split, or portable air
remove the amount of heat gain into yourconditioners.Manual JNow, this is the way we
house - if it is hot outside. Similarly,should do air conditioner sizing. Manual J is
you'll need to add in the heat loss from youra database, with methodologies, formulas and
house - if outside temperature is cold.Inguide for sizing and AC. This manual has been
short, heat gain and loss, must be equallydeveloped by ACCA (Air Conditioning
balanced by heat removal, and addition, toContractors of America) - with regular
get the desired room comfort that wereviews.It will provide you with necessary
want.What determines the amount of heatdata for heat gain and heat loss
removal and/or addition that we want?It iscalculations. Wall construction, building
determined by,the temperature differenceorientation, infiltration, shading, number of
between outside temperature, and our desiredoccupants, the temperature you would like to
temperature. It is common sense that if youset, outside temperatures, are among the most
want a cool room, in a very hot climate,important values it will look for, for proper
you'll need to remove a lot of heat. On theair conditioner sizing.This is indeed, an
other hand, it does not take much to maintainextensive manual, which is used by certified
a cool room, on a mild daythe constructionand experienced air conditioning
material, and arrangement of your building.contractors.Manual J is just a tool. The
Let's say, that you have two identicalimportant things are, the values that are put
houses. One is build out of glass, and thein it. If we put in accurate values, then our
other out of brick, and well insulated.Ofresults will be come accurate. Otherwise,
course the one built with glass would requireit's not going to help much.What are amongst
much more heat addition, or removal, comparedthe important information, you should have
to the other - given a same day.Two identicalfor air conditioner sizing using Manual J?
house, with different orientation withThese are,required temperature range within
respect to the direction of sun rise andyour space,approximate temperature
fall, will also influence the air conditionerdistribution within your area, to find out
sizingthe surface area of the walls. Thethe number of months you have winter, summer,
larger the surface area - the more heat thatand mild weathers,wall surface area and
can loose, or gain through it. Hence, effectsmaterial. Window surface area,any tinted
the AC size that you would needinfiltrationwindow? Any insulated space?how many person
plays a part in determining our airis going to live within each space?what are
conditioner sizing. Door gaps, crackedthe activities carried out throughout any
windows, chimneys - are the "doorways" forday? How much cooking? How much of hot water
air to enter from outside, into your livingutilisation?orientation of your building,
space. Only you know how frustrating it canwith respect to the sun's rise and fall
get, to feel a draft of chill, or hot airdirection, and,sources of infiltrationPart II
from outsideactivities and other equipmentor air conditioner sizing is coming soon...
within a building. Cooking? Hot bath? Is it a



1 A B C D E F 89 90 91 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 131 132 133 134 135 136 137 138