Pumps and Fans |
In order to move a mass (solids, liquids or gases) you have to apply an external force (energy). Fluids (gases and liquids) can be made to move from say point-A to point-B by creating... |
Refrigeration |
Cooling uses refrigeration which is accomplished using substances that have very low boiling points. For example Ammonia (NH4) at standard atmospheric temperature (say between 60oF... |
Time Value of Money |
Symbols for Interest Formulas: N Number of time periods (typically years but it could be months) i Interest rate (fixed) over the time period P Present Value ( Worth / Sum /... |
Lighting (NASA) |
Light consists of electro-magnetic waves. It is the segment of the electro-magnetic spectrum of radiant energy that lets us see. All radiant energy consists of electro-magnetic waves... |
Duct Sizing Charts & Tables |
Carrier Air-Conditioning Manual(1960-?) TABLE 6 - CIRCULAR EQUIVALENT DIAMETER,* EQUIVALENT AREA AND DUCT CLASS OF RECTANGULAR DUCTS FOR EQUAL FRICTION TABLE 6 - CIRCULAR... |
Pipe Sizing Charts Tables |
CLOSED SYSTEMS Design Criteria: 3' Frictional Pressure Drop per 100' Pipe Length with a Maximum Velocity of 10 ft/sec Figure - 1 Friction... |
BOILERS |
Syllabus Boilers: Types, Combustion in boilers, Performances evaluation, Analysis of losses, Feed water treatment, Blow down, Energy conservation opportunities. 2.1 Introduction A... |
Centrifugal Chiller - Fundamentals |
NOTICE The information contained within this document represents the opinions and suggestions of McQuay International. Equipment and the application of the equipment and system... |
Facilities Management |
No matter how thorough and forward thinking your energy-model may be, it’s well known that the inhabitants of any building invariably affect its energy usage and savings. We’ve all... |
HEATING AND COOLING SYSTEM UPGRADES |
Overview Heating and cooling systems are the largest single consumers of energy in buildings. These systems condition the air within a building so that occupants are comfortable.... |
HVAC: Centrifugal Chillers |
Does your building have a centrifugal chiller? If it does, you should know that chillers typically consume more electricity than any other single energy-consuming device in a... |
Chiller Plant Design |
Introduction Using chilled water to cool a building or process is efficient and flexible. A two-inch Schedule 40 pipe of chilled water can supply as much comfort cooling as 42"... |
PV Modeling in eQUEST |
I'd like to summarize all the responses and my findings about PV modeling in eQuest. Specially thank Scott Criswell for pointing me to the right directions on this simulation skill.... |
Introduction to Photovoltaic Systems |
HIGHLIGHTS ♦ The energy needs of a typical home in Texas could be met by covering only half of its roof with solar electric panels. ♦ Photovoltaic (PV) cells convert... |
How Solar Electric Technology Works |
Image above shows a residential Grid-Connected Photovoltaic System. 1. solar panels 2. inverter 3. breaker box 4. home power and appliances 5. meter 6. utility power grid. (1)... |
Basic Photovoltaic Principles and Methods |
Notice This publication was prepared under a contract to the United States Government. Neither the United States nor the United States Department of Energy, nor any of their employees... |
Photovoltaic (PV) Tutorial |
This presentation was designed to provide Million Solar Roof partners, and others a background on PV and inverter technology. Many of these slides were produced at the Florida Solar... |
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