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 a. Architectural Alternatives. In the selection of architectural
alternatives, the following are some of the items which should be given
consideration:
(1)
Building orientation
(2)
Building width and length
(3)
Number of building stories
(4)
Exterior wall construction
(5)
Exterior wall insulation
(6)
Roof construction
(7)
Roof insulation
(8)
Window area
(9)
Window glass type such as single glazed, double glazed or
(10)
Solar screening devices
(11)
Modifications to reduce infiltration
(12)
Building aboveground, underground or wells mounded
(13)
Passive solar energy architectural features
(14)
Minimize U-values of building envelope where lower life cycle
costs warrant
(15) Double glazed or other energy efficient windows and frames for
conditioned spaces
b. Mechanical Alternatives. In choosing heating and cooling system
alternatives, the following are some of the items which should be considered:
(1)
Reciprocating centrifugal, rotary screw and absorption chiller
(2)
Natural gas, oil, coal or combination fired boiler
(3)
Use of station steam
(4)
Variable air volume system (low and high velocity)
(5)
Double duct system
(6)
Multizone system
(7)
Terminal reheat system
(8)
Hydronic heat pump system
(9)
Fan coil system (Except in tropical areas with high humidity)
(10)
Total energy system
(11)
Selective energy system
(12)
Double bundled condensers for heat recovery
(13)
Rotary heat exchangers
(14)
Run around cycle
(15)
Outside temperature reset control
(16)
Night and weekend thermostat set back
(17)
Economizer cycle
(18)
Thermal storage
(19)
Solar energy
(20)
Direct Digital Controls for HVAC and building controls
NOTE:
ATTACHMENT B IS BASICALLY A COPY OF ENCLOSURE (1) TO
NAVFACINST 4100.7 OF 7 MARCH 1975.
APPENDIX M
2
Attachment B
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