MIL-HDBK-1003/13A
2.6 Passive Systems ................................................
68
2.7 Solar Cooling Systems ..........................................
74
2.7.1
Absorption Cooling ........................................
74
2.7.2
Bankine Cycle Heat Engine Cooling .........................
76
2.7.3
Desiccant Cooling .........................................
77
2.7.4
Other Cooling Methods .....................................
79
2.7.5
Estimating System Size ....................................
79
2.8 System Controls ................................................
80
2.9 Piping, Pumps, Valves ..........................................
82
2.9.1 Pipe and Header Sizing ....................................
82
2.9.2 Pumps and Collector Flowrate ..............................
83
2.9.3 Valves ....................................................
83
2.10 Other Considerations ..........................................
84
2.10.1
Architectural ............................................
84
2.10.2
Reduction of Heat Losses ................................
84
2.10.3
Maintenance and Accessibility ............................
84
2.10.4
Contract Submittals Required .............................
85
3.0 DESIGN METHODS ...................................................
87
3.1
Job Summary - Worksheet A ......................................
87
3.2
Solar Collector Parameters - Worksheet B .......................
87
3.3
Load Calculations - Worksheet C-1 ..............................
90
3.4
Demand Calculations - DHW - Worksheet C-2 ......................
91
3.5
Monthly Solar Collection Parameters - Worksheet D-1 ............
98
3.6
Fraction of Load Supplied by Solar Heat - Worksheet D-2 ........
98
3.7
Economic Analysis ..............................................
107
3.7.1 Fuel Savings - Worksheet E-1 ..............................
107
3.7.2 Operating and Maintenance (O&M) Costs .....................
109
3.7.3 Present Worth Analysis and Savings Investment Ratio .......
109
3.7.3.1 Present Worth Analysis Using a Discount
Factor - Worksheet E-1 or E-2 ........................
110
3.7.3.2 Present Worth Analysis Without the
Discount Factor - Worksheet E-1 ......................
111
3.8 Collector Temperatures - Worksheet E-1 .........................
111
3.9 Solar System Cost - Worksheet F ................................
115
3.10 Additional Costs - Worksheet G ................................
115
3.11 Sizing the Heat Exchanges for Space Heating ...................
115
3.12 Air-Heating Collector Design - Worksheet H ....................
117
3.13 Worksheets ....................................................
117
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