Wind Rose Allentown, PA
SUN PATH DIAGRAM Allentown, PA
C.1
Rapoport Residence
Climate Data
1742 Penns Crossing Allentown, PA 18104
Daniel Rapoport: 48-315 Envionment I
Coniferous Coniferous
S.1
Rapoport Residence
Site plan with vegetation
1742 Penns Crossing Allentown, PA 18104
Daniel Rapoport: 48-315 Envionment I
deciduous
Coniferous
50’
deciduous
S.3
deciduous
S.2
Analysis
During the winter, the Living room, Foyer and garage receive sun at 9 am, while the dining Room, Kitchen and Family Room are darkest. This is almost optimal; with the exception of the kitchen, all rooms important to morning routines are lit. At noon, almost no rooms are lit well with the exception of the living room. However, no-one is home at noon, so this is not a problem. At 3pm the Dining Room, Kitchen, Family and Laundry rooms are all well-lit while the Living Room, Office, and Garage are not. This is optimal because family members return home from school or work after 3pm and need light in the Dining Room, Kitchen , Family and Laundry Rooms.
LW.1s
12pm 9am
3pm
Family Room
Garage
Laundry Room
Office
Restroom
Foyer Kitchen
Dining Room
Living Room
Rapoport Residence
Summer shadows
1742 Penns Crossing Allentown, PA 18104
Daniel Rapoport: 48-315 Envionment I
Analysis
9am
Overall, the winter analysis is very coals to the summer analysis. All the same rooms receive sun at the same times of day, but the sun is lower in the sky and thus less intense. Summer light is much stronger and therefore warmer. Nevertheless, all rooms generally receive sun when it is beneficial (except at noon, when almost no sun is perceivable from indoors).
LW.1w
12pm
Rapoport Residence
Winter shadows
1742 Penns Crossing Allentown, PA 18104
Daniel Rapoport: 48-315 Envionment I
3pm
Analysis
50’
Because the site is oriented with a south-east dominated slope, all water moves around the house in the manner illustrated here. The topography and current swale already works well to divert water away from the house.
D.1
Rapoport Residence
DRAINAGE PLAN
1742 Penns Crossing Allentown, PA 18104
Daniel Rapoport: 48-315 Envionment I
P.1
Rapoport Residence
PERSPECTIVE: SOUTH AND EAST FACADES
1742 Penns Crossing Allentown, PA 18104
Daniel Rapoport: 48-315 Envionment I
Environmental Programming Circle Your Organizational Priority; identify Liabilities 2
3
4
3
1
2
1 4
Number Your Climate Priorities
Space Title
Living Room
Dining Room Family Room Kitchen
Bedroom 1 Bedroom 2 Bedroom 3 Master Bedroom
SquareFoot Range 279.5
225.75
Living, Circ, Support?
Time in Use special occasions only
1
0.8
(S) Hilled View
Support
special occasions only
3
0.8
(S) Hilled View
180.75 311.23
Check All Preferred Orientations SW
S
SE
E
NE
9’ 9’
N
NW
W
Space Priority 1, 2, 3 2 2 1
4 hrs
3
0.8
Fireplace
10’
Living
4 hrs
4-5
0.8
Stove Oven
9’
Living
12 hrs
1-2
0.6
(E) Hilled View Eastern Sun
9’
1
Living
12 hrs
1
0.6
Farm View Western Sun
9’
1
Living
12 hrs
1
0.6
Farm View Western Sun
9’
1
Living
9 hrs
2
0.6
(E) Hilled View Eastern Sun
9’
1
Support
4 hrs
1
0.8
Hilled View
9’
173.25
S.1
Htg Clg Vent
Living
163.85
203
CLO 0-5
Env. Interests: Views/Access
Living
352.5
411
#People MET 1-5
Internal Loads L/M/H
Rapoport Residence
environmental programming
1742 Penns Crossing Allentown, PA 18104
Daniel Rapoport: 48-315 Envionment I
2
2
S.2 Daniel Rapoport: 48315 Envionment I
sOLAR WINDOW 1
1742 Penns Crossing Allentown, PA 18104
Rapoport Residence
S.3 Daniel Rapoport: 48315 Envionment I
sOLAR WINDOW 2
1742 Penns Crossing Allentown, PA 18104
Rapoport Residence
Daniel Rapoport: 48315 Envionment I
sOLAR Anaylsis
Rapoport Residence
1742 Penns Crossing Allentown, PA 18104
S.4
Analysis I would not recommend a redesign of the house. During the Summer and Winter, we rarely use the A/C and heating respectively. The heat from the kitchen dissipates through the rest of the house due to its central location, and all rooms receive sun when needed, for the most part, year round. The wind comes strongly from the West year-round. Thus, the garage and attic crawl spaces are located on the Northeast and effectively block most wind. What is not blocked is broken up by strategically placed trees. Although the shadows of the neighboring houses and the line of trees that separate the house from the farmland behind it come close, they never actually reach the house. Only in Winter after 3pm does the shadow of the large line of trees come into contact with the house itself. On average, the house is very comfortable and solar orientation, heating, and views are not a problem. The skylights in the Kitchen and upstairs master bathroom (at a 25 degree angle from horizontal, facing the southwest) capture sun nicely during the winter and avoid it during the summer. The house rests atop a hill and thus has an excellent view of the entire Lehigh Valley on the Northeast, Southwest and Southwest sides. All rooms face these orientations already; the master bedroom faces Southwest, Bedroom 1 faces Southwest, and bedroom 2 is the exception. While Bedroom 2 does not have a view of the valley, it has a beautiful view of the farmland behind the property. Although the house is a cookie-cutter, the contractors and architects who designed it seemingly knew what they were doing (or perhaps got lucky) from an orientation standpoint, at least.
W-1: Interior to Exterior Wall With Aluminum Siding
W-2: Interior to Garage Wall
Inside Air Film
Inside Air Film
Inside Air Film
5/8” Gypsum Board
5/8” Gypsum Board
5/8” Gypsum Board
Fiberglass Batt Insulation
Fiberglass Batt Insulation
1/2” OSB Sheathing Tyvek House Wrap
5/8” Gypsum Board
Fiberglass Batt Insulation 1/2” OSB Sheathing Tyvek House Wrap 1” Air Pocket
Outside Air Film
Hollow Aluminum Siding Outside Air Film
1 2 3 4 5 6 7
Inside Air Film 5/8” Gypsum Board Fiberglass Batt Insulation 2x6 Stud 1/2” OSB Sheathing Hollow Aluminum Siding Outside Air Film Rt Average R Value Average U Value
EC.1
At Cavity 0.68 0.56 13.00
At Joist 0.68 0.56
0.63 0.61 0.17
7.50 0.63 0.61 0.17
15.65
10.15
W-3: Interior to Exterior Wall With Brick Facing
8”x 4” Face Brick Outside Air Film
1 2 3 4 5 6
Inside Air Film 5/8” Gypsum Board Fiberglass Batt Insulation 2x6 Stud 5/8” Gypsum Board Outside Air Film
14.83 0.067
Rt
At Cavity 0.68 0.56 13.00
At Joist 0.68 0.56
0.68 0.61
7.50 0.68 0.61
15.53
10.03
Average R Value Average U Value
1 2 3 4 5 6 6 8
14.71 0.068
Rapoport Residence
Wall section - no. 1, 2, 3
1742 Penns Crossing Allentown, PA 18104
Scale: 2 “ = 1’ Daniel Rapoport: 48-315 Envionment I
Inside Air Film 5/8” Gypsum Board Fiberglass Batt Insulation 2x6 Stud 1/2” OSB Sheathing 1” Air Pocket 8”x 4” Face Brick Outside Air Film Rt Average R Value Average U Value
At Cavity 0.68 0.56 13.00
At Joist 1 2
0.63 1.00 0.44 0.17
7.50 0.63 1.00 0.44 0.17
16.48
10.98 15.93 0.063
W-4: Heated Basement to Exterior Wall With Aluminum Siding
W-5: Heated Basement to Soil Wall
Inside Air Film
Inside Air Film
5/8” Gypsum Board Fiberglass Batt Insulation
5/8” Gypsum Board
8” Thick Concrete Foundation
Fiberglass Batt Insulation
1/2” OSB Sheathing Tyvek House Wrap
8” Thick Concrete Foundation Soil
Hollow Aluminum Siding Outside Air Film
1 2 3 4 5 6 7 8
Inside Air Film 5/8” Gypsum Board Fiberglass Batt Insulation 2x6 Stud 8” Thick Concrete 1/2” OSB Sheathing Hollow Aluminum Siding Outside Air Film Rt Average R Value Average U Value
EC.2
At Cavity 0.68 0.56 13.00
At Joist 0.68 0.56
0.08 0.63 0.61 0.17
7.50 0.08 0.63 0.61 0.17
15.73
10.23
1 2 3 4 5
Inside Air Film 5/8” Gypsum Board Fiberglass Batt Insulation 2x6 Stud 8” Thick Concrete
Rt
14.91 0.067
Average R Value Average U Value
Rapoport Residence
Wall section - no. 4, 5
1742 Penns Crossing Allentown, PA 18104
Scale: 2 “ = 1’ Daniel Rapoport: 48-315 Envionment I
At Cavity 0.68 0.56 13.00
At Joist 0.68 0.56
0.08
7.50 0.08
14.32
8.82 13.50 0.074
C-1: Ceiling to unheated Attic Outside Air Film 2”x 8” Ceiling Joist 6 1/2” Fiberglass Batt Insulation 1/2” OSB Sheathing 5/8” Gypsum Board Inside Air Film
1 2 3 4 5 6
Inside Air Film 2”x8” Ceiling Joist Fiberglass Batt Insulation 1/2’” OSB Sheathing 5/8” Gypsum Board Inside Air Film Rt Average R Value Average U Value
EC.3
Rapoport Residence
Rood Section
1742 Penns Crossing Allentown, PA 18104
Scale: 2 “ = 1’ Daniel Rapoport: 48-315 Envionment I
At Cavity 0.17
At Joist 0.17 9.38
19.00 0.63 0.56 0.68
0.63 0.56 0.68
21.00
11.4 19.6 0.05
C-1: Basement Floor to to Soil
Carpet Extruded Polyeurothane Poured Concrete
EC.4
Rapoport Residence
Floor Section - no. 1
1742 Penns Crossing Allentown, PA 18104
Scale: 2 “ = 1’ Daniel Rapoport: 48-315 Envionment I
TABLE A SIMPLIFIED CALCULATION OF BUILDING HEAT LOSS COEFFICIENTS PEAK AND ANNUAL LOAD detail #
U-value
total area
Heat loss Coefficient
Btu/hrft2°F
ft2
UA=Btu/hr°F
W-1
0.067
1,636.1
109.6
W-2
0.068
743.7
50.6
W-3
0.063
714.0
45.0
W-4
0.067
1,595.1
106.9
WINDOWS
Andersen – Narrow line Double-hung
0.30
353.6
106.1
DOORS
Therma-Tru – Steel Clad Exterior Doors
0.16
185
29.6
ROOFS
C-1
0.1
2063.9
206.4
modified U
ft2
WALLS
BELOW GRADE FLOORS F- 1 W-5
1944.3 perimeter ft.
0.032
205.5
38.9 6.6
1,010.2
TOTAL HEAT LOSS COEFFICIENT (total UA) Btu/hr°F
1,709.9
100%
HEAT LOSS SOURCE
UA HEAT LOSS Btu/hr/°F
%
Transmission Losses: Walls
..................................
318.7
18.7
Window s
..................................
106.1
6.2
Doors
..................................
29.6
1.7
Ceilings
..................................
206.4
12.1
Floors
..................................
38.9
2.3
Infiltration Losses
..................................
1,010.2
59.1
PEAK HEAT LOSS (BTUh)
T.A
0.020 total F
INFILTRATION (heated volume of the building x number of air changes x the heat capacity of air .018 Btu ft3°F #A.C. x .018 x volume cu.ft. = heat loss coefficient 1.00 x .018 x 56,123.5 =
Daniel Rapoport: 48315 Envionment I
TABLE A: HEAT LOSS CALCULATIONS
1742 Penns Crossing Allentown, PA 18104
Rapoport Residence
BELOW GRADE WALLS
111,143.5 BTUh ANNUAL HEAT LOSS (MMBTU) 236.5 MMBTU Building Energy Performance
= total UA
x
T (design indoor°F - design outdoor°F)
= 1,709.9
x
65
= total UA
x
24hrs
x
annual degree days
= 1,709.9
x
24hrs
x
5763 BEPS BTU/sqft
Annual Loss
/ Sq.ft heated
=
236,499,688.8
/ 5,657.4
=
x
.00315 US/metric
41,803.6 BTU/sqft =
131.7 kWh/m 2
Walls, 16.7% Windows, 5.4% Doors, 1.5% Ceilings, 10.5%
Daniel Rapoport: 48-
Floors, 2.0%
T.A1
315 Envionment I
TABLE A1: HEAT LOSS Percentages
1742 Penns Crossing Allentown, PA 18104
Rapoport Residence
Infiltration Losses, 64.0%
18.7%
6.7%
1.2%
12.1%
2.3%
59.9%
Walls
Windows
Doors
Ceilings
Floors
Infiltration Losses
C1
Attic 1
Master BATH
Master Bedroom
W1 W3 Kitchen
W5
Bath
Office
Basement
F1
A.1
Rapoport Residence
INTERIOR TO EXTERIOR CONDITIONS DEFINED
1742 Penns Crossing Allentown, PA 18104
Scale: 1/32 “ = 1’ Daniel Rapoport: 48-315 Envionment I
Attic 1
Attic 2
W2
Walk-In Closet
Master Bedroom
Mezzanine
C1
Bath
W1
Garage
W5
Storage/Boiler
A.2
Laundry
BATH
Basement
Foyer
Living Room
BATH
Basement
Rapoport Residence
INTERIOR TO EXTERIOR CONDITIONS DEFINED
1742 Penns Crossing Allentown, PA 18104
Scale: 1/32 “ = 1’ Daniel Rapoport: 48-315 Envionment I
W4
1
Heating: Building Load Coefficient 1. UA total for house 1,709.5 BTU/h oF x 24 = building load coefficient 41,937.6 BTU/day oF (could vary per month if storm windows, night insulation, or zoning is used) 2. DD base 65oF. 3. Heating fuel type: ELECTRIC (FURNACE) 3B. heating system efficiency 300% 4. $ 13.21mmbtu (convert from $0.106 kwh if needed) total mmbtu from the bills divided by the $ charged), note total costs in 4. may be less than bills if gas is used for DHW, cooking and drying (add all of those columns = bill). 1. BLC = 24 UA/ DD
2. mo, HDD (base 65o)
3. Htg. Load BTU x 106 (1. X 2.)
divide by sys. effic. (eg. .85 = 85%)
3B. Htg. System Demand (BTU x 106)
Total Heating Cost
4. cost/ mmbtu
Jan
41,801.1
x
1153
=
48.2
3
16.1
x
13.21
=
212.23
Feb
41,801.1
x
1127
=
47.1
3
15.7
x
13.21
=
207.44
Mar
41,801.1
x
1041
=
43.5
3
14.5
x
13.21
=
191.61
Apr
41,801.1
x
593
=
24.8
3
8.3
x
13.21
=
109.15
May
41,801.1
x
359
=
15.0
3
5.0
x
13.21
=
66.08
June
41,801.1
x
139
=
5.8
3
1.9
x
13.21
=
25.58
July
41,801.1
x
21
=
0.9
3
0.3
x
13.21
=
3.87
Aug
41,801.1
x
0
=
0.0
3
0.0
x
13.21
=
0.00
Sept
41,801.1
x
9
=
0.4
3
0.1
x
13.21
=
1.66
Oct
41,801.1
x
212
=
8.9
3
3.0
x
13.21
=
39.02
Nov
41,801.1
x
447
=
18.7
3
6.2
x
13.21
=
82.28
Dec
41,801.1
x
662
=
27.7
3
9.2
x
13.21
=
121.85
5,763
240.9
80.3
$1,060.76
Total HDD
Heating Load
System Demand
Heating Cost
(mmbtu)
(mmbtu)
What is the Btu/ SqFt? 64,038.3 mmbtu/sqft What is the Btu/ SqFt-HDD heating value? 11.12 medium usage existing homes: 11 Btu/ SqFt-HDD mmbtu/sqft-hdd
TC.1
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy calculations: Heating Daniel Rapoport: 48-315 Envionment I
General Information Gallons of hot water 2.870/month DHW Fuel type: ELECTRIC if Electric: 5. kwh/mo= gallons x .2 kwh/gallons 6. cost/kwh = $0.106
5. DHW Load Kwh
x $/Kwh
Total Domestic Hot Water Cost
Jan
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Feb
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Mar
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Apr
2,358 x 0.2 = 471.6 kwh
x .106
May
2,358 x 0.2 = 471.6 kwh
June
Activity
Gallons per use
Clothes Washing
32
Times per month x
15
Total =
480
Showering
20
x
80
=
1600
Bathing
20
x
1
=
20
49.99
Automatic Dishwashing
12
x
15
=
180
x .106
49.99
Preparing Food
5
x
10
=
50
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Hand Dishwashing
4
x
7
=
28
July
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Aug
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Sept
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Oct
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Nov
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Dec
2,358 x 0.2 = 471.6 kwh
x .106
49.99
Total
5,659.2 Kwh
$599.88 DHW cost
DHW load
TC.2
2,358
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy calculations: Domestic hot water use Daniel Rapoport: 48-315 Envionment I
General Information 7. Monthly CDD or cooling hours/month (variable by month) Equipment SEER rating: 12 BTU/wh Unit Capacity 35,000 BTUh 8. Monthly cooling system demand in kwh/CDD 2.92 = unit capacity in BTU/hr divided by (SEER in BTU/wh x 1000 wh/kwh) 9. Electricity cost $ 0.106/kwh 7. Monthly CH or CDD
8. Cooling System Demand factor (kwh/CDD)
Monthly Cooling System Demand (kwh)
9. Electricity cost per kwh
Total Cooling Cost per month
Jan
0
x
2.92
=
0
0.106
=
0.00
Feb
0
x
2.92
=
0
0.106
=
0.00
Mar
0
x
2.92
=
0
0.106
=
0.00
Apr
3
x
2.92
=
8.76
0.106
=
0.93
May
32
x
2.92
=
93.44
0.106
=
9.90
June
70
x
2.92
=
204.4
0.106
=
21.67
July
235
x
2.92
=
686.2
0.106
=
72.74
Aug
250
x
2.92
=
730
0.106
=
77.38
Sept
226
x
2.92
=
659.92
0.106
=
69.95
Oct
67
x
2.92
=
195.64
0.106
=
20.74
Nov
0
x
2.92
=
0
0.106
=
0.00
Dec
0
x
2.92
=
0
0.106
=
0.00
TC.3
2578.4
$273.31
Total Cooling Load
Total Cooling Cost
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy calculations: Cooling Daniel Rapoport: 48-315 Envionment I
Lighting energy use 10. (total wh/mo)/1000 = 213.8 total kwh/mo (Oct - May) = 149.3 total kwh/mo (June - Sept.)
11. Electricity cost $ 0.106/kwh 10. Monthly Lighting Load KWh
October - May Quantity in the House
Average Lamp Wattage (w)
Average Hours On per Month (h/mo)
Total (wh/mo)
Monthly Lighting Cost
11. Electricity cost $/kwh
Jan
213.8
x
0.106
=
$22.66
Feb
213.8
x
0.106
=
$22.66
Mar
213.8
x
0.106
=
$22.66
Apr
213.8
x
0.106
=
$22.66
Incandescent Lights
20
x
68
x
93
=
126,480
Compact Fluorescent (CFL)
40
x
23
x
93
=
85,560
Fluorescent Lights
0
x
0
x
0
=
0
May
213.8
x
0.106
=
$22.66
Halogen Lights
4
x
90
x
5
=
1,800
June
149.3
x
0.106
=
$15.82
Other
0
x
0
x
0
=
0
July
149.3
x
0.106
=
$15.82
Aug
149.3
x
0.106
=
$15.82
=
213,840
Sept
149.3
x
0.106
=
$15.82
Oct
213.8
x
0.106
=
$22.66
Nov
213.8
x
0.106
=
$22.66
Dec
213.8
x
0.106
=
$22.66
*(With dimmers reduce the lamp wattage)
June - September Quantity in the House
Average Lamp Wattage (w)
Average Hours On per Month (h/mo)
Total (wh/mo)
Incandescent Lights
20
x
68
x
65
=
88,400
Compact Fluorescent (CFL)
40
x
23
x
65
=
59,800
Fluorescent Lights
0
x
0
x
0
=
0
Halogen Lights
4
x
90
x
3
=
1,080
Other
0
x
0
x
0
=
0
=
149,280
*(With dimmers reduce the lamp wattage)
TC.4
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
2,307.6 KWh
$244.56
Lighting Load
Total Lighting Cost
Energy calculations: Lighting Daniel Rapoport: 48-315 Envionment I
Appliance energy use (wh/mo)
quantity in house
average wattage in use
average hours on/mo
Total
Coffee Maker
1
x
800
x
335
=
268000
Dish Dryer
1
x
3000
x
46.5
=
139500
Washing Machine
1
x
1300
x
23
=
29900
Oven/Stove
1
x
1400
x
15.5
=
21700
Microwave Oven
1
x
750
x
46.5
=
34875
Iron
1
x
1000
x
6
=
6000
Coffee Maker
1
x
800
x
16
=
12800
Computer
4
x
300
x
90
=
108000
Monitor
3
x
300
x
90
=
81000
Toasters
1
x
1100
x
15
=
16500
DVD Player
3
x
50
x
12
=
1800
Projector
1
x
150
x
3
=
450
Jan
783.41
x
0.106
=
$83.04
TV
3
x
300
x
67
=
60300
Feb
783.41
x
0.106
=
$83.04
Router
1
x
22
x
90
=
1980
Mar
783.41
x
0.106
=
$83.04
Printers
3
x
400
x
0.5
=
600
Apr
783.41
x
0.106
=
$83.04
May
783.41
x
0.106
=
$83.04
total
=
783.41 KW
June
783.41
x
0.106
=
$83.04
July
783.41
x
0.106
=
$83.04
Aug
783.41
x
0.106
=
$83.04
Sept
783.41
x
0.106
=
$83.04
12. (total wh/mo)/1000 = 783.41 total kwh/mo 13. Electricity cost $ 0.106/kwh
TC.5
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
12. Monthly Appliance Load (KWh)
Monthly Appiance Cost
13 Electricity cost $/kwh
Oct
783.41
x
0.106
=
$83.04
Nov
783.41
x
0.106
=
$83.04
Dec
783.41
x
0.106
=
$83.04
9,400.9 KWh
$996.49
Appliance Load
Total Appliance Cost
Energy calculations: Appliances Daniel Rapoport: 48-315 Envionment I
Auto energy use Car 1: 2003 Honda Odyssey Car 2: 2006 Subaru Forester
15,714 miles/year / 19.0 mpg = 827.07 gallons X 0.125 mmbtu/gallon = 103.38 mmbtu 14,286 miles/year / 21.5 mpg = 664.45 gallons X 0.125 mmbtu/gallon = 85.06 mmbtu 1,491.52 Total gallons 188.44 Total mmbtu
14. Monthly mmbtu: 188.44 mmbtu/ 12 months = 15.70 mmbtu 15. Average $2.397/gallon / 0.125 mmbtu/gallon = 23.50 $/mmbtu
NOTE: While the Car 1 takes regular gasoline, Car 2 requires premium: thus 2.937 is an average of regular ($2.811) and premium ($3.063) prices.)
14. Monthly Cars MMBTU
15. $/mmbtu
Jan
15.70
x
23.50
=
$368.95
Feb
15.70
x
23.50
=
$368.95
Mar
15.70
x
23.50
=
$368.95
Apr
15.70
x
23.50
=
$368.95
May
15.70
x
23.50
=
$368.95
June
15.70
x
23.50
=
$368.95
July
15.70
x
23.50
=
$368.95
Aug
15.70
x
23.50
=
$368.95
Sept
15.70
x
23.50
=
$368.95
Oct
15.70
x
23.50
=
$368.95
Nov
15.70
x
23.50
=
$368.95
15.70
x
23.50
=
Dec
$368.95
188.4 mmbtu
$4,427.40
Car Load
Total Car Cost
TC.6
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy calculations: Automobiles Daniel Rapoport: 48-315 Envionment I
ELECTRIC
$ Cooling
$ Heating
$ Domestic Hot Water
$ Lighting
$ Appliance
$ Estimated Total
Jan
0
212.23
$22.66
$42.87
83.04
$360.80
Jan
$361.00
Feb
0
207.44
$22.66
$42.87
83.04
$356.01
Feb
$375.18
Mar
0
191.61
$22.66
$42.87
83.04
$340.18
Mar
$355.48
Apr
0.93
109.15
$22.66
$42.87
83.04
$258.65
Apr
$254.93
Actual Electric Bills
May
9.9
66.08
$22.66
$42.87
83.04
$224.55
May
$203.16
June
21.67
25.58
$15.82
$42.87
83.04
$188.98
June
$190.67
July
72.74
3.87
$15.82
$42.87
83.04
$218.34
July
$220.93
Aug
77.38
0
$15.82
$42.87
83.04
$219.11
Aug
$248.18
Sept
69.95
1.66
$15.82
$42.87
83.04
$213.34
Sept
$200.53
Oct
20.74
39.02
$22.66
$42.87
83.04
$208.33
Oct
$166.16
Nov
0
82.28
$22.66
$42.87
83.04
$230.85
Nov
$179.59
Dec
0
121.85
$22.66
$42.87
83.04
$270.42
Dec
$231.76
Total
$273.31
$1,060.77
$244.56
$514.44
$996.48
$3,089.56
Total
$2,987.55
Cooling
Heating
Lighting
Domestic Hot Water
Appliance
Totals
8.8
240.9
7.87
19.31
2.67
279.6
Annual Kwh in mmbtu equivalent
BTU/Ft2 87,500
Annual mmbtu
70,000 Percentage of Total Energy (%)
3.2%
86.2%
2.8%
6.9%
1.0%
100%
42,500 35,000
How does your house compare to US and International energy standards? Annual mmbtu/ft2
TC.7
64,038.3
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
17,500
Energy calculations: TOTALS Daniel Rapoport: 48-315 Envionment I
CURRENT HEATING AND COOLING COSTS PER YEAR: $1,060
With the installation of RiteTemp 7 Day Programmable Thermostat Energy Star Compliant : Setback thermostats riase the point at which air conditioning turns on and lowers the point at which the heat turns on. This saves energy in both the summer and winter and thus saves money. Cost of Thermostats: 2 @ $39.93 = $79.86 Heating
Reduce Heating Set Point to an average of 62ºF: Current@ 65ºF = 240.9 MMBTU Reduced to an average of 62ºF = 230.8 MMBTU
Temperature
Hours
Product
6am-10pm
65
16
1040
10pm-6am
55
8
440 1480
240.9 - 230.8 = 10.1 MMBTU * $13.1 per MMBTU = $132.11 annual savings
8am-11pm
65
15
975
11pm-8am
55
9
495 1470
Current @ 65ºF = 2578.4 kwh Increased to an average of 68ºF = 2464.7 kwh
62.16
0.042
61.74
Cooling
2578.4 kwh - 2428.9 kwh = 149.5 kwh * $0.106 per kwh = $15.85 annual savings
Temperature
Hours
Product
6am-10pm
65
16
1040
10pm-6am
75
8
600 1640
New Set Temp.
0.042
68.88
0.042
69.3
Sat. and Sun. 8am-11pm
65
15
11pm-8am
75
9
975 675 1650
R.1
0.042
Sat. and Sun.
Increase Cooling Set Point to 69ºF:
Total Savings: $147 annually Payback in 6.5 months
New Set Temp.
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy saving measures: Setback thermostat Daniel Rapoport: 48-315 Envionment I
LIGHTING COSTS PER YEAR: $244.56
With the installation all Compact Fluorescent (CFL) bulbs, energy usage and thus cost will decrease significantly. Cost of new wattages October - May Quantity in the House
Average Lamp Wattage (w)
Average Hours On per Month (h/ mo)
Incandescent Lights
0
x
68
x
93
=
0
Compact Fluorescent (CFL)
64
x
23
x
93
=
136,896
Fluorescent Lights
0
x
0
x
0
=
0
Halogen Lights
0
x
90
x
5
=
0
Other
0
x
0
x
0
=
0
new wattage
=
136,896
previous wattage
=
213,840
*(With dimmers reduce the lamp wattage)
June - September Quantity in the House
Average Lamp Wattage (w)
Average Hours On per Month (h/ mo)
Total (wh/mo)
0
x
68
x
65
=
0
Compact Fluorescent (CFL)
64
x
23
x
65
=
95680
Fluorescent Lights
0
x
0
x
0
=
0
Halogen Lights
0
x
90
x
3
=
0
Other
0
x
0
x
R.2
0
=
0
new wattage
=
95,680
previous wattage
=
149,280
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Monthly Lighting Cost
Electricity cost $/kwh
Jan
136.9
x
0.106
=
14.5
Feb
136.9
x
0.106
=
14.5
Mar
136.9
x
0.106
=
14.5
Apr
136.9
x
0.106
=
14.5
May
136.9
x
0.106
=
14.5
June
95.7
x
0.106
=
10.1
July
95.7
x
0.106
=
10.1
Aug
95.7
x
0.106
=
10.1
Sept
95.7
x
0.106
=
10.1
Oct
136.9
x
0.106
=
14.5
Nov
136.9
x
0.106
=
14.5
136.9
x
0.106
=
Dec
1,477.9 KWh
Incandescent Lights
*(With dimmers reduce the lamp wattage)
Monthly Lighting Load KWh
Total (wh/mo)
Lighting Load Cost of 24 CFL bulbs = Resultant Energy Savings = Payback =
14.5 $156.66 Total Lighting Cost
$215.20 $87.97 annually 2.4 years
Energy saving measures: CFL Bulb Usage Daniel Rapoport: 48-315 Envionment I
CURRENT HEATING LOAD COST: $1,060.76
Tightening air-seals on the building will lower the hourly air exchange (ACH) and thus the heating load. Lower Heating Load = Lower heating bills. Infiltration Coefficient, ACH = 1 (1.00 * 0.018 * 56,123.5 ft3): 1010.2 BTU*ft *F Infiltration Coefficient, ACH = 0.4 (0.40 * 0.018 * 56,123.5 ft3): 404.1 BTU*ft *F 3
3
U-Value
Heat Loss Coefficient
W-1
0.067
109.6
W-2
0.068
50.6
W-3
0.063
45.0
W-4
0.067
Andersen -arrow line Double-hung
1. BLC = 24 UA/ DD
2. mo, HDD (base 65o)
3. Htg. Load BTU x 106 (1. X 2.)
divide by sys. effic. (eg. .85 = 85%)
3B. Htg. System Demand (BTU x 106)
Total Heating Cost
4. cost/ mmbtu
Jan
26982.4
x
1153
=
31.1
3
10.4
x
13.21
=
136.99
Feb
26982.4
x
1127
=
30.4
3
10.1
x
13.21
=
133.90
Mar
26982.4
x
1041
=
28.1
3
9.4
x
13.21
=
123.68
106.9
Apr
26982.4
x
593
=
16.0
3
5.3
x
13.21
=
70.46
0.3
106.1
May
26982.4
x
359
=
9.7
3
3.2
x
13.21
=
42.65
Therma-Tru Steel Clad Exterior Doors
0.16
29.6
June
26982.4
x
139
=
3.8
3
1.3
x
13.21
=
16.51
July
26982.4
x
21
=
0.6
3
0.2
x
13.21
=
2.50
C-1
0.1
206.4
Aug
26982.4
x
0
=
0.0
3
0.0
x
13.21
=
0.00
F-1
W-5
0.02
0.032
38.9
6.6
Sept
26982.4
x
9
=
0.2
3
0.1
x
13.21
=
1.07
Oct
26982.4
x
212
=
5.7
3
1.9
x
13.21
=
25.19
Nov
26982.4
x
447
=
12.1
3
4.0
x
13.21
=
53.11
Dec
26982.4
x
662
=
17.9
3
6.0
x
13.21
=
78.65
5,763
404.1 Total UA
1103.7
Peak Heat Loss (BTUh)
71738.2
Annual Heat Loss (MMBTU)
152.7
BEP
26982.4
R.3
Total HDD
155.5 Heating Load (mmbtu)
51.8 System Demand (mmbtu)
$684.72 Heating Cost
Total cost of work (caulking, weatherstripping, infiltration reduction to lower ACH to 0.4 from 1.0) = $320 Savings ($1,060.76 - $684.72) = $376 Payback = 11 months
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy saving measures: Lower A.C.H. Daniel Rapoport: 48-315 Envionment I
CURRENT HEATING LOAD COST: $1,060.76
Adding R-49 Fiberglass BATT ceiling insulation lowers the heating load significantly. Lower Heating Load = Lower heating bills. Previous ceiling Insulation U-Value: 0.1 Improved ceiling Insulation U-Value: 0.02 U-Value
Heat Loss Coefficient
W-1
0.067
109.6
W-2
0.068
50.6
W-3
0.063
45.0
W-4
0.067
Andersen -arrow line Double-hung Therma-Tru Steel Clad Exterior Doors C-1
F-1
W-5
1. BLC = 24 UA/ DD
2. mo, HDD (base 65o)
3. Htg. Load BTU x 106 (1. X 2.)
divide by sys. effic. (eg. .85 = 85%)
3B. Htg. System Demand (BTU x 106)
Total Heating Cost
4. cost/ mmbtu
Jan
37,785.1
x
1153
=
43.6
3
14.5
x
13.21
=
191.84
Feb
37,785.1
x
1127
=
42.6
3
14.2
x
13.21
=
187.51
Mar
37,785.1
x
1041
=
39.3
3
13.1
x
13.21
=
173.20
106.9
Apr
37,785.1
x
593
=
22.4
3
7.5
x
13.21
=
98.66
0.3
106.1
May
37,785.1
x
359
=
13.6
3
4.5
x
13.21
=
59.73
0.16
29.6
June
37,785.1
x
139
=
5.3
3
1.8
x
13.21
=
23.13
July
37,785.1
x
21
=
0.8
3
0.3
x
13.21
=
3.49
0.02
42.1
Aug
37,785.1
x
0
=
0.0
3
0.0
x
13.21
=
0.00
0.02
0.032
38.9
6.6
Sept
37,785.1
x
9
=
0.3
3
0.1
x
13.21
=
1.50
Oct
37,785.1
x
212
=
8.0
3
2.7
x
13.21
=
35.27
Nov
37,785.1
x
447
=
16.9
3
5.6
x
13.21
=
74.37
Dec
37,785.1
x
662
=
25.0
3
8.3
x
13.21
=
110.14
5,763 1010.2 Total UA
1545.5
Peak Heat Loss (BTUh)
100459.4
Annual Heat Loss (MMBTU)
213.8
BEP
37785.1
R.4
Total HDD
217.76 Heating Load (mmbtu)
72.9 System Demand (mmbtu)
Total cost of materials (2063.9 ft2 * $0.40 per sqft) Savings ($1,060.76 - $958.85)
$958.85 Heating Cost
= =
$825.56 $101.91
Payback = 8.1 years
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy saving measures: Ceiling Insulation Daniel Rapoport: 48-315 Envionment I
CURRENT HEATING LOAD COST: $1,060.76
Adding R-30 Fiberglass BATT wall insulation lowers the heating load significantly. Lower Heating Load = Lower heating bills. Previous wall Insulation U-Value: 0.63 - 0.68 Improved ceiling Insulation U-Value: 0.03 U-Value
Heat Loss Coefficient
W-1
0.3
49.1
W-2
0.3
22.3
W-3
0.3
21.4
W-4
0.3
Andersen -arrow line Double-hung
1. BLC = 24 UA/ DD
2. mo, HDD (base 65o)
3. Htg. Load BTU x 106 (1. X 2.)
divide by sys. effic. (eg. .85 = 85%)
3B. Htg. System Demand (BTU x 106)
Total Heating Cost
4. cost/ mmbtu
Jan
37,611.3
x
1153
=
43.4
3
14.5
x
13.21
=
190.95
Feb
37,611.3
x
1127
=
42.4
3
14.1
x
13.21
=
186.65
Mar
37,611.3
x
1041
=
39.2
3
13.1
x
13.21
=
172.41
47.9
Apr
37,611.3
x
593
=
22.3
3
7.4
x
13.21
=
98.21
0.3
106.1
May
37,611.3
x
359
=
13.5
3
4.5
x
13.21
=
59.46
Therma-Tru Steel Clad Exterior Doors
0.16
29.6
June
37,611.3
x
139
=
5.2
3
1.7
x
13.21
=
23.02
July
37,611.3
x
21
=
0.8
3
0.3
x
13.21
=
3.48
C-1
0.02
206.4
Aug
37,611.3
x
0
=
0.0
3
0.0
x
13.21
=
0.00
F-1
W-5
0.02
0.032
38.9
6.6
Sept
37,611.3
x
9
=
0.3
3
0.1
x
13.21
=
1.49
Oct
37,611.3
x
212
=
8.0
3
2.7
x
13.21
=
35.11
Nov
37,611.3
x
447
=
16.8
3
5.6
x
13.21
=
74.03
Dec
37,611.3
x
662
=
24.9
3
8.3
x
13.21
=
109.64
5,763 1010.2 Total UA
1538.4
Peak Heat Loss (BTUh)
99997.4
Annual Heat Loss (MMBTU)
212.8
BEP
37611.3
R.5
Total HDD
216.75 Heating Load (mmbtu)
72.25 System Demand (mmbtu)
Total cost of materials (1,595.1 ft2 * $0.31 per sqft) Savings ($1,060.76 - $954.44)
$954.44 Heating Cost
= =
$1453.56 $106.32
Payback = 13.7 years
Rapoport Residence 1742 Penns Crossing Allentown, PA 18104
Energy saving measures: Wall Insulation Daniel Rapoport: 48-315 Envionment I