Mobile Power Units Bryan Davis, Edwin Matute, Justin Hubbard, - - PowerPoint PPT Presentation
Mobile Power Units Bryan Davis, Edwin Matute, Justin Hubbard, Rayhaan Kasliwala Advisor: Dr. Ali Bazzi Sponsor: Hartford Marathon Foundation Team 1710 11/30/2016 1 10/27/2016 Outline 1. Team Objectives 2. Planning & Overall Design 3.
1
10/27/2016
a. Number of Panels b. Solar Panels c. Batteries d. Inverters e. Charge Controllers
2
3
4
Current Environmental Impact: 4 generators * 1 gal/generator = 4 gal/event 4 gal/event * 29 events = 116 gal/year 116 gal/year * 20 Lbs/gal CO2 = 2,320 Lbs/year CO2
5
6
First 2017 HMF event: Sun, March 12 Goal for completion of Installation & Testing/Troubleshooting: Sun, March 12
7
❖ Electrical Loads
➢ Sustain all critical loads.
❖ Weight and Structural Durability
➢ Trailer weight and safety. ➢ Limited roof space.
❖ HMF Event Dates
➢ Compensate for back to back events.
❖ Budget Concerns
➢ ~$5000 + Sponsorship
8
9/19/2016
9
Note: Assuming all loads are running simultaneously for worst case scenario.
10
Note: Assuming all loads are running simultaneously for worst case scenario.
11
Cold Operating Temperatures & Low Solar Irradiance Consecutive Event Days
2016 Event Calendar:
Limited Charging Days
9/19/2016
12
13
Worst Case Scenario: Astronergy Panels
(Panel efficiency) η = 16.2% (Panel Area) A = 1.95 m2 3 batteries @ 170 Ahr x 12V (Battery Energy) E = 6.12 kWh Between 8/25 and 8/29 (Minimum days of charging) N = 2 (August Average Daily Solar Irradiance (GHI)) I = 5.19 kWh/m2/Day
1. (PV Energy Available during charging) EA = N*I*η = 1.682 kWh/m2 2. (PV area required) AR = E / EA = 3.64 m2 3. (Number of Panels needed) NP = AR / A = 1.87 → 2 → 3 panels Resulting Weight = 155.4 lbs Total Cost = $672
14
14
Worst Case Scenario:
(Panel efficiency) η = 16.2% (Panel Area) A = 1.95 m2 2 batteries @ 170 Ahr x 12V (Battery Energy) E = 4.08 kWh Between 8/25 and 8/29 (Minimum days of charging) N = 2 (August Average Daily Solar Irradiance (GHI)) I = 5.19 kWh/m2/Day
1. (PV Energy Available during charging) EA = N*I*η = 1.682 kWh/m2 2. (PV area required) AR = E / EA = 2.43 m2 3. (Number of Panels needed) NP = AR / A = 1.25 → 2 panels Resulting Weight = 103.6 lbs Total Cost = $448
Astronergy Panels
15
16
Solar Panel Power Weight (lbs) Operational Temp Efficiency Size (Length, width, height) Cost SolarWorld SW345 XL Silver Mono 345 W 47.6
17.29% 78.46 x 37.8 x 1.3 in $288.00 per watt ($0.83) Hyundai HiS-M260RG Black Frame, White Backsheet Poly 260 W 37.9
15.9% 64.57 x 39.29 x 1.38 in $220.00 per watt: ($.85)
17
★ Astronergy is the second cheapest panel, while rated at 55W more than its cheaper competitor
Solar Panel Power Weight (lbs) Operational Temp Efficiency Size (Length, width, height) Cost Astronergy ASM6612P- 315 Silver Poly 315 W 51.8
16.2% 77.01 × 39.13 × 1.97 in $224.00 per watt: ($0.71) SolarWorld SW320 XL Silver Mono 320 W 47.6
16.04% 78.46 × 39.4 × 1.3 in $350.00 per watt: ($1.09)
9/19/2016
18
❖
24/48V Batteries are not cost effective (>$1000) and AH rating is more than
procured.
❖
Deepcycle batteries are prefered because of durability and deep discharge.
❖
170AH batteries chosen because of greatest reliability of system. If a battery malfunctions, system still functionable. .
Option
Vdc_in (V)
Amp Hours (Ah) Operating Temperature (°C) Type Weight (lbs) Price Fullriver DC210-12 Battery 12 210
Lead Deepcycle 134 $549 Outback Power EnergyCell 12 220
Lead Deepcycle 132 $640 Outback Power EnergyCell 12 170
Lead Deepcycle 115 $412
19
❖
Assuming 29 Events per Year for One Outback 12V 170AH Battery.
20
❖ How much current do we need on on DC side of inverter?
Loads: Speaker: A = 330W/(.6 * 120V) = 4.58 A Air Blower: A = 2.6 A 3 Lights: A = 240W/(1* 120V) = 2 A Total Amps = 9.18 A
(AC)
Pac = 834W Pdc = 834/.85 = 981W Idc = 981W/12V = 81.76 A Loads: Laptop: A = 400W/(1 * 120V) = 3.33 A Cradlepoint: A = 18W/(1 * 120V)= .15 A 2 Lights: A = 160W/(1 * 120V) = 1.33 A Total Amps = 4.81 A (AC) Pac = 578W Pdc = 578/.85 = 680W Idc = 680W/12V = 56.70 A
20’ Trailer Amperage: 12’ Trailer Amperage:
9/19/2016
21
Option Pout (W) Io_max (A) Price Hard Wire Soft Starter Required 2 Samlex PST-600 1200 10.2 $410 No Yes Samlex PST-1500 1500 12.5 $420 Yes No
PST-600 requires:
inverter isn’t overloaded Thus, PST-1500 is preferable
9/19/2016
22
Option Pout (W) Vdc_in (V) Operating Temp (°C) Efficiency (%) Io_max (A) Iin_max (A) Weight (lbs) Price Hard Wire Exeltech XP600 Series 600 12/24/48
85-87 5.1 70/35/ 18 6.5 $590 Yes Samlex PST-600 600 12/24
85 5.1 160/80 5.9 $205 No
9/19/2016
23
24
25
26
27
❖ Verify articles 690, 250.34, 445 of NEC and DOT regulations ❖ DC components ➢ Select wires, conduits, and connectors ❖ LabView System Monitoring ❖ Design panel frames for roof
28
Astronergy 315W Midnite Classic 150/ Kid DieHard Platinum Outback Power EnergyCell 170AH
29
Outback Power EnergyCell 170AH Samlex PST-1500-12 / PST-600-12
20’ Trailer Costs: Panels - $672 Batteries - $1236 Inverters - $420 Charge Controller - $475 Wall Charger - $60 Total = $2863 12’ Trailer Costs: Panels - $448 Batteries - $824 Inverter - $205 Charge Controller - $290 Total = $1767
Grand Total = $4630
Load Center
9/19/2016
30