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Students: Avi Sabbah
Yotam Alfandary
Ariel Avni
Advisors: Gommed Khaled Yonatan Haran Tsachi Shohat
Mechanical Engineering
Solar Decathlon China 2017
:
Heating, ventilation and air conditioning (HVAC)
Designing an HVAC system for an ecological house, for the
‘Solar Decathlon China ‘competition, while reaching the
required comfort conditions.
Considered different environmental conditions, such as-
Temperature, Humidity, Heat sources in every house and
other climatic conditions that affect the comfort zone.
Greywater Treatment System
•
Designing systems for the ‘Solar Decathlon 2017, China’,
Systems will integrate in the ‘Team Israel’ House Design.
•
Greywater treatment capability: 400[L]
Solar Decathlon China 2017
:
Greywater Treatment System
Automatic Feeding Solution for Homebiogas
Designing a residential-size Greywater treatment system,
treated water will then be used by the irrigation system.
Designing an automatic feeding solution for the HomeBiogas
system, the process is meant to make the waste recycling
more convenient for the user.
Solar Decathlon China 2017
:
Smart Greenhouse
Rainwater harvesting system
Designing a Smart Climate controlled Greenhouse for home
use. The main purpose of the greenhouse, and to which it
was designed for is ‘Germination’, to maximize the
production of home-grown food.
Designing a Rainwater harvesting system for irrigation, using
gravitation to channel the water.
Automated Feeding Solution for HomeBiogas
Comprised of the HomeBiogas unit, a peristaltic
hose pump for easy maintenance, and control
unit for flow control purposes.
Load Generator
Load[W]
People
1500
Oven
680
Cooking Top
3600
Washing Machine
1050
Clothes Dryer
2300
Refigerator
30
Dishwasher
780
Computer
200
TV
200
Kitchen Lighting
60
Bedroom Lighting
11.2
Bathroom Lighting
20
Entrance Lighting
10
Living room Lighting
104
Exterior Lighting
7
Total
10552.2
Floor
External
Heat
Gain[W]
Internal
Heat
Gain[W]Qtot [W]
Qtot
[BTU/hr]
First
739.95 7195.2 7935.15 27074.73
Second
1030.99 3383.6 4414.59 15062.61
Floor
External
Heat
Loss[W]
Internal
Heat
Gain[W] Qtot [W]
Qtot
[BTU/hr]
First
1668.12
-
7195.2 5527.0718858.39
Second
2194.82
-
3383.6 1188.77 4056.09
Summer
Winter
First floor
Second floor
Location and channeling (with return channels) of all
systems in the house.
Distribution of heat loads inside the house
and selection of systems accordingly:
Air conditioning and ventilation:
Ventilation units chosen according to air flow requirements
of the ‘Passive-House’ standard (0.3 Exchanges/hour).
Smart Greenhouse
•
Designed to be integrated in ‘Team Israel’s’ house in
the ‘Solar Decathlon 2017, China’ competition.
•
Germination capacity- 1,500 seeds
at a time- using germination trays.
•
Evaporative cooling using
Ventilation and Misting system.
•
Multiple sensor deployment for accurate readings in
and out of the greenhouse for effective control over
the different subsystems to achieve maximum
germination percentage.
•
Products- Heat loads, CFM
calculations, Static analysis,
Air-flow simulation.
Rainwater harvesting system
•
Accumulation volume- 5
3
,
used for irrigation only
.
•
Serially connected 5 IBC tanks.
•
Channeled using gravity. Roof area- 119
[
2
]
.