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Inside wood different than outer Outside pieces hold the shade and the bulb is on the middle piece Pieces holding it up are thin and linked together with a third? wood Base is a mix of the main two (all three?) woods
Color Temperature Orange (CTO)Color Temperature Blue (CTB)
Window Controllers:Sensors: BLE devices w/ temp, pressure, humidity sensors
Automatic opening and closing of the windowIoT/Bluetooth connectivityAdditionalStand for fanBlind opener/closer (use the same motor?)
MotorMicrocontrollerHumidityPlug (or battery)
Secondary:
CFM: cubic feet per minute, flow rateWatt-hour (Wh): a measure of electrical energy equivalent to a power consumption of one watt for one hourBritish Thermal Units (BTU): amount of energy necessary to raise the temperature of one amount of water from 60F to 61FMBH: thousands BTU’s per hourCoefficient of Performance (COP): ratio of thermal output (heating or cooling) to energy inputYearly weather profileOperating schedulesBuilding envelope conditions
R-410a: New standard, more efficient, no ozone damage, operates at higher pressures, requiring use of tougher and more durable parts, increasing life of system.R-22 (freon): Old standard, now illegal in any system manufactured after 2010, no longer imported or manufactured after 2020. Less energy efficient (absorbing and releasing heat), contributes to depletion of ozone, rising prices.
Energy Efficiency Ratio (EER): fixed set of operating conditions (Tindoor = 80F, Toutdoor = 95F, relative humidity = 50%)Seasonal Energy Efficiency Ratio (SEER): averages performance across a range of outdoor temperatures typical of the cooling season.
US DOE: 3% degradation for unmaintained, 1% for completely maintained systemsFlorida Test: median 5.2%degradation=-0.0454+0.00269(Age)+0.030(Tons)-0.00127(SEER)Degradation = -0.0454
Heating Seasonal Performance Factor (HSPF): analogous to SEER, applies for heat pumps in heating mode onlySEER: describes heat pumps during cooling seasonAnnual Fuel Utilization Efficiency (AFUE): used for combustion-based appliances (boilers, furnaces), ratio of effective heating output to total energy contained in the fuel consumedCannot compare w/ the HSPF. Would have to estimate yearly running costs,
idea log
Peppers ghost clock (top flat or pyramid?)
Infinity mirror
Lamp where the with two lights with thin paper as the shades where the center piece is suspended be a piece of walnut that is held up on both sides by other walnut pices that are in a maple stand
Book shelf where the amount of overhang on the shelf is based off of the size of the book that is supposed to go in that spot
Ceiling light that points upwards to a convex mirror that reflects the light and is suspended by wires or pieces of wood
3-5 leg lamp
Light color modification
HVAC
HVhACk: more sustainable HVAC, uses windows and natural air flow
Window Controller
Features
Components:
Curtains
Purpose: regulate the temperature between areas/open up flow
Collaboration:
Competition
Engineering
Units
Quantity
Energy
Metrics
Efficiency:
Energy Modeling
% savings=1-SEERcurrentSEERcurrent*100% *only applies if rated cooling output and operating schedules remain the same after upgrade, otherwise energy consumption in kWh must be calculated separately for existing and projected running conditions
Air Conditioning
Types of Air Conditioners
Types
Coolant
Metrics
Efficiency: ratio of cooling output (BTU) to heating input (watt-hours) (unit = BTU/Wh)
Degradation
Estimated Capacity: BTU/Hr
Heating
Metrics
Efficiency:
Unimotor
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