Lecture Objectives: Discus Final Project Learn about Solar Systems HW4 (final HW assignment) Continue with learning about HVAC systems - Review those built in eQUEST

Final Project Topics You need to form groups: Maximum 3 members Grad Students – individual projects You need to visit me during the next week+ Office hours: Thursday by appointment on Wednesday or on Monday 19th. You need to prepare the project description and Till November 20th

Final Project Topics … Solar Systems (PV and hot water) expand HW 4 Expand HW3 Modeling in matlab Weep holes, attic temperature, façade systems,…. Building Envelope Optimization Campus buildings, AEI competition, …. HVAC systems Lighting Systems Specific building in eQUEST or other softwa …

Solar hot water system

Envelope optimization Previous yrar: AEI Student Competition This year: Opportunity to work on UT Solar Decathlon

HVAC Systems Ventilation, Heat Recovery, Economizers,… AEI Student Competition Building or some other Commercial buildings Residential buildings Saving % - depends on how much ventilation we have in the building

Geothermal Energy Systems (in combination with a cooling machine / heat pump) Summer Winter In the summer, the earth acts as a cooling tower. The Cooling Machine loads the loop with heat, sending warmed water to be cooled by the earth In the winter, the earth acts as the boiler. The Heat Pump extracts heat from the loop, sending cooled water to be warmed by the earth.

Project Fixing Problematic Building at UT Example of ECJ building

HW4 Solar systems

PV system Silicon crystal base Tin film

Hot Water Solar

HW4 Redefine house in Project 1 to be more realistic. a) Find the optimum orientation and positioning angle for your PV solar collectors. b) Size the PV system that will enable that your house became net zero energy house. c) Add an electric hot water heater and calculate the new PV system size. d) Size a hot water solar collector system for your hot water consumption. e) Calculate the number of days when you need to use electric heater and how much energy is consumed by the backup electric heater.

eQUEST HVAC Models Predefined configuration (no change) Divided according to the cooling and heating sources Details in e-quest help file: For example: DX CoilsNo Heating Packaged Single Zone DX (no heating) Packaged single zone air conditioner with no heating capacity, typically with ductwork. Split System Single Zone DX (no heating) Central single zone air conditioner with no heating, typically with ductwork. System has indoor fan and cooling coil and remote compressor/condensing unit. Packaged Terminal AC (no heating) Packaged terminal air conditioning unit with no heating and no ductwork. Unit may be window or through-wall mounted. Packaged VAV (no heating) DX CoilsFurnace Packaged direct expansion cooling system with no heating capacity. System includes a variable volume, single duct fan/distribution system serving multiple zones each with it's own thermostatic control. Packaged Single Zone DX with Furnace Central packaged single zone air conditioner with combustion furnace, typically with ductwork. Split System Single Zone DX with Furnace Central single zone air conditioner with combustion furnace, typically with ductwork. System has indoor fan and cooling coil and remote compressor/condensing unit. Packaged Multizone with Furnace Packaged direct expansion cooling system with combustion furnace. System includes a constant volume fan/distribution system serving multiple zones, each with its own thermostat. Warm and cold air are mixed for each zone to meet thermostat control requirements.