Residential House HVAC Design _Basic

Name: Residential House HVAC Design _Basic
Rating: 4.4 (14 reviews)

House Heating, Cooling Load Calculation, and ventilation design with Excel Spreadsheet Template

Created byWayne Xue

Last updated 1/2023

English

What you'll learn

know residential home related building science, understand power & energy, sensible heat & latent heat, relative humidity & dew point, Types of heat transfer
The students will understand low rise detached residential building construction types, and building envelop;
Understand R-value (or RSI value) of the building envelope elements: exposed floor, exposed ceiling or roof, walls and fenetration (doors and windows).
The students will learn how to perform foundation heat loss calculation for all types of house foundation constructions.
Understand the minimum ventilation requirement for acceptable indoor air quality of residential homes
The student will be able to distiguish house infiltration and ventilation, and understant why controlled ventilation is important.
know the total ventilation and principle (minimum) ventilation requirement, and perform the ventilation heating and cooling load calculation
know how to perform heat loss and heat gain calculation based on the local climate data, and indoor design temperature according to your local building code.
understand the specific heat of the air, and energy required to raise the temperature of the air
Learn both Metri (SI) & Imperial (IP) Units related to HVAC design
know all following heat gain sources: Building envelop, air infiltration and ventilation, solar radiation of mass effect, shading effect, correction factors.
Understand sensible and latent heat gain, concept of enthalpy in the air, occupants heat gain, and equipment or appliances heat gain.
With the spreadsheet template provided, the students would be able to conduct HVAC heating / cooling load caculation for sample houses.
know how to select HVAC equipment based on the calculated heating, cooling and ventilation load

Course content

7 sections • 16 lectures • 9h 24m total length

Instructor's background _short preview2:28
A short self-introduction preview video
Detailed Introduction _what you may expect from the instructor17:24
This video may give the students better understanding about what may be expected from the instructor.
Building Science _part one44:48
Understand thermal comfort zone for occupants, celsius and fahrenheit, power and energy, HVAC design related SI and IP units conversion; Relative humidity and Dew point, Specific heat of the dry air and energy required to raise the temperature of the air. Distinguish sensible heat and latent heat.
Building Science _part two34:48
Learn the types of residential homes to which this course applies. Prepare basic knowledge about residential home building elements. Understand exposed ceiling, roof, walls, floors and building fenestration. Explore the structural components of residential houses.

Above grade heat loss calculation _part one22:44
Understand U-value and R-value in both metric and imperial units. Perform above grade heat loss calculation for building envelop above the grade. Pratice conduction heat loss calculation based on the given R-value of the building material.
Above grade heat loss calculation _part two29:52
Learn how to perform Equivalent R-Value Calculation for all types of common building envelope assemblies.

Foundation Heat Loss Calculation by CSA-F280-12 Excel Program1:03:54
Foundation heat loss calculation through the use of CSA-F280 excel calculation tool. Identify the differences between slab-on-grade and basement construction differences. Learn thermal bridging concepts, and understand all the types of foundation insulation configuration. Learn "Non-Rectangular Shape Foundation Room Equivalent Length & Equivalent Room Width Calculation", and use the result in the CSA-F280 program.

Foundation Heat Loss Calculation Manually _part one37:21
Upon completion, the students would be able to perform foundation heat loss calculation for buildings located in any geographic locations without the CSA-F280-12 computer program.
Residential HVAC Basic 4 _foundation Heat Loss Calculation by hands _part two34:15
Upon completion, the students would be able to perform foundation heat loss calculation for buildings located in any geographic locations without the CSA-F280-12 computer program.

Infiltration and ventilation Heat Loss _part one1:01:14
Distinguish infiltration and controlled ventilation for residential houses. Learn how to calculate infiltration airflow rate with the CSA-F280 tool or estimate the infiltration airflow rate without using the CSA-F280 tool. Learn the principal ventilation and total ventilation airflow rate requirement as per the building codes. Learn how to calculate building infiltration and ventilation heat loss in both Metric (SI) and Imperial (IP) unit systems.
Infiltration and ventilation heat loss _part two33:40
Learn how to assign the infiltration (air leakage) of residential houses based on the level factors as per CSA-F280 standard. Calculating room heat loss based on the level factor for both air leakage and principal ventilation airflow rate. Understand how the heat recovery ventilator may be installed to satisfy the principal ventilation requirement to minimize the ventilation heat loss and save heating cost.

Home Heat Gain Calculation For Air Conditioning Equipment Sizing _part one29:42
Learn how to use solar correction (SC) factor to calculate the building mass effect in the building envelop heat gain calculation based on the summer daily mean temperature range. Understand how the building orientation, latitude, would be affecting the solar radiation heat gain for windows.
Home Heat Gain Calculation For Air Conditioning Equipment Sizing _part two23:02
Learn how the solar heat gain coefficient of the glass windows, the window orientation, internal and external shading etc. factors would be affecting the calculated solar radiation heat gain for specific windows. Learn how to apply residential building lighting fixtures and home electrical appliances heat gain in the heat gain calculation. Learn how to add occupants sensible and latent heat gain in the total heat gain calculation for a residential house.
Optional Assignment
Assignment 2 : Heat Loss and heat gain calculation

Sample house HVAC Design with Spreadsheet _part one25:23
Sample house construction details are explained. The students will learn the general rules of dividing and naming rooms, and getting ready for the sample house heat loss and heat gain calculation with spreadsheet template.
Sample house HVAC Design with Spreadsheet template _part two57:10
Using the Excel spreadsheet template to calculate conductive heat loss and heat gain for every room, including solar radiation heat gain. Learn how to assign infiltration and ventilation heat loss to each room based on level factor.
Sample house HVAC Design with Spreadsheet Template _part three46:59
Learn how to use the spreadsheet template to calculate residential house infiltration heat loss and heat gain, principal ventilation heat loss and heat gain, to calculate total ventilation airflow requirement. The students will also learn how to select HVAC equipment heating cooling capacity based on the calculated result. The heat and cooling proportional factor will also be explained, and the students will understand heating and cooling airflow requirements, and getting ready for the air system design in other advanced HVAC courses.

Requirements

This course is designed for anyone with basic knowledge of low rise detached or semi-detached residential house, and basic computer skills: microsoft excel.
The students shall have a personnel computer with access to the internet and microsoft Excel to practise calculation..
The students need to have basic understanding of mechanical engineering knowledge with minimum grade 12 education

Description

This course explores the residential house HVAC design technique for typical detached, semi-detached and townhouse low-rise residential houses in Canada. The course includes both heating, Air Conditioning and ventilation (HVAC) load calculation, and prepares the basic knowledge for the HVAC air system design.

The course starts by presenting the basic building elements and common types of low rise residential homes, and explain the method of calculating building foundation conductive heat loss, building envelope (exposed ceiling, roof, floor, wall, door, window and skylights) conductive heat loss and solar heat gain. The course further explores the occupants' heat gain and equipment heat gain, and the method for calculating ventilation and infiltration heating and cooling load.

Through the Q & A section, the students will be provided with an excel template for load calculation and air system design of a sample home. The template is developed and used by the instructor who has successfully completed HVAC design for hundreds of residential houses across Ontario Canada. There are lots of load calculation formulas that will be included in the Microsoft Excel template for students to practise load calculation on their own. The air system design portion is also included in the temperate provided to the students in the basic course, but lecturing of the air system design will be left for the intermediate and advanced HVAC design course.

Despite the template being developed is based on Ontario building code with specific energy efficiency and ventilation requirements in Ontario, and despite all the formulas being in the imperial (IP) format, this Excel template may be easily adopted for any geographic location across the globe. The parameter substitution for all different climate zones will be explained.

This course is offered to students worldwide, so all the calculations will be performed in both unit systems: IP (imperial) and SI (metric). The students will be encouraged to find out the winter and summer design temperature and indoor design temperature for the specific location of the subject house, as well as local building code, ventilation code and HVAC equipment energy efficiency requirements from the specific AHJ (authority having jurisdiction), and design the HVAC systems accordingly. In case the building code and weather date is not available for some climate zones or regions, the course will also provide the students with recommended minimum requirement data.

Upon completion of this course, the students are expected to be able to understand house HVAC systems, to perform basic load calculation, to size the HVAC equipment and to design the HVAC system accordingly for occupants' health and comfort living in their residential homes. The minimum ventilation requirement will be recommended to control the indoor air quality for occupants' health.

Who this course is for:

HVAC Designer
HVAC contractor
HVAC service techician, Gas techinician, sheet metal worker, refrigeration and air conditioning mechanic, or HVAC trade apprentice
Home owner
General contractor or other trade professionals who is interested in HVAC business

Residential House HVAC Design _Basic

What you'll learn

Explore related topics

Course content

Building Science4 lectures • 1hr 39min

Above Grade Heat Loss Calculation2 lectures • 53min

Foundation Heat Loss Calculation By the Tool of CSA-F280-12 Standard1 lecture • 1hr 4min

Foundation Heat Loss Calculation Manually2 lectures • 1hr 12min

Residential Home Air Infiltration and Ventilation, and its Heat Loss Calculation2 lectures • 1hr 35min

Residential Home HVAC Basic 6 _Heat Gain Calculation2 lectures • 53min

Sample house HVAC design with spreadsheet template3 lectures • 2hr 10min

Requirements

Description

Who this course is for: